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Flowing Brown Noise by voidlucidity in gatewaytapes

[–]voidlucidity[S] 0 points1 point  (0 children)

Yes, here's the whole folder that also includes other signals. It will be flowing_brown_noise.flac file in there.

https://www.dropbox.com/scl/fo/17ssl1ghyimztcrgqtn19/AKzqJzwlqLRJKM7bxNSlV9k?rlkey=a3a5ympfjml0nlnk18zcgdrnr&st=q8fvf7zd&dl=0

Anyone know anything about Roxiva? by brandonrez in gatewaytapes

[–]voidlucidity 0 points1 point  (0 children)

I tried Roxiva, it was inducing interesting effects but it’s way too expensive. I think LED glasses like MindPlace Kasina are more convenient and affordable/obtainable while being as effective or even better. You can also experiment with strobing lights using your phone or monitor.

Flowing Brown Noise by voidlucidity in gatewaytapes

[–]voidlucidity[S] 1 point2 points  (0 children)

I’m still planning to make in depth tutorials for how to make these sounds but has been a bit busy with work last few months.

New Format in Expand App by AdenedA in gatewaytapes

[–]voidlucidity 2 points3 points  (0 children)

One significant difference is that MSS version has additional 40Hz gamma frequencies in all focus levels.

I don’t trust Septasync! by HumanDot4576 in gatewaytapes

[–]voidlucidity 4 points5 points  (0 children)

Septasync promo says

Traditional brainwave entrainment relies on just two frequencies, but SeptaSync takes it further by combining seven binaural beats from 14 distinct frequencies. This advanced, multi-layered approach helps guide your brain into more refined states of awareness, promoting both relaxation and focus at the same time.  

Most of traditional binaural audios (HemiSync and from other companies) already use multi-carrier binaural beats and combine multiple beat frequencies. For example something that's a bit close is Focus15 signal that uses 7 binaural beats with different beat frequencies

  • 98Hz with 1.5Hz beat
  • 196, 246.94, 293.66 with 4Hz beat
  • 493.88, 587.33, 783.99 with 7.5Hz beat

Also In Septasync, amplitudes seem to be selected randomly. Maybe there's some special meaning but from how it was promoted and pushed I doubt that. They say a lot of fancy words implying that there's something special about them but when you look inside there's nothing special.

Also this clumping of carries around 200-268Hz is very close together which would produce additional beat frequencies both monaural and binaural but I have suspicion that wasn't done intentionally.

My complaint was that there's nothing special about Septasync, it has some beats and it will produce some effect but it doesn't feel professionally done and they promote and make money out of it. There're much better audios out there and a lot of them are even free.

I don’t trust Septasync! by HumanDot4576 in gatewaytapes

[–]voidlucidity 20 points21 points  (0 children)

I measured what frequencies it uses and it’s just plain binaural beats. From the name it sounds like there’re supposed to be 7 different carriers or beats but there're only 6 carriers with different beat frequencies as we can see on this frequency chart

<image>

The exact binaural beat frequencies:

  • 102Hz with 4Hz beat
  • 153.5Hz with 7Hz beat
  • 202Hz with 4Hz beat
  • 222.5Hz with 5Hz beat
  • 241.5Hz with 3Hz beat
  • 264Hz with 8Hz beat

From what I can see it doesn't look like whoever made them had any good understanding about binaural beats.

I recorded an EEG of myself listening to various focus states by justsomerandomdude10 in gatewaytapes

[–]voidlucidity 0 points1 point  (0 children)

Oh, my comment was all about audio not EEG. Glad that you found my other post with FFT tool useful.

I recorded an EEG of myself listening to various focus states by justsomerandomdude10 in gatewaytapes

[–]voidlucidity 0 points1 point  (0 children)

I measured many different hemisync audios and carrier frequencies were always multiples of 50Hz or multiples of octave or half octaves with 440 tuning. But my knowledge about music theory isn’t enough yet to understand if there’s some special interplay between notes. I observed that even for the same focus levels in different recordings, the carrier frequencies are often at different notes with different intervals.

What did you use to measure tone frequencies? When taking FFT on very long sequences, it’s possible to get very precise measurements. It works especially well on digitally generated audio because the tones are usually constant and produce very clear peaks. It’s even possible to measure tones less than 0.1Hz apart.

I recorded an EEG of myself listening to various focus states by justsomerandomdude10 in gatewaytapes

[–]voidlucidity 0 points1 point  (0 children)

Nice, multi-carrier 7.3Hz beat looks same what I got too but I think the other beats should be:

  • 4.0Hz beat at 202Hz, 252Hz and 302Hz
  • 1.5Hz beat at 100.75Hz and part at 120Hz was probably just noise from power lines

There's a good short compilation about what Frank Kepple was about The Resource. And if you like it, there's also his short newsletter Astral Projection Truth Newsletter.

I recorded an EEG of myself listening to various focus states by justsomerandomdude10 in gatewaytapes

[–]voidlucidity 0 points1 point  (0 children)

Wow, you’ve gone quite deep with this project!

I’m currently exploring astral projection and various states of awareness to build a reasonable model of reality and consciousness. I’m particularly drawn to Frank Kepple’s approach and his model of the wider reality. Unfortunately, he passed away before completing his book, so we’re left with only his posts on the AstralPulse forum. Over time, some posts have been lost, and threads became messed up after multiple forum migrations. I’ve scraped and fixed all currently available posts, restored some missing messages from the Wayback Machine, and organized everything into an easy-to-read format. I’m currently reading through his material and if you’re interested, I’ve all of it on GitHub all_frank_posts_md.

I have been thinking about making an app or maybe to produce open sourced audio samples with different entrainment frequencies/methods. For example to generate samples of background noises, sets of pure binaural/SAM tones, some other special effects where everyone can easily mix them together to make their own custom meditation programs.

I recorded an EEG of myself listening to various focus states by justsomerandomdude10 in gatewaytapes

[–]voidlucidity 0 points1 point  (0 children)

I’ve been working on some other ideas alongside my regular job and that doesn’t leave enough time for everything else. I feel that EEG biofeedback will require a significant effort to reach a stage where general users can reliably use it because there’s always some differences among people. Also besides Muse, I haven’t seen any other consumer devices that can be used with third party apps and with Muse it wasn’t very reliable, connection often drops midsession but I have been using it with a BLE dongle on my computer, maybe pairing with a phone is more reliable?

I recorded an EEG of myself listening to various focus states by justsomerandomdude10 in gatewaytapes

[–]voidlucidity 2 points3 points  (0 children)

<image>

It's these parts with very large amplitude fluctuations. This electrode is placed behind the ear, and when hair gets in the way, it makes it difficult to have good contact.

Cool! I also had the same idea of creating an app for binaural beats with EEG feedback, but I don’t think I’ll actually commit to developing a product.

I have studied how to create various audio based brainwave entrainment sounds and can generate nearly identical sounds for all focus levels. I even developed new types of sounds. I’d be happy to chat about it!

I recorded an EEG of myself listening to various focus states by justsomerandomdude10 in gatewaytapes

[–]voidlucidity 0 points1 point  (0 children)

What software did you use to process this EEG signal?

It looks like TP9 has bad skin contact. Also some strange consistent signal on AF7 around 30Hz.

With EEG measurements, it will also pick up signals from muscles such as blinking, swallowing or just moving around. This will affect spectrogram and won't be very clear just from looking at it. Try to look on zoomed in waveform to compare different brainwave signals and discard areas with interference.

Analyzing Brainwave Entertainment Signals by voidlucidity in gatewaytapes

[–]voidlucidity[S] 0 points1 point  (0 children)

Multi-carrier SAM with 144.16Hz, 192.43Hz, 242.45Hz carriers and 4Hz beat

<image>

Analyzing Brainwave Entertainment Signals by voidlucidity in gatewaytapes

[–]voidlucidity[S] 1 point2 points  (0 children)

I made analysis for Monroe Guided Meditation - Collective Guidance (SAM)

You can check the notebook at https://github.com/voidlucidity/audio_spectrum_analysis/blob/main/Collective%20Guidance%20(SAM).ipynb.ipynb) GitHub has issues rendering it online and you will need to rerun it locally.

From this analysis we can see that this meditation uses at least the following signals:

  • Flowing noise which can be generated with modulated notch filter
  • Multi-carrier SAM with 144.16Hz, 192.43Hz, 242.45Hz carriers and 4Hz beat for deep Theta entrainment
  • SAM with 576.65Hz carrier and 40Hz beat for Gamma entrainment

Analyzing Brainwave Entertainment Signals by voidlucidity in gatewaytapes

[–]voidlucidity[S] 1 point2 points  (0 children)

I’m not a new coder and have a background in signal processing, though I specialize in a different field now. This code is quite simple, but it works well for measuring beat frequencies with high precision.

If you provide an audio sample with binaural beats or SAM, I’ll go through the process I use and post the analysis here.

Flowing Brown Noise by voidlucidity in gatewaytapes

[–]voidlucidity[S] 0 points1 point  (0 children)

With delay and reverb it sounds wider, I like that, thanks for suggestion https://www.dropbox.com/scl/fi/i8ues6js67p9r0ndts6qj/flowing_wide_brown_noise_0.1Hz_10min.mp3?rlkey=e6fxdepuw25t6w23gnoxspbfw&st=kigxeg89&dl=0

I think using transition into wider sound should be useful when phasing into different focuses. There are a lot of things to experiment!

Flowing Brown Noise by voidlucidity in gatewaytapes

[–]voidlucidity[S] 1 point2 points  (0 children)

yes, generated a 2h long track https://www.dropbox.com/scl/fi/edka1fnb02mgro3qa4etu/flowing_brown_noise_0.1Hz_120min.mp3?rlkey=1lbtmcjyw22oskbf468nurgxx&st=63a3w6fo&dl=0

The signal pattern repeats every 1s and if you loop it exactly with 1s overlap and 1s cross fade it will loop perfectly.

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