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What is a channel exactly in [a,fs] = audioread(file)?

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Axel Blaze
Axel Blaze on 6 May 2022
Closed: dpb on 2 Sep 2022
This question was flagged by dpb
Basically the title.
I inserted a 3 min audio file and it gave fs=48000 and a 11084678x2 matrix.
Apparently the 2 columns represents the channels in the audio? What exactly does that mean?
And also what exactly are the values in the 2x2 matrix and why exactly are they stored as a "double"? Would love to hear any explanation.
Rik on 9 May 2022
@dpb, given that this is a duplicate, shouldn't it be closed as such?

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