Professor B: Are we on ? We 're on . OK .
PhD E: Is it on ?
PhD D: Yeah .
Professor B: Yeah . OK ,
PhD D: One , two u OK .
PhD A: Why is it so cold in here ?
Professor B: so , uh , we haven't sent around the agenda . So , i uh , any agenda items anybody has , wants to talk about , what 's going on ?
Postdoc G: I c I could talk about the meeting .
Grad H: Does everyone has everyone met Don ?
Postdoc G: Yeah .
Professor B: It 's on ?
PhD C: Now , yeah .
PhD D: Yeah .
Grad H: Yeah ? OK .
PhD D: Yeah .
Grad F: Hello .
Professor B: OK , agenda item one ,
PhD D: We went Grad F: Yeah .
Professor B: introduce Don . OK , we did that . Uh PhD A: Well , I had a just a quick question but I know there was discussion of it at a previous meeting that I missed , but just about the the wish list item of getting good quality close - talking mikes on every speaker .
Professor B: OK , so let 's let 's So let 's just do agenda building right now . OK , so let 's talk about that a bit .
PhD A: I mean , that was Professor B: Uh , @ @ tuss close talking mikes , better quality . OK , uh , we can talk about that . You were gonna starting to say something ?
Postdoc G: Well , you you , um , already know about the meeting {comment} that 's coming up and I don't know if if this is appropriate for this . I don't know . I mean , maybe maybe it 's something we should handle outside of the meeting .
Professor B: No , no , that 's OK .
PhD E: What meeting ?
Professor B: We can so we can ta so n NIST is NIST folks are coming by next week
Postdoc G: OK .
Professor B: and so we can talk about that .
Postdoc G: Yeah .
Professor B: I think
PhD E: Who 's coming ?
Professor B: Uh , uh , John Fiscus
Postdoc G: Mm - hmm .
Professor B: and , uh , I think George Doddington will be around as well . Uh , OK , so we can talk about that . Uh , I guess just hear about how things are going with , uh , uh , the transcriptions . That 's right .
Postdoc G: Sure . Mm - hmm .
Professor B: That would sorta be an obvious thing to discuss . Um , An - anything else , uh , strike anybody ?
PhD A: Uh , we started running recognition on one conversation but it 's the r isn't working yet . So , But if anyone has Professor B: OK .
PhD E: Wha
PhD A: uh , the main thing would be if anyone has , um , knowledge about ways to , uh , post - process the wave forms that would give us better recognition , that would be helpful to know about .
Professor B: Um ,
Grad H: Dome yeah , it sounds like a topic of conversation .
Professor B: Yeah , so , uh PhD E: What about , uh , is there anything new with the speech , nonspeech stuff ?
PhD C: Yeah , we 're working more on it but , it 's not finished .
Professor B: OK . Alright , that seems like a a good collection of things . And we 'll undoubtedly think of other things .
Postdoc G: I had thought under my topic that I would mention the , uh , four items that I I , uh , put out for being on the agenda f on that meeting , which includes like the pre - segmentation and the and the developments in multitrans .
Professor B: Oh , under the NIST meeting .
Postdoc G: Yeah , under the NIST thing .
Professor B: OK .
Postdoc G: Yeah .
Professor B: Alright , why don't we start off with this , u u I guess the order we brought them up seems fine .
Postdoc G: Yeah .
Professor B: Um , so , better quality close talking mikes . So the one issue was that the the , uh , lapel mike , uh , isn't as good as you would like . And so , uh , it it 'd be better if we had close talking mikes for everybody . Right ?
PhD A: Ri - um ,
Professor B: Is that is that basically the point ?
PhD A: yeah , the And actually in addition to that , that the the close talking mikes are worn in such a way as to best capture the signal . And the reason here is just that for the people doing work not on microphones but on sort of like dialogue and so forth , uh or and even on prosody , which Don is gonna be working on soon , it adds this extra , you know , vari variable for each speaker to to deal with when the microphones aren't similar .
Professor B: Mm - hmm .
Grad H: Right .
PhD A: So And I also talked to Mari this morning and she also had a strong preference for doing that . And in fact she said that that 's useful for them to know in starting to collect their data too .
Professor B: Mm - hmm . Right , so one th
Grad H: Well , so Professor B: uh , well one thing I was gonna say was that , um , i we could get more , uh , of the head mounted microphones even beyond the number of radio channels we have because I think whether it 's radio or wire is probably second - order . And the main thing is having the microphone close to you ,
PhD A: Mm - hmm .
Professor B: u although , not too close .
Grad H: Right , so , uh , actually the way Jose is wearing his is is c correct .
PhD D: Yeah . Is Grad H: The good way . So you want to Professor B: Yeah .
PhD D: I it 's not cor it 's correct ?
Professor B: Is .
Grad H: Yeah , th that 's good .
Professor B: Yes .
PhD D: Yeah .
Grad H: So it 's towards the corner of your mouth so that breath sounds don't get on it .
PhD D: Yeah . Yeah .
Grad H: And then just sort of about , uh , a thumb or a thumb and a half away from your from your mouth .
PhD D: Yeah . Yeah . Uh , yeah .
Professor B: Right .
PhD A: But we have more than one type of Professor B: How am I d
PhD A: I mean , for instance , you 're PhD C: Yeah .
Grad H: And this one isn't very adjustable ,
PhD D: Yeah .
Grad H: so this about as good as I can get
PhD A: Right .
PhD D: Yeah .
Grad H: cuz it 's a fixed boom .
PhD D: Is fixed . Yeah .
PhD A: But if we could actually standardize , you know , the the microphones , uh , as much as possible that would be really helpful .
Professor B: Yeah .
PhD E: Mm - hmm .
PhD D: Yeah .
Grad H: Mm - hmm .
Professor B: Well , I mean it doesn't hurt to have a few extra microphones around ,
PhD D: Yeah .
Professor B: so why don't we just go out and and get an order of of if this microphone seems OK to people , uh , I 'd just get a half dozen of these things .
Grad H: Well the onl the only problem with that is right now , um , some of the Jimlets aren't working . The little the boxes under the table .
Professor B: Yeah .
Grad H: And so , w Uh , I 've only been able to find three jacks that are working .
Professor B: Yeah .
PhD E: Can we get these , wireless ?
Grad H: So Professor B: No , but my point is PhD A: But y we could just record these signals separately and time align them with the start of the meeting .
Professor B: R r right Grad H: I I 'm not sure I 'm follow . Say that again ?
Professor B: Right now , we 've got , uh , two microphones in the room , that are not quote - unquote standard . So why don't we replace those Grad H: OK , just two .
Professor B: Well , however many we can plug in . You know , if we can plug in three , let 's plug in three .
Grad H: OK .
PhD D: Mm - yeah .
Professor B: Also what we 've talked before about getting another , uh , radio ,
Grad H: Right .
Professor B: and so then that would be , you know , three more .
Grad H: Right . OK .
PhD D: Mm - hmm .
Professor B: So , uh so we should go out to our full complement of whatever we can do , but have them all be the same mike . I think the original reason that it was done the other way was because , it w it was sort of an experimental thing and I don't think anybody knew whether people would rather have more variety or  or , uh , more uniformity ,
PhD A: Right .
Professor B: but @ @ {comment} but uh , sounds sounds fine .
Grad H: Sounds like uniformity wins .
PhD D: Right .
PhD A: Well , for short term research it 's just there 's just so much effort that would have to be done up front n uh ,
Professor B: Yeah .
Grad H: Well PhD A: so yeah , uniformity would be great .
Grad H: Yeah .
PhD E: Is it because You you 're saying the for dialogue purposes , so that means that the transcribers are having trouble with those mikes ? Is that what you mean ?
PhD A: Well Jane would know more about the transcribers .
PhD E: Or ?
Postdoc G: And that 's true . I mean , I we did discuss this . Uh , and and Grad H: Yep . Couple times .
Postdoc G: a couple times , so , um , yeah , the transcribers notice And in fact there 're some where , um ugh well , I mean there 's it 's the double thing . It 's the equipment and also how it 's worn .
PhD A: Right .
Postdoc G: And he 's always they always they just rave about how wonderful Adam 's Adam 's channel is .
Grad H: What can I say .
Postdoc G: And then ,
PhD A: So does the recognizer .
Professor B: Yeah .
Postdoc G: Yeah .
Grad H: Oh , really ? Yeah , I 'm not surprised . I mean , " Baaah ! "
PhD A: Even if if you 're talking on someone else 's mike it 's still you w
Postdoc G: Yeah , but I mean it 's not just that , it 's also you know you
Professor B: Yeah .
PhD C: Yeah .
Postdoc G: It 's also like n no breathing , no You know , it 's like it 's it 's um ,
Professor B: Yeah .
Postdoc G: it 's really {nonvocalsound} it makes a big difference from the transcribers ' point of view
Grad H: Yeah , it 's an advantage when you don't breath .
Postdoc G: and also from the research s point of view .
PhD A: Right .
Professor B: When we 're doing Grad H: Yeah , I think that the point of doing the close talking mike is to get a good quality signal . We 're not doing research on close talking mikes .
Postdoc G: Yeah .
Professor B: Yeah .
Grad H: So we might as well get it as uniform as we can .
PhD A: Right .
Professor B: Now , this is locking the barn door after the horse was stolen . We do have thirty hours , of of speech , which is done this way .
Grad H: Yeah .
PhD A: That 's OK .
Professor B: But but , uh , yeah , for future ones we can get it a bit more uniform .
PhD A: Great , great .
Grad H: So I think just do a field trip at some point .
Professor B: Yeah , probably yeah , to the store we talked about and that Grad H: Yep .
Postdoc G: And there was some talk about , uh , maybe the h headphones that are uncomfortable for people , to Grad H: Yep . So , as as I said , we 'll do a field trip and see if we can get all of the same mike that 's more comfortable than than these things , which I think are horrible .
Postdoc G: OK . Good .
Grad H: So .
PhD A: Great , thank you very much .
PhD E: Especially for people with big heads .
PhD A: It 's makes our job a lot easier .
Professor B: OK . OK .
Grad H: And , you know , we 're researchers , so we all have big heads .
Professor B: OK .
PhD E: Yeah .
Professor B: Yeah . Uh , OK , second item was the , uh , NIST visit , and what 's going on there .
Postdoc G: Yeah . OK , so , um , uh , Jonathan Fiscus is coming on the second of February and I 've spoken with , uh , u u a lot of people here , not everyone . Um , and , um , he expressed an interest in seeing the room and in , um , seeing a demonstration of the modified multitrans , which I 'll mention in a second , and also , um , he was interested in the pre - segmentation and then he 's also interested in the transcription conventions .
Grad H: Mm - hmm .
Postdoc G: And , um So , um , it seems to me in terms of like , um , i i it wou You know , OK . So the room , it 's things like the audio and c and audi audio and acoustic acoustic properties of the room and how it how the recordings are done , and that kind of thing . And , um . OK , in terms of the multi - trans , well that that 's being modified by Dave Gelbart to , uh , handle multi - channel recording .
Grad H: Oh , I should 've I was just thinking I should have invited him to this meeting . I forgot to do it .
Postdoc G: Yeah , OK .
Grad H: So .
PhD C: Yeah .
Postdoc G: Yeah . Well that 's OK , I mean we 'll Grad H: Sorry .
Postdoc G: Yeah , and it 's t and it looks really great . He he has a prototype . I I , uh , @ @ {comment} didn't didn't see it , uh , yesterday but I 'm going to see it today . And , uh , that 's that will enable us to do nice um , tight time marking of the beginning and ending of overlapping segments . At present it 's not possible with limitations of of the , uh , original design of the software . And um . So , I don't know . In terms of , like , pre - segmentation , that that continues to be , um , a terrific asset to the to the transcribers . Do you I know that you 're al also supplementing it further . Do you want to mention something about that c Thilo , or ?
PhD C: Um , yeah . What what I 'm doing right now is I 'm trying to include some information about which channel , uh , there 's some speech in . But that 's not working at the moment . I 'm just trying to do this by comparing energies , uh normalizing energies and comparing energies of the different channels .
Postdoc G: OK .
PhD C: And so to to give the transcribers some information in which channel there 's there 's speech in addition to to the thing we we did now which is just , uh , speech - nonspeech detection on the mixed file . So I 'm I 'm relying on on the segmentation of the mixed file
Postdoc G: This is good . Mm - hmm .
PhD C: but I 'm I 'm trying to subdivide the speech portions into different portions if there is some activity in in different channels .
Postdoc G: Excellent , so this 'd be like w e providing also speaker ID potentially .
PhD C: But Yeah . Yeah .
Postdoc G: Wonderful . Wonderful .
Professor B: Um , something I guess I didn't put in the list but , uh , on that , uh , same day later on in or maybe it 's No , actually it 's this week , uh , Dave Gelbart and I will be , uh , visiting with John Canny who i you know , is a CS professor ,
Postdoc G: Oh .
Professor B: who 's interested in ar in array microphones .
Grad H: HCC . Oh , he 's doing array mikes .
Professor B: Yeah . And so we wanna see what commonality there is here . You know , maybe they 'd wanna stick an array mike here when we 're doing things
PhD E: That would be cool .
Grad H: Yeah , that would be neat .
Professor B: or or maybe it 's it 's not a specific array microphone they want
PhD D: Yeah .
PhD E: That would be really neat .
Professor B: but they might wanna just , uh , you know , you could imagine them taking the four signals from these these table mikes and trying to do something with them Um , I also had a discussion So , w uh , we 'll be over over there talking with him , um , after class on Friday . Um , we 'll let you know what what goes with that . Also had a completely unrelated thing . I had a , uh , discussion today with , uh , Birger Kollmeier who 's a , uh , a German , uh , scientist who 's got a fair sized group doing a range of things . It 's sort of auditory related , largely for hearing aids and so on . But but , uh , he does stuff with auditory models and he 's very interested in directionality , and location , and and , uh , head models and microphone things . And so , uh , he 's he and possibly a student , there w there 's , uh , a student of his who gave a talk here last year , uh , may come here , uh , in the fall for , uh , sort of a five month , uh , sabbatical . So he might be around . Get him to give some talks and so on . But anyway , he might be interested in this stuff .
PhD D: Mm - hmm .
PhD E: That that reminds me , I had a a thought of an interesting project that somebody could try to do with the data from here , either using , you know , the the mikes on the table or using signal energies from the head worn mikes ,
PhD D: Mm - hmm .
PhD E: and that is to try to construct a map of where people were sitting ,
Professor B: Right .
PhD D: Uh - huh .
PhD E: uh , based on Grad H: Well Dan Dan had worked on that . Dan Ellis ,
PhD D: Uh - huh .
PhD E: Oh , did he ? Oh , that 's interesting .
Grad H: yeah . So that that 's the cross - correlation stuff , was was doing b beam - forming .
PhD D: Yeah .
PhD E: And so you could plot out who was sitting next to who
Professor B: A little bit ,
PhD E: and Professor B: I mean , he didn't do a very extreme thing but just it was just sort of
PhD D: Yeah , yeah .
Grad H: No , he did start on it .
Professor B: e e given that , the the the block of wood with the the the two mikes {comment} on either side ,
Grad H: Mm - hmm .
Professor B: if I 'm speaking , or if you 're speaking , or someone over there is speaking , it if you look at cross - correlation functions , you end up with a PhD D: Yeah .
Professor B: if if someone who was on the axis between the two is talking , then you you get a big peak there . And if if someone 's talking on on on , uh , one side or the other , it goes the other way .
PhD E: Mm - hmm .
Professor B: And then , uh , it it it even looks different if th t if the two two people on either side are talking than if one in the middle . It it actually looks somewhat different , so .
PhD E: Hmm . Well I was just thinking , you know , as I was sitting here next to Thilo that um , when he 's talking , my mike probably picks it up better than your guys 's mikes .
PhD C: Yeah .
PhD D: Yeah .
PhD E: So if you just looked at Grad H: Oh , that 's another cl cue ,
PhD D: Yeah .
PhD E: yeah , {comment} looked at {comment} the energy on my mike and you could get an idea about who 's closest to who .
Grad H: that 's true .
PhD D: Yeah .
Professor B: Mm - hmm .
PhD D: Yeah .
Professor B: Right .
PhD D: Yeah .
PhD E: And Grad H: Or who talks the loudest .
PhD C: Yeah .
PhD D: Yeah .
Professor B: Yeah , well you have to the appropriate normalizations are tricky , and and and are probably the key .
Grad H: Yeah .
PhD C: Yeah .
PhD A: You just search for Adam 's voice on each individual microphone , you pretty much know where everybody 's sitting .
PhD C: Yeah .
Professor B: Yeah . We 've switched positions recently so you can't Anyway . OK . So those are just a little couple of news items .
Postdoc G: Can I ask one thing ? Uh , so , um , Jonathan Fiscus expressed an interest in , uh , microphone arrays .
Professor B: Yes .
Postdoc G: Um , is there I mean b And I also want to say , his he can't stay all day . He needs to uh , leave for uh , from here to make a two forty - five flight
Grad H: Oh , so just morning .
Postdoc G: from from Oakland .
Professor B: Right .
Postdoc G: So it makes the scheduling a little bit tight but do you think that , um that , uh , i John Canny should be involved in this somehow or not . I have no idea .
Professor B: Probably not but I I 'll I 'll I 'll know better after I see him this Friday what what kind of level he wants to get involved .
Postdoc G: It 's premature . Fine . Good .
Professor B: Uh , he might be excited to and it might be very appropriate for him to , uh , or he might have no interest whatsoever . I I just really don't know .
Postdoc G: OK .
Grad H: Is he involved in Ach ! {comment} I 'm blanking on the name of the project . NIST has has done a big meeting room instrumented meeting room with video and microphone arrays , and very elaborate software . Is is he the one working on that ?
Professor B: Well that 's what they 're starting up .
Grad H: OK .
Professor B: Yeah . No , I mean , that 's what all this is about . They they haven't done it yet . They wanted to do it Grad H: OK . I had read some papers that looked like they had already done some work .
Professor B: Uh , well I think they 've instrumented a room but I don't think they they haven't started recordings yet . They don't have the t the transcription standards . They don't have the PhD E: Are they going to do video as well ?
Grad H: Hmm .
Professor B: Yeah . I think .
PhD E: Hmm .
Professor B: I think they are .
Grad H: Oh , cuz what what I had read was , uh , they had a uh very large amount of software infrastructure for coordinating all this , both in terms of recording and also live room where you 're interacting the participants are interacting with the computer , and with the video , and lots of other stuff .
Professor B: Well , I 'm I 'm I 'm not sure .
Grad H: So .
Professor B: All all I know is that they 've been talking to me about a project that they 're going to start up recording people meet in meetings .
Grad H: OK . Well Professor B: And , uh , it is related to ours . They were interested in ours . They wanted to get some uniformity with us , uh , about the transcriptions and so on .
Grad H: Alright .
Professor B: And one one notable difference u u actually I can't remember whether they were going to routinely collect video or not , but one one , uh , difference from the audio side was that they are interested in using array mikes . So , um , I mean , I 'll just tell you the party line on that . The reason I didn't go for that here was because , uh , the focus , uh , both of my interest and of Adam 's interest was uh , in impromptu situations . And we 're not recording a bunch of impromptu situations but that 's because it 's different to get data for research than to actually apply it .
PhD D: Hmm .
Professor B: And so , uh , for scientific reasons we thought it was good to instrument this room as we wanted it . But the thing we ultimately wanted to aim at was a situation where you were talking with , uh , one or more other people i uh , in in an p impromptu way , where you didn't didn't actually know what the situation was going to be . And therefore it would not it 'd be highly unlikely that room would be outfitted with with some very carefully designed array of microphones . Um , so it was only for that reason . It was just , you know , yet another piece of research and it seemed like we had enough troubles just PhD E: So there 's no like portable array of mikes ?
Professor B: No . So there 's there 's uh , there 's a whole range of things there 's a whole array of things , that people do on this .
PhD D: Hmm .
Professor B: So , um , the , uh the big arrays , uh , places , uh , like uh , Rutgers , and Brown , and other other places , uh , they have , uh , big arrays with , I don't know , a hundred hundred mikes or something .
Grad H: Xerox .
Professor B: And so there 's a wall of mikes . And you get really , really good beam - forming {comment} with that sort of thing .
PhD E: Wow .
Professor B: And it 's and , um , in fact at one point we had a a proposal in with Rutgers where we were gonna do some of the sort of per channel signal - processing and they were gonna do the multi - channel stuff , but it d it d we ended up not doing it . But PhD E: I 've seen demonstrations of the microphone arrays . It 's amazing how how they can cut out noise .
Professor B: Yeah , it 's r It 's really neat stuff .
Grad H: And then they have little ones too
Professor B: And then they had the little ones , yeah .
Grad H: but I mean but they don't have our block of wood , right ?
Professor B: Yeah , our block of wood is unique .
PhD D: Yeah .
Professor B: But the But the No , there are these commercial things now you can buy that have four mikes or something
PhD A: Mm - hmm .
Professor B: and and , uh , um So , yeah , there 's there 's there 's a range of things that people do .
PhD E: Huh .
Professor B: Um , so if we connected up with somebody who was interested in doing that sort of thing that 's that 's a good thing to do . I mean , whenever I 've described this to other people who are interested on the with the acoustic side that 's invariably the question they ask . Just like someone who is interested in the general dialogue thing will always ask " um , are you recording video ? "
PhD A: Right ,
Professor B: Um , right ?
PhD A: right .
Professor B: And and the acoustic people will always say , " well are you doing , uh , uh , array microphones ? " So it 's it 's a good thing to do , but it doesn't solve the problem of how do you solve things when there 's one mike or at best two mikes in in this imagined PDA that we have . So maybe maybe we 'll do some more of it .
Postdoc G: Well one thing I I mean , I don't know . I mean , I know that having an array of I mean , I would imagine it would be more expensive to have a an array of microphones . But couldn't you kind of approximate the natural sis situation by just shutting off uh , channels when you 're later on ? I mean , it seems like if the microphones don't effect each other then couldn't you just , you know , record them with an array and then just not use all the data ?
Grad H: It 's it 's just a lot of infrastructure that for our particular purpose we felt we didn't need to set up .
Postdoc G: I see .
PhD A: Yeah .
Postdoc G: Fine .
Professor B: Yeah , if ninety - nine percent of what you 're doing is c is shutting off most of the mikes , then going through the Postdoc G: OK .
Professor B: But if you get somebody who 's who who has that as a primary interest then that put then that drives it in that direction .
Grad H: That 's right , I mean if someone if someone came in and said we really want to do it ,
PhD A: Right .
Grad H: I mean , we don't care . That would be fine ,
PhD E: So to save that data you You have to have one channel recording per mike in the array ?
Grad H: Buy more disk space .
Professor B: Well , uh , at some level at some level .
PhD E: Is that Grad H: I usually do a mix .
Professor B: But then , you know , there 's it there 's PhD E: What you save , I mean , if you 're going to do research with it . yeah
Professor B: There 's I I don't know what they 're going to do and I don't know how big their array is . Obviously if you were gonna save all of those channels for later research you 'd use up a lot of space .
PhD E: Yeah .
Professor B: And , th
PhD E: Hmm .
Grad H: Well their software infrastructure had a very elaborate design for plugging in filters , and mixers , and all sorts of processing . So that they can do stuff in real time and not save out each channel individually .
Professor B: Yeah . Yeah .
PhD E: Mmm .
Grad H: So it was , uh PhD D: Yeah .
Professor B: But I mean , uh , for optimum flexibility later you 'd want to save each channel . But I think in practical situations you would have some engine of some sort doing some processing to reduce this to some to the equivalent of a single microphone that was very directional .
PhD E: Uh , oh , OK , I see .
Professor B: Right ?
PhD A: I mean , it seems Professor B: So PhD E: Sort of saving the result of the beam - forming .
PhD D: Yeah .
PhD A: it seems to me that there 's you know , there are good political reasons for for doing this , just getting the data , because there 's a number of sites like right now SRI is probably gonna invest a lot of internal funding into recording meetings also , which is good , um , but they 'll be recording with video and they 'll be You know , it 'd be nice if we can have at least , uh , make use of the data that we 're recording as we go since it 's sort of this is the first site that has really collected these really impromptu meetings , um , and just have this other information available . So , if we can get the investment in just for the infra infrastructure and then , I don't know , save it out or have whoever 's interested save that data out , transfer it there , it 'd be g it 'd be good to have have the recording . I think .
Grad H: You mean to to actually get a microphone array and do that ?
PhD A: Well , if Even if we 're not Grad H: And video and PhD A: I 'm not sure about video . That 's sort of an video has a little different nature since right n right now we 're all being recorded but we 're not being taped . Um , but it definitely in the case of microphone arrays , since if there was a community interested in this , then Grad H: Well , but I think we need a researcher here who 's interested in it . To push it along .
Professor B: See the problem is it it took , uh , uh , it took at least six months for Dan to get together the hardware and the software , and debug stuff in in the microphones , and in the boxes . And it was a really big deal . And so I think we could get a microphone array in here pretty easily and , uh , have it mixed to to one channel of some sort .
PhD A: Mm - hmm .
Professor B: But , e I think for I mean , how we 're gonna decide For for maximum flexibility later you really don't want to end up with just one channel that 's pointed in the direction of the the the p the person with the maximum energy or something like that . I mean , you you want actually to you want actually to have multiple channels being recorded so that you can And to do that , it we 're going to end up greatly increasing the disk space that we use up , we also only have boards that will take up to sixteen channels and in this meeting , we 've got eight people and and six mikes . And there we 're already using fourteen .
Grad H: And we actually only have fifteen .
Professor B: E
Grad H: One of them 's PhD D: Yeah .
Grad H: Details .
PhD A: Mm - hmm .
Professor B: Yeah .
Grad H: But fifteen , not sixteen .
PhD A: Well if there 's a way to say time to sort of solve each of these f those Professor B: Yeah .
PhD A: So suppose you can get an array in because there 's some person at Berkeley who 's interested and has some equipment , uh , and suppose we can as we save it we can , you know , transfer it off to some other place that that holds this this data , who 's interested , and even if ICSI it itself isn't . Um , and it it seems like as long as we can time align the beginning , do we need to mix it with the rest ? I don't know . You know ? The
Professor B: Yeah . So I think you 'd need a separate a separate set up
PhD A: So Yeah .
Professor B: and the assumption that you could time align the two .
PhD A: I mean it 's just it 's worth considering as sort of
Grad H: And y it 'd certainly gets skew .
PhD A: once you make the up front investment {comment} and can sort of save it out each time , and and not have to worry about the disk space factor , then it mi it might be worth having the data .
Professor B: I 'm not so much worried about disk space actually . I mentioned that , b as a practical matter ,
Grad H: Just Professor B: but the real issue is that , uh , there is no way to do a recording extended to what we have now with low skew . So you would have a t completely separate set up ,
PhD A: Right .
Professor B: which would mean that the sampling times and so forth would be all over the place compared to this . So it would depend on the level of pr processing you were doing later , but if you 're d i the kind of person who 's doing array processing you actually care about funny little times . And and so you actually wou would want to have a completely different set up than we have ,
PhD A: I see .
Professor B: one that would go up to thirty - two channels or something .