Re: [alsa-devel] Fundamental principle of audio mixing?

On 9/24/07, Nobin Mathew nobin.mathew@gmail.com wrote:

Can any body throw some lights on how audio mixing is done in software? Basic principle?

Basically you add the PCM samples (if they are at the same resolution and sampling rate) and renormalize if needed. The sampling rate conversion can be tricky tho.