downsampling a music in matlab

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Bahareh
Bahareh 2011년 10월 19일
Hello all,
I have a .wav type music and would like to undersample it at 4kHz to view the aliasing effect. Can somebody help me please?
Thanks in advance.

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Daniel Shub
Daniel Shub 2011년 10월 19일
doc downsample
Assuming your music is starting with a sample rate of 44.1 kHz and you are happy with a sampling rate of ~4009.09 Hz (44.1e3/11) then:
y = downsample(x, 11);

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