Re: normalize audio in mp4s
On Mon 09 Mar 2020 at 19:38:06 (+0100), Jonas Smedegaard wrote:
> Quoting David Wright (2020-03-09 19:08:26)
> > On Mon 09 Mar 2020 at 12:26:53 (+0100), Jonas Smedegaard wrote:
> > > So if high-quality normalization is not important (and you don't
> > > want to try play with stripping my script), then directly use
> > > ffmpeg, or use any other of the many many many ffmpeg-based tools
> > > available.
> > >
> > > ...or use sox (but still use ffmpeg to extract audio part of mp4
> > > files).
>
> Please note that the subject of this conversation is mp4 (not mp3).
I haven't mentioned MP3 since my first post, where a warning was given
in the second paragraph that my target was MP3s. The rest of my posts
have been about companding and normalising.
I'm not sure why you feel the need to circumscribe the discussion.
Earlier you wrote "I use melt because I can then handle video as well
- either do various compression of that as well".
I asked for clarification of what you meant by compression (which
has two meanings in this context) and you wrote "but please let's
limit this conversation to _audio_ processing". Odd, as only you
had mentioned processing the video; I'm only interested in preserving
it for the OP.
> Please also note that above quote was a continuation of this:
>
> > If you only process uncompressed audio then sox is fine.
The posts were getting long, so because I was only commenting on your
mention of your script, I snipped virtually the whole of the
preceding. Sorry for not removing the last line: I didn't quote you
freely, but laxly.
Cheers,
David.
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