Description:

Snack is a sound processing toolkit designed as an extension
to a scripting language. Snack currently works with the scripting
languages Tcl/Tk, Python, and Ruby.

Snack has commands to play, record, process, and visualize sound.
Snack provides high level sound objects, with flexible storage management,
and streaming support. It handles most common sound file formats.
The visualization canvas item types update in real-time and can output
postscript. The same scripts run on Unix (Linux, Solaris, HP-UX, IRIX,
FreeBSD, NetBSD), Macintosh, and Windows 95/98/NT/2000/XP.