System and method for rendition control
US6207885A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2000 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Jan 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H2240/311
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention presents a rendition control apparatus that not only reduces processing so that processing is neither complicated nor complex, but also reduces the used storage region. The rendition control apparatus allows for differences in the timing over the passage of time when reproducing and rendering a continuous sound waveform, and renders sound waveforms naturally and with good rhythm, while making it possible to change the reproduction tempo freely. The rendition control apparatus includes a waveform data storage means for storing waveform data rendered at a certain tempo; a reproduction tempo information production means for producing reproduction tempo information indicating a reproduction tempo; a time-axis compression/expansion processing means for compressing/expanding and reproducing the waveform data stored in said waveform data storage means in real-time on the time axis, based on reproduction tempo information produced by said reproduction tempo information production means; a control signal production means for producing a control signal for modulating periodically with the passage of time the reproduction with the time-axis compression/expansion processing means…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.