And I  I found that eh another thing. When eh  eh I w I   I was eh look at eh nnn , the difference speech file , um , for example , eh if eh we use the ehm  the mixed file , to  to transcribe , the  the events and the words , I  I saw that eh the eh speech signal , collected by the eh this kind of mike  eh of this kind of mike , eh are different from the eh mixed signal eh , we eh  collected by headphone.
Yep.
And  It 's right.
Yeah.