# squelch.1 manual page

## NAME

           squelch - apply squelch to an audio signal

## SYNOPSIS

           squelch level

## DESCRIPTION

           squelch  reads audio data from stdin, applies a squelching
           algorithm, and writes the squelched audio to stdout.

           Squelching a signal means that the output signal  is  sup-
           pressed  if its energy level falls below a certain thresh-
           old level.  A properly adjusted squelch setting suppresses
           background noise but not any of the interesting signal.

## OPTIONS

           level  The audio level below which the signal will be sup-
                  pressed.

## AUTHOR

           Greg Hewgill <greg@hewgill.com>
           http://hewgill.com

## SEE ALSO

           rec(1)