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Voice Activity Detection by Spectral Energy

version (3 KB) by Yi-Wen Chen
End Point Detection


Updated 01 Apr 2019

GitHub view license on GitHub

1. Speech activity detection (VAD) by spectral energy.
2. Return end points of their sample index.


Tutorial and Contact

Cite As

Yi-Wen Chen (2020). Voice Activity Detection by Spectral Energy (, GitHub. Retrieved .

Comments and Ratings (6)

Taehyun Kim

Can you help me to solve some problems with this? I send an email to you yesterday regarding this! Thanks.

Yi-Wen Chen

@shivani yadav, Please send the audio file to me and then I can take a look. (

fs=4000; [activeNum, pos] = vad_YW(x,4000,1,.1,2,300);
it is giving the error: Subscript indices must either be real positive integers or logicals.
Can you please help with this?

Luis Reyes

1 12


Update tutorial link

MATLAB Release Compatibility
Created with R2011b
Compatible with any release
Platform Compatibility
Windows macOS Linux