Podcasts about 100hz

This is the audio from a video. Watch the video here: Fibion Flash vs. ActiHeart 5: The Best Alternative for Researchers    Looking for a powerful alternative to ActiHeart 5? How does Fibion Flash compare in accuracy, battery life, and versatility? In this episode, Dr. Olli Tikkanen presents Fibion Flash as an advanced research tool, offering superior measurement capabilities for physical activity and physiological monitoring. Dr. Tikkanen compares Fibion Flash with ActiHeart 5, highlighting key advantages such as higher sampling rates (up to 500Hz vs. 100Hz), a nine-axis motion sensor (including accelerometer, gyroscope, and magnetometer), and extended battery life of up to 37 days. He demonstrates how the device can measure ECG, heart rate, and heart rate variability while being worn on the chest with a heart rate belt or used on the wrist for motion tracking and biomechanical studies. The episode also covers Fibion Flash's SDK and API, allowing seamless integration into research projects. For researchers looking for a high-precision, affordable alternative to ActiHeart, this episode provides a detailed breakdown of how Fibion Flash outperforms other options. Tune in to learn how this device can enhance your data collection and analysis. __________________ This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle --- Collect, store and manage SB and PA data easily and remotely - Discover ground-breaking Fibion SENS --- Learn more about Fibion Flash - a versatile customizable tool with HRV and accelerometry capability.  --- SB and PA measurements, analysis, and feedback made easy. Learn more about Fibion Research. --- Fibion Helix – Ideal for large scale studies. Scalable and affordable with patented precision. --- Fibion G2 – validated data on sitting, standing, activity types, energy expenditure, with participant friendly reports.   --- Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions. --- Fibion Kids - Activity tracking designed for children. --- Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles. --- Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods. --- Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide. --- Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview. --- Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ". --- For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability. --- Follow the podcast on Twitter https://twitter.com/PA_Researcher  Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen  Follow Fibion on Twitter https://twitter.com/fibion  Check our YouTube channel: https://www.youtube.com/@PA_Researcher 

As notícias de hoje, que estão com os tempos marcados aqui embaixo são: Nubank agora faz Pix via IA ou WhatsApp, Esportes dominam buscas dos brasileiros no Google em 2024, conheça o novo e poderoso processador para computação quântica do Google, Lei que pode banir o TikTok não fere liberdade de expressão, decidem juízes dos EUA, Anatel fecha parceria com Ministério da Fazenda para acelerar bloqueio de bets ilegais. 

This time out on the B Beats podcast, we have a guest mix from extended B Beats family member, Amber Vimana! A 2 hour mix of acid, bleeps and bass infused beats, lovingly curated to take you on a journey from the familiar to the unknown. Featured artists include: Hardfloor, Black Dog, Orbital, Nexus 21, N.O.W, Metropolis, Unique 3, Tin Man, Tough Little Unit, 100Hz, LFO So sit back, turn up the volume and get ready for a 303, 808, 909 adventure!! Check out Amber on Soundcloud for both mixes and original tunes:   https://soundcloud.com/amber-vimana  https://soundcloud.com/sparklycastles Big B Beats love to Amber for sending us this mix! If you would like to have a guest mix featured, please contact us via Facebook or our website. www.bbeatsmusic.com Enjoy…

It's a week of celebration and anticipation, as Apple's longest-surviving device enters its fifth decade, and it's newest device is still a tantalizing few days away.Contact your hosts@williamgallagher_ on Threads@WGallagher on TwitterWilliam's 58keys on YouTubeWilliam Gallagher on email@hillithreads on Threads@Hillitech on TwitterWes on MastodonWes Hilliard on emailSponsored by:Notion: Try out the incredible power of Notion AI today! For a limited time, try Notion AI for free when you visit: notion.com/appleinsiderLINKS FROM THE SHOW:Wes on iPad Pros podcastApple execs praise 'unbelievable' 40 years of MacsForty years of the Mac, the computer for the rest of usLook back in time at Apple's original Mac development teamWebsite with over 1,000 photos of Macs: https://mac40th.com/ICONIC book: https://www.amazon.de/dp/3837525260Windows emulation https://bellard.org/jslinux/Apple Vision Pro storage and AppleCare prices revealedApple Vision Pro screen refresh rate is up to 100Hz, it has Bluetooth 5.3, and more technical detailsApple Vision Pro shipment dates slip nearly instantlyDon't buy on eBay: Apple Vision Pro resale prices on eBay are ridiculousApple Vision Pro and Taylor Swift have one thing in common — botsApple sells up to 180,000 Apple Vision Pro, says KuoMike: Apple Vision Pro is not the iPhone, and faces an incredibly steep uphill climbiPad, iPad Air, iPad mini, iPad Pro: What to expect from Apple in 2024Musical comedy 'Schmigadoon!' dies in Schmicago, won't return for a third season'Killers of the Flower Moon' nominated for 10 Oscars, including Best PictureChildren's programming takes a hit as Apple TV+ lays off eight staffersApple Car is delayed — againSupport the showSupport the show on Patreon or Apple Podcasts to get ad-free episodes every week, access to our private Discord channel, and early release of the show! We would also appreciate a 5-star rating and review in Apple PodcastsMore AppleInsider podcastsTune in to our HomeKit Insider podcast covering the latest news, products, apps and everything HomeKit related. Subscribe in Apple Podcasts, Overcast, or just search for HomeKit Insider wherever you get your podcasts.Subscribe and listen to our AppleInsider Daily podcast for the latest Apple news Monday through Friday. You can find it on Apple Podcasts, Overcast, or anywhere you listen to podcasts.Podcast artwork from Basic Apple Guy. Download the free wallpaper pack here.Those interested in sponsoring the show can reach out to us at: advertising@appleinsider.com (01:16) - Mac as Windows 2000 (06:44) - Mac therapy (12:10) - Mac's 40th (15:32) - Vision Pro (19:08) - Nashville ahoy (23:04) - Apple Vision SE (28:10) - Headset weight and wait (47:56) - Innovation (51:20) - iPads (52:50) - Paste (57:06) - Apple TV+ ★ Support this podcast on Patreon ★

Contact your host with questions, suggestions, or requests about sponsoring the AppleInsider Daily:charles_martin@appleinsider.com(00:00) - 01 - Intro (00:16) - 02 - An NFC-change at Apple (00:54) - 03 - Here we go with Apple Vision Pro (01:53) - 04 - AVP: AirPlay downgrade (02:19) - 05 - AVP: Price tears ... we mean tiers (02:44) - 06 - AVP: AppleScare (03:54) - 07 - AVP: Guided Video Tour (04:20) - 08 - AVP: The Making Of (04:43) - 09 - AVP: dirty deets not done dirt cheap (06:08) - 10 - AVP: Accessory makers also have a vi$ion (06:55) - 11 - AVP: $econdary $ources (07:46) - 12 - Outro Links from the showApple will allow third-parties in the EU access to the iPhone NFC chipApple Vision Pro shipment dates slip nearly instantlyApple cuts back AirPlay streaming resolution from Apple Vision Pro's displaysApple Vision Pro storage and AppleCare prices revealedDamaged Apple Vision Pro repairs cost up to $2,399Vision Pro details revealed in new Apple Guided Tour'Making Apple Vision Pro' video delves into precise aluminum cutting & assemblyApple Vision Pro screen refresh rate is up to 100Hz, it has Bluetooth 5.3, and more technical detailsApple and a very few third parties unveil first Vision Pro accessoriesApple Vision Pro resale prices on eBay are ridiculousSubscribe to the AppleInsider podcast on:Apple PodcastsOvercastPocket CastsSpotifySubscribe to the HomeKit Insider podcast on:•  Apple Podcasts•  Overcast•  Pocket Casts•  Spotify

Welcome to Pocket-Sized Podcasting, brought to you by Alitu: The Podcast Maker. And on this episode, we’re talking about sample rates. Sample rates are measured in hertz, or “Hz”. Like bitrates, sample rates in audio determine audio quality and file size. You could compare them to pixels in a photograph. Some platforms and tools will ask you to set a sample rate prior to hitting record. The most common sample rate, and one we’d recommend, is 44,100Hz. If you were to load up your audio in your DAW and zoom right in as far as you can, you’d see your audio represented as little dots. The more dots per second, the higher the sample rate. Again, these are just like pixels. So next time you record in your DAW, choose 44,100Hz. Or, just use Alitu and yet again, you won’t need to worry about this at all. For a deeper dive on this topic, head on over to http://thepodcasthost.com/samplerates

Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2023.07.21.550057v1?rss=1 Authors: Griffiths, B. J., Weinert, D., Jensen, O., Staudigl, T. Abstract: Enhanced gamma activity (30-100Hz) coincides with the successful recall of episodic memories, but it remains unknown whether this oscillatory activity is a cause or a consequence of the retrieval process. To address this question, we asked human participants to complete a paired associates memory task while undergoing sensory stimulation (at 65Hz, 43.3Hz and 32.5Hz). We observed that 65Hz and 32.5Hz sensory stimulation enhances recall compared to a baseline condition without stimulation. No similar effect was observed following 43.3Hz stimulation. Notably, while almost all participants could perceive 32.5Hz and 43.3Hz sensory stimulation, only a small proportion of participants (~10%) could perceive the 65Hz visual flicker, suggesting 65Hz sensory stimulation acts as an imperceptible intervention to enhance recall. To understand the dual action of 65Hz and 32.5Hz sensory stimulation on recall, we built three pyramidal-interneuronal network gamma (PING) models and drove them using the same stimulation protocols as in the behavioural task. The behavioural results could be reproduced by stimulating an endogenous ~32Hz oscillation, but not by stimulating an endogenous ~65Hz oscillation nor by stimulating a network without an endogenous oscillation. These results suggest that imperceptible 65Hz sensory stimulation enhances recall by harmonically entraining an endogenous ~32.5Hz oscillation. Based on these findings, we propose that 'slow' gamma oscillations play a causal role in episodic memory retrieval. Copy rights belong to original authors. Visit the link for more info Podcast created by Paper Player, LLC

Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2023.04.10.536138v1?rss=1 Authors: Broggini, A. C., Onorato, I., Tzanou, A., Sotomayor, B., Uran, C., Vinck, M. Abstract: Cortical information processing is thought to be facilitated by the resonant properties of individual neurons and neuronal networks, which selectively amplify inputs at specific frequencies. We used optogenetics to test how different input frequencies are encoded by excitatory cells and parvalbumin-expressing (PV) interneurons in mouse V1. Spike phase-locking and power increased with frequency, reaching a broad peak around 80-100Hz. This effect was observed only for Chronos, a fast-kinetic opsin, but not for Channelrhodopsin-2. Surprisingly, neurons did not exhibit narrow-band resonance in specific frequency-ranges, and showed reliably phase-locking up to 140Hz. Strong phase-locking at high frequencies reflected non-linear input/output transformations, with neurons firing only in a narrow part of the cycle. By contrast, low-frequency inputs were encoded in a more continuous manner. Correspondingly, spectral coherence and firing rates showed little dependence on frequency and did not reflect transferred power. To investigate whether strong phase-locking facilitated the reliable encoding of inputs, we analyzed various spike-train distances and Fano factor. Interestingly, responses to lower rather than higher frequencies had more globally reliable spike-counts and timing structure. These findings have various practical implications for understanding the effects of optogenetic stimulation and choice of opsin. Furthermore, they show both PV and excitatory neurons respond with more local precision, i.e. phase-locking, to high-frequency inputs, but have more globally reliable responses to low-frequency inputs, suggesting differential coding regimes for these frequencies. Copy rights belong to original authors. Visit the link for more info Podcast created by Paper Player, LLC

SVB & tech's transformation from innovation to financialization; Elon being Elon; SEC sues celebs for endorsing crypto; TikTok bans are complicated; it's all about the privacy rights, stupid; not everything needs an AI chatbot; a list of dumb chatbots; online platforms are not responsible for ISP costs; Twitter allows non-toxic slurs, because Elon; South Park may have used ChatGPT to write AI episode; true prices for TV service; streaming services rankings; Depeche Mode; Ted Lasso; Picard; the Last of Us; the Money Shot; Beethoven's genome; Labours of Hercule; DPReview; Adobe adds generative AI; Duelingo looking into music learning; MOFT mount; our Samsung monitors; the Mandalorian; frustrations with renting cars; Blackmamba AI malware; Meredith Willson & Disney music.Show notes at: https://gog.show/594/Sponsors:DeleteMe - Head over to JoinDeleteMe.com/GOG and use the code "GOG" for 20% off.Kolide - Visit kolide.com/gog to learn more or book a demo.FOLLOW UPWhy No One Cried for Silicon Valley Bank's CustomersHow Elon Musk knocked Tesla's ‘Full Self-Driving' off courseIN THE NEWSSEC sues celebrities including Lindsay Lohan for endorsing cryptocurrenciesA TikTok ban is a lot more complicated than just shutting down the appTikTok's Chinese Owner Has a Bunch of Other Popular AppsTikTok Paid for Influencers to Attend the Pro-TikTok Rally in DCThe TikTok Hearing Revealed That Congress Is the ProblemTikTok CEO says company scans public videos to determine users' agesNot Everything Needs a Chatbot!New! Try Zapier's ChatGPT pluginGitHub CopilotMeta slams telco fee proposal, says ISPs should pay their own network costsTwitter now allows "non-toxic slurs" as long as the slurs are not hate speechMEDIA CANDYSouth Park Creators Use ChatGPT To Co-Write Episode About AICable and satellite providers may have to advertise the true price of TV serviceThe best live TV streaming services in 2023Apple TV+ global market share shrinks and platform is overtaken by Paramount+Spotify has reportedly spent less than 10 percent of its Joe Rogan apology fundDepeche Mode - Memento MoriTed LassoPicardThe Last of UsMoney Shot: The Pornhub StoryBeethoven's genome, sequenced for first time, yields clues on cause of deathImmortal BelovedThe Labours of Hercule PodcastAPPS & DOODADSDPReview.com is closing April 10thAdobe is bringing generative AI features to Photoshop, After Effects and Premiere ProDuolingo is building a music learning appSend a voice message in chats on InstagramMOFT Magnetic Laptop iPhone Mount, Continuity Camera Mount, Foldaway Portable Laptop Top & Side Holder for Dual-Screen Setup - GraySAMSUNG CJ79 Series 34-Inch ViewFinity Ultrawide QHD (3440x1440) Computer Monitor, 100Hz, Thunderbolt 3 Daisy Chain, QLED, HDMI, USB Hub, Height Adjustable Stand (LC34J791WTNXZA), WhiteSECURITY HAH!The CyberWireDave BittnerHacking HumansCaveatControl LoopThe MandalorianThe Bad BatchBLACKMAMBA: USING AI TO GENERATE POLYMORPHIC MALWAREMeredith Willson: America's Music ManCLOSING SHOUT-OUTSR.I.P Lance ReddickSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Lambda State | Himalayan Tibetan Monks Tradition Meditation | Complete Oneness And Wholeness Frequency: Lambda waves oscillate at a frequency of  100-200 Hz. * Oscillate means to move or swing back and forth in a regular rhythm. Overview: Lambda are very high frequency waves, much higher than the Gamma frequency range, and even higher than the Hyper Gamma range, which is around the 100Hz mark. As mentioned in the introduction, Lambda waves are closely related to Epsilon waves. Interestingly, if you zoom in far enough you would see that embedded within the slow Epsilon wave is a very fast Lambda wave. The Epsilon wave is essentially riding on the Lambda wave. Lambda waves are associated with experienced meditators, such as the Tibetan monks, who are able to meditate in the Himalayan mountains for hours without succumbing to the very low temperatures. Similarly, you may have heard of a man known as the ‘Iceman', who is able to control his core body temperature and withstand freezing temperatures. It is thought that he is able to tap into the Lambda waves brain state for a prolonged period of time. Wim Hof, the Iceman. Like the Himalayan Tibetan Monks he is able to meditate at extremely low temperatures. Lambda is therefore associated with a much higher level of consciousness, beyond simply deep meditation or spiritual consciousness. It is more a state of complete oneness and wholeness. Benefits: The Lambda state seems to be an almost a secretive one, one that is somewhat shrouded in mystery. And that would make sense considering it is incidentally tied to the Tibetan meditation tradition. Lambda is often associated with a moment of discovery and insight that is indescribable, an “aha” moment, so to speak. I guess the best way of putting it would be if you suddenly understood the meaning of life: you'd be able to feel it and sense it, but unable to put it into words. SUBSCRIBE NOW

Towards a Better Understanding of OPD Limitations for Higher Sensitivity and Contrast at the VLTI by Benjamin Courtney-Barrer et al. on Monday 19 September Precise control of the optical path differences (OPD) in the Very Large Telescope Interferometer (VLTI) was critical for the characterization of the black hole at the center of our Galaxy - leading to the 2020 Nobel prize in physics. There is now significant effort to push these OPD limits even further, in-particular achieving 100nm OPD RMS on the 8m unit telescopes (UT's) to allow higher contrast and sensitivity at the VLTI. This work calculated the theoretical atmospheric OPD limit of the VLTI as 5nm and 15nm RMS, with current levels around 200nm and 100nm RMS for the UT and 1.8m auxillary telescopes (AT's) respectively, when using bright targets in good atmospheric conditions. We find experimental evidence for the $f^{-17/3}$ power law theoretically predicted from the effect of telescope filtering in the case of the ATs which is not currently observed for the UT's. Fitting a series of vibrating mirrors modelled as dampened harmonic oscillators, we were able to model the UT OPD PSD of the gravity fringe tracker to $

Model-based cross-correlation search for gravitational waves from the low-mass X-ray binary Scorpius X-1 in LIGO O3 data by The LIGO Scientific Collaboration et al. on Wednesday 07 September We present the results of a model-based search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1 using LIGO detector data from the third observing run of Advanced LIGO, Advanced Virgo and KAGRA. This is a semicoherent search which uses details of the signal model to coherently combine data separated by less than a specified coherence time, which can be adjusted to balance sensitivity with computing cost. The search covered a range of gravitational-wave frequencies from 25Hz to 1600Hz, as well as ranges in orbital speed, frequency and phase determined from observational constraints. No significant detection candidates were found, and upper limits were set as a function of frequency. The most stringent limits, between 100Hz and 200Hz, correspond to an amplitude h0 of about 1e-25 when marginalized isotropically over the unknown inclination angle of the neutron star's rotation axis, or less than 4e-26 assuming the optimal orientation. The sensitivity of this search is now probing amplitudes predicted by models of torque balance equilibrium. For the usual conservative model assuming accretion at the surface of the neutron star, our isotropically-marginalized upper limits are close to the predicted amplitude from about 70Hz to 100Hz; the limits assuming the neutron star spin is aligned with the most likely orbital angular momentum are below the conservative torque balance predictions from 40Hz to 200Hz. Assuming a broader range of accretion models, our direct limits on gravitational-wave amplitude delve into the relevant parameter space over a wide range of frequencies, to 500Hz or more. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.02863v1

Welcome to Pocket-Sized Podcasting, brought to you by Alitu: The Podcast Maker. And on this episode, we're talking about sample rates. Sample rates are measured in hertz, or “Hz”. Like bitrates, sample rates in audio determine audio quality and file size. You could compare them to pixels in a photograph. Some platforms and tools will ask you to set a sample rate prior to hitting record. The most common sample rate, and one we'd recommend, is 44,100Hz. If you were to load up your audio in your DAW and zoom right in as far as you can, you'd see your audio represented as little dots. The more dots per second, the higher the sample rate. Again, these are just like pixels. So next time you record in your DAW, choose 44,100Hz. Or, just use Alitu and yet again, you won't need to worry about this at all. For a deeper dive on this topic, head on over to http://thepodcasthost.com/samplerates

"A gamma wave is the fastest type of brain activity. It is in charge of cognitive function, learning, memory, and data processing." Gamma waves aid attention, focus, sensory binding (smell, sight, and hearing), consciousness, mental processing, and perception under ideal conditions. Free Weekly Newsletter To Learn Meditation So You Can Meditate More Effectively HERE... Free Weekly Lessons To Learn Meditation So You Can Meditate More Effectively HERE... Visit Meditation Life Skills On Youtube For Even More Meditation Resources! Visit Meditation Life Skills On YouTube For Even More Meditation Resources! When you're actively processing information and learning, your brain creates the fastest of brain waves, gamma waves. These brainwaves, which tend to register above 35 Hz, show that you're focused and solving difficulties. Neuroscientists believe that gamma waves can connect information from all sections of the brain — the gamma wave originates in the thalamus and flows 40 times per second from the back to the front of the brain — and that the gamma wave influences the entire brain.  The gamma state is one of peak mental and physical performance due to this quick "full sweep" activity. Gamma is the brainwave state that makes you feel like you can accomplish anything. Listen to this audio file as often as you want with headphones, sitting or lying down in a comfortable position. You're going to want to read this if you've been experiencing symptoms such as forgetfulness, a lack of mental clarity and focus, or both... Recent research conducted by the Center for Neuroscience at the Indian Institute of Science has shown that decreased electrical activity in the brain could be an early warning sign of age-related cognitive decline. Studies using EEG have shown that people who have been diagnosed with Alzheimer's disease or mild cognitive impairment have lower levels of gamma brainwave activity than healthy individuals of the same age. Research Scholar with a Ph.D., Murty Dinavahi, states that... We found that the intensity of gamma waves decreased in the early stages of age-related cognitive decline... Alterations in these electrical signals might serve as an early indicator of an impending disease. Why gamma waves are of such critical significance... 1. Gamma waves are linked to elevated levels of thought and focus, improved concentration, and even improved hand-eye coordination (great for golf and racket sports). 2. Gamma waves provide a number of benefits, including the following: 3. Enhanced cognitive capabilities and capacity for creative problem-solving 4. Enhanced processing of incoming information 5. Memory enhancement 6. Lengthened capacity for focused attention 7. Heightened levels of consciousness and mindfulness 8. Improved cognitive health and immune response in the brain Therefore, if you find that you are daydreaming, experiencing mental fuzziness, and being unable to concentrate for more than a few minutes... Or you may have noticed that your memory is getting worse, such as becoming more forgetful and unable to recall information as easily as you once did... Or even if you have the impression that your cognitive ability is deteriorating, such as when you have a harder time than usual processing information and finding solutions to problems... Here are some options available to you... If you want to boost your cognition and possibly slow down the cognitive decline that comes with aging, listening to gamma wave binaural beats for thirty minutes every day is recommended. Imagine the situation in this way... If your body is lacking in a particular vitamin or mineral, taking a supplement can help bring your levels back up to normal. Binaural beat therapy is a supplement that you can take to increase the amount of gamma brainwave activity you experience. Binaural beats bring the right and left hemispheres of your brain into balance, which in turn increases the level of coherence within the brain. More specifically, if you listen to Gamma Wave binaural beats while wearing headphones, you will experience an increase in your gamma waves as a result of a phenomenon known as brainwave entrainment. This is when the activity in your brain literally falls into rhythm with the binaural beat. MeditationLifeSkills.com Important Website Links : Learn How To Meditate Properly... Learn About Meditation For Beginners Guides Here... Free Meditation Music Downloads Here... Find Out How Brainwave Entrainment Can Deepen Your Meditation Practice Here... Get Your FREE Guided Meditation Mp3s Here... Explore Effective Techniques For Meditation And Expand Your Practice Here... Create Your New Life By Learning Mindfulness Meditation Here... Listen to this audio file as much as you want in a comfortable position, whether sitting or lying down. When listening, headphones are usually recommended to avoid distractions. ***Note: This content is for informational purposes only and is not intended as medical advice, or as a substitute for the medical advice of a physician. WHILE LISTENING TO SLEEP MEDITATION MUSIC, BINAURAL BEATS, OR GUIDED SLEEP RELAXATIONS, DO NOT DRIVE OR OPERATE MACHINERY. * Affiliate Disclosure: Our website is supported by our users. We sometimes earn a small commission that helps to support this project when you click through the affiliate links on our website. You do not pay for this commission in any way. Help me, help you! Let's build this together. Please leave your comments and questions below. Thank you for being a part of the Meditation Life Skills Podcast.

Welcome to The Nonlinear Library, where we use Text-to-Speech software to convert the best writing from the Rationalist and EA communities into audio. This is: What Is a Major Chord?, published by jefftk on April 24, 2022 on LessWrong. In the discussion on my minimal chords post, someone commented: I have no idea what any of this means (what is a chord? what is a major chord? what is a note? what is a first/fourth/fifth note? is there a 65th note? what is a scale? what is a major scale? what does it mean that a note is of a scale? what does it mean that a chord uses a note? is there a difference between a chord using a note of a scale and not of a scale?) Here's an attempt to introduce enough music theory to answer these questions: We hear changes in air pressure. If those changes are rapid enough and consistent enough, we hear them as pitch (frequency). We can talk about these in terms of how many changes we get per second, which we call "Hz". For example, a pitch could be 100Hz or 500Hz. When we say a pitch is "higher" or "above" another pitch, we mean more changes per second: 500Hz is higher than 100Hz. A note is something that gives the impression of being a single pitch. For example, what you get when you play a single key on the piano, or pluck a string on a stringed instrument. Many instruments can only play one note at a time: trumpet, flute, saxophone. The standard notes used in Western music differ in pitch by a factor of the 12th root of 2 (~1.06x). This means that if you go up twelve notes (which we call "half steps", confusingly) your pitch doubles (the 12th root of 2, multiplied by itself twelve times, is just 2). Two notes whose pitch differs by a factor of two (ex: 100Hz and 200Hz) are said to be an "octave" apart, and sound almost like the same note. We give notes that differ by some number of octaves the same name (ex: "C"), though when we want to be specific about which octave we're talking about we can append numbers ("C1" at ~32Hz is an octave above "C0" at ~16Hz). A scale is a set of notes from an octave. We usually talk about a scale as being sorted from lowest note to highest. We can define a scale by the distances between its notes. Perhaps the simplest scale (the "chromatic scale") would be to go up by one note each time, playing every note: 111111111111. This typically doesn't sound very good, and we don't usually use it. A "major scale" has the pattern 2212221: you go up by two notes, two notes, one note, etc. This gives you seven different notes in your octave. We can call these notes the "first", "second", etc notes of the major scale. We typically don't talk about "65th" notes because they would be way too high. We name the notes with the letters A through G, which is only seven options for twelve notes. Each letter refers to a note that is one or two notes higher than the previous. For example, if we have the notes "A B C", to go from A to B we go up two notes, while from B to C we go up one note. To refer to the note we skipped when going from A to B we can say say "A#" ("A sharp") which means "start at A and go up one note" or "Bb" ("B flat") which means "start at B and go down one note". This is all very silly, but it's what we're stuck with for historical reasons. If you start with C and go up through the notes of the major scale, you will use the seven named notes: "C D E F G A B". A chord is multiple notes played at the same time. The chords I was talking about in my post were "triads", which means they are three simultaneous notes. A major chord is notes one, three, and five of a major scale. A minor chord is the same, but the middle note (three) is moved down one note, which we call "flat" or "minor". You can also skip the third and play just notes one and five ("open fifths" or "power chords") which I do a lot on mandolin. A key is the combination of a scale and a starting note. For example, "C major" is a major scale starting a C, while "D major" is the same but starting on a D. Mos...

Link to original articleWelcome to The Nonlinear Library, where we use Text-to-Speech software to convert the best writing from the Rationalist and EA communities into audio. This is: What Is a Major Chord?, published by jefftk on April 24, 2022 on LessWrong. In the discussion on my minimal chords post, someone commented: I have no idea what any of this means (what is a chord? what is a major chord? what is a note? what is a first/fourth/fifth note? is there a 65th note? what is a scale? what is a major scale? what does it mean that a note is of a scale? what does it mean that a chord uses a note? is there a difference between a chord using a note of a scale and not of a scale?) Here's an attempt to introduce enough music theory to answer these questions: We hear changes in air pressure. If those changes are rapid enough and consistent enough, we hear them as pitch (frequency). We can talk about these in terms of how many changes we get per second, which we call "Hz". For example, a pitch could be 100Hz or 500Hz. When we say a pitch is "higher" or "above" another pitch, we mean more changes per second: 500Hz is higher than 100Hz. A note is something that gives the impression of being a single pitch. For example, what you get when you play a single key on the piano, or pluck a string on a stringed instrument. Many instruments can only play one note at a time: trumpet, flute, saxophone. The standard notes used in Western music differ in pitch by a factor of the 12th root of 2 (~1.06x). This means that if you go up twelve notes (which we call "half steps", confusingly) your pitch doubles (the 12th root of 2, multiplied by itself twelve times, is just 2). Two notes whose pitch differs by a factor of two (ex: 100Hz and 200Hz) are said to be an "octave" apart, and sound almost like the same note. We give notes that differ by some number of octaves the same name (ex: "C"), though when we want to be specific about which octave we're talking about we can append numbers ("C1" at ~32Hz is an octave above "C0" at ~16Hz). A scale is a set of notes from an octave. We usually talk about a scale as being sorted from lowest note to highest. We can define a scale by the distances between its notes. Perhaps the simplest scale (the "chromatic scale") would be to go up by one note each time, playing every note: 111111111111. This typically doesn't sound very good, and we don't usually use it. A "major scale" has the pattern 2212221: you go up by two notes, two notes, one note, etc. This gives you seven different notes in your octave. We can call these notes the "first", "second", etc notes of the major scale. We typically don't talk about "65th" notes because they would be way too high. We name the notes with the letters A through G, which is only seven options for twelve notes. Each letter refers to a note that is one or two notes higher than the previous. For example, if we have the notes "A B C", to go from A to B we go up two notes, while from B to C we go up one note. To refer to the note we skipped when going from A to B we can say say "A#" ("A sharp") which means "start at A and go up one note" or "Bb" ("B flat") which means "start at B and go down one note". This is all very silly, but it's what we're stuck with for historical reasons. If you start with C and go up through the notes of the major scale, you will use the seven named notes: "C D E F G A B". A chord is multiple notes played at the same time. The chords I was talking about in my post were "triads", which means they are three simultaneous notes. A major chord is notes one, three, and five of a major scale. A minor chord is the same, but the middle note (three) is moved down one note, which we call "flat" or "minor". You can also skip the third and play just notes one and five ("open fifths" or "power chords") which I do a lot on mandolin. A key is the combination of a scale and a starting note. For example, "C major" is a major scale starting a C, while "D major" is the same but starting on a D. Mos...

Welcome to The Nonlinear Library, where we use Text-to-Speech software to convert the best writing from the Rationalist and EA communities into audio. This is: Cached Thoughts, published by Eliezer Yudkowsky on the AI Alignment Forum. One of the single greatest puzzles about the human brain is how the damn thing works at all when most neurons fire 10–20 times per second, or 200Hz tops. In neurology, the “hundred-step rule” is that any postulated operation has to complete in at most 100 sequential steps—you can be as parallel as you like, but you can't postulate more than 100 (preferably fewer) neural spikes one after the other. Can you imagine having to program using 100Hz CPUs, no matter how many of them you had? You'd also need a hundred billion processors just to get anything done in realtime. If you did need to write realtime programs for a hundred billion 100Hz processors, one trick you'd use as heavily as possible is caching. That's when you store the results of previous operations and look them up next time, instead of recomputing them from scratch. And it's a very neural idiom—recognition, association, completing the pattern. It's a good guess that the actual majority of human cognition consists of cache lookups. This thought does tend to go through my mind at certain times. There was a wonderfully illustrative story which I thought I had bookmarked, but couldn't re-find: it was the story of a man whose know-it-all neighbor had once claimed in passing that the best way to remove a chimney from your house was to knock out the fireplace, wait for the bricks to drop down one level, knock out those bricks, and repeat until the chimney was gone. Years later, when the man wanted to remove his own chimney, this cached thought was lurking, waiting to pounce . . . As the man noted afterward—you can guess it didn't go well—his neighbor was not particularly knowledgeable in these matters, not a trusted source. If he'd questioned the idea, he probably would have realized it was a poor one. Some cache hits we'd be better off recomputing. But the brain completes the pattern automatically—and if you don't consciously realize the pattern needs correction, you'll be left with a completed pattern. I suspect that if the thought had occurred to the man himself—if he'd personally had this bright idea for how to remove a chimney—he would have examined the idea more critically. But if someone else has already thought an idea through, you can save on computing power by caching their conclusion—right? In modern civilization particularly, no one can think fast enough to think their own thoughts. If I'd been abandoned in the woods as an infant, raised by wolves or silent robots, I would scarcely be recognizable as human. No one can think fast enough to recapitulate the wisdom of a hunter-gatherer tribe in one lifetime, starting from scratch. As for the wisdom of a literate civilization, forget it. But the flip side of this is that I continually see people who aspire to critical thinking, repeating back cached thoughts which were not invented by critical thinkers. A good example is the skeptic who concedes, “Well, you can't prove or disprove a religion by factual evidence.” As I have pointed out elsewhere,1 this is simply false as probability theory. And it is also simply false relative to the real psychology of religion—a few centuries ago, saying this would have gotten you burned at the stake. A mother whose daughter has cancer prays, “God, please heal my daughter,” not, “Dear God, I know that religions are not allowed to have any falsifiable consequences, which means that you can't possibly heal my daughter, so . . . well, basically, I'm praying to make myself feel better, instead of doing something that could actually help my daughter.” But people read “You can't prove or disprove a religion by factual evidence,” and then, the next time they see a piece of evidence disproving a religion, their brain completes the pattern. Even some atheist...

"Not all distortion is horrible" is a notion many come to observe at some point along the audiophile journey. Maybe that's not the best way to put it. How about,  "some distortions are less horrible than others".In past episodes of The Hifi Podcast, Darren and Duncan have talked about complex versus simple distortions, and the fact that simple circuits and simple devices distort simply. And simple distortion is much, much more tolerable to our ears.Intermodulation distortion (IMD) is a complex beast of a distortion, creating byproducts of the difference between competing frequencies. A shimmering cymbal hit with fundamentals of 9KHz and 9.1KHz for example will produce an IMD product of 100Hz. Yes, that's right - artificial bass noise created from within the amplifier, for just these two tones. Imagine what happens with real music playing!This week's episode focuses on IMD and explains why amps are the biggest culprits of this sonic bugaboo.Also in this episode, the guys answer a couple questions about system battery power and round listening rooms. The album of the week is a killer sounding new joint from perhaps the biggest name in bluegrass right now.

In this episode, we explore this overdrive pedal which features active EQ at 100Hz and 500Hz for fine-tuning your sound.

This week we take a look at two articles comparing Apple services to Google and Amazon. Which service is right for you? It will be a shocker how they decide! We also spent some time with the smallest thing in subwoofers this week. The SVS 3000 Micro. This small subwoofer packs a big punch. We also read your emails and take a look at the week's news. Apple HomeKit vs Google Assistant If you are trying to decide between Google Home or Apple Home for your smart home system, we've researched and compared the two platforms to help you decide which is the best smart home system for your home. Full article here... Apple Music vs. Amazon Music: Which music service wins? Both Apple Music and Amazon Music have made some big changes. Apple Music has launched both lossless music streaming and spatial audio support, while Amazon has taken the lossless capabilities of its Amazon Music HD tier and added the high-fidelity feature to Amazon Music Unlimited at no extra charge. Full article here... SVS 3000 Micro Subwoofer Review We all know that sound is a huge part of our home theater experience and the subwoofer is a huge part of the sound. What if we told you the subwoofer is actually a Micro part? See what we did there?? SVS has designed and built a subwoofer that is small enough to fit into any space but packs a huge punch! We are talking about the 3000 Micro which is available today for $799. Specifications: Dimensions (including grilles): 10.9” (278mm) H X 11.7” (297mm) W X 10.7” (271mm) D Weight: 22.5lbs (10.2kg) Dual opposing 8-inch active drivers designed acoustically and electrically in parallel 800-watt RMS, 2,500-watt peak Sledge STA-800D amplifier with fully discrete MOSFET output Frequency Response 23Hz to 240Hz +/-3dB When we first saw this subwoofer we thought it would be perfect for use with a computer. Most desktop speakers do not provide enough bass and considering the size of the 3000 Micro we thought it would be a perfect marriage. And it was! The Mico produces a clean, tight bass that makes listening to music on the computer almost as fun as listening on a dedicated music setup. Being less than a foot cubed it can easily fit on, next to, or under any desk.  The rear panel has all the controls you need to tune the subwoofer to your liking including presets so you can easily change the output to match what you are doing. But even better than that, SVS has an app that connects to the 3000 Micro via bluetooth to make configuring and changing the settings simple and easy. This allowed us to really explore and dial in the subwoofer to our liking. All subwoofers going forward need this kind of control! The fit and finish on all SVS products is amazing and the 3000 Micro is no exception. It comes in two colors, Piano Gloss black and Piano Gloss white. Dare we say there is not one athstetics committee member that can complain about the diminutive subwoofer being displayed proudly in any room of the house.  Performance We take a practical approach to measuring subwoofer performance. Can it rattle the walls? Do our spouses yell at us to turn down the bass? Do we feel the bass in our chest? The answer to all three is a resounding yes!! For a test of the pure bass capabilities we used the track Woofer Test by Bad Ass Sound System (BASS). If you try playing this on your phone or normal desktop speakers you get a bunch of dead air because your speakers can not reproduce frequencies that go that low.  The 3000 Micro had no issues whatsoever with this track! You could clearly hear the sweep of frequencies until it went so low that you could only feel it.  And you knew it was working because it was rattling the walls. At one point Ara's wife came into the office from the adjoining room asking what the hell was going on. Fortunately she just laughed and said, “Oh a new toy, have fun but I'm trying to work so try not to break anything!” So nice having a wife who understands!! After the raw sound tests we listened to music on full range speakers that Ara built. We set the amplifier to send everything below 100Hz to the subwoofer.  We listened to our standards, Tin Pan Alley by Stevie Ray Vaughn and California Roll by Snoop Dog. Really it's only the first ten seconds of California Roll. Both were tight and clean. It was hard to believe a small subwoofer like this could produce sound so big. The 3000 Micro exceeded our expectations not only for a subwoofer this size but of subwoofers in general.  Who is the 3000 Micro for? Everyone! Seriously, you can justify buying this subwoofer If you own an apartment and want to add bass to your home theater without taking up a lot of space.  If you live in a house but can't find a good spot for a subwoofer because they are too big, this is a great solution. Not only because it's small, but because it performs like subwoofers twice it's size. You've heard the term “punches above its weight class”? That fully applies here.  If you spend a lot of time working on your computer but want to listen to music you can now focus on small desktop speakers that handle the mid and high frequencies and let the 3000 Micro do the heavy lifting at the low end.  And don't forget gamers, especially if you game on a PC. Conclusion At $799 the SVS 3000 Micro is not the cheapest subwoofer on the market. In fact SVS sells the SB 1000 Pro in a similar finish for $100 less. It too will rattle walls with a low end frequency of 20Hz but it's a few inches bigger. In actuality the SB-1000 in the Black Ash finish may be the best value in a subwoofer costing only $499. But if you want similar performance in a compact package that looks stunning, we recommend spending the additional $200 to buy the 3000 Micro. No compromises required!  

Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.10.22.351379v1?rss=1 Authors: Wong, E. C. Abstract: The brain is thought to represent information in the form of activity in distributed groups of neurons known as attractors, but it is not clear how attractors are formed or used in processing. We show here that in a randomly connected network of simulated spiking neurons, periodic stimulation of neurons with distributed phase offsets, along with standard spike timing dependent plasticity (STDP), efficiently creates distributed attractors. These attractors may have a consistent ordered firing pattern, or become disordered, depending on the conditions. We also show that when two such attractors are stimulated in sequence, the same STDP mechanism can create a directed association between them, forming the basis of an associative network. We find that for an STDP time constant of 20ms, the dependence of the efficiency of attractor creation on the driving frequency has a broad peak centered around 8Hz. Upon restimulation, the attractors self-oscillate, but with an oscillation frequency that is higher than the driving frequency, ranging from 10-100Hz. Copy rights belong to original authors. Visit the link for more info

Recupera Tu Energia En 20 Min | Binaural 100HZ | Power Nap | Frecuencia Arcturiana VIDEO + INFO HERE: https://youtu.be/eLdysWpTkuM Sesión de audio y frecuencias Arcturianas canalizada por Vivi Pedraglio (Musico) en Estudios PDG Musica Diferentes frecuencias, sonidos, varios instrumentos a 432hz y voces de Vivi Pedraglio. TODOS LOS DERECHOS RESERVADOS PDG Musica © --- Send in a voice message: https://anchor.fm/vivipedraglio/message

Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.09.17.301242v1?rss=1 Authors: Poulsen, R. E., Scholz, L. A., Constantin, L., Favre-Bulle, I. A., Vanwalleghem, G., Scott, E. K. Abstract: Most animals have complex auditory systems that identify salient features of the acoustic landscape to direct appropriate responses. In fish, these features include the volume, frequency, complexity, and temporal structure of auditory stimuli transmitted through water. Larval fish have simple brains compared to adults, but swim freely and depend on sophisticated sensory processing for survival. Zebrafish larvae, an important model for studying brain-wide neural networks, have thus far been found to possess a rudimentary auditory system, sensitive to a narrow range of frequencies and without evident sensitivity to auditory features that are salient and ethologically important to adult fish. Here, we have combined a novel method for delivering water-borne sounds, a diverse assembly of acoustic stimuli, and whole-brain calcium imaging to describe the responses of individual auditory neurons across the brains of zebrafish larvae. Our results reveal responses to frequencies ranging from 100Hz to 4kHz, with evidence of frequency discrimination from 100Hz to 2.5kHz. Frequency-selective neurons are located in numerous regions of the brain, and neurons responsive to the same frequency are spatially grouped in some regions. Using functional clustering, we identified categories of neurons that are selective for pure tones of a single frequency, white noise, the sharp onset of auditory stimuli, and stimuli involving a gradual crescendo. These results suggest a more nuanced auditory system than has previously been described in larval fish and provide insights into how a young animals auditory system can both function acutely and serve as the scaffold of a more complex adult system. Copy rights belong to original authors. Visit the link for more info

Bsession 077 Artist: 100Hz | @lee-renacre | @imprintsrecords | UK Genre: Electronic/House Duration: 86:23 Released: 04/08/20 Recorded: London, UK

Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.07.23.217026v1?rss=1 Authors: Socolovsky, G., Shamir, M. Abstract: Rhythmic activity in the gamma band (30-100Hz) has been observed in numerous animal species ranging from insects to humans, and in relation to a wide range of cognitive tasks. Various experimental and theoretical studies have investigated this rhythmic activity. The theoretical efforts have mainly been focused on the neuronal dynamics, under the assumption that network connectivity satisfies certain fine-tuning conditions required to generate gamma oscillations. However, it remains unclear how this fine tuning is achieved. Here we investigated the hypothesis that spike timing dependent plasticity (STDP) can provide the underlying mechanism for tuning synaptic connectivity to generate rhythmic activity in the gamma band. We addressed this question in a modeling study. We examined STDP dynamics in the framework of a network of excitatory and inhibitory neuronal populations that has been suggested to underlie the generation of gamma. Mean field Fokker Planck equations for the synaptic weights dynamics are derived in the limit of slow learning. We drew on this approximation to determine which types of STDP rules drive the system to exhibit gamma oscillations, and demonstrate how the parameters that characterize the plasticity rule govern the rhythmic activity. Finally, we propose a novel mechanism that can ensure the robustness of self-developing processes, in general and for rhythmogenesis in particular. Copy rights belong to original authors. Visit the link for more info

Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.05.21.107680v1?rss=1 Authors: Villalobos, C. A., Basso, M. A. Abstract: In contrast to predictions from the current model of basal ganglia (BG) function, we report here that increasing inhibition from the BG to the superior colliculus (SC) through the substantia nigra (nigra) using in vivo optogenetic activation of GABAergic terminals in mice, produces contralateral orienting movements. Orienting movements resulting from activation of inhibitory nigral terminals are unexpected because decreases and not increases, in nigral activity are generally associated with orienting movements. To determine how orienting movements may result from activation of inhibitory terminals, we performed a series of slice experiments and found that the same optogenetic stimulation of nigral terminals used in vivo, evoked post-inhibitory rebound depolarization and spiking in SC output neurons in vitro. Only high frequency (100Hz) stimulation evoked contralateral movements in vivo and triggered rebound spiking in vitro. The latency of orienting movements relative to the stimulation in vivo was similar to the latency of rebound spiking in vitro. Taken together, our results point toward a novel hypothesis that inhibition from the BG may play an active rather than passive role in the generation of orienting movements in mice. Copy rights belong to original authors. Visit the link for more info

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Speaker and Receiver Buying Guide Each year in December put out seperate buying guides for receivers, speakers, and TVs. This year with the shortened buying window we decided to double up on our guides. Today we take a look at speakers and receivers. The things that make sound!  We have also decided to give you a collective guide rather than our individual picks targeting an entry, mid, and “high” level product. We put high in quotes because in our hobby, high can be really high.  We are practical in our hobby. We don't want to break the bank but we do want a good experience. This list is for like minded people looking to either get into the hobby or move to the next level. Yes you may disagree with our picks. That's OK. Let us know what you would recommend via the comments section or send us an email and we can follow up on the next show. But for now, here is our list of speakers and receivers.  Monoprice Premium 5.1.2 Channel Immersive Home Theater System with Subwoofer  This first pick is really really entry level. It's for the person who wants a 7.1 system but decided that the speakers they really want will break the bank. So instead they buy a great TV, and receiver and just want something that makes sound. The system comes as a 5.1.2 setup with upfiring Atmos speakers built into the left and right speaker. Pretty clever but probably not really that good. You would need to purchase two additional bookshelf speakers to make it 7.1. But even with that the system comes in at $300! The speakers themselves can handle 100 watts and have a frequency response of 70Hz to 20kHz. They have a decent sensitivity rating as well, 88dB. That means you don't need as much power to make sound as most other speakers this size. The subwoofer goes down to 30Hz. Seriously on paper this looks pretty darn good. We have not listened to these speakers before but at $300 we have no problem recommending them to the person who spent most of their budget on the TV and/or receiver.  RSL CG3 7.1 Theater System For our mid level, we jump from a $300 set of speakers to a $1300 set. Speakers are very important and spending $1300 for a really good 7.1 system is really worth it. RSL makes outstanding speakers even though you probably haven't heard of them before.  The company has been around since the 70s back when sound was everything. The founder, Howard Rogers, wanted to create speakers that replicated the sound of a live performance. This passion led him to developing and patenting a compression wave guide speaker. This design uses a series of compressions and expansions that improves bass response and enhances dynamics while improving mid bass detail. We have listened to RSL speakers and were blown away by what they get out of their book shelf system. The CG3 is a great looking set of speakers that are rated to 125 watts and have a frequency response of 100Hz to 20kHz, the center channel is 85Hz to 20kHz. Their sensitivity rating is 87db for the satellites and 89 for the center channel. The subwoofer is reasonably sized (H: 16” W: 15” D: 16 3/4”) with a 300 watt amplifier that has a frequency response of 24-200 Hz. The system really has no risk for trying either. It comes with free shipping, free 30 day trial, free return shipping, and no restocking fees.  Prime Pinnacle Surround System We have been big fans of SVS since we reviewed their SB-1000 subwoofer many years ago. This year they introduced their Prime Pinnacle line of speakers that take it to another level. These are not cheap but won't break the bank either. For a little over $3100 you can have a 7.1 setup that compares to systems that cost more than twice as much! These are beautiful floor standing speakers with satellites for the surround. If you opt for the piano black finish it will cost about $600 more. For this system we spec'd out the PB-2000 for the subwoofer which should give you plenty of boom! With a rated bandwidth and power rating  of 29 Hz-25 kHz and 300 watts respectively, the Prime Pinnacle speakers are the most capable speakers on our list.These speakers perfect for those who have a dedicated listening/viewing room.  The subwoofer has a 12-inch driver and 500 watts RMS, 1,100 watts peak power that goes way down to 17Hz. You will feel this thing! SVS has a 45 day trial period with free shipping and returns and comes with a five year unconditional warranty Sony STR-DN1080 7.2ch Home Theater AV Receiver  If we had our choice we would spend the money on the RSL or SVS speakers and go cheap on the receiver until we were able to upgrade down the road. Our components have been swapped out so many times but I speakers seem to last for years. So if you allocated most of your budget to the speakers you are in need of a decent receiver  that is still pretty good. For that we have the Sony STR-DN1080 that will set you back about $450.   This receiver can handle all the new buzzwords: 4K and HDR passthrough, HDCP 2.2, Dolby Atmos, Airplay, Chromcast, Auto Calibration, and 165W per channel. Just a good basic receiver. Not much else to say. Actually in this price range you can pretty much go with any Yamaha, Denon, or Pioneer receiver and get the same performance. We had to pick one so we went with the Sony this year.   Pioneer VSX-LX503 9.2 Channel 4k UltraHD Network A/V Receiver Black Pioneer Elites were more “Elite” back in the day but they are still very good. Coming in at our mid-level receiver the VSX-LX503 still has some chops for a $550 receiver. The amazing thing to us is that we spent a thousand dollars for a Pioneer Elite back in 2008 that had nowhere near the capability.  Today for $550 you get a 9.2 channel receiver that has three zones, 120 watts a channel, passes through HDR10, HLG (Hybrid Log-Gamma), and Dolby Vision signals. If you have a Sonos setup in your home this receiver will fit right in with support. It also supports Airplay, DTS Play-Fi and Chromcast for whole home audio lovers.  Onkyo TX-RZ840 9.2 - Channel Network A/V Receiver Many may question our high end selection. But from a feature point of view the RZ840 is loaded. Yes there are other receivers that would fit more the “High End” moniker but like we said we are practical. Spend your money on speakers. This receiver will do everything you want and only set you back $750 at retail.  Just look at the features! THX® Certified Select™ theater-reference sound - THX Certified Select guarantees the same reference volume level of a commercial theater in rooms where the viewing position is about 10–12 ft. from the screen.  Power - 220 W (4 Ohms, Front) 130 W (8 Ohms, Front) All Channels Dynamic Audio Amplification -  DAA features a custom High-Current Low-Noise Power Transformer, customized capacitors, and discrete amp output stages. Unique topology prevents phase-shift while high current improves speaker control for true dynamic speed.    4K HDR -  HDR (High Dynamic Range) video including HDR10, HLG, Dolby Vision, and BT.2020. The 4:4:4 color space is also supported. Six HDMI inputs, ARC-ready MAIN OUT, and SUB OUT pass 4K/60p and HDR video from player to compatible TV and projector and all terminals are HDCP 2.2 compliant. Dolby Atmos and DTS:X SMART AV Receiver - Access streaming content from Amazon Music, Pandora®*, Spotify, TIDAL, Deezer, and TuneIn and share sound as part of a multi-room system via Works with Sonos, AirPlay 2, DTS Play-Fi®, and FlareConnect. IMAX Enhanced  - DTS:X sound technology optimized for the IMAX® signature experience, reproducing the full dynamic range of IMAX theatrical sound-mixes available with digitally re-mastered IMAX Enhanced content.  Chromecast built-in with the Google Assistant      

Back this week with a huge contrast into lots of funky elements, classic vocal cuts and plenty of bongo drums. #035 is a story of soul to deep and gritty baseline's. Side A features the track of the week remixed by Dr. Packer as well as some iconic Nu disco hits mixed with warm jackin beats. Side B continues our story keeping the funky feel while all the more getting darker and utilising more space below 100Hz. Underground is an Understatement.Enjoy this episode, thanks for tuning in this week and if you are new, Welcome!! :DFind me at https://404missing.linkPeace!

Podcast 10 of the Mass Mix series with @lee-renacre aka 100Hz Stepping away from the live show, this hour long blend provides an insight into the sounds of 100Hz. A mix of old, new and future projects make for an enticing journey from a true pioneer of electronic music.

Dear friends, A true talent joins the Oversize family for our 7th podcast: Lee Renacre is a multitalented artist who doesn't bound himself in just one genre. We can feel it in his many releases on Modugroove, Veniceberg Records, Slow Life, Bosconi and Imprints. His sound is unique and he'll be part of our line up very soon. Enjoy!

En el capítulo de hoy vamos a hablar del motor paso a paso con Arduino. Hemos recibido varios e-mails, sobre los motores paso a paso y en especial uno, donde nos pedía consejo para montar un proyecto con Arduino. Este proyecto consta de 10 motores que permita giros de 180º muy precisos. Además requiere de parada de motores durante minutos. Por eso nuestra decisión ha sido crear este capítulo y hablar sobre estos componentes.Si tienes alguna duda o sugerencia, nos la puedes hacer llegar a través del formulario de contacto, por Twitter o Facebook. También tenemos una lista de distribución a la que te puedes suscribir, te mantendremos informado sobre todas las novedades de la web.Existen diferentes tipos de motores eléctricos, los motores de corriente continua (motores DC), los servomotores y los motores paso a paso. Hoy te vamos a hablar de estos últimos.Para controlar un motor paso a paso necesitamos un sistema que nos permita mover el motor. Este sistema tiene 3 elementos básicos al que le podemos añadir un elemento extra, la interfaz de usuario.sistema-motor-paso-a-pasoInterfaz de usuario: es la puerta de entrada al motor paso a paso. El usuario maneja el motor a través de una aplicación ya sea de escritorio, móvil, un mando de radiocontrol, etc... Envía los mensajes de alto nivel al controlador.Controlador (Arduino): suele ser un microcontrolador, recibe los comandos de alto nivel de la interfaz de usuario y los convierte en pulsos para poder mover el motor. Estos pulsos se envían por las salidas digitales.Driver o amplificador: convierte los pulsos del controlador (Arduino) en la energía necesaria para excitar las bobinas del motor a través de etapas de potencia con transistores.Motor: dispositivo electromagnético que convierte los impulsos digitales en la rotación del eje mecánico. Un ejemplo sería el 28BYJ-48 de la marca Rohs.Los motores paso a paso se llaman de diferentes formas, los podemos encontrar como motores steppers, step motor o motores PaP (abreviatura de paso a paso). Las características principales de este tipo de motores son que se pueden mantener en una posición fija, se pueden girar en amos sentidos y se puede controlar la velocidad de giro a través de los pasos.Un motor eléctrico, ya sea paso a paso o de otro tipo, tiene dos elementos clave, el estator, pieza fija que rodea a la móvil y donde está el bobinado que se excita con corriente y el rotor que es la pieza móvil que vamos a hacer girar mediante la aplicación de un campo magnético.stepper-motorPara comprender cómo funciona un motor tenemos que tener claro dos definiciones, par motor y paso.El par motor, también conocido como torque o momento de fuerza, es la fuerza que se ejerce en el eje del motor cuando este gira. Un ejemplo que nos permite ver este concepto más claro es la bicicleta. Cuando das pedales, la fuerza que ejerces se transmite al eje del plato y esto permite que la bicicleta avance. Con los motores ocurre lo mismo, cuando gira el rotor, esto ejerce una fuerza en el eje que te permite mover cosas.El paso de un motor es el avance de giro, por eso se llama paso a paso, porque se mueven giro a giro de motor. El paso dependerá del tipo de motor y sus características.Dentro de todos los parámetros que encontramos en la hoja de características técnicas de un motor, debemos de centrarnos en 3.Voltaje o tensión eléctrica de trabajo.En algunos motores este parámetro viene impreso en la carcasa. Es un dato a tener en cuenta, si aplicamos más tensión de la indicada corremos el riesgo de dañar el motor o acortar su vida útil.Resistencia eléctricaIndica la resistencia de los bobinados y determina la corriente que consume el motor. Este parámetro afecta a la curva del torque o par motor y a la velocidad máxima de operación.Grados por pasoEs el número de grados que gira en cada paso. Es un factor importante y dependerá del uso que queramos dar al motor.Existen 3 tipos básicos de motores que se diferencian en cómo están construidos el rotor y el estator.Los motores de reductancia variable tienen un rotor dentado de hierro dulce y el estator también es dentado y tiene el bobinado que es que se excita con la corriente eléctrica. El mayor inconveniente de este tipo de motores es que en condiciones de reposo el roto queda libre y no tenemos control de donde parará debido a la inercia al moverse.Los motores de imán permanente, al contrario que los de reductancia variable, tienen un rotor que es un imán permanente y el estator es un bobinado donde se aplica la corriente. Son los más utilizados en impresoras, disqueteras, etc...Los motores híbridos son una mezcla entre los anteriores, el rotor es un imán permanente dentado y el estator es el bobinado. Suelen tener mayor precisión y por eso se usa mucho en el sector industrial.Dentro de los motores de imán permanente e híbridos, existen dos tipos según el número de bobinas que tengan, los biporales y los unipolares.BipolaresEstos motores solo tienen dos bobinas y por lo tanto tienen mejor relación entro torque y tamaño/peso. Necesitan que se aplique corriente a las dos bobinas en los dos sentidos y de ahí viene la dificultad, sobre todo en la programación.UnipolaresEstos motores tienen 2 bobinas en cada eje (dos bobinas con punto medio). Son muy fáciles de controlar y los más comunes en el ámbito doméstico.Los unipolares pueden moverse de 3 formas diferentes, según las bobinas que se exciten.Movimiento normal (par máximo)Se excitan dos bobinas a la vez, consiguiendo el máximo torque o par, una buena velocidad y un alto consumo. Es el movimiento recomendado por los fabricantes.Movimiento por ola o paso completo (par menor)En este caso solo se excita una bobina a la vez, por lo tanto conseguimos un torque o par menor pero el consumo es más bajo.Movimiento de medio pasoMoviendo el motor con medios pasos se consigue que sea más suave y lento, alcanzando así más precisión. El consumo y el par está entre medias de los otros dos movimientos.Ahora vamos a analizar un motor muy común que viene en diferentes kits de Arduino, pero también lo puedes comprar por separado, su coste es de unos 3€.Lo primero que debemos hacer es mirar las características técnicas del motor. A continuación te dejamos dos enlaces.Hoja de características técnicas 1Hoja de características técnicas 2Lo más importante que tenemos que saber te lo detallamos a continuación:Motor paso a paso con 5 cables (unipolar 4 bobinas)Voltaje de funcionamiento 5V o 12VViene con un circuito integrado4 LEDs que indican cuando se excita una bobina4 resistencias para proteger los LEDsChip ULN2003 que contiene 3 transistores Darlington4 entradas para el controlador, por donde entran los pulsos.Jumpers para seleccionar el voltaje de funcionamiento (5V o 12V)Hay que puentear el voltaje que no se utilizaCada paso avanza 5,625ºCaja reductora mediante engranajes 1/64Se consigue un paso de 5,625/64 = 0,088ºResistencia del bobinado de 50 ΩTorque de 34 Newton Metro más o menos 35 gramos por cmFrecuencia máxima 100Hz que equivale a un delay de 10 msPara programar este motor lo podemos hacer de 2 maneras diferentes, manual o a través de la librería stepper que viene incluida en el entorno de desarrollo oficial del Arduino. Puedes ver este artículo donde explicamos los dos métodos.Recurso del díaEverythingEverything es un motor de búsqueda de código abierto que localiza los archivos y carpetas por nombre al instante. Es una aplicación para Windows y, a diferencia de la herramienta nativa de este sistema operativo, muestra todos los archivos y carpetas de tu ordenador a través de filtros. La mayor diferencia radica en el tiempo, tarda 1 segundo en indexar 70.000 archivos y aproximadamente 1 minuto en indexar 1.000.000 de archivos, además consume muy pocos recursos del sistema. Su mayor inconveniente es que no busca en el contenido de los archivos, solo busca por su nombre.Muchas gracias a todos por los comentarios y valoraciones que nos hacéis en iVoox, iTunes y en Spreaker, nos dan mucho ánimo para seguir con este proyecto.

This week I’m sharing my pre-show checklist: 10 Steps to Recording Great Audio. This show is going to be an introduction to recording an audio track for your podcast. As I was planning today’s show, I was thinking about all the steps I take before I hit record. There’s a lot of preparation that goes into recording a show and making sure everything goes smoothly. I came up with a list of 10 things to do to get a great sounding recording. Key Takeaways: Raw audio recordings can be fairly large, so make sure you have plenty of space on your hard drive before you start a long recording. Always wear headphones when recording. Notifications will distract your listeners from your content and your message. Turn them off. Don’t scramble to set everything up last minute. Be prepared in advance. 1. Find or create a quiet recording environment. Turn off fans, AC, heaters, etc. Try to record in a room with minimal echo. You can also use couch cushion or pillows to reduce sound reflections. 2. Make sure your mic is plugged in and everything is switched on. If you are using a XLR mic and interface, make sure phantom power (or 48v) is turned on if you’re using a condenser mic, or turned off if you’re using a dynamic mic. 3. If you’re using a laptop, make sure you’re plugged in and you have enough disk space to record. This morning, I started setting up for this podcast, and I wondered how much disk space I had left on my hard drive. It had been a week or two since I checked, and I had been working on a bunch of video and podcast project. I’m glad I checked, because I only had 4gb of free space left on my 250gb hard drive. Raw audio recordings are fairly large, so make sure you have plenty of space on your hard drive before you start a long recording. 4. Wear headphones while you’re recording. If you don’t wear headphones, any audio coming from your speakers will be picked up by your microphone which cause an echo on your track that can’t be removed in post. You should also be monitoring yourself while recording so you can hear what you sound like, which will help with mic technique. Always wear headphones when recording. 5. Set your phone and computer notifications to silent. Notifications will distract your listeners from your content and your message. Turn them off. 6. Open your recording software, choose mic input, arm track for recording (if necessary). If you’re going to record with Garageband, check to make sure that there aren’t any plugins enabled. Certain templates have echo and reverb plugins turned on by default, so make sure to disable those before you record. To check, open smart controls (B), hit the little "i" button just left of Master, and scroll down till you see plugins. This is also where you can set input gain levels if your mic doesn’t have a gain knob. 7. Check input gain levels and adjust them to make sure you're getting the best sound possible. Set the input gain levels so that the loudest peaks of your comfortable speaking voice don’t go higher than -12db on the input gain meter. For most recording programs or audio meters, this is where green turns into yellow, or about 80% of maximum. The red area of a meter is the danger zone. If your gain is hitting those red areas or getting close to 0, you need to turn down your gain knob or recording volume slider. 8. Make a test recording to see how you sound and check for any problems or audio issues. D Do this before it’s time to record or stream. Don’t scramble to set everything up last minute. Be prepared in advance. 9. Have an outline prepared for your show. Bullet points are fine, but decide how you are going to start and end your show, and what talking points you're going to cover before you begin. 10. Don't forget to hit record! Choose to record uncompressed .wav or .aiff files, or the highest quality option available (24bit audio, 44,100Hz is fine). After recording, you should export your recording as an uncompressed .wav or .aiff if you’re going to do any additional editing or adding music. These raw recordings are just for editing – after you edit a podcast, the final file should be exported as an MP3 file (either 64, 96, or 128kbps). Double Enders and Backup Recordings If you are going to be doing a podcast with a co-host, or interviewing a guest, I recommend having each person on the call record an audio file on their end, and then putting the individual audio files together later in an editing program. This is known as a double ended. You can also record the audio from the Skype call using a program like Ecamm Call Recorder or Audio Hijack to have as a backup, in case anything goes wrong with one of the local recordings. You might also be interested in checking out a web app like Squadcast.fm that will record multiple people at the same time. If you do use Skype, it is a good idea to record the Skype audio to have as a backup, but I don’t recommend using Skype recordings for your podcast. Skype often introduces artifacts and will drop parts of the audio, but a Skype recording can be a lifesaver if something goes wrong with the local recordings. People make mistakes, sometimes choosing the wrong mic source or forgetting to hit record. It’s nice to have the peace of mind that a backup gives you. If you are going to be talking to a co-host or guest over stripe, or streaming live, make sure to turn off any cloud or backup services (like Dropbox or Google Drive) that might hog your internet bandwidth. You’ll get a higher quality connection if you do. Cool Stuff to Check Out: Recommended Gear: https://kit.com/thepodcastdude Podcast: https://thepodcastdude.simplecast.com Twitter: https://twitter.com/thepodcastdude Youtube: https://www.youtube.com/c/thepodcastdude Successful Podcasting: http://successfulpodcasting.com Simplecast Blog: http://blog.simplecast.com/

for free ep www.wiserap.bandcamp.com Alchemy 7.83Hz Paul Rafis Known As MC WiseRap drops early the Alchemy 7.83HZ Ep the meaning behind the album name is Alchemy 7.83HZ because that's the frequency of the earths magnetic field in 1980s that was the same as our alpha brain wave but since technology and wars and all the damage to the earths atmosphere the frequency has raised to almost double 2014 thats why time seems to go so fast or why is it your tv is 100HZ when your brain needs 7.83HZ or ya radio or car or satelite Tv or mobile? waves and frequency's are all around us they effect us even our mobiles are a big danger we need to wake up as a race now so the next generation can have a chance of life and a better way then one big computer created fictional reality of who's best. we need to value humans on efforts not who can consume the most and earn the most money from the lands that birthed us all. Never forget you are humans your brain and soul is connected to the earth's magnetic field you are all born natural and are part of a message. thanks for listening to my music and reading God Bless its free for the people the full album will be out late january 2015 via www.wiserap.net also stay updated with twitter @WiseRap

1st in the Series of Live & Studio DJ mixes from Formal Artists and Friends.

Part 1 in the series of inspirations that keep Formal Worldwide artists ticking over. Enjoy.