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TOPIC: Voice activated detection (VAD) parameter settings

Voice activated detection (VAD) parameter settings 2 years 5 months ago #39034

  • YukChow
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I am testing a uma-8 v1 for my voice-based chatbot.
The default setting of the VAD parameters on the board booted up are given in below (also see the attachment vad_settings.png)

VAD Detect Time: 25000
VAD Timeout: 2000
VAD Threshold Enter: 2
VAD Threshold Exit: 50

Can anyone provide some guideline on setting these parameters? For my application, only some short utterances are needed.

Also, in the uma-8 user manual indicates that the default value of VAD Detect Time is 2 samples which equivalent to the attack time before VAD is enabled. What is this mean? Please advise, thanks.

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