How to extract audio from MP4?
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I used R2013a version. can i extract audio from MP4 video files?
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Hengameh Noshahri
2020 年 10 月 26 日
編集済み: Hengameh Noshahri
2020 年 11 月 29 日
Try this:
[y,Fs] = audioread(filename);
audiowrite('outputfile.WAV',y,Fs);
File formats of .avi and .MOV are not mentioned among the accepted input file formats of audioread's documentation ( https://www.mathworks.com/help/matlab/ref/audioread.html#btiabil-1-dataType ), but I tried them in R2020 and they work with this code.
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David Winthrop
2020 年 11 月 29 日
This does not work in r2018a:
>> [input_file, Fs] = audioread('2020-11-28 13-44-42.mp4','native');
Error using audioread (line 88)
The file type is not supported
Walter Roberson
2020 年 11 月 29 日
R2018a documents .mp4 support; https://www.mathworks.com/help/releases/R2018a/matlab/ref/audioread.html -- though you might need to install a codec package .
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