Wavetable audio synthesizer with multiple volume components and two modes of stereo positioning
US6246774A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1997 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Jul 9, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H7/002
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A digital wavetable audio synthesizer including a synthesizer volume generator. The volume generator causing a data sample to be multiplied by volume components that add right offset, left offset, and effects volume to the data. The left and right offsets provide stereo field positioning, and the effects volume is used in generating an echo effect. The data sample can be placed in one of sixteen fixed stereo pan positions, or alternatively the left and right offset values can be programmed to place the data anywhere in the stereo field. The synthesizer includes a register array programmed with right and left offset values for providing wavetable data with right and left offset volume components. The synthesizer also includes a first storage device for storing the right offset value, a second storage device for storing the left offset value, and multiplication circuitry connected to both storage devices for providing wavetable data with right and left offset volume components based on values stored in the first and second storage devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.