>
> Hi!
>
> I'm trying to add a softvol control to act as a master control for all the
> channels on my sound card. I have a M-Audio Revolution 7.1 soundcard.
> ALSAMIXER shows PCM, center, LFE, rear and side mixers, but no master mixer
> to control all the channels. I'm currently running Ubuntu 9.04 which uses
> the Pulse Audio sound server by default.
>
> In my pulseaudio /etc/pulse/default.pa file I added the following:
> load-module module-alsa-sink device="surround71" channels=8 sink_name=sur71
> This allowed me to have output on all the channels from all the players I
> use (Rhythmbox, Mplayer...) so I have no ALSA config to upmix stereo or 5.1
> to 7.1.
>
> Im my .asoundrc file in my home directory I put the following:
> pcm.!default {
>
> type plug
>
> playback.pcm "softvol"
>
> }
> pcm.!surround71 {
>
> type plug
>
> slave.pcm "softvol"
>
> }
> pcm.softvol {
>
> type softvol
>
> slave.pcm "hw:0,0"
>
> control {
>
> name "SoftMaster"
>
> card 0
>
> }
>
> }
>
> This adds the "SoftMaster" mixer control to the ALSA mixer, but it is not
> working as expected. In both Mplayer and Rythmbox the movie/music is started
> but only plays for a few seconds and then stops. I also noticed that the
> timer in both these applications do not start, it stays at 00:00. If I
> change the volume on the SoftMaster mixer while the sound is playing it does
> work on all channels.
>
> If I test the softvol mixer with speaker-test it works fine. If I remove
> the pcm.!surround71 from the asoundrc file everything works as before and
> the softvol mixer does nothing.
>
> What am I missing? Can anyone help me with this?
>
> Thank you in advance!
> Iwan
>
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