Speaker independent speech recognition system and method
US5946653A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1997 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Oct 1, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/0631
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improved method of training a SISRS uses less processing and memory resources by operating on vectors instead of matrices which represent spoken commands. Memory requirements are linearly proportional to the number of spoken commands for storing each command model. A spoken command is identified from the set of spoken commands by a command recognition procedure (200). The command recognition procedure (200) includes sampling the speaker's speech, deriving cepstral coefficients and delta-cepstral coefficients, and performing a polynomial expansion on cepstral coefficients. The identified spoken command is selected using the dot product of the command model data and the average command structure representing the unidentified spoken command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.