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Taking head movements into account in measurement of spatial attributes

Mason, RD, Kim, C and Brookes, T (2008) Taking head movements into account in measurement of spatial attributes In: Institute of Acoustics 24th Reproduced Sound Conference, 2008-11-20 - 2008-11-21, Brighton, UK.

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Abstract

Measurements of the spatial attributes of auditory environments or sound reproduction systems commonly only consider a single receiver position. However, it is known that humans make use of head movement to help to make sense of auditory scenes, especially when the physical cues are ambiguous. Results are summarised from a three-year research project which aims to develop a practical binaural-based measurement system that takes head movements into account. Firstly, the head movements made by listeners in various situations were investigated, which showed that a wide range of head movements are made when evaluating source width and envelopment, and minimal head movements made when evaluating timbre. Secondly, the effect of using a simplified sphere model containing two microphones instead of a head and torso simulator was evaluated, and methods were derived to minimise the errors in measured cues for spatial perception that were caused by the simplification of the model. Finally, the results of the two earlier stages were combined to create a multi-microphone sphere that can be used to measure spatial attributes incorporating head movements in a perceptually-relevant manner, and which allows practical and rapid measurements to be made.

Item Type: Conference or Workshop Item (Paper)
Related URLs:
Divisions: Faculty of Arts and Human Sciences > School of Arts > Sound Recording
Depositing User: Symplectic Elements
Date Deposited: 20 Jul 2011 12:00
Last Modified: 08 Nov 2013 12:09
URI: http://epubs.surrey.ac.uk/id/eprint/2950

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