Concatenate two audio files

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SBakc
SBakc 2019-8-17
评论： Walter Roberson 2019-8-19
I would like to concatenate two audio files such that a new audio signal is created whereby the first audio plays and this is then immedialely followed by the second.
[y1,Fs] = audioread('sample1.wav');
y1_sample_rate = 8000;
[y2,Fs] = audioread('sample2.wav');
y3 = [y1(1:y1_sample_rate,:); y2;];
What am I doing wrong?
Thank you.
  1 个评论
Walter Roberson
Walter Roberson 2019-8-19
We as outside observers have no reason to expect that the two audios will be at the same rate. You should be using resample() to bring them to a common rate.
We as outside observers also have no reason to expect that the two audios will have the same number of channels.

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采纳的回答

Adam Danz
Adam Danz 2019-8-17
编辑：Adam Danz 2019-8-19
If your intentions are to subsample every 8000 values in y1 and then concatenate y2 to the end,
y3 = [y1(1:y1_sample_rate:numel(y1)); y2];
% |________| ^ no need for semicolon

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