Assigning time on x axis for audio samples

Hello,

I have audio samples and I know the sampling rate (44.1KHz per sec)) I also have loads of samples of varying lengths(titled calla etc). Is there a way for me to assign time in msec on the x axis in a way that I do not have to customize for each sample length?

Thanks! Sonia

Answer 1

[Wayne King]

You can create a time vector for your longest recording and then use subsets for a particular vector.

If N is the length of the longest:

   Fs = 44.1e3;
   t = 0:1/Fs:(N*1/Fs)-1/Fs;

Then for a particular vector, say x:

   L = length(x);
   tx = t(1:L);

[Sonia Wiemann]

I am very new to matlab so I am very likely doing something wrong. Every time I try to use this code I get a message that says "index exceeds matrix dimensions. maybe I should start with a more basic question.