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(11) | EP 1 458 217 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Hearing instrument with flexible frequency response shaping |
(57) An acoustic filter (11) of a hearing instrument or acoustic device (1), respectively,
is being detachably placed nearby or at the opening (3) for the acoustic output of
the instrument or device, respectively. The filtering element (11) is made of a polymer
material, a synthetic, metallic or ceramic material or a fabric-like material. |