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PostPosted: Fri Jan 23, 2009 1:24 am 
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Joined: Sun Sep 25, 2005 3:50 pm
Posts: 1013
Location: Los Angeles
This seems to work very well for me on my bedroom frontend. Thank you to everyone involved. I want to add that I had to change my "Mixer Control" setting to "Master" in order for this to work properly. I had no control over the volume until I made this change. I had the "Master Mixer Volume" slider set to 95% when I first tried it and I nearly gave my wife a heart attack and woke up the kids because the volume was so loud. This setting is great for those shows where it seems like half the dialogue is mumbled (i.e. "The Office"). Here are my settings in R5.5 in case anyone wants to know:
/etc/asound.conf was copied and pasted from page 1 of this thread. I'm using analogue audio out of my soundcard which feeds a cheap pair of powered speakers.

Quote:
Audio Output device: ALSA:ladcomp
Passthrough output device: Default
Max Audio Channels: Stereo Upmix: Active Linear
AC3 / DTS / Aggressive buffering UNchecked
Use internal volume controls CHECKED
Master Device: ALSA:default Mixer Control: Master


Code:
mihanson@mythbox-rfe-1:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: AD198x Analog [AD198x Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: AD198x Digital [AD198x Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

mihanson@mythbox-rfe-1:~$ lspci | grep Audio
00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)

mihanson@mythbox-rfe-1:~$ lspci -mn | grep 00:10.1
00:10.1 "0403" "10de" "026c" -ra2 "1043" "821f"

root@mythbox-rfe-1:~# lspci -vv
[...snip...]
00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)
   Subsystem: ASUSTeK Computer Inc. Unknown device 821f
   Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
   Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
   Latency: 0 (500ns min, 1250ns max)
   Interrupt: pin B routed to IRQ 19
   Region 0: Memory at dbeb4000 (32-bit, non-prefetchable) [size=16K]
   Capabilities: [44] Power Management version 2
      Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
      Status: D0 PME-Enable- DSel=0 DScale=0 PME-
   Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/0 Enable-
      Address: 0000000000000000  Data: 0000
      Masking: 00000000  Pending: 00000000
   Capabilities: [6c] HyperTransport: MSI Mapping
[...snip...]

root@mythbox-rfe-1:~# aplay -L   
default:CARD=NVidia
    HDA NVidia, AD198x Analog
    Default Audio Device
front:CARD=NVidia,DEV=0
    HDA NVidia, AD198x Analog
    Front speakers
surround40:CARD=NVidia,DEV=0
    HDA NVidia, AD198x Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=NVidia,DEV=0
    HDA NVidia, AD198x Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=NVidia,DEV=0
    HDA NVidia, AD198x Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=NVidia,DEV=0
    HDA NVidia, AD198x Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=NVidia,DEV=0
    HDA NVidia, AD198x Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=NVidia,DEV=0
    HDA NVidia, AD198x Digital
    IEC958 (S/PDIF) Digital Audio Output
null
    Discard all samples (playback) or generate zero samples (capture)

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Mike
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