in reply to
Simple tone to audio card speakers
The Audio namespace seems to have several options. It looks like Audio::Play is the most portable.
$audio = Audio::Data->new(...)
$svr = Audio::Play->new;
Audio::DSP or Audio::OSS may be good options on Linux.
The intelligent reader will judge for himself. Without examining the facts fully and fairly, there is no way of knowing whether vox populi is really vox dei, or merely vox asinorum. — Cyrus H. Gordon