Diagnostic techniques based on speech-sample alignment
US11727954B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2021 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Sep 18, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes obtaining a first sequence of reference-sample feature vectors that quantify acoustic features of different respective portions of at least one reference speech sample, which was produced by a subject at a first time while a physiological state of the subject was known, and a second sequence of test-sample feature vectors that quantify the acoustic features of different respective portions of at least one test speech sample, which was produced by the subject at a second time while the physiological state of the subject was unknown. The test-sample feature vectors are mapped to respective ones of the reference-sample feature vectors, under predefined constraints, such that a total distance between the test-sample feature vectors and the respective ones of the reference-sample feature vectors is minimized. In response to the mapping, an output indicating the physiological state of the subject at the second time is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.