how can i get a wave file of a particular duration
1 view (last 30 days)
Show older comments
Actually i got a .wave file of some duration but i need a particular portion of that .wave file.i used wavsurfer software but its not working.i need a .wav file ranging from 2.9sec to 3.4sec can anybody pls help me with matlab code??
0 Comments
Answers (1)
Jan
on 13 Jun 2013
Edited: Jan
on 16 Jun 2013
When you know the frequency of the signal, you can specify the wanted part in the inputs:
[y, Fs] = wavread(filename, [N1, N2])
Or the modern version in new Matlab versions:
[y,Fs] = audioread(filename, [N1, N2])
Without knowing the frequency, you can either import the whole signal and cut it afterwards, or obtain the frequency:
info = audioinfo(filename);
Fs = info.SampleRate;
Signal = audioread(filename, round([2.9, 3.4] * Fs)); % [EDITED, typo]
4 Comments
Walter Roberson
on 14 Jun 2013
Do you see above where Jan did the wavread() ? The second output, Fs, is the sampling frequency. You can also get it without reading the file by using wavinfo() (older) or audioinfo() (newer)
See Also
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!