Circuit for distorting an audio signal
US4405832A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 1981 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | May 29, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Circuitry is provided for distorting an audio signal, useful in providing a "dirty" sound to an electric guitar simulating a vacuum tube amplification thereof. The circuit includes components for simultaneously changing the amount of distortion introduced by a clipping circuit and the amount of gain boost provided at a preselected narrow bandwidth. Addition of such gain boost leads both to increased clipping of the audio signal and to reduced frequency response, at both low and high frequencies. A separate volume control is provided for broad band gain adjustment. Independently operable control switches permit insertion or elimination of the distortion, and insertion or elimination of a brightness circuit boosting high frequency response of the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.