Yeah. But the Guenter 's argument is slightly different. It 's , like , ev even  even if I use a channel zero VAD , I 'm just averaging the   the s power spectrum. But the Guenter 's argument is , like , if it is a non - stationary  segment , then he doesn't update the noise spectrum. So he 's , like  he tries to capture only the stationary part in it. So the averaging is , like ,  different from  updating the noise spectrum only during stationary segments. So , th the Guenter was arguing that , I mean , even if you have a very good VAD , averaging it , like , over the whole thing is not a good idea.
I see.
Because you 're averaging the stationary and the non - stationary , and finally you end up getting something which is not really the s because , you  anyway , you can't remove the stationary part fr I mean , non - stationary part from  the signal.
Not using these methods anyway. Yeah.