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发表于 2009-9-10 15:25:28
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给你一个学术研究上常用的人工头配置:
Q8. How was KEMAR configured?
The mannequin head and torso is usually referred to simply as KEMAR
(Knowles Electronics Mannequin for Acoustics Research). The Mannequin
head and torso is model DB-4004 (which includes model DB-062 head and
model DB-127 torso). The torso was equipped with two neck rings
(included with model DB-4004). The pinnae come in small (model DB-060 =
right, DB-061 = left) and "large-red" (model DB-065 = right, DB-066 =
left) sizes. For our measurements, the left pinna was model DB-061, and
the right pinna was model DB-065 (see Q10). The ears were fitted with
canal extensions (model DB-050, one for each ear) that couple to the
occluded ear simulators (model DB-100, one for each ear). The occluded
ear simulators are Zwislocki couplers that simulate the terminating
impedance of the eardrum. 'Eardrum' pressure was measured with Etymotic
Research ER-11 microphones (which come with preamplifiers). The
preamplifiers were set to have flat equalization (no diffuse-field
equalization). |
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