Ear terminal with microphone for natural voice rendition
AssigneeNacre AS
InventorsJarle Svean, Svein Sørsdal, Odd Kr. Ø. Pettersen, Georg E. Ottesen, Sverre Stensby
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Abstract
Ear terminal and ear terminal system, in which at least one ear terminal includes a sealing section (2) arranged for use in the ear meatus (3) of a human, including an inner microphone (M2) having a sound inlet (S2) for being directed into the meatus (3); an electronic unit (11) including filtering part coupled to the inner microphone for filtering the signal from the inner microphone (M2), the filtering part being programmable to transform the signals based on the sounds received in the ear by the inner microphone (M2) into sounds when combined with the user's own voice, providing a voice sounding natural to the user.
Claims13
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).
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);
- 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 user's own voice, providing a voice sounding natural to the user;
- and
- a sealing section (2) for arrangement in the meatus (3) of a human, comprising
- an inner microphone (M2) having a sound inlet (S2) for being directed into the meatus,
- an electronics unit (11) coupled to the inner microphone (M2) and also being coupled to a power supply (12),
- an outer microphone (M1) for measuring acoustic signals in the environment, and
- a pressure alignment channel (T3) for slow air throughput to and from the meatus (3) through the sealing section (2),
- wherein the pressure alignment channel (T3) includes a pressure release valve (V) arranged for opening if the pressure difference between the meatus and the environment of the user exceeds a predetermined limit.
Dependencies are inferred from the claim text.