[FFmpeg-trac] #2686(avcodec:open): Native AAC encoder collapses at high bitrates on some samples

[FFmpeg]

#2686: Native AAC encoder collapses at high bitrates on some samples
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             Reporter:  Kamedo2      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by Kamedo2):

 Replying to [comment:39 klaussfreire]:
 > The reason I mention this is because, from my experience, FAAC tends to
 have a low cutoff for some bitrates, that seem optimal with speakers, but
 sound noticeably dull with headphones.
 Exactly. FAAC cutoff is rather annoyingly low in 96kbps, 64kbps, and
 32kbps, and the filter is the major reason why FAAC never beats Nero.

 BTW, any prospects for fixing samples 1, 4, 5, and white noise? 4 and 5 is
 bad at 320kbps and whitenoise.flac is bad at 384kbps. Both regain quality
 by -cutoff 18000.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2686#comment:40>
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