Issues with voice activity detection

dgube1
Posts: 6
Joined: Fri Aug 10, 2018 5:41 am

Issues with voice activity detection

Postby dgube1 » Wed Jan 09, 2019 8:35 pm

Experiencing issues with calls to the function vad_process. Application runs fine until function is called resulting in a stack overflow and not sure how trouble shoot due to the source being precompiled binaries. Usage follows the simple example case outlined in the header file but have not had success.

Have any other users had more success in using this library and getting voice activity detection on the esp to work, or can anyone from Espressif provide some insight into usage or when more support will be added for this library and functionality?

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krzychb
Posts: 225
Joined: Sat Oct 01, 2016 9:05 am
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Re: Issues with voice activity detection

Postby krzychb » Wed Jan 09, 2019 10:14 pm

Hi dgube1,

VAD example is prepared and currently in review for release in esp-adf repository.

mgsscorr1
Posts: 6
Joined: Wed Aug 22, 2018 7:27 pm

Re: Issues with voice activity detection

Postby mgsscorr1 » Thu Feb 07, 2019 4:46 pm

Hello krzychb,

While attempting to run the VAD example, it has come to my conclusion that the "Voice" activity detector fires with any and ever sound that occurs.

Through testing of every single combination of the following settings VAD_MODE_#, VAD_SAMPLE_RATE_HZ, VAD_FRAME_LENGTH_MS
Nothing seems to solve the issue.

Are there any plans to have the VAD up and running properly or more efficiently?

jason.mao
Posts: 25
Joined: Mon Nov 19, 2018 2:05 am

Re: Issues with voice activity detection

Postby jason.mao » Wed Feb 20, 2019 11:42 am

Hi mgsscorr1

The VAD algorithm is detect the amplitude of voice relative to noise , if the noise is drastic change, it can be trigger the VAD, e.g. Tap on a table.

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