Reverberation-Robust Online Multi-Speaker Tracking by Using a Microphone Array and CASA Processing
Conference: IWAENC 2012 - International Workshop on Acoustic Signal Enhancement
09/04/2012 - 09/06/2012 at Aachen, Germany
Proceedings: IWAENC 2012
Pages: 4Language: englishTyp: PDF
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Authors:
Plinge, Axel; Hennecke, Marius H.; Fink, Gernot A. (Department of Computer Science, TU Dortmund University, Dortmund, Germany)
Abstract:
Online tracking of speakers is an important task for applications in smart environments such as camera control, meeting annotation and speech separation. Challenges for an audio-only system are small-room reverberation, noise, the unknown number of speakers, and gaps occurring in natural speech. Combining models from neurobiology and cognitive psychology with many-channel signal processing and pattern recognition techniques, a hybrid method was developed. By employing online CASA processing to signals from a microphone array, the real-time capable method is able to track an arbitrary number of concurrent moving speakers in highly reverberant environments. Index Terms — microphone array, auditory scene analysis, glimpsing model, speaker tracking