HRIR~: modulating range in headphone-reproduced spatial audio

Authors:
Julián Villegas;Michael Cohen
Affiliations:
University of Aizu, Japan;University of Aizu, Japan
Venue:
Proceedings of the 9th ACM SIGGRAPH Conference on Virtual-Reality Continuum and its Applications in Industry
Year:
2010

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Abstract

HRIR~, a new software audio filter for Head-Related Impulse Response (HRIR) convolution is presented. The filter, implemented as a Pure-Data object, allows dynamic modification of a sound source's apparent location by modulating its virtual azimuth, elevation, and range in realtime, the last attribute being missing in surveyed similar applications. With hrir~ users can virtually localize monophonic sources around a listener's head in a region delimited by elevations between [--40, 90]°, and ranges between [20, 160] cm from the center of the virtual listener's head. An application based on hrir~ is presented to illustrate its benefits.