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Free field localisation with a single sound transducer

โœ Scribed by L.F. Elfner; W.R. Howse

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
670 KB
Volume
18
Category
Article
ISSN
0003-6870

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โœฆ Synopsis

An auditory Iocalisation task involving 360 ยฐ azimuth was performed by three subjects in a large anechoic chamber. A single sound source of a rotating form was employed. Responses were measured to the nearest 10 ยฐ of azimuth. Under a control condition of 'no helmet', Iocalisation was within measurement errors for all degrees of azimuth. Under conditions of a DH-178 helmet in passive mode, the response field narrowed considerably, and with DH-178 active a further narrowing of the response field occurred. A DH-140 helmet in active mode showed the most degradation of response field. With the helmets in the active mode all sounds were heard as emanating from inside the head.

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