United States Patent
US Patent 4683589: Electronic audio system
US 4683589 · granted 1987-07-28
| Patent Number | 4683589 |
|---|---|
| Title | Electronic audio system |
| Filed | 1985-11-27 |
| Granted | 1987-07-28 |
| Inventor(s) | Donald T. Scholz, Augustine Antoine |
| Assignee | SCHOLZ RES AND DEV |
| CPC Classification | G10H1/00, G10H1/10, G10H1/08 |
| Number of Claims | 6 |
Abstract
An electronic audio signal processor circuit particularly suited for electrical instruments as an electric bass guitar for providng controlled distortion and tone alteration. The circuitry includes a compressor circuit at the input operated in conjunction with a detector which in accordance with the invention is an RMS detector. Also, at the input circuitry is a distortion switch which controls the type of distortion that is generated. This distortion switch is used in conjunction with a distortion amplifier, the output of which couples to a resistive sensing network. The network feeds the audio signals to a low EQ circuit, a mid EQ circuit and a high EQ circuit. Associated with the high EQ circuit is a clipper switch and at the output of the EQ circuitry is an EQ switch for providing a preferred predetermined frequency response wave forms. A high frequency compressor and associated switch is also associated with the EQ switch. The output circuitry includes a chorus circuit and associated chorus control switch. Appropriate mixing is provided at the output.
Claims Summary
1. An electronic audio signal system for processing signals in the audio frequency range and comprising, input circuit means for receiving the audio signal, filter means cmprising separate high EQ, mid EQ and low EQ filter circuits, said input circuit means coupling to said filter means, EQ switch means coupled from the output of said low, mid and high EQ filter circuits for selectively establishing multiple frequency response waveforms, and output circuit means coupled from said EQ switch means, said input circuit means comprising a compressor, a sustain control switch means and a detector means comprising an RMS detector, and a feedback loop between the input and the output of the compressor including in the feedback loop said RMS detector and said sustain control switch means.