[pulseaudio-discuss] [RFC] Dynamic reconfiguration of sampling rate

[Mark Brown]

On Tue, Jan 18, 2011 at 11:15:16AM +0000, Colin Guthrie wrote:

> People have requested h/w mixing before tho', but I'm not sure if that's
> simply because their h/w supports it and they want to offload to it, or
> whether they had real, practical benefits. The only practical benefit of
> h/w mixing I can think of is to allow for separate sample rates to be
> pushed to the card simultaneously and let it mix them (with SRC in h/w)
> as appropriate. That way we don't do any SRC in software but support

It also supports routing to different sets of outputs - the ringtone
plus music playback example I mentioned in reply to Pierre-Louis is one
of the more obvious examples.  This is probably more important in the
embedded case than in the desktop case.