plot a discrete signal
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[x,fs2,nbits2]= wavread('w.wav');
stem(x);
I want to plot a 20 samples section of x.
采纳的回答
stem(x(1:20))
will plot the first 20 samples of x, assuming it has that many. Or
stem(x(345:364))
etc, to plot some other arbitrary section of 20 samples.
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