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Reduction of transient sounds in hearing implants
专利权人:
MED-EL Elektromedizinische Geraete GmbH
发明人:
Florian Frühauf,Ernst Aschbacher
申请号:
US13975487
公开号:
US08929994B2
申请日:
2013.08.26
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A method is described for generating electrode stimulation signals for electrode contacts in a cochlear implant electrode array. An input audio signal is processed to generate band pass channel signals that each represent an associated band of audio frequencies. A channel envelope is extracted from each channel signal. The input audio signal and the channel envelopes are processed to produce transient reduced envelopes based on: i. determining for each channel envelope a normalized channel-specific transient indicator characterizing transient noise present in the channel signal, ii. determining a combined transient indicator as a function of the channel-specific transient indicators, and iii. applying a channel-specific gain to the channel envelopes as a function of the combined transient indicator to produce the transient reduced envelopes. The transient reduced envelopes are then used to generate electrode stimulation signals to the electrode contacts.
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