[plug] Converting WAVs with 0-bit sample size?

Andrew Furey andrew.furey at gmail.com
Mon Aug 6 22:26:41 WST 2007

On 27/07/07, Andrew Furey <andrew.furey at gmail.com> wrote:
> I then converted it to MS-style WAV with
> sox -g plugtest.gsm -a plugtest.wav
> So far so good, but if I convert it to MP3 with bog-standard
> lame plugtest.wav plugtest.mp3
> it produces the third file, which is obviously garbage.

Doing some more testing, file(1) identifies the .WAV file as "MS
ADPCM". If I open it in Goldwave and re-save it, it becomes "MS PCM"
(and lame then converts it correctly).

Further research shows that sox's "-s" option (rather than -a) does
the trick. So doing
sox -g plugtest.gsm -s plugtest.wav
lame plugtest.wav plugtest.mp3

produces a valid MP3.

Thanks everyone for your suggestions... I can now get on and implement
the rest :)


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Language, be it English or something else, is the only tool flexible
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