Extract 30 ms frame from a voiced part of the speech file

Hi

I have speech file with "wav" file extension. I can read the wav file and listen to it, and now i want to extract the 30ms of voice part of it I'm new to matlab and DSP could you please give me suggestion how to do that

Thanks

Answer 1

[Wayne King]

It depends on whether you trying to automatically detect a voiced part, or whether simply listening and identifying it (much easier).

If it's the latter, then just extract the relevant portion of the vector. Identify a range of indices in the vector that contain the voiced part (a vowel) and then assign that to a new vector.

[asdasd]

It should detect the voice part automatically. What do you suggest for this situation?