On Wed, 19 Sep 2007 13:57:45 -0400, Deek wrote:

AUUDDIIOOO wrote:

John Doe and Deek are full of ****,Deek is saying that if you compress audio
its distorted, He is full of it.
Deek if you run a 300 or 1000, or 3000 Hz signal into a good compressor,
since the circuit its only a controlled gain amp, the sinewave will come
out not distorted.

Simple test. Use a dual channel oscilloscope.

Display the input signal on one channel.

Display the output signal on the other.

Normalize the gain at one frequency, and don't touch the gain for the duration
of the test.

Adjust both traces to overlap each other.

Insert a swept frequency audio signal into the device. If the two traces are not
identical, the circuit introduces DISTORTION.

So a bandpass filter for example is a distortion generator? Better
tip off all of those BC stations and recording studios that are using
equalizers.


A brief course in Fourier transforms will convince you that a distorted sine
wave signal is still a series of sine waves, the fundamental, the 2nd, 3rd, 4th
harmonic, etc. The existence of those harmonics is by definition DISTORTION.

I see. So a perfect sine wave run through a perfect clipper will
generate a 2nd harmonic?