Speech onset from audio, wav file

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Alice
Alice le 13 Mar 2018
Réponse apportée : Abhishek Ballaney le 13 Mar 2018
Hi, is it possible to use amplitudes to mark when someone started speaking? I have wav files and I have extracted amplitudes and times but I'm not sure how I would check for a change in amplitude from 0 that would correspond to speech onset (or any sound trigger).
Any help would be greatly appreciated.
Thanks.

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Abhishek Ballaney
Abhishek Ballaney le 13 Mar 2018
Try find(x>0) & use 1st index

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