@sonidojamon

2 years ago

OK. As I'm an audio engineer, I've done some research and this is how it works: Use two pure tone (sine) waves (below 500hz recommended), each on one side (L & R). Then make sure there's a 40 hz gap between the two. EG: EG. -> L=100hz + R=140hz (or 60 hz) Make sure your headphones (there's no proper binaural effect with speakers, period) can reproduce the lowest frequency you'll be using (all headphone specifications include this). Now here's the trick: Many streaming audio tracks (spotify, etc) and youtube videos use higher frequencies than needed, just to make sure they can be reproduced in shitty headphones/speakers. But I have found out that the lower frequencies you use, the more pleasing the sound is, and it works as good. In summary: Make your lowest frequency around +30 hz the lowest frequency your headphones can reproduce (a safe margin). EG. My Audio Technica M50X can go as low as 15hz, so I set the first sine wave to 45hz on one side and 85hz on the other. Waaaaaaay more pleasing than anything above 150 hz!!! Aaaaaaand this is how you get rid of the unnerving "headache-inducer" sensation most "ready to play" pure 40z beats like this one give you. You can do it in any DAW (Garageband, Logic, Studio One, Cubase, Pro Tools, etc) Most of these programs have the easier option of a "tone generator" plug-in (like Studio One). You create 2 mono tracks and pan each one hard left and hard right. Load a "tone generator" instance on each and choose the two different frequencies you want. Then you just need to bounce/mixdown to an audio file (whatever length you want) and you're set! A couple of tips: - The highest frequency of the 2 will always sound ( or more exactly "will be perceived") louder (despite the VU meters telling otherwise) so it is usually recommended to lower the volume to that one "by ear" till you feel kind of the same "weight" on both sides. I usually set the higher frequency between -12 to -18 dBs quieter (depending on the 40hz range of the spectrum I´ll be using) - I like two switch sides of frequencies every few minutes (usually 5) so the total load over time gets more balanced and less "charging" to each ear. this is easily done with pan automation on tracks. Just like the audio files I bounce start and with a gentle 5-second fade in/out slope, the pan swap crossfade gently during 2 seconds (Use a -6dB center pan law to avoid volume jumps). I did some more research, and a few more tests. I managed to find a 40hz interval that landed on two nearly exact "music" notes/frequencies, which I thought would be more useful (and pleasing) to musicians and their "internal tunning). That is: I created a binaural beat with two notes/frequencies you can play on most instruments: 58.3 Hz (A# 1) 98 Hz (G 2) That's a 39.7 Hz gap (between the 38-42 Hz range that's supposed to work) Here's the link to a google drive folder where you can find: - A 30 min wav (24 bits 48 kHz) and mp3 (also 24 bit 48 kHz in 320 kbps quality) - Studio One session with automation that anyone can open and tweak to their taste! https://drive.google.com/drive/folders/1XGYxw2l8IjNqAHIeDh5JOzG2q8xaz8L3?usp=sharing If your DAW of choice doesn't have a "tone Generator" plugin, you can of course use any synth virtual instrument to generate a sine wave as well, but it's a little more complicated. I'd be glad to generate custom beats for those who don't know how to use a DAW. Enjoy!

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