Although , you know , normally , I mean , the channel goes to four  four thousand. Right ? So , um  And that actually helped , uh  uh , a little bit.
Uh - huh.
Um  and it didn't hurt on the males either. So , um  And I 'm now , uh , trying the  Oh , and suddenly , also the v the vocal tract length normalization only in the test se on the test data. So , you can do vocal tract length normalization on the test data only or on both the training and the test.
Yeah.