Tanu, "Tanu Kaskinen" <tanuk at iki.fi> wrote in message news:20080229052846.GA12761 at a9a.mannikko1.tontut.fi... > On Thu, Feb 28, 2008 at 09:57:31PM -0500, Jim Duda wrote: >> The first thing I need to do is to get the spdif port on my CMPCI to >> work with pulseaudio. I'm finding that defining an alsa-sink manually >> using device surround51 doesn't work, I don't get any audio. > > Instead of surround51, try spdif. Yes, spdif:0 works too, similiar to surround51, gives me 2 channel stereo. > >> Allowing pulseaudio to auto-detect does allow audio to work, but only >> with 2 channels. >> >> With auto-detection load-module module-detect, I get: >> >> *** Sink #0 *** >> Name: alsa_output.hw_0 >> Driver: modules/module-alsa-sink.c >> Description: ALSA PCM on hw:0 (C-Media PCI DAC/ADC) >> Sample Specification: s16le 2ch 44100Hz >> Channel Map: front-left,front-right >> Owner Module: 0 >> Volume: muted >> Monitor Source: 0 >> Latency: 59501 usec >> Flags: HW_VOLUME_CTRL LATENCY HARDWARE >> >> This above gives me stereo only through the spdif port. > > I don't know about module-detect, but module-hal-detect will > by default use just two channels. The default is configured > with default-sample-channels in daemon.conf. > > If you still don't have progress, I would think that one > possible solution would be to run those programs that need > AC-3 passthrough with pasuspender (e.g. start mplayer with > command "pasuspender mplayer") and configure the programs to > use the spdif device directly. I will check out pasuspender, I would expect that to work. I have yet to attempt any ac3 passthrough, I hope to test tonight. > >> If I used anything besides nothing or channels=2, I don't get any audio. > > Here I'm a bit confused - what do you give that parameter > to? I thought you were talking about module-detect, but it > doesn't accept that parameter. load-module module-alsa-sink sink_name=ac3_raw device=spdif:0 channels=6 The parameter for alsa-sink. Changing the channels has no effect with spdif, however, any value != 6 for surround51 results in no audio. I'm not sure this is important, just reporting the behavior I see. > > -- > Tanu Kaskinen
