Audio mixer architecture using virtual gain control and switching
US4885792A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1988 |
| Grant date | Dec 5, 1989 |
| Priority date | — |
| Expiry date | Oct 27, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An audio mixer architecture using virtual gain and switching has a single gain stag in each audio input signal path. A plurality of audio input signals are input to respective audio input channels having two or more active gain elements at the output to provide parallel signal paths for each audio input signal. The audio signals from the active gain elements are combined to form up to four audio output channels in any desired combination of audio input signals. The individual audio input signal gains and the master audio output signal gains are synthesized together as a single gain control signal for each active gain element to simulate successive gain stages for each audio input signal path within a single gain stage for that path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.