This is a MATLAB executable (mex) wrapper for Google's WebRTC Voice Activity Detection (VAD) module.
- Download the latest release here
- (Or compile from code)
- Run
make.m
- Run
% Init
mexwebrtcvad('Init');
% Set VAD aggressiveness
vadAggr = 2;
mexwebrtcvad('SetMode', vadAggr);
% set 30ms frame length at 8kHz
frameLen = 240;
sampleRate = 8000;
% Create dummy audio signal (16bit)
numFrames = 100;
audioSignal = int16( (rand(numFrames * frameLen, 1) - 0.5) * (2^15-1) );
% Process frames in loop
for i=1:numFrames
% Process one frame
mvadOut(i) = mexwebrtcvad('Process', sampleRate, audioSignal((i-1)*frameLen+1:i*frameLen), frameLen);
end
% Free VAD
mexwebrtcvad('Free');
Wiseman's Python Interface for WebRTC VAD