Yeah. OK.
Well , actually if I don't  maybe don't want to work too much of  on it right now. I just wanted to  to see if it 's   what I observed was the re was caused by this  this VAD problem.
Mm - hmm.
And it seems to be the case. Um. Uh , the second thing is the  this spectral subtraction. Um. Um , which I 've just started yesterday to launch a bunch of , uh ,  twenty - five experiments , uh , with different , uh , values for the parameters that are used. So , it 's the Makhoul - type spectral subtraction which use  an over - estimation factor. So , we substr I subtract more ,   um ,   noise than the noise spectra that  is estimated  on the noise portion of the s uh , the utterances. So I tried several , uh , over - estimation factors. And after subtraction , I also add  a constant noise , and I also try different , uh ,  noise , uh , values and we 'll see what happen.