How to extract audio from mp4 video file with Matlab?

I have a video file and I want to extract the video and audio into separate objects for writing to disk separately. I know how to deal with the video, but the audio is not so simple, it seems. This does not work, so is there another approach to solving this problem?

>> [input_file, Fs] = audioread('Home_Made_Video.mp4','native');
Error using audioread (line 88)
The file type is not supported 

Any hints would be appreciated.

Answer 1

[Walter Roberson]

https://www.mathworks.com/help/vision/ref/vision.videofilereader-system-object.html

or use audioread without 'native'

https://www.mathworks.com/help/matlab/ref/audioread.html#btiabil-1-filename

provided you are using Windows 7 or later.

You might have to install a codec package; https://www.mathworks.com/matlabcentral/answers/218237-unable-to-determine-the-codec-required#answer_428005

[David Winthrop]

I did try to call audioread without native before adding that option.

I am on linux if it makes any difference.

>> VideoFreader=vision.VideoFileReader('Home_Made_Video.mp4');
Error using vision.VideoFileReader
Invalid input file. 

[David Winthrop]

In case anyone else can't get this to work on MATLAM Linux, here's the fix:

Ditch MATLAB and install ffmpeg.