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Binaural Modeling of Multiple Sound Source Perception: Coloration of Wideband Sound

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Binaural modeling of coloration of sound perceived due to multiple coherent sources is studied under the condition in which sounds arrive at a listener successively within a certain time delay. Our former work showed that a binaural model of timbre perception describes the coloration almost independently of the directional perception, based on listening tests using 1-Bark-width bandlimited noise and pulse trains. The present work is an extension of the study to verify the timbre model, including listening experiments with broadband noise and pulse trains. The results show that our modeling still has a good agreement with the listening tests results for broadband signals in general, but also show clear deviation from the bandlimited noise case especially at low frequencies.

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