<div style>Until today, I was using only analog surround sound in mythtv.</div><div style>Since I finally got audio over HDMI working, I want to use it for normal TV watching.</div><div style>I only want to use the surround sound system for watching movies now (previously was used for all sound).</div>
<div style><br></div><div style>I was able to get both digital and analog output simultaneously with an asoundrc I got from: <a href="http://forum.xbmc.org/showpost.php?p=418455&postcount=4" target="_blank" style="color:rgb(17,85,204)">http://forum.xbmc.org/showpost.php?p=418455&postcount=4</a></div>
<div style>However this only works with stereo sound. How can I change this to allow surround sound over analog (I don't really care how many channels are on HDMI, but downmix ideally atm)?</div><div style><br></div>
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I've tried changing a few things, but when I try to test with speaker-test, it just gives me an error (typically):</div><div style><div><font face="'courier new', monospace">mythtv@dragon ~ $ speaker-test -c2 -r48000 -Dplug:both</font></div>
<div><font face="'courier new', monospace"><br></font></div><div><div><font face="'courier new', monospace">speaker-test 1.0.24.2</font></div><div><font face="'courier new', monospace"><br></font></div>
<div><font face="'courier new', monospace">Playback device is plug:both</font></div><div><font face="'courier new', monospace">Stream parameters are 48000Hz, S16_LE, 6 channels</font></div><div><font face="'courier new', monospace">Using 16 octaves of pink noise</font></div>
<div><font face="'courier new', monospace">ALSA lib pcm_params.c:2162:(snd1_pcm_hw_refine_slave) Slave PCM not usable</font></div><div><font face="'courier new', monospace">Broken configuration for playback: no configurations available: Invalid argument</font></div>
<div><font face="'courier new', monospace">Setting of hwparams failed: Invalid argument</font></div></div></div><div style><br></div><div style>I've read various sites on asoundrc, but I don't seem to understand it. Bindings and ttables in particular (which are what I believe I need to change).</div>
<div style><br></div><div style>I've attached the bad asoundrc I tried to modify.</div><div style><br></div><div style>Here's my setup:</div><div style>Mythtv connected to TV via HDMI</div><div style>Mythtv also connected to 5.1 analog surround speakers (not receiver).</div>
<div style>The system has an M3N78VM motherboard.</div><div style><br></div><div style>Aplay:</div><div style><div><font face="'courier new', monospace">mythtv@dragon ~ $ aplay -L</font></div><div><font face="'courier new', monospace">null</font></div>
<div><font face="'courier new', monospace"> Discard all samples (playback) or generate zero samples (capture)</font></div><div><font face="'courier new', monospace">front:CARD=NVidia,DEV=0</font></div>
<div>
<font face="'courier new', monospace"> HDA NVidia, ALC1200 Analog</font></div><div><font face="'courier new', monospace"> Front speakers</font></div><div><font face="'courier new', monospace">surround40:CARD=NVidia,DEV=0</font></div>
<div><font face="'courier new', monospace"> HDA NVidia, ALC1200 Analog</font></div><div><font face="'courier new', monospace"> 4.0 Surround output to Front and Rear speakers</font></div><div><font face="'courier new', monospace">surround41:CARD=NVidia,DEV=0</font></div>
<div><font face="'courier new', monospace"> HDA NVidia, ALC1200 Analog</font></div><div><font face="'courier new', monospace"> 4.1 Surround output to Front, Rear and Subwoofer speakers</font></div><div>
<font face="'courier new', monospace">surround50:CARD=NVidia,DEV=0</font></div><div><font face="'courier new', monospace"> HDA NVidia, ALC1200 Analog</font></div><div><font face="'courier new', monospace"> 5.0 Surround output to Front, Center and Rear speakers</font></div>
<div><font face="'courier new', monospace">surround51:CARD=NVidia,DEV=0</font></div><div><font face="'courier new', monospace"> HDA NVidia, ALC1200 Analog</font></div><div><font face="'courier new', monospace"> 5.1 Surround output to Front, Center, Rear and Subwoofer speakers</font></div>
<div><font face="'courier new', monospace">surround71:CARD=NVidia,DEV=0</font></div><div><font face="'courier new', monospace"> HDA NVidia, ALC1200 Analog</font></div><div><font face="'courier new', monospace"> 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers</font></div>
<div><font face="'courier new', monospace">iec958:CARD=NVidia,DEV=0</font></div><div><font face="'courier new', monospace"> HDA NVidia, ALC1200 Digital</font></div><div><font face="'courier new', monospace"> IEC958 (S/PDIF) Digital Audio Output</font></div>
<div><font face="'courier new', monospace">hdmi:CARD=NVidia,DEV=0</font></div><div><font face="'courier new', monospace"> HDA NVidia, HDMI 0</font></div><div><font face="'courier new', monospace"> HDMI Audio Output</font></div>
</div><div style><br></div><div style>Any help/advice is greatly appreciated!</div><div><br></div>Daniel<br>