Efficient Representation of Spatial Audio Using Perceptual Parametrization

Christof Faller, Frank Baumgarte

To appear at Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA01), Mohonk Mountain Resort, NY, 21-24 October 2001


We introduce a new scheme for simultaneous placement of a number of sources in auditory space. The scheme is based on an assumption about the relevance of localization cues in different critical bands. Given the sum signal of a number of sources, i.e. a monophonic signal, and a set of parameters (side-information) the scheme is capable of generating a binaural signal by spatially placing the sources contained in the monophonic signal. Potential applications for the scheme are multi-talker desktop conferencing and audio coding. Preliminary experimental results suggest that the listener's ability to identify messages in a multi-talker environment significantly improves by enhancing a monophonic signal with the proposed scheme.

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