NAME

stack - superimpose audio data

SYNOPSIS

stack [[infile ...] outfile]

DESCRIPTION

Superimpose the audio data from the given infiles and store the result in outfile. Shorter data (with respect to both the number of channels and sample points) is periodically repeated. All files must be in the WAVE format. Filenames default to /dev/stdin or /dev/stdout. The dash (-) is a shorthand for the default value.