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I want to know how do I convert an mp3 file to vox file format.

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up vote 3 down vote accepted

You want Sound eXchange aka SoX. Here's an example of converting WAV to VOX (source):

sox input.wav -r 8000 -c 1 output.vox vol 1.0 polyphase stat

See the SoX manpage and supported file formats documentation.

Note that the general sox syntax is:

sox [global-options] [input-format-options] infile1 [... infile2]
[output-format-options] outfile [effect [effect-options]

So in the above example, -r 8000 -c 1 are format options for the output VOX file.

You probably won't need input file options for MP3 data since SoX can read that from the file header.

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SoX supports vox format.

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