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A model of sound localisation applied to the evaluation of systems for stereophony

Record type: Article

In this paper, a model of human sound localisation is described, and its prediction is compared to the results of listening tests. The model takes binaural signals as the input, processing them in a series of signal processing modules, which simulate the peripheral, binaural and the central stages of spatial hearing. In particular, the central processor of the model considers the excitation-inhibition (EI) cell activity patterns as the internal representation of available cues, and the source location estimates are obtained by using a simple pattern-matching procedure. In the listening tests, stereophonic images were presented to the listener's front, where the stimulus was either broadband or 1/3 octave band noise at 7 centre frequencies from 0.5 kHz to 6 kHz. The subjective responses compared well to the model prediction across frequency except for some cases where the image location was overestimated. Also, the prediction for the localisation of broadband phantom images agreed well with the test results, where the model prediction was integrated across frequency according to a tentatively suggested weighting function. Although the neuroscientific background is weak for the model, the good agreement with the subjective responses suggests that the model is worth investigating further.

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Citation

Park, Munhum, Nelson, Philip A. and Kang, Kyeongok (2008) A model of sound localisation applied to the evaluation of systems for stereophony Acta Acustica united with Acustica, 94, (6), pp. 825-839. (doi:10.3813/AAA.918102).

More information

Published date: November 2008
Organisations: Signal Processing & Control Group

Identifiers

Local EPrints ID: 71456
URI: http://eprints.soton.ac.uk/id/eprint/71456
ISSN: 1610-1928
PURE UUID: ede6fa4f-5091-4c1b-89eb-df821a60e1d9

Catalogue record

Date deposited: 01 Feb 2010
Last modified: 19 Jul 2017 00:00

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