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2000
IEEE

Selective Signal Cancellation for Multiple-Listener Audio Applications: An Information Theory Approach

8 years 10 months ago
Selective Signal Cancellation for Multiple-Listener Audio Applications: An Information Theory Approach
Selectively canceling signals at specific locations within an acoustical environment with multiple listeners is of significant importance for home theater, teleconferencing, office, industrial and other applications. The traditional noise cancellation approach is impractical for such applications because it requires sensors that must be placed on the listeners. In this paper we propose an alternative method to minimize signal power in a given location and maximize signal power in another location of interest. A key advantage of this approach would be the need to eliminate sensors. We investigate the use of an information theoretic criterion known as mutual information to design filter coefficients that selectively cancel a signal in one audio channel, and transmit it in another (complementary) channel. Our results show an improvement in power gain at one location in the room relative to the other.
Sunil Bharitkar, Chris Kyriakakis
Added 31 Jul 2010
Updated 31 Jul 2010
Type Conference
Year 2000
Where ICMCS
Authors Sunil Bharitkar, Chris Kyriakakis
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