Mm - hmm.
right ? So  so  Um. So , um , if you knew you were doing that , if you were doing something say for a  a , uh  a  a Vocoder , you wouldn't use the same kind of features. You would use something that was sensitive to the periodicity and  and not just the envelope. Uh , and so in that sense it was an unfair test. Um , so I think that the questioner was right. It  it was in that sense an unfair test. Nonetheless , it was one that was interesting because , uh , this is what we are actually using for speech recognition , these smooth envelopes. And this says that perhaps even , you know , trying to use them in the best way that we can , that  that  that we ordinarily do , with , you know , Gaussian mixtures and H M Ms  and so forth , you  you don't , uh , actually do that well on determining whether something is sonorant or not.
Didn't they
Which means you 're gonna make errors between similar sounds that are son sonorant or obstruent.