How to combine two mp3 files into one that will play simultaneously using Bash?

Asked Feb 04 '18 at 13:09

Active Feb 04 '18 at 13:09

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I have two mp3 files of the same format (frequency, bitrate, etc) and of the same length. They are called: drums-track.mp3 and piano-track.mp3.

I need to merge these files into one that will play simultaneously. I can't use music programs because I have a lot of such file that to be processed.

I tried to combine them with cat and play it:

$ cat drums-track.mp3 > combined.mp3
$ cat piano-track.mp3 >> combined.mp3

$ mpg123 combined.mp3
...
This was a Frankenstein track.
[0:12] Decoding of combined.mp3 finished.

It plays not simultaneously but right one after another and tells me that it is a Frankenstein track :)

asked Feb 04 '18 at 13:09

JavaRunner

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`mpg123 drums-track.mp3 & mpg123 piano-track.mp3`? – Cyrus Feb 04 '18 at 13:18
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Possible duplicate of [How to overlay two audio files using ffmpeg](https://stackoverflow.com/questions/14498539/how-to-overlay-two-audio-files-using-ffmpeg) – D'Arcy Nader Feb 04 '18 at 13:39
@D'ArcyNader, thanks a lot! That's exactly what I need. – JavaRunner Feb 04 '18 at 14:20

How to combine two mp3 files into one that will play simultaneously using Bash?

0 Answers0