Opened 15 years ago
Closed 14 years ago
Last modified 14 years ago
#6699 closed defect (fixed)
8 Channel audio tracks play only white noise
Reported by: | Owned by: | JYA | |
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Priority: | minor | Milestone: | 0.23 |
Component: | MythTV - Audio Output | Version: | head |
Severity: | medium | Keywords: | |
Cc: | Ticket locked: | no |
Description (last modified by )
After the ffmpeg resync in [20797], TrueHD and LPCM 8 channel audio tracks cause loud, persistent white noise. This affects all primary audio tracks in HD-DVD material and many primary audio tracks from Blu ray material.
After switching to the TrueHD track, the audio becomes loud white noise, and the video framerate is halved.
30 second Sample available at:
http://www.fecitfacta.com/truehdfail.evo
I can provide additional samples of varying lengths on request. Thanks!
Change History (8)
comment:1 Changed 15 years ago by
Description: | modified (diff) |
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Summary: | TrueHD Tracks in EVOB containers do not play properly → 8 Channel audio tracks play only white noise |
comment:2 Changed 15 years ago by
Owner: | changed from Isaac Richards to Janne Grunau |
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Status: | new → accepted |
comment:3 Changed 15 years ago by
comment:4 Changed 14 years ago by
Component: | MythTV - Video Playback → MythTV - Audio Output |
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Owner: | changed from Janne Grunau to JYA |
Status: | accepted → assigned |
comment:5 Changed 14 years ago by
Status: | assigned → infoneeded |
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Can you confirm that the issue still occurs with trunk >= 22432.
Normally, the Audio should now be re-encoded as AC3...
comment:6 Changed 14 years ago by
Resolution: | → fixed |
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Status: | infoneeded → closed |
Yep, all seems to mostly work now-- there are some secondary issues related to decode/transcode of the original audio track but they may be an upstream issue so I'll narrow those further. Appears fixed by r22432.
comment:7 Changed 14 years ago by
Milestone: | unknown → 0.23 |
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comment:8 Changed 14 years ago by
Final note.. I hope to have 7 and 8 channels supports added for 0.23
(In [22109]) set sample format to S16 for the TrueHD decoder
MythTV cannot handle S32 at the moment. Makes the audio in Refs #6699 recognizeable but there still an annoying repetitive distortion.