Opened 16 years ago
Closed 15 years ago
#5384 closed defect (duplicate)
AC3 passthrough does not function when Max Audio Channels set to '5.1', only when set to 'Stereo'
Reported by: | Owned by: | Isaac Richards | |
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Priority: | minor | Milestone: | unknown |
Component: | mythtv | Version: | 0.21 |
Severity: | medium | Keywords: | ac3 5.1 passthrough max audio channels |
Cc: | Ticket locked: | no |
Description
I have set up the audio to passthrough ac3 encoded sound (5.1 channels) to my external digital audio receiver. Ironically, in the Setup->General->Audio screen in the Frontend, if I choose '5.1' for 'Max Audio Channels' the passthrough does not work, and only silence is heard on my speakers. If I set it instead to 'Stereo', I get proper passthrough and full 5.1 channel sound on the speakers.
Change History (4)
comment:1 Changed 16 years ago by
comment:2 Changed 16 years ago by
This happens to me too. Here is what I see from a log on the frontend.
2008-06-08 14:27:00.714 AFD: Opened codec 0x867c930, id(MPEG2VIDEO) type(Video) 2008-06-08 14:27:00.714 AFD: codec AC3 has 6 channels 2008-06-08 14:27:00.715 AFD: Opened codec 0x964cb40, id(AC3) type(Audio) 2008-06-08 14:27:01.246 AFD: Opened codec 0x964cb40, id(MPEG2VIDEO) type(Video) 2008-06-08 14:27:01.246 AFD: codec AC3 has 6 channels
I think this is the relevant part. I see no errors anywhere.
aplay -L default:CARD=CK804
NVidia CK804, NVidia CK804 Default Audio Device
front:CARD=CK804,DEV=0
NVidia CK804, NVidia CK804 Front speakers
surround40:CARD=CK804,DEV=0
NVidia CK804, NVidia CK804 4.0 Surround output to Front and Rear speakers
surround41:CARD=CK804,DEV=0
NVidia CK804, NVidia CK804 4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=CK804,DEV=0
NVidia CK804, NVidia CK804 5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=CK804,DEV=0
NVidia CK804, NVidia CK804 5.1 Surround output to Front, Center, Rear and Subwoofer speakers
null
Discard all samples (playback) or generate zero samples (capture)
comment:4 Changed 15 years ago by
Resolution: | → duplicate |
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Status: | new → closed |
I can confirm that this happens to me as well, running the latest 21-fixes SVN.