> Seems rather hard on the quality, going through all those recompressions.
> Unless mpgdemux/mplex can be convinced not to recompress, just leave the
> format alone?
>
> The sox step doesn't involve any extra recompression steps, as it's already
> going from mp2 -> linear -> ac3, I just change that to mp2 -> linear ->
> louder linear -> ac3.
Actually mpgdemux just splits the file into separate (still encoded)
audio and video streams, and mplex takes separate (encoded) audio and
video streams and multiplexes them into a complete mpeg stream. So no
loss of quality there
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