Assigning time points on X axis

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Sonia Wiemann
Sonia Wiemann 2012-4-16
I have a wav file imported as data points. I know the sampling rate is 44.1kHz per sec. I know that the file contains 18, 873 samples. How can I assign time on the x axis in msec?
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Geoff
Geoff 2012-4-16
http://www.mathworks.com.au/matlabcentral/answers/34874-assigning-time-on-x-axis-for-audio-samples

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Kye Taylor
Kye Taylor 2012-4-17
If your sampling frequency is 44.1 kHz, then one millisecond comprises 44.1 time samples. So, if x represents the vector of 18,873 samples, the following yields integer values on the x-axis representing milliseconds, starting at time zero:
plot((0:length(x)-1)/44.1, x)

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