Command find and convert using ffmpeg

Question

I would like to combine the two following commands to find mp4 files and convert them to mp3 and save them with same name. The two command line:

find ./ -name '*.mp4'
ffmpeg -i video.mp4 -vn -acodec libmp3lame -ac 2 -ab 160k -ar 48000 audio.mp3

Answer 1

With find's -exec functionality:

find ./ -name '*.mp4' -exec bash -c 'ffmpeg -i $0 -vn -acodec libmp3lame -ac 2 \
-ab 160k -ar 48000 ${0/mp4/mp3}' {} \;

This should make xyz.mp4 to xyz.mp3.