adding repeated background audio with ffmpeg [closed]

Answer 1

I ran into the same problem and managed to do it by using ffmpeg and concat[enate] filter. Here is an example of how to loop it three times:

ffmpeg -i audio.wav -filter_complex "[0:a]afifo[a0];[0:a]afifo[a1];[0:a]afifo[a2];[a0][a1][a2]concat=n=3:v=0:a=1[a]" -map "[a]" out.wav