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Finding energy of speech signal

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jack star
jack star am 12 Apr. 2016
Bearbeitet: Baltam am 12 Apr. 2016
Hi all. I have speech signal, and I divided it into frames with 150 samples. How can I calculate the energy of each frame? I'm trying to decide which frame is voiced or unvoiced. by looking their energy.

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Baltam
Baltam am 12 Apr. 2016
Bearbeitet: Baltam am 12 Apr. 2016
You could take the rms value of all columns of x. After that, define your own threshold to determine what is speech and what isn't.
x_rms = rms(x,1); % this gives a row with the root mean square values of the collumns/frames.
Kind regards, Baltam

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