Tom, I'm very grateful for this software thread. I liked the HemiSync principle, but the tapes were either directive or the freeform ones had non-stop music that got in the way of this musician. I always wondered why you couldn't just have plain vanilla beats. So now I've tried gnaural, and experienced the bliss of 4hz without music, I can look forward to using binaural beats more often.
SBaGen is another freeware binaural generator, but without a studio-type interface. I haven't played with it, but it comes with lots of sample files that you can edit to make your own tracks. They include the Monroe Focus levels 3 to 27, and Holosync frequencies. Some interesting text files analyse the samples - and would let you recreate them in another program. For instance:
Quote:
Focus Levels/Frequencies
F3 59[1.2]-110[1.3], 288[3.7]
F10 100[1.5], 200[4.0], 250[4.0], 300[4.0]
F12 100[1.5], 200[4.0], 250[4.0], 300[4.0], 400[10.0],
500[10.1], 600[4.8]
F15 100[1.5], 200[4.0], 250[4.0], 300[4.0], 500[7.05],
630[7.1], 750[7.0]
F21 200[4.0], 250[4.0], 300[4.0], 600[16.2], 750[15.9],
900[16.2]
F22 Same as F21
F23 400[3.9], 503[4.0], 600[4.0], 750[3.9], 900[4.0]
F24 50[0.75], 400[3.9], 503[4.0], 600[4.0], 750[4.0],
900[4.0]
F25 503[4.0], 600[4.0], 750[4.0], 900[4.0]
F26 400[3.9], 503[4.2], 600[4.0], 750[4.0], 900[4.0]
F27 Same as F26
Example: The notation 503[4.2] should be understood to
represent a beat frequency of 4.2 Hz between two carriers
equally separated from 503 Hz (i.e., 500.9 and 505.1 Hz).
Amplitudes are generally maintained about 20 dB above
background 1/f (pink) noise and/or surf.
The Monroe Institute equipment used to generate the tones is/was
completely analog so precise control of frequency and phase was not
possible.