>
> Just top be clear: I'm pretty sure that's not _extracting_ the audio, but
> _transcoding_ it.
>
> The midentify output in my original post shows the audio to be AAC.
Extraction is;
ffmpeg -i "input file.mp4" -acodec copy "output file.aac"
Man page;
" Stream copy
Stream copy is a mode selected by supplying the "copy" parameter to
the
-codec option. It makes ffmpeg omit the decoding and encoding step
for
the specified stream, so it does only demuxing and muxing. It is
useful
for changing the container format or modifying container-level
metadata. "
