merging mp3 files with sox

To merge multiple mp3 files into one, use sox like this:

sox –combine sequence input1.mp3 input2.mp3 … output.wav

I’m outputing to wav because if you try to output to mp3, you get

SoX was compiled without MP3 encoding support

which is already reported as bug #223783

Afterwards, to convert from wav to mp3, use lame:

lame input.wav output.mp3

or, to set output to mono, 48kbps, 44.1kHz, VBR:

lame -v -m m -B 48 -s 44.1 input.wav output.mp3

~ by azimout on January 31, 2009.

Posted in Uncategorized

6 Responses to “merging mp3 files with sox”

  1. Hi, Sorry for my english.
    Excelent post,
    I´m looking for that,
    But It do not work on windows say:
    sox formats: no handler for file extension ‘mp3′

    I’m reading the docs and it say:

    SoX cannot be distributed with MP3 support.

    Do you can help me.

    I need it.

    thanks.

    jeison said this on March 9, 2009 at 5:08 pm | Reply

  2. jeison, looking at the description of sox (through “aptitude show sox”) I can see:

    SoX is able to handle formats like Ogg Vorbis, MP3, WAV, AIFF, VOC, SND, AU, GSM and several more. Any format support requires at least libsox-fmt-base. Some formats have their own package e.g. mp3 read support is provided by libsox-fmt-mp3.

    Have you installed libsox-fmt-mp3 ???

    azimout said this on March 9, 2009 at 5:19 pm | Reply

  3. for those who want mp3 support for sox in windows.
    mail me. I have a build. same issue here also output as wav

    santhosh said this on July 3, 2009 at 6:08 am | Reply

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