Noise reduction system for an audio system

Details Noise reduction system for an audio system Noise reduction system for an audio system

1997-05-05

1999-07-20

Edun, Muhammad

Dynamic magnetic information storage or retrieval

General recording or reproducing

360 46, 360 54, 360 25, G11B 502

Patent

active

059263342

ABSTRACT:
An input signal from an audio system is divided into a plurality of frequency bands, and the signal in each frequency band is attenuated by an attenuator. The output signals of the attenuators are added. A level of the signal in each frequency band is detected by a level detector. A memory is provided for feeding an attenuation dependent on a level detected by the level detector. A controller is provided for controlling a signal attenuation of the attenuator by an attenuation fed from the memory in accordance with a detected level.

REFERENCES:
patent: 4599569 (1986-07-01), Otsuki et al.

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