EP 1469703 B1 20070613 - Method of processing an acoustical signal and a hearing instrument
Title (en)
Method of processing an acoustical signal and a hearing instrument
Title (de)
Verfahren zur Verarbeitung eines akustischen Signals und ein Hörgerät
Title (fr)
Procédé de traitement d'un signal acoustique et un appareil auditif
Publication
Application
Priority
EP 04405272 A 20040430
Abstract (en)
[origin: EP1469703A2] A method of processing an acoustic input signal into an output signal in a hearing instrument includes converting the acoustic input signal into a converted input signal, and applying a gain to the converted input signal to obtain the output signal. According to the invention, the gain is calculated using a room impulse attenuation value being a measure of a maximum negative slope of the a converted input signal power on a logarithmic scale. The calculation of the gain may include evaluating a signal power development value being a measure of the actual converted input signal power attenuation or signal power increase, evaluating a signal-to-reverberation-noise ratio from the signal power development value and the room impulse attenuation value, and calculating, based on a gain rule, said gain from said signal-to-reverberation-noise ratio. <IMAGE>
IPC 8 full level
G10L 21/02 (2006.01); H04R 25/00 (2006.01)
CPC (source: EP)
H04R 25/505 (2013.01); H04R 2225/43 (2013.01)
Designated contracting state (EPC)
CH DE DK LI
DOCDB simple family (publication)
EP 1469703 A2 20041020; EP 1469703 A3 20050622; EP 1469703 B1 20070613; DE 602004006912 D1 20070726; DE 602004006912 T2 20080228; DK 1469703 T3 20071008
DOCDB simple family (application)
EP 04405272 A 20040430; DE 602004006912 T 20040430; DK 04405272 T 20040430