A time-varying reverberation algorithm influenced by source directivity modulation
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Authors
Blaine, Taylor
Issue Date
2016-08
Type
Electronic thesis
Thesis
Thesis
Language
ENG
Keywords
Architectural sciences
Alternative Title
Abstract
A directivity pattern characterizes the radiation of a given sound source in space as a function of source characteristics. Traditional methods quantify directivity patterns of sources by impulse response measurements at a given angular resolution. An alternative method is proposed to map perceptually significant directivity changes of sources over time, from an envelope comparison of minimal microphones. With this information, the perceptually significant direct to reverberant ratio modulations can be used to synthesize the effect of source specific time-varying directivity in a reverberant field. Results of a listening test show the time-varying model is able to achieve high clarity and preference over traditional stereo convolution methods.
Description
August 2016
School of Architecture
School of Architecture
Full Citation
Publisher
Rensselaer Polytechnic Institute, Troy, NY