The Noise Reduction feature of Cool edit is normally
used to remove noises of a continous nature.
Here is what the online help says:
Edit 2000's Noise Reduction feature can dramatically reduce background
and general broad band noise with minimal reduction in signal quality.
It can also remove tape hiss, microphone background noise, 60 cycle
hum, or any noise that is constant throughout the duration of your
But that is not
the end of the story. Cool 2000 has also the power to reduce very
effectively noises that are not continous at all from certain signals.
This tutorial will show how this can be done. For the usual approach to
noise reduction it is necessary that the signal is varying while the
background noise remains constant.
Yet it is often the case that the signal remains constant while the
It is always very annoying to find that somebody was coughing right in
the quietest passage of a classical recital. People leave their
seats or unwrap their drops. This can spoil a whole recording.
Cool Edit can now help here. The noise is never totally removed but it
is often possible to reduce it to an amount that makes it almost