How to extract sound from .MP4 - files

[Lex Luthor]

Hi,

I have files in .MP4 - format and want to extract the sound (is stereo-sound, I think) into WAV format. Does anyone know if there is a tool that can handle this ot if there is any other way ?

Many thanks,

Alex

[UncasMS]

you should give total recorder a try

[setarip]

You might also check the following link:

http://www.winmpg.com/

[Alex123]

Hi, i read topics here and there but couldn't find the answer i look for.
Is there a way how extract (demultiplex) sound track from divx avi-file AS it IS without decompressing into wav whatsoever?

Please , there should be a way how to reassemble sliced mp3 from (audio-video-interlased =avi) file.
thanx for your time. Alex

[Alex123]

Actually the solution is found and it's simple.

In VirtualDub you should set "direct stream copy" in the menu "Audio" and go to "Save WAV..." in the "File" menu.

In a minute you will get wav-file. Simply change its extention to mp3.
~~~~~~~~~~~~~
here is the sourse of this solution (in german):
~~~~~~~~~~~~~~
.....Audio und Video separat speichern
Hierfür wird einfach im Menü "File/Save WAV..." festgelegt, wohin der Audiostream gespeichert werden soll. VirtualDub wird dabei eine Datei mit der Endung WAV erstellen - allerdings bedeutet das nicht, dass es wirklich eine WAV Datei ist. VirtualDub schreibt den Audiostream so in die Datei wie er im Originalvideo war, es wandelt ihn nicht um. Wenn das Original also MP3 Sound hatte, hat auch die neue Audiodatei das MP3 Format. In diesem Fall kann man einfach die Dateiendung von WAV in MP3 umbenennen...

[bond_d9]

winamp5