[linux-audio-user] RE: Invert And Mix

[Mark Knecht]

> what works for me is to generate a sine wave (I used wavelab in windows),
> then copy and paste it until it is several hours long, then insert 10
> seconds of silence at the beginning. Start rolling your sine wav recording
> from another machine with a known good soundcard, and start your test
> machine recording in the silent period. Its super easy to sync up to your
> original wav by deleting all the silence at the beginning.
>
Along these lines RME provides a number of audio test files that you might
be interested in. One advantage of getting them from a known source is the
ability to do level matching throughout your system.

http://www.rme-audio.de/english/download/audtest.htm