Electronic audio accurate reproduction system and method

Details Electronic audio accurate reproduction system and method Electronic audio accurate reproduction system and method

1994-08-22

1996-05-07

Isen, Forester W.

Electrical audio signal processing systems and devices

Including frequency control

381106, 333 14, H03G 500

Patent

active

055154468

ABSTRACT:
An electronic audio processing system for insertion into the line prior to power amplification and a related method are disclosed which component and method render a frequency response in which undesirably strong frequency bands are flattened relative to the total frequency response by up to 10 dB, thereby providing enhanced dynamic audio reproduction. The audio signal is split into a plurality of frequency bands, each of which is actively, dynamically limited to a predetermined level related to the overall level of the unprocessed signal. The frequency bands are then recombined into a single processed signal which has an overall response which is as much as 10 dB more linearity than the unprocessed signal.

REFERENCES:
patent: 3101391 (1963-08-01), Tomatis
patent: 3617920 (1971-11-01), Jarvis
patent: 4186273 (1980-01-01), Dodson
patent: 4280018 (1981-07-01), Lazarus et al.
patent: 4567608 (1986-01-01), Watson et al.
patent: 4701953 (1987-10-01), White
National Semiconductor, AN-30, Nov. 1969.
Tremaine, Audio Cyclopedia, 1980, pp. 931-939.

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