[Avid-L2] OT: Audio Question

OK... who wants to help a dumb old guy?
Yes, that'd be me.

So... I'm looking for an English translation of the definition below,
as well as a method to demonstrate it.

"Roll-Off:
A decrease in audio gain in relation to octaves.
For every octave decrease in frequency there is a difference of -12dB
in audio gain."

I thought I had deciphered this and did the following:

1- Created 2 pieces of tone. One was 300Hz and the other was 600Hz,
both at -20dB.
2- I put a Pitch Shift plug-in on the 600Hz clip and lowered it 1
octave (verified the shift through comparison).
3- Based on the definition above, my hypothesis was that the altered
clip would now play back at -32dB. It didn't. It played back at -20dB.

Any takers?

TIA,

B

Benjamin Hershleder
http://ContactBen.com
http://Hershleder.com

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