unable to extract audio from MP4 video file

i'm using R2015a. using the following, i receive error.

>> [y,Fs] = audioread('trialvideo.mp4')

Error using audioread (line 88)

Failed to initialize internal resources.

is there any other way to only extract audio from a MP4 video please?

thanks.

Answer 1

[Walter Roberson]

If you happen to have the DSP Toolbox, then you could use dsp.AudioFileReader https://www.mathworks.com/help/dsp/ref/dsp.audiofilereader-system-object.html

[Yi]

Thanks Walter. but does dsp.AudioFileReader reads video files? it doesn't mention reading video formats...

[Walter Roberson]

I just checked the R2015a documentation. dsp.AudioFileReader at the time was explicitly documented as handling

• MP3
• M4a
• MP4
• WAV
• FLAC
• OGG