keith preston wrote: > > I am playing a MP3 through gstreamer(mad) to a pulseaudio sink (s16le > 44100) to pulseaudio through the native protocol. > In this configuration pulse audio was set up with an alsa output source > (s16le 44100). This is a direct alsa hookup (no dmix) > You completely sure you have the same in and out formats/rate? I'd suggest feeding it with something that you know uses a different format/rate and see how much CPU that eats. > > To me this seems like I am doing something wrong, that is quite a bit of > overheard for essentially what should be transferring and buffering at a > sound server. I double and triple checked most of my setting. Are there > any performance detractors that I could be missing? I started to > investigate volume and noticed that changing the(pulse) volume didn't > affect CPU utilization. Is the volume filter always on? Even in the > case > where it should be an identity (100% volume).? I definitely want to > improve > this, I just need a little guidance on where to look. > Volume is only done in software if that hardware is insufficent (no hw support at all or not able to scale per channel). Rgds -- Pierre Ossman OpenSource-based Thin Client Technology System Developer Telephone: +46-13-21 46 00 Cendio AB Web: http://www.cendio.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 251 bytes Desc: OpenPGP digital signature URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20070216/31ed293f/attachment.pgp>
