[pulseaudio-discuss] module-remap-sink question

[Jan Kasprzak]

	Hello,

thanks for the module-remap-sink - this is apparently excatly what I need
to have virtual soundcards for my dual-seat setup.

	However, I am probably doing something wrong, because even when
I move the stream to another virtual sink, almost all outputs still play.
The detailed description follows:

	My OS is Fedora 10/x86_64 (pulseaudio-0.9.13-6.fc10.x86_64).

	My hardware is ASUS M3A32-MVP mainboard. The sound device is reported
by lspci as "ATI Technologies Inc SBx00 Azalia", alsamixer -D hw:0 reports
"Card: HDA ATI SB", and "Chip: Analog Devices AD1988B". This card has six
rear jacks, described in manual as

	Line in
	Line out (front speakers or headphones)
	Microphone
	Center/Subwoofer
	Rear speakers
	Side speakers

	I have tried to disable module-hal-detect and module-detect
in /etc/pulse/default.pa, and instead added the following physical
device, and four virtual devices:

load-module module-alsa-sink sink_name=eightchannel device=hw:0 channels=8 channel_map=front-left,front-right,rear-left,rear-right,center,subwoofer,side-left,side-right

load-module module-remap-sink sink_name=virtfront master=eightchannel channels=2 master_channel_map=front-left,front-right channel_map=front-left,front-right

load-module module-remap-sink sink_name=virtrear master=eightchannel channels=2 master_channel_map=rear-left,rear-right channel_map=front-left,front-right

load-module module-remap-sink sink_name=virtcentersub master=eightchannel channels=2 master_channel_map=center,subwoofer channel_map=front-left,front-right

load-module module-remap-sink sink_name=virtside master=eightchannel channels=2 master_channel_map=side-left,side-right channel_map=front-left,front-right

	Now when I create an output stream (I use mpd), I can see it
in pavucontrol, and I can see all five sinks.  The only problem is that the
sinks are not labeled by their sink_names, but instead the first one is
"HDA ATI SB AD198x Analog", and all four others are labeled
"Remapped HDA ATI ...", which is kind of unreadable.

	When I redirect the mpd stream to any of the above sinks
except the "virtcentersub", the sound is playing in all four output jacks,
only in the Center/subwoofer jack the right channel remains silent.

	When I redirect the mpd stream to the "virtcentersub" sink,
all output jacks remain silent, except the Center/Subwoofer jack
now plays correctly both channels (which is what I expect it to do).

	I have also verified that I have the channels in the "eightchannel"
sink set up correctly - when I move their respective sliders in pavucontrol,
I can hear the volume change of the correct channel of the correct jack.

	So my question is - why the sound always plays to all channels
(except the right channel of the center/subwoofer jack) even when directed
through the module-remap-sink to only one jack?

	Thanks,

-Yenya

-- 
| Jan "Yenya" Kasprzak  <kas at {fi.muni.cz - work | yenya.net - private}> |
| GPG: ID 1024/D3498839      Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E |
| http://www.fi.muni.cz/~kas/    Journal: http://www.fi.muni.cz/~kas/blog/ |
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