Multi-channel reverberation for computer music applications

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Publication details

Title of host publication1998 IEEE WORKSHOP ON SIGNAL PROCESSING SYSTEMS-SIPS 98
DatePublished - 1998
Pages210-219
Number of pages10
PublisherIEEE
Place of PublicationNEW YORK
EditorsES Manolakos, A Chandrakasan, LG Chen, WP Burleson, K Konstantinides
Original languageEnglish
ISBN (Print)0-7803-4997-0

Abstract

Reverberation is perhaps the most important post production tool available to the sound engineer or computer musician. Geometrical methods are often used to model the acoustic properties of a room - including reverberation - but are limited to being valid only for high frequencies. At low frequencies diffraction and the effects of room modes cannot be neglected. A method for modelling the two dimensional propagation of sound within an enclosed room is presented which encompases both of these particular properties by making use of a digital waveguide model. It is also possible to directionally encode the output from the room for processing music in a multi-channel surround-sound environment. A particular feature of this model is that the acoustic properties of the room can be explored and modified by means of a visual interface in a manner that is highly intuitive for musicians or those without an extensive knowledge of musical acoustics.

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