Patent ID: 6661901
Filing Date: 2003-12-09
Classification: A61F,H04R

Abstract:
Ear terminal comprising a sealing section (2) arranged for use in the ear meatus (3) of a human, comprising:an inner microphone (M2) having a sound inlet (S2) for being directed into the meatus (3); and an electronic unit (11) including filtering means coupled to said inner microphone for filtering the signal from said inner microphone (M2), said filtering means being programmable to transform the signals based on the sounds received in the ear by said inner microphone (M2) into sounds when combined with the users own voice, providing a voice sounding natural to the user, wherein, said filtering means comprises a signal dependent filter (21, 22, 23) whose characteristics is adaptable by depending on the characteristics of the signal from the inner microphone (M2), thereby obtaining a good reconstruction of the speech signal received by the inner microphone (M2), and the signal dependent filter (21, 22, 23) comprises a sound class analysis module (21) coupled to a decision block (22) for selection of a conditioning filter (23) for the processing of the signal from the inner microphone (M2).