Abstract
Four standard methods for measuring the effect of head-worn devices on sound localization in the horizontal plane have been developed by the working group S3/WG94. The objective was to establish methods that enable accurate, repeatable, and reliable measurement of sound localization performance for human listeners. The standard describes four measurement methods: (1) a low complexity, coarser method to estimate the proportion of location discrimination and front/back reversal errors using 8 loudspeakers; (2) a more complex, more robust method to measure localization error using 36 loudspeakers and a fine resolution response method; (3) a method to measure the functional impact of localization with degraded cues using 36 loudspeakers and an aurally guided visual search task; and (4) a method using 180 loudspeakers to precisely measure localization acuity. The methods will be described in detail.
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