METHOD AND SIGNAL PROCESSOR FOR INTENSIFICATION OF SPEECH SIGNAL COMPONENTS IN A HEARING AID

摘要

In a hearing aid signal processor with AGC in at least three processing channels (a, B, C) for different frequency bands and with noise squelching capability to affect the gain control in at least a lowest frequency band (A) and one intermediate frequency band (B) speech signals components in the intermediate frequency band of an input signal including background noise are intensified by estimation of the content of speech signal components in at least the highest frequency band (C) and modification of the gain adjustment caused by noise squelching in the intermediate frequency band (B) to reduce the noise squelching.