Abstract
A library of real-world reverberation and a toolbox for its analysis and measurement
The Journal of the Acoustical Society of America, Vol.141(5 Supplement), pp.3631-3632
05/2017
DOI: 10.1121/1.4987815
Abstract
Reverberation distorts the sounds produced in the world, but in doing so provides information about the environment. This distortion is characterized by the Impulse Response (IR) and depends upon the material and geometry composing the environment. For some tasks (voice recognition, source localization, acoustic tomography, etc.), reverberation must be discounted, but for others (room identification, distance estimation, etc.), it must be analyzed. Our recent work on the perception of reverberation has leveraged measurements of real-world IRs, which exhibit a number of regularities that the brain appears to have internalized for auditory scene analysis. Here, we present a library of these measurements and a toolbox for measuring and analyzing additional IRs. The library contains 271 IRs from spaces encountered by 7 volunteers over 2 weeks of daily life, and thus reflects the distribution of typical reverberation experienced by humans. The toolbox includes procedures for measuring IRs with low-cost, portable equipment, with a low-volume broadcast. This allows measurement in both public and outdoor spaces. Both the library and toolbox are publicly available.
Details
- Title: Subtitle
- A library of real-world reverberation and a toolbox for its analysis and measurement
- Creators
- James Traer - Brain and Cognit. Sci., MIT, 77 Massachusetts Ave., Cambridge, MA 02139, jtraer@mit.eduJosh McDermott - Brain and Cognit. Sci., MIT, 77 Massachusetts Ave., Cambridge, MA 02139, jtraer@mit.edu
- Resource Type
- Abstract
- Publication Details
- The Journal of the Acoustical Society of America, Vol.141(5 Supplement), pp.3631-3632
- DOI
- 10.1121/1.4987815
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Number of pages
- 2
- Date published
- 05/2017
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute
- Record Identifier
- 9984065370502771
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