Signal dependent speech modifications
US6324501A · kind A · utility
4Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1999 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Aug 18, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Speech signals, and similar one-dimensional signals, are time scaled, interpolated, and/or smoothed, when necessary, under influence of a signal that is sensitive to a small window stationarity of the signal that is being modified. Three measures of stationarity are disclosed: one that is based on time domain analysis, one that is based on frequency domain analysis, and one that is based on both time and frequency domain analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.