'Twas brillig, and Alexandre Savard at 23/10/09 23:55 did gyre and gimble: > I first make sure that PA runs timer scheduling mode (tsched=1) for ALSA > devices. Have you made sure that the alsa driver in use on your system supports this correctly? Most drivers do, but there are still a few problems at that level as far as I know. > Is this parameter is the /etc/pulse/daemon.conf "realtime-scheduling = > yes" Realtime schedulling is now handled by rtkit. Sadly I am led to believe that unlike other distros begin released just now (inlcuding Mandriva and Fedora) Ubunutu are not shipping rtkit. As I don't follow Ubuntu developments, this could be outdated info. > Using these pstream attributes provide me these debug messages in > pulseaudio: > > attributes->maxlength = (uint32_t) -1; > attributes->tlength = 4096; > attributes->prebuf = (uint32_t) -1; > attributes->minreq = (uint32_t) -1; > attributes->fragsize = (uint32_t) -1; > > pa_stream_connect_playback( s , NULL , attributes, > PA_STREAM_ADJUST_LATENCY, &_volume, NULL) I'll let Lennart comment on the attributes specifically as I'm no expert here. > I: sink-input.c: media.role = "phone" Just one very minor reminder, please tag the media.role as "event" for the ringing sound (you maybe already do!) and any event sounds you generate internally (i.e. not via FDO sound theme specs/libcanberra) as it's important to have this set differently than the call itself :) Cheers Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]
