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More => Old Versions => Media Center 15 (Development Ended) => Topic started by: grandlulu on June 03, 2010, 10:43:30 am

Title: Extract audio in video file
Post by: grandlulu on June 03, 2010, 10:43:30 am

Hi there,

As it's possible with audio file to convert file type to another, i'd like to convert, extract audio stream within mpg for example to mp3...
I'm afraid i can't, am i wrong ?

Sincerely,
GrandLuLu

Title: Re: Extract audio in video file
Post by: Matt on June 03, 2010, 11:43:46 am

With v15, you could enable 'Disk Writer' then watch the movie with Options > Video > Audio for Video, DVD, & Television > Playback device: Same as device used in audio playback" enabled.

It will only operate in real-time, but it should get the job done.

Title: Re: Extract audio in video file
Post by: Yaobing on June 03, 2010, 03:02:02 pm

There is another round-about way.  I am not sure it will work with all video types, but it definitely worked for me with an mpg video, and should work with most videos that are played in DirectShow.

1. Make a copy of the video, and rename it with an audio extension, such as mpa.

2. Import it into MC.  
2a. Most likely, it will still be imported as video.  Change Media Type from Video or whatever it is to Audio inside MC.
2b. Make sure the file type (mpa in my example) is played in JRiver audio engine (using DirectShow filters).  This is important, as mpa type is normally lumped together with mp3 type, which is played in JRiver audio engine (using plugins).
2c. Make sure Source Filter selection is set to Automatic for the type (mpa) as your normal selection of Source Filter for the type may not be able to handle the "fake" audio file.

3. Tools > Advanced Tools > Convert Format... to convert it to, say mp3.

Now you have an mp3 file of the audio track of the original video.

Title: Re: Extract audio in video file
Post by: grandlulu on June 04, 2010, 04:03:39 am

Hi guys & particular Yaobing because i like your convertion method.
So i try it with for testing Editors, Munich song (studio version http://www.youtube.com/watch?v=5xRVm-JX5Rk (http://www.youtube.com/watch?v=5xRVm-JX5Rk) & acoustic REM tribute http://www.youtube.com/watch#!v=2O6mbEFBZYQ&feature=related (http://www.youtube.com/watch#!v=2O6mbEFBZYQ&feature=related)), i'm fan for weeks...
I changed my mpeg file type options otherwise it didn't work.
Now it works with a little surprise, just a bit long time convertion for this song : 5 minutes but the source file weighs 50 Mo then certainly normal.
Sincerely yours,
GrandLuLu