[FFmpeg-user] Help with extracting audio from MP4

[Peter]

On Thursday, 19 January 2017 5:07:32 PM AEDT terje wrote:
> I would have tried:
> 
> video out (alone):
> 
> ffmpeg -i infile.mp4 -an -vcodec copy video.mp4
> 
> audio out (alone):
> 
> ffmpeg -i dv_infile.mp4 -vn -acodec copy audio.aac

Thanks Terje. How do I modify this one ..

ffmpeg -i dv_infile.mp4 -vn -acodec copy audio.aac

so that the output is mp3 please ?

Peter