Am 24.10.23 um 08:12 schrieb Ferdi Scholten:
Hi,
Vorbis audio is officially not supported by the mp4 container specifications.
Matroska does not have this problem as it supports almost all known codecs.
These are the audio codecs that are in the mp4 specifications: AAC, ALS, SLS,
MP3, MP2, MP1, CELP, HVXC, TTSI, SAOL, Apple Lossless, FLAC, Opus
Others can be muxed in, but most players will not support playing those.
Much thanks for this valuable information.
Because I want to add several audio streams to a MP4 video, I'm looking for an
audio codec, with optimal compression. As AAC in my context needs 128 kb/s, but
Vorbis only 90 kb/s, I thought, it was a good choice.
Which audio codec you would suggest, which has a wide range of compatibility,
except AAC?
Maybe Opus?
For the video I want to use HEVC.
Is there a possibility to encode AAC_HE with FFmpeg and would it make sense?
-Ulf
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