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ICASSP
2010
IEEE

Energy-based multi-speaker voice activity detection with an ad hoc microphone array

9 years 11 months ago
Energy-based multi-speaker voice activity detection with an ad hoc microphone array
In this paper, we propose an energy-based technique to track the power of multiple simultaneous speakers using an ad hoc microphone array with unknown microphone positions. By considering the short-term power of the microphone signals, the problem can be converted into a non-negative blind source separation (NBSS) problem. By exploiting the prior knowledge that the source signals are non-negative and well-grounded, very efficient algorithms can be used to solve this NBSS problem, based only on second order statistics. We provide simulation results that demonstrate the effectiveness of the presented algorithm.
Alexander Bertrand, Marc Moonen
Added 11 Feb 2011
Updated 11 Feb 2011
Type Journal
Year 2010
Where ICASSP
Authors Alexander Bertrand, Marc Moonen
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