Multizone 2D Soundfield Reproduction via Spatial Band Stop Filters
Date
2009
Authors
Wu, Yan (Jennifer)
Abhayapala, Thushara
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Institute of Electrical and Electronics Engineers (IEEE Inc)
Abstract
Any attempt to create multiple independent soundfields in separate zones over an extended region of open space results in unintended interference in a given zones from other zones. In this paper, we design spatial band stop filters to suppress interzone interference in the regions of interests and pass the desired soundfields with no distortion. This is achieved by using the higher order spatial harmonics of one zone to cancel the undesirable effects of the lower order harmonics of the same zone on the other zones. We illustrate the work by designing and simulating a 2D two-zone soundfield.
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Keywords
Keywords: Band-stop filters; Harmonic expansion; Higher order; Lower order harmonics; Open space; Regions of interest; Spatial harmonic; Undesirable effects; Audio acoustics; Harmonic analysis; Signal processing; Audio signal processing Cylindrical harmonic expansions; Multizone; Soundfield reproduction; Spatial band stop filters
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Source
Proceedings of IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2009)
Type
Conference paper
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Restricted until
2037-12-31
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