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September 24-25 2003M4 meeting Delft1 VUT Brno meeting data collection for M4 Petr Jenderka, Stanislav Sumec, Igor Potůček, Petr Motlíček, Jan Černocký, Pavel Zemčík Brno University of Technology, Czech Republic
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September 24-25 2003M4 meeting Delft2 Goals Provide M4 and follow-ups with more data, complementary to ICSI and IDIAP Different speakers, different accent (heavily accented CZEnglish) Setup of a secondary M4 meeting room: low-cost, mobile, built from off-the-shelve products, easy to install and operate. Plans for meeting recordings Plans for annotations.
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September 24-25 2003M4 meeting Delft3 The rooms IDIAP room very valuable but expensive, difficult to assemble/setup and impossible to bring outside IDIAP Our meeting room: recordings of up to 4 persons 4 lapel mikes, no mike arrays one camera with hyperbolic mirror allowing for almost 360 degree view. audio/video recording on one notebook. Need for cheaper, lighter, and “buyable” room
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September 24-25 2003M4 meeting Delft4 Setup
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September 24-25 2003M4 meeting Delft5 4 people around a mirror
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September 24-25 2003M4 meeting Delft6
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September 24-25 2003M4 meeting Delft7 Original wrapped image
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September 24-25 2003M4 meeting Delft8 Hardware 4 lapel microphones Sennheiser MKE 2 P-C (same as in IDIAP) 2 mixers Behringer EURORACK UB1204-PRO providing gain control and phantom power supply (actually 90% of mixers are not used, but they’re cheaper than special mike pre-amps with phantom feeders…) two Hi-Fi PC-MCIA sound-cards VX-pocket (we know them from the SpeeCon project)
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September 24-25 2003M4 meeting Delft9 Hardware (2) digital camera SONY CLIP 345 hyperbolic mirror by NEOVISION (Prague) FireWire interface The camera provides 2 additional (global) audio channels. The cost: 4.2 kEUR w/o the notebook
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September 24-25 2003M4 meeting Delft10 Recording a home-made (S. Sumec) tool, based on Direct- show libraries, under Windows. post-processing tool (I. Potúček) for unwrapping video to panoramic format of view. All audio and video streams are stored in real time: two audio wav files with four audio channels, one DV-compressed video avi file with video and stereo audio stream. Plan for M4: >30 hours of meetings
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September 24-25 2003M4 meeting Delft11 Unwrapped image
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September 24-25 2003M4 meeting Delft12 Annotations – major meeting events annotations using the „annotation editor“ by Staňa Sumec (audio, video, hotkeys, XML). This annotation will be done internally by pre- and post-grads at UPGM. Plan: >20 hours
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September 24-25 2003M4 meeting Delft13 Annotations - speech ETCA Transcriber with ICSI MultiChannel extension. An annotator hired for speech annotations, just beginning to be operational. Plan: >10 hours of speech annotations. Both annotations: quality check protocols? (quite an issue in our DB projects SpeechDat-E and SpeeCon!)
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September 24-25 2003M4 meeting Delft14 Current work and future Recording, annotations, integration to the Media Server mmm.idiap.ch Still quite some issues to solve (position of the mirror, lighting in the room – what can be done on the resulting video?) Extensions – PowerPoint and Acrobat Reader slide/change timing grabber, T0 must be synced with the recording software … and research with the data (phoneme recognition, mouth area detection, speaker activity detection) – where does the simplified setup degrade performances?
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September 24-25 2003M4 meeting Delft15 Questions, comments ? THE DEMO Please have a look during the break :-)
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