[FFmpeg-user] Merging normalized audio file with original acodec quality.

Roger Pack rogerdpack2 at gmail.com
Sat Dec 15 01:24:00 CET 2012

On 12/14/12, nanooq <nanooq at hasi.it> wrote:
> Hello all,
> my question concerns handling of acodecs.
> I have an original MTS file A.MTS.
> For better audio, I extraced its audio and normalized it with
> "normalize" which needs WAV, so now I have a normalized Audio.WAV.
> When it comes to merging back I first look at A.MTS original audio
> codec, note the parameters and then, secondly craft the ffmpeg command
> by hand with the previously noted parameters.
> I would like to automate things now and tell ffmpeg to use the acodec
> that A.MTS had.
> Here would be the command I have in mind:
> ffmpeg -i A.MTS -i Audio.WAV -map 0:0 -map:1:0 -vcodec copy -acodec
> "WAIT! Take the acodec from A.MTS, instead!" AwesomeMerge.MTS
> Is there a working way for the acodec part?

AFAIK no, you have to extract it yourself and use it...I would find
this an interesting feature, as well.

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