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?
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