Integrated circuit for audio enhancement system

Details Integrated circuit for audio enhancement system Integrated circuit for audio enhancement system

1995-04-11

1997-06-24

Isen, Forester W.

Electrical audio signal processing systems and devices

Including phase control

381 17, 381 61, H03H 1118

Patent

active

056424272

ABSTRACT:
An integrated circuit for use as a building block in different embodiments of systems for enhancing audio performance by providing group delay to various frequency components of the signal. The integrated circuit includes four op amps and associated circuitry. Using external connections, the device can be configured as a two-channel stereo device, or can be cascaded for monaural applications. Two of the chips may be cascaded together for stereo applications. External capacitances and resistances are used to control the degree of group delay provided to the signal to realize desired audio enhancement.

REFERENCES:
patent: 5425106 (1995-06-01), Katz et al.
National Semiconductor LM-324, from p. 3-142 of National Semiconductor's Linear Data Book, Jun. 1976.

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