Speech onset from audio, wav file

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Alice
Alice 2018-3-13
回答： Abhishek Ballaney 2018-3-13
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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回答（1 个）

Abhishek Ballaney
Abhishek Ballaney 2018-3-13
Try find(x>0) & use 1st index

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