Interaural coherence for noise bands: waveforms and envelopes.

J Acoust Soc Am

Department of Physics and Astronomy, Biomedical and Physical Sciences Building, Michigan State University, East Lansing, Michigan 48824, USA.

Published: March 2010

This paper reports the results of experiments performed in an effort to find a formulaic relationship between the interaural waveform coherence of a band of noise gamma(W) and the interaural envelope coherence of the noise band gamma(E). An interdependence described by gamma(E)=pi/4+(1-pi/4)(gamma(W))(2.1) is found. This relationship holds true both in a computer experiment and for binaural measurements made in two rooms using a KEMAR manikin. Room measurements are used to derive a measure of reliability for the formula. Ultimately, a user who knows the waveform coherence can predict the envelope coherence with a small degree of uncertainty.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2906201PMC
http://dx.doi.org/10.1121/1.3290991DOI Listing

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