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AV16.3

Lathoud, Guillaume; Odobez, Jean-Marc; Gatica-Perez, Daniel

Description

The AV16.3 corpus is an audio-visual corpus of 43 real indoor multispeaker recordings, designed to test algorithms for audio-only, video-only and audio-visual speaker localization and tracking. Real human speakers were used. The variety of recordings was chosen to test algorithms to their limits, and to cover a wide range of applicative scenarii (meetings, surveillance). The emphasis is on overlapped speech and multiple moving speakers. Recordings include mostly dynamic scenarii, with single and multiple moving speakers. A few meeting scenarii, with mostly seated speakers, are also included.

 

Technical details

Recordings were made with two 8-microphone Uniform Circular Arrays (16 kHz sampling frequency) and three digital cameras (25 frames per second) around the meeting room, hence the "AV16.3" name. Whenever possible, lapel microphones were also worn by each speaker. All sensors were synchronized. Thus, the three cameras were calibrated and used to determine the ground-truth 3-D location of the mouth of each speaker, with a maximum error of 1.2 cm. To the best of our knowledge, this audio-visual annotated corpus was the first to be made publicly available (recorded in fall 2003, published in June 2004 at the MLMI'04 workshop).

 

Acknowledgement

"AV16.3: an Audio-Visual Corpus for Speaker Localization and Tracking",
by Guillaume Lathoud, Jean-Marc Odobez and Daniel Gatica-Perez,
in Proceedings of the MLMI'04 Workshop, 2004.

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