发明名称 |
METHOD AND APPARATUS FOR OBJECTIVE ASSESSMENT OF IN-EAR DEVICE ACOUSTICAL PERFORMANCE |
摘要 |
A method and apparatus (10) for objectively assessing acoustical performance of an in-ear device (12) having a passageway (20) extending there through use a dual microphone probe (26) that removably engages the passageway (20). The acoustical performance of the in-ear device (12) is performed with the in-ear device (12) inserted into the ear canal (14) of the user and a reference sound source (24). A clip (36) holding the probe (26) in an acoustic near field of the sound source (24) permits real time calibration thereof. The method and apparatus (10) allow on-site and in-situ measurement of a predicted personal attenuation rating (P-PAR) of the device, a subject-fit re-insertion test, an acoustic seal test, a rating test, a stability and reliability test, as well as a protection test of the device (12) with an assessment of a filtered predicted exposure level (F-PEL) at the ear for a specific noise exposure level. The apparatus (10) may be simply housed along with the sound source (24) for the in-field evaluation tests. |
申请公布号 |
EP1702497(A1) |
申请公布日期 |
2006.09.20 |
申请号 |
EP20040802256 |
申请日期 |
2004.12.03 |
申请人 |
SONOMAX HEARING HEALTHCARE, INC;ECOLE DE TECHNOLOGIE SUPERIEURE |
发明人 |
VOIX, JEREMIE;LAVILLE, FREDERIC |
分类号 |
A61F11/08;H04R25/00;H04R29/00 |
主分类号 |
A61F11/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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