[mythtv-commits] Ticket #9257: Audio Upmixing Does Not Appear to be Working

MythTV mythtv at cvs.mythtv.org
Fri Nov 19 00:35:16 UTC 2010


#9257: Audio Upmixing Does Not Appear to be Working
------------------------------------------------+---------------------------
 Reporter:  Scott Harris <snharris99@…>         |            Type:  Bug Report      
   Status:  new                                 |        Priority:  minor           
Milestone:  unknown                             |       Component:  MythTV - General
  Version:  0.24-fixes                          |        Severity:  medium          
 Keywords:                                      |   Ticket locked:  0               
------------------------------------------------+---------------------------
 Upmixing of 2 channel audio appears to have been broken in the last couple
 auto builds.

 Mythbuntu 10.04 64 bit, mythfrontend 24.0+fixes27280-0ubuntu0+mythbuntu1

 results from aplay -L, which lines up with result when scanning for audio
 devices within myth.

 {{{
 null
     Discard all samples (playback) or generate zero samples (capture)
 default:CARD=CMI8738
     C-Media CMI8738, C-Media PCI DAC/ADC
     Default Audio Device
 front:CARD=CMI8738,DEV=0
     C-Media CMI8738, C-Media PCI DAC/ADC
     Front speakers
 rear:CARD=CMI8738,DEV=0
     C-Media CMI8738, C-Media PCI 2nd DAC
     Rear speakers
 surround40:CARD=CMI8738,DEV=0
     C-Media CMI8738, C-Media PCI 2nd DAC
     4.0 Surround output to Front and Rear speakers
 surround41:CARD=CMI8738,DEV=0
     C-Media CMI8738, C-Media PCI 2nd DAC
     4.1 Surround output to Front, Rear and Subwoofer speakers
 surround50:CARD=CMI8738,DEV=0
     C-Media CMI8738, C-Media PCI 2nd DAC
     5.0 Surround output to Front, Center and Rear speakers
 surround51:CARD=CMI8738,DEV=0
     C-Media CMI8738, C-Media PCI 2nd DAC
     5.1 Surround output to Front, Center, Rear and Subwoofer speakers
 iec958:CARD=CMI8738,DEV=0
     C-Media CMI8738, C-Media PCI DAC/ADC
     IEC958 (S/PDIF) Digital Audio Output

 }}}

 MythTV Audio Settings in "General"...

 Audio output device: default:CARD=CMI8738[[BR]]
 Dolby: Enabled[[BR]]
 DTS: Enabled[[BR]]
 Speaker Config: 5.1[[BR]]
 Upconvert: enabled[[BR]]
 Upmix Quality: Best[[BR]]
 Advanced audio configuration: enabled[[BR]]
 Separate digital output device: enabled[[BR]]
 Digital output device: ALSA:iec958:{ AES 0x02 }[[BR]]

 I have no special config files, this is all from a standard installation.
 These setting produced upmixed audio up until the last couple builds for
 the channel I played in the attached log.  Attached to my receiver with an
 optical connection.

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/9257>
MythTV <http://www.mythtv.org/>
MythTV Media Center


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