What is the best way to describe the octaves in the biofeedback?

1. I'm certainly no expert, from a music standpoint an octave is the same note but an octave (8 notes, or 12 half steps) higher. But there are 100 cents between each half step, and 12 half steps in an octave, plus the cents don't work out perfectly, kind of like our years aren't exactly 365 days (hence leap year).

So I don't think it's physical to emotional difference, it's just going to include the same frequencies on a higher octave so you will get more "hits".

2. If you take a frequency, say 440 Hz, then double it, you get 880 Hz. All the frequencies between are in the octave. In music, you have the 8 notes: do re mi fa so la ti do. The two do's span one octave.

3. Octave harmonics are created by repeated doubling or halving of any frequency. So 2, 4, 8, 16, 32, 64, 128, 256, and 512 are all octave multipliers (or divisors). There are other excellent types of the multiplier - decade, Fibonacci, and 8x.

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