binaural audio problems

[kenkojuku]

Hello there,

I've been using Audacity for the past year without any problems...great program. I began creating binaural audio tracts recently with apparent success. However, I discovered that the resulting audio was not creating a true beat frequency. For example, my latest attempt was to have 70 Hz on the L channel and 72 Hz on the R which would cause my brain to also hear a 2 Hz beat frequency .

However, when I listened to the final stereo tract (WAV), instead of hearing a pure 70 Hz tone out of the L earphone and 72 Hz out of the other, I was also getting the beat frequency of 2 Hz out of each. I'm certain of having done everything correctly...opening a stereo tract>binaural audio>inputting the exact freq. on each channel, etc.,...but in the end, hearing the 2 Hz beat frequency come from each side of earphones when listening to the results. Have spent hours trying everything possible...

Any suggestions?!

Best regards, John

[steve]

opening a stereo tract>binaural audio>inputting the exact freq. on each channel, etc.

Are you using a "binaural" plug-in?
If so, which one, and where did you get it from?

[kenkojuku]

I'm using "binaural.ny", "bitone2.ny", "binaural tones with surf2...; I believe I've tried every plug-in suggested on the forum...regardless, I still hear the beat freq when listening to each side separately.

John

[kenkojuku]

Hello Steve,

Would you try running a one minute sample using the binaural surf plug-in or any one of the others. Set frequency R at 70 Hz with beat freq of 2 Hz. Sample rate at 32 bit. When done, listen to it and see if you're also able to hear the beat freq in each earpiece separately.
Thanks.

John

[steve]

I'm getting one steady tone on one side and another steady tone on the other.

If you select the "Nyquist Prompt" effect from the Effects menu, you can create the exact effect of a 70 Hz tone on the left and a 72 Hz tone on the right by copy and pasting this code into the Nyquist Prompt box:

Code: Select all

(setq len (* 60 *sound-srate*))
(abs-env
(vector
(sustain-abs 60 (hzosc 70))
(sustain-abs 60 (hzosc 72))))

If you're still getting the beat frequency from just one channel, then it's something with your sound system that is causing sound from one channel to leak across to the other.

[kenkojuku]

Steve,
Turns out the earphone connection was giving me the cross over feed...when put on desk top speakers, it's fine.
Thanks for you help.
John

[kozikowski]

It's not unusual for us to tell people to dig into the Windows setup panels and turn everything fancy off. No Theater Effects and no Conferencing Services. Stop helping.

Koz