Non-uniform time scale modification of recorded audio
US5828994A · kind A · utility
73Cited by
6References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1996 |
| Grant date | Oct 27, 1998 |
| Priority date | — |
| Expiry date | Jun 5, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
To modify the temporal scale of recorded speech, relative stress and relative speaking rate terms are computed for individual sections, or frames, of the speech. These terms are then combined into a single value denoted as audio tension. For a nominal time-scale modification rate, the audio tension is employed to adjust the modification rate of the individual frames of speech in a non-uniform manner, relative to one another. With this approach, compressed speech can be reproduced at a relatively fast rate, while remaining intelligible to the listener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.