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false
Yeah.
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Yeah , but that 's that 's OK , cuz they 're they 're , you know , they 're focused on the ear anyway.
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Right.
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And then and then
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Hmm.
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the hack to preserve the overlaps better would be one which creates different output files for each channel ,
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Right.
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which then would also serve Liz 's request of having , you know , a single channel , separable , uh , cleanly , easily separable ,
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Mm - hmm.
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uh , transcript tied to a single channel , uh , audio.
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Mm - hmm. Have , uh , folks from NIST been in contact with you ?
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Not directly. I 'm trying to think if if I could have gotten it over a list.
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OK.
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I don't I don't think so.
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OK. Well , holidays may have interrupted things , cuz in in in They seem to want to get absolutely clear on standards for transcription standards and so forth with with us.
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Oh ! This was from before December. Yeah.
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Right. Because they 're they 're presumably going to start recording next month.
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OK. OK.
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Oh , we should definitely get with them then ,
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So.
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and agree upon a format. Though I don't remember email on that. So was I not in the loop on that ?
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Um. Yeah , I don't think I mailed anybody. I just think I told them to contact Jane that , uh , if they had a
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false
Oh , OK.
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That 's right.
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if , uh that that , uh , as the point person on it.
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Yeah , I think that 's right.
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But
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Just , uh
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So , yeah. Maybe I 'll , uh , ping them a little bit about it to get that straight.
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OK. I 'm keeping the conventions absolutely as simple as possible.
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Yeah. So is it cuz with any luck there 'll actually be a a there 'll be collections at Columbia , collections at at UW I mean Dan Dan is very interested in doing some other things ,
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Right.
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Yeah. Yeah.
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Well , I think it 's important both for the notation and the machine representation to be the same.
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and collections at NIST. So Yeah.
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So.
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N there was also this , uh , email from Dan regarding the speech - non nonspeech segmentation thing.
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Yep.
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Yeah.
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Yeah.
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I don't know if , uh , uh , we wanna , uh and Dan Gel - and Dave Gelbart is interested in pursuing the aspect of using amplitude as a a a as a basis for the separation.
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Cross - correlation.
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Oh , yeah. He was talking he was talking I mean , uh , we he had
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Cross
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Yeah , cross - correlation.
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Cross
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I had mentioned this a couple times before , the c the commercial devices that do , uh , uh , voice , uh you know , active miking ,
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Uh - huh.
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basically look at the amp at the energy at each of the mikes. And and you basically compare the energy here to some function of all of the mikes.
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Yeah.
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Yeah.
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OK.
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So , by doing that , you know , rather than setting any , uh , absolute threshold , you actually can do pretty good , uh , selection of who who 's talking.
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OK.
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Uh And those those systems work very well , by the way , I mean , so people use them in panel discussions and so forth with sound reinforcement differing in in sort of ,
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Uh - huh.
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uh and , uh , those if Boy , the guy I knew who built them , built them like twenty twenty years ago ,
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Hmm.
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so they 're it 's the the techniques work pretty well.
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Fantastic. Cuz there is one thing that we don't have right now and that is the automatic , um , channel identifier.
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So.
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That that , you know , that would g help in terms of encoding of overlaps.
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Mm - hmm.
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The the transcribers would have less , uh , disentangling to do if that were available.
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Yeah. So I think , you know , basically you can look at some p you have to play around a little bit , uh , to figure out what the right statistic is ,
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But.
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Mm - hmm.
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Mm - hmm.
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but you compare each microphone to some statistic based on the on the overall
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Yeah.
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Mm - hmm.
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OK.
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Uh , and we also have these we have the advantage of having distant mikes too. So that , you cou yo
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Yeah , although the the using the close - talking I think would be much better. Wouldn't it ?
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Yeah.
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Um. I I don't know.
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Yeah.
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I just it 'd be If I was actually working on it , I 'd sit there and and play around with it , and and get a feeling for it. I mean , the the the , uh But , uh , you certainly wanna use the close - talking , as a at least.
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Right.
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I don't know if the other would would add some other helpful dimension or not.
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Mm - hmm.
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Mm - hmm. OK. What what are the different , uh , classes to to code , uh , the the overlap , you will use ?
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Um , to code d
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What you you
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so types of overlap ?
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Yeah.
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Um , so at a meeting that wasn't transcribed , we worked up a a typology.
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Yeah.
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And , um
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Look like , uh , you t you explaining in the blackboard ? The ? Yeah ? Yeah.
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Yes , exactly. That hasn't changed. So it i the it 's basically a two - tiered structure where the first one is whether the person who 's interrupted continues or not. And then below that there 're subcategories , uh , that have more to do with , you know , is it , uh , simply backchannel
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Mm - hmm.
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or is it , um , someone completing someone else 's thought , or is it someone in introducing a new thought.
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Right. And I hope that if we do a forced alignment with the close - talking mike , that will be enough to recover at least some of the time the time information of when the overlap occurred.
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Huh. Yeah. Yeah.
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Mm - hmm. Well , one would
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We hope.
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Yeah. Who knows ?
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That 'd be that 'd be nice. I mean , I I I I 've
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So who 's gonna do that ? Who 's gonna do forced alignment ?
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