Hearing aid having noise reduction function and method for reducing noise

摘要

The present invention receives the sounds of the outside and two or more microphones to generate analog sound signals, each microphone is coupled to, and more than one A / D converter for converting analog sound signals to digital sound signals, A / D converter receives the digital sound signal from the sound of separating the digital audio signal and the digital noise signal by using the signal processing algorithm signal separation unit, a digital audio signal to a frequency characteristic amplifier according to a preset frequency-dependent amplification conditions and the amplification section, the amplified output and outputting a digital audio signal to the D / A converter for converting the analog audio signal into an analog voice signal parts relates to a digital hearing aids and noise removal method with a noise-canceling feature that contains, so that even in noisy environments, the patient wears a hearing aid can be provided only as an optional audio signal.