Mm - hmm.
So I was adding a white noise energy , uh , that 's fifteen DB below the maximum energy of the utterance. And  Yeah. When we look at  at the , um , MFCC that result from this , they are  a lot more smoother. Um , when we compare , like , a channel zero and channel one utterance  um , so a clean and , uh , the same noisy utterance  well , there is almost no difference between the cepstral coefficients of the two.
Hmm.
Um. And  Yeah. And the result that we have in term of speech recognition , actually it 's not  it 's not worse , it 's not better neither , but it 's , um , kind of surprising that it 's not worse