OK, my setup Intel D945GTP board, optical link to 5.1 amp and normal stereo line out to TV's scart input (custom interlaced 720x576 csync PAL VGA->scart too) Running Fedora Core 6 with latest updates and mythtv with dependencies from atrpms, this includes ALSA 1.0.13 I started off without any soundserver, alsa sees the Intel HDA, in gnome volme control I can select S/PDIF output, mythtv plays TV sound happily through /dev/dsp or /dev/adsp or ALSA:hw:0 also AC3 passthrough from DVDs works fine. If I use the line out, mythtv can control the volume mixer, if I use optical out, mythtv cannot, so I have to manually control volume. I suppose I could have just asked here or on pulseaudio list first off will using pulseaudio allow me to have 2.0/5.1 audio with a software mixer that myth will be able to control, and still output via the S/PDIF but where would the fun be in not trying it myself? I've already learnt more about alsa/pulse, and as I understand it's slated for inclusion in Fedora7 that's not bad thing. I heard about pulseaudio from LCA2007, and installed pulseaudio 0.9.5 from Fedora Extras. I ran "pulseaudio -C" the automatically detected ALSA sink was using hw:0,0 so output from aplay/paplay went to lineout, and stereo sound worked ok I then did an unload-module on the alsa sink (index 0) and load-module module-alsa-sink device=hw0,1 so that the only sink was now my optical output stereo sound worked ok, I tried with the 5.1 wav file samples from www.sr.se and all channels work fine with paplay :-) I added the pcm/ctl entries for pulse to /etc/asound.conf but couldn't use -Dpulse with aplay, I realised that Fedora Core/Extras doesn't ship with the libasound_module_pcm_pulse.so so I retrieved the source for alsa-plugins, and built it and installed them (they went to /usr/lib/lib-alsa/ so I moved them to /usr/lib64/lib-alsa/ Now stereo sounds work with aplay using -Dpulse, but 5.1 doesn't work, I get hissy/random noises, so probably my channel map isn't correct. I tried setting mythtv to use ALSA:pulse for it's 2.0 output, if I start mythfrontend with -v debug I can see from the logs that it is opening pcm device pulse, but gets a message 2007-02-02 16:03:48.723 Opening ALSA audio device 'pulse'. 2007-02-02 16:03:48.732 AudioOutput Error: Access type not available: Invalid argument 2007-02-02 16:03:48.732 AudioOutput Error: Unable to set ALSA parameters I'm wondering if anyone else has mythtv working with it's audio going into ALSA via the pulse driver? Thanks for any help/suggestions Andy. ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
