Audio equalizer providing reciprocal equalization plus infinite-

Details Audio equalizer providing reciprocal equalization plus infinite- Audio equalizer providing reciprocal equalization plus infinite-

1992-02-27

1994-01-25

Ng, Jin F.

Electrical audio signal processing systems and devices

Including frequency control

333 28T, H03G 500, H03H 500

Patent

active

052822524

ABSTRACT:
Audio equalizer circuit for adjusting the amount of boost and cut. The circuit uses a combination negative feedback, positive feedback, negative feed-forward and positive feed-forward resulting in boost and cut characteristics which are entirely reciprocal and which, nonetheless provides an infinite-depth notch. The equalizer is fabricated with an ordinary band pass filter, resistors, potentiometer and operational amplifiers.

REFERENCES:
patent: 4336501 (1982-06-01), Ishikawa et al.

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