.TH THRESH 1carl CARL
.SH NAME
thresh \- pass samples that exceed amplitude threshold
.SH SYNOPSIS
.B thresh [flags]
< floatsams > floatsams or text
.SH DESCRIPTION
flags: (default)
.TP
.B -lN
set lower bound to N (-1.0)
.TP
.B -uN
set upper bound to N (+1.0)
.TP
.B -mN
set both upper and lower bound to N (+1.0)
.TP
.B -RN
set sample rate to N (DEFSR Hz)
.PP
If output is a file or pipe, 
.B thresh 
writes floatsams exceeding -l and -u values.
If output is terminal, it writes sample number, 
time re. sampling rate, and sample value.
Input must be file or pipe.
Arguments may be expressions.
.SH AUTHOR
Gareth Loy
