Speech Acquisition in Meetings with an Audio-Visual Sensor Array
| Type of publication: | Conference paper |
| Citation: | hari-rr-05-03b |
| Booktitle: | Pro. IEEE ICME |
| Year: | 2005 |
| Note: | IDIAP-RR 05-03 |
| Crossref: | hari-rr-05-03: |
| Abstract: | Close-talk headset microphones have been traditionally used for speech acquisition in a number of applications, as they naturally provide a higher signal-to-noise ratio -needed for recognition tasks- than single distant microphones. However, in multi-party conversational settings like meetings, microphone arrays represent an important alternative to close-talking microphones, as they allow for localisation and tracking of speakers and signal-independent enhancement, while providing a non-intrusive, hands-free operation mode. In this article, we investigate the joint use of a small table-top microphone array and a camera array for speaker tracking and speech enhancement in meetings. Our methodology first fuses audio and video for person tracking, and then integrates the output of the tracker with a beamformer for speech enhancement. We compare and discuss the features of the resulting speech signal with respect to that obtained from single close-talking and table-top microphones. |
| Userfields: | ipdmembership={speech}, |
| Keywords: | |
| Projects |
Idiap |
| Authors | |
| Added by: | [UNK] |
| Total mark: | 0 |
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