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Perceptual criteria for eliminating reflectors and occluders from the rendering of environmental sound

  • Given limited computational resources available for the rendering of spatial sound imagery, we seek to determine effective means for choosing whatcomponents of the rendering will provide the most audible differences in the results. Rather than begin with an analytic approach that attempts to predict audible differences on the basis of objective parameters, we chose to begin with subjective tests of how audibly different the rendering result may be heard to be when that result includes two types of sound obstruction: reflectors and occluders. Single-channel recordings of 90 short speech sounds were made in an anechoic chamber in the presence and absence of these two types of obstructions, and as the angle of those obstructions varied over a 90 degree range. These recordings were reproduced over a single loudspeaker in that anechoic chamber, and listeners were asked to rate how confident they were that the recording of each of these 90 stimuli included an obstruction. These confidenceGiven limited computational resources available for the rendering of spatial sound imagery, we seek to determine effective means for choosing whatcomponents of the rendering will provide the most audible differences in the results. Rather than begin with an analytic approach that attempts to predict audible differences on the basis of objective parameters, we chose to begin with subjective tests of how audibly different the rendering result may be heard to be when that result includes two types of sound obstruction: reflectors and occluders. Single-channel recordings of 90 short speech sounds were made in an anechoic chamber in the presence and absence of these two types of obstructions, and as the angle of those obstructions varied over a 90 degree range. These recordings were reproduced over a single loudspeaker in that anechoic chamber, and listeners were asked to rate how confident they were that the recording of each of these 90 stimuli included an obstruction. These confidence ratings can be used as an integral component in the evaluation function used to determine which reflectors and occluders are most important for rendering.show moreshow less

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Metadaten
Author:William L. Martens, Jens HerderORCiDGND
Fachbereich/Einrichtung:Hochschule Düsseldorf / Fachbereich - Medien
Hochschule Düsseldorf / Fachbereich - Medien / Sound and Vibration Engineering​
Hochschule Düsseldorf / Fachbereich - Medien / Creative Media Production and Entertainment Computing
Document Type:Conference Proceeding
Year of Completion:1999
Language of Publication:English
Publisher:Acoustical Society of America, European Acoustics Association
Place of publication:Berlin
Parent Title (English):137th Regular Meeting of the Acoustical Society of America and the 2nd Convention of the European Acoustics Association
Tag:audio rendering; first-order reflection; human perception; level of detail; occluder; sound spatialization resource management
Licence (German):keine Lizenz - nur Metadaten
Release Date:2019/02/15
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