[Speex-dev] Voice Activation Level (speex

Tom Grandgent tgrand at canvaslink.com
Thu Mar 2 09:48:56 PST 2006


It's purely empirical, but I've found that values in the range 
of 0.001 to 0.002 tend to offer a nice tradeoff between rejecting 
unwanted sounds and picking up all legitimate speech.  I use a 
default of 0.0015 in my program and it seems to work well.  For 
bounds of the GUI slider, I use 0.00005 and 0.01.

Sorry, but I don't know how these values translate to dB or any 
other standard measurement.  You would have to relate them to 
my code from before.


"Alex Bakaev" <Alex.Bakaev at citrix.com> wrote:
> Tom,
> >I finally switched to a very simple power threshold
> check and all of my problems went away.  It worked far
> better than 
> what are the threshold values you key off of?
> Thanks,
> Alex 
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