how to extract audio from mp4 video

[flannob]

one way is to convert mp4 to mkv with mkvtoolnix and then extract audio with gmkvextract.
but is there a direct way to extract audio from mp4?
thanks

[videobruger]

Demux it with My Mp4Box GUI/YAMB

[JVRaines]

For a raw file:

ffmpeg -i myvideo.mp4 -vn -c:a copy myaudio.aac

For a WAV file:

ffmpeg -i myvideo.mp4 -vn -c:a pcm_s16le myaudio.wav

[pippas]

Pazera -- drag and drop. - convert - done. Free.

[cornemuse]

This is my new computer build & not everything has been installed, yet. I use 'any-video-converter'

http://www.any-video-converter.com/products/for_video_free/

Works pretty good for me, , , ,

-c-

[Budman1]

You should be able to copy both with FFMpeg all in one shot like:

ffmpeg -i  "C:\Users\Name\folder\video.mp4" -acodec copy -vcodec copy "C:\Users\Name\folder\video.mkv" -vn -acodec copy "C:\Users\Name\folder\Video.aac"