What  what I  what I d uh , I do actually , is to take a bunch of  to take a tile on the spectrogram and this tile is five hundred milliseconds long and two hundred hertz wide.
Mmm.
And this tile  Uh , in this tile appears , like , the harmonics if you have a voiced sound , because it 's  it 's the FTT bins. And when you take the m the minima of  of these  this tile , when you don't have speech , these minima will give you some noise level estimate , If you have voiced speech , these minima will still give you some noise estimate because the minima are between the harmonics. And  If you have other  other kind of speech sounds then it 's not the case , but if the time frame is long enough , uh , like s five hundred milliseconds seems to be long enough ,  you still have portions which , uh , are very close  whi which minima are very close to the noise energy.
I 'm confused. You said five hundred milliseconds