On 12/22/2010 01:41, Colin Guthrie wrote: > 'Twas brillig, and Christ Schlacta at 21/12/10 19:29 did gyre and gimble: >> load-module module-combine sink_name=mpd.002 slaves=mpd.001 channels=2 >> load-module module-remap-sink sink_name=mpd.003.lr master=mpd.002 >> channels=2 master_channel_map=left,right channel_map=left,right >> load-module module-remap-sink sink_name=mpd.003.rl master=mpd.002 >> channels=2 master_channel_map=right,left channel_map=left_right >> load-module module-combine sink_name=mpd slaves=mpd.003-rl,mpd.003.lr >> channels=2 >> >> update-sink-proplist raw device.description="actual soundcard" >> update-sink-proplist xbmc device.description="XBMC stereo output" >> update-sink-proplist mpd device.description="MPD Stereo output" >> >> ### ENd config snippet. >> >> The problem is that I'm getting some perculiar errors on starting >> pulseaudio: >> Dec 21 11:19:06 rebirth pulseaudio[14764]: module-combine.c: No slave >> sinks specified. > Hmm, interesting. Any idea which of the two combines this message is > coming from? > I didn't see which iof the two combine's it was coming from, but I did manage to get it working >> Dec 21 11:19:06 rebirth pulseaudio[14764]: module-remap-sink.c: No >> remapping configured, proceeding nonetheless! > There appears to be a typo in your last remap where you have > "channel_map=left_right" when I presume you mean "channel_map=left,right" > I fixed that and found another typo as well. fixing both typos fixed everything. >> then, despite the fact that it says it's proceeding, it simply proceeds >> to exit with no further log entries. > Hmm, interesting. Can you run manually via pulseaudio -vvvv (with the > appropriate --system argument - you'll have to run as root and it should > drop privs to the "pulse" user) > > the -vvv (oops, missed a v) is what saved me, after running it a half dozen times and checking the output, it was fixed! thank you very much! >> So you may ask what I'm trying to accomplish. I'm trying to downmix >> stereo audio to mono before passing it off to the virtual sink mpd.001. >> the reason is that I've got a blown speaker, that I've gotten rid of and >> only one speaker left. THis christmas music sounds terrible when you >> can't hear alvin, or you can't hear simon and theodore. > Oh Noes! :p > Never fear! between your assistance and my persistence, now we can hear all the chipmunks and all the muppets too! Christmas is saved! Yaaay!! >> If you can help >> me fix this existing config, or find a better way to downmix my music to >> mono (actually mix l and r, not just one or the other) I'd be very >> happy, and the children's christmas would be immeasurably merrier! > One potentially easier (but maybe not as nice?) way would be to create a > null sink with a single channel then use module-loopback sink to connect > it's monitor to your real sink. It should automatically upmix the mono > null sink to stereo on your real sink.... not 100% sure this will work > but it should do. > > HTHs > > Col I didn't try your method, since mine worked after fixing the mistakes. Someone who isn't me (IE: someone who understands monitors and loopbacks, instead of someone who read enough to put a bastard monster together!) should try it. one of the two methods should end up in the FAQ. Perhaps whichever has the lower CPU overhead?
