Re: lost sync warning

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Mac <macdroid53@xxxxxxxxx> writes:

> Hi,
>
> I did some normalization of some mp3 files and on some got the warning:
>
> sox WARN mp3-util: MAD lost sync

That means the mp3 decoder didn't find a frame sync code where it
expected one.  This could be due to file corruption or simply a trailing
ID3 tag.

> The resulting files seem to be ok, i.e. they seem to play from beginning to
> end (I have the pre normalization version of the file for comparison)
>
> Also, the resulting files are much smaller. Sometimes megabytes smaller.
> Whats up with that?

The output probably uses a lower bit rate setting.

> And, does normalizing an mp3 multiple times degrade the audio?

Yes.

-- 
Måns Rullgård

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