alternate two wav files into 1 single one using sox and bash

StackOverflow https://stackoverflow.com/questions/8440239

  •  11-03-2021
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Question

I'm using linux and bash I have two files filea.wav and fileb.wav which are both 1 second long. I would like to join 4000 of them so I will get 1 large file that is an hour long that has the two files alternating.

Example: of what the 1 hour single file would look like filea.wav fileb.wav filea.wav fileb.wav filea.wav fileb.wav .....

I know I can use sox to create and repeat a file

sox filea.wav file1hour.wav repeat 4000

but how can I have it so two files alternate back and forth and still get 1 single file using sox?

Was it helpful?

Solution 

sox filea.wav fileb.wav long.wav
sox long.wav file1hour.wav repeat 1800
rm long.wav

More details on how to use sox(1): http://sox.sourceforge.net/sox.html

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