Adam, the produced AAC file are correct in the sense that a compliant
decoder is able to decode them. It's rather that the encoder's quality
is poor.
I don't see how a low quality encoder is better than none at all. We
could add a warning message, though.
** Package changed: ffmpeg (Ubuntu) => libav (Ubuntu)
** Summary changed:
- ffmpeg mangles sound
+ AAC encoder produces low-quality output
** Changed in: libav (Ubuntu)
Importance: Undecided => Low
** Changed in: libav (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1069140
Title:
AAC encoder produces low-quality output
Status in “libav” package in Ubuntu:
Confirmed
Bug description:
ffmpeg mangles sound when compressing to aac.
command:
ffmpeg -i file.mkv -vcodec copy -acodec aac -ab 384000 -strict experimental
-f mp4 file.mp4
GIT ffmpeg (installed using this guide:
https://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuide) does not
have this problem with the same command used.
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