From: Igor Chernenko <igor.chernenko@gm...>  20090104 22:34:17

Nonlinear Compressor/Expander VS  Nyquist plugin for Audacity File: nonlinearcompressorvs.ny (in the attachment) File: 02 compression curve ncvs level 0.5.png (in the attachment) This compressor performs nonlinear amplification of the sound signal. When level < 1, it works as compressor which increases loudness. When level > 1, it works as expander. How to use: 1. Normalize to 0dB. 2. Apply the compressor. This compressor has only one control parameter, and, therefore, it is easy to use. The result of compression is a kind of psychedelic sound enhanced with odd overtones. HOW IT WORKS The magic formula of compression is very simple: y = x*(level)^(abs(x)1) abs(x) means absolute value of x: abs(x) = x x = sound y = compressed sound The theory is here: http://www.climatehoax.ca/audio/ http://en.wikipedia.org/wiki/Physics_of_music 