[Olympus developers 265]: speech level ("volume")

[Gabriel Parent]

Hi,

I'm building a model to have my SDS adapt to the user.  I need the 
"volume" feature: for example, if a user starts speaking louder, there 
might be a bus passing by and thus we need to increase the volume of the 
synthesizer (it's a bad example, anyway you get the point).

Looking into the AudioServer, I found that the GMM VAD updates two 
variables : fNoiseLevel and fSpeechLevel.  I don't understand exactly 
how the GMM VAD works, but it seems it estimates the speech level using 
an histogram.  Would it be safe to use fSpeechLevel as my "volume" 
feature?  I tried going from whispering to shouting, and that value went 
from 9 to 17.  Just want to make sure I'm not making a dumb mistake.

Cheers,
Gabriel