How to get the length of a time vector in seconds?

Question

I load an audio file and get sample and sampleRate with

[sample, sampleRate] = audioread(audiofile);

I want to get the length of the audio in seconds, how do I proceed?

Answer 1

Having the sampleRate, the inverse of it is the sampling time.

Ts=1/sampleRate;

So the time vector for your sampled data would be

time=(0:(length(sample)-1))*Ts;