Asoundrc CMI8738-MC6
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Turtle Beach Riviera (or similar, chipset: C-Media CMI8738-MC6) Configuration
Contents
CMI8738-MC6 Information
[1]ALSA Documentation for C-Media CMI8738 Driver
Alsamixer Settings
Make sure the following are set to use Optical [2] SPDIF output:
- 'IEC958 Output' - UnMuted
- 'IEC958 In Monitor' - UnMuted
- 'IEC958 Loop' - Muted
If your front speakers are not working, try disabling the onboard soundcard on the BIOS (it worked for me). One user reported non working front speakers at the Ubuntu Forums and he fixed them disabling his onboard soundcard by motherboard jumpers.
asoundrc file
via Darren Richards
# Override the default output used by ALSA. # If you do not override the default, your default # device is identical to the (unmixed) analog device # shown below. If you prefer mixed and/or digital # output, uncomment the appropriate four lines below # (only one slave.pcm line). ### Currently set w/digital-hw as the default output, ### comment out this entire section to use unmixed ### analog as your default ### -jarod pcm.!default { type plug ## Uncomment the following to use mixed analog by default # slave.pcm "dmix-analog" ## Uncomment the following to use unmixed digital by default slave.pcm "digital-hw" ## Uncomment the following to use mixed digital by default # slave.pcm "dmix-digital" } # Alias for analog output on the Audigy (hw:0,0) # - This is identical to the device named "default"--which # always exists and refers to hw:0,0 (unless overridden) # - Therefore, we can specify "hw:0,0", "default", or "analog" # to access analog output on the Audigy pcm.analog { type plug slave.pcm "analog-hw" } # Control device (mixer, etc.) for the Audigy card ctl.analog { type hw card 0 } # Alias for (rate-converted) mixed analog output on the # Audigy (hw:0,0) # - This will accept audio input--regardless of rate--and # convert to the rate required for the dmix plugin # (in this case 48000Hz) pcm.mixed-analog { type plug slave.pcm "dmix-analog" } # Control device (mixer, etc.) for the Audigy card ctl.mixed-analog { type hw card 0 } # Alias for (rate-converted) digital (S/PDIF) output on the # Audigy (hw:0,0) # - This will accept audio input--regardless of rate--and # convert to the rate required for the S/PDIF hardware # (in this case 48000Hz) pcm.digital { type plug slave.pcm "digital-hw" } # Control device (mixer, etc.) for the Audigy card ctl.digital { type hw card 0 } # Alias for mixed (rate-converted) digital (S/PDIF) output on the # Audigy (hw:0,0) # - This will accept audio input--regardless of rate--and # convert to the rate required for the S/PDIF hardware # (in this case 48000Hz) pcm.mixed-digital { type plug slave.pcm "dmix-digital" } # Control device (mixer, etc.) for the Audigy card ctl.mixed-digital { type hw card 0 } # The following devices are not useful by themselves. They # require specific rates, channels, and formats. Therefore, # you probably do not want to use them directly. Instead use # of of the devices defined above. # Alias for analog output on the Audigy (hw:0,0) # Do not use this directly--it requires specific rate, # channels, and format pcm.analog-hw { type hw card 0 # The default value for device is 0, so no need to specify } # Control device (mixer, etc.) for the Audigy card ctl.analog-hw { type hw card 0 } # Alias for digital (S/PDIF) output on the Audigy (hw:0,0) # Do not use this directly--it requires specific rate, # channels, and format pcm.digital-hw { type hw card 0 # device 0 device 2 } # Control device (mixer, etc.) for the Audigy card ctl.digital-hw { type hw card 0 } # Direct software mixing plugin for analog output on # the Audigy (hw:0,0) # Do not use this directly--it requires specific rate, # channels, and format pcm.dmix-analog { type dmix ipc_key 1234 slave { pcm "analog-hw" period_time 0 period_size 1024 buffer_size 4096 rate 48000 } } # Control device (mixer, etc.) for the Audigy card ctl.dmix-analog { type hw card 0 } # Direct software mixing plugin for digital (S/PDIF) output # on the Audigy (hw:0,0) # Do not use this directly--it requires specific rate, # channels, and format pcm.dmix-digital { type dmix ipc_key 1235 slave { pcm "digital-hw" period_time 0 period_size 1024 buffer_size 4096 rate 48000[http://www.arizona-breast-cancer-specialists.com/brachytherapy/all-about-what-is-brachytherapy.html Brachytherapy] } } # Control device (mixer, etc.) for the Audigy card ctl.dmix-digital { type hw card 0 }
--Steveadeff 18:07, 8 January 2006 (UTC)