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ffmpegDownmix 2 audio tracks


ffmpeg -i in1.mp3 -i in2.mp3 -filter_complex amix=inputs=2:duration=longest out.mp3ctrl + c
-i in1.mp3

first audio file

-i in2.mp3

second audio file

amix=inputs=2:duration=longest

downmix 2 audio inputs and set the result duruation to the longest track (more mixing options)

out.mp3

resulting mixed audio file