Re: "norm" effect causes intermittent truncation of MP3 output.

"Peter P." <[email protected]> Thu, 17 Jun 2021 17:46:33 +0200
Newsgroups gmane.comp.audio.sox
Message-ID <[email protected]>
Hi Scott,

encountered a similar thing and was told that the file length of mp3
files has a lower resolution as it stores data in chunks. If your .wav
is a bit longer than the mp3 but not long enough to fill up another
chunk at the end this might get discarded. Don't quote me on this, just
remembering something I asked here years ago...

* Scott Temby <[email protected]> [2021-06-17 16:03]:
> Hi,
> 
> When using "sox.exe *<source_file>.wav* -C 192.01
> *<destination_file>.mp3* norm"
> I've found the output is occasionally truncated (shorter duration than the
> input, but matches up to that point).
> 
> I've tried this on a few systems, and while the fault is intermittent (not
> linked to any particular input file or condition), it does repeatedly occur
> (a few times in a "batch"). Immediately re-processing the same input files
> often yields success, or at least, failures on different files. I've also
> tried -C 192.2 to see if that was the issue, and it is not. removing "norm"
> solves the problem, and I can reliably encode thousands of files without
> truncation.
> 
> Hopefully there's an easy fix, if not, at least you are now aware of the
> issue.
> 
> Regards,
> Scott


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