[pulseaudio-discuss] pulseaudio mixer

Colin Guthrie gmane at colin.guthr.ie
Sat Jul 16 14:56:43 PDT 2011


'Twas brillig, and Himanshu Chug at 14/07/11 13:05 did gyre and gimble:
> What audio mixer is used by pulseaudio?
> Is pulseaudio maintaining its own software mixer (??) and send one
> single mixed stream to the sink or mixing of streams is done at alsa
> level (using alsa mixer ? dmix ? )
> can we configure the mixer settings?

PulseAudio does it's own mixing and it's not really configurable. You
can run PA on top of dmix but there is virtually no benefit and lots of
drawbacks (like breaking any kind of timer-based scheduling and adding
unnecessary overhead).

Resampling is a different story, but you didn't ask about that :D



Colin Guthrie

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