Speech signal processing and evaluation
US11043212B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 29, 2018 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Nov 29, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/60
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is disclosed a system that, when in operation, evaluates speech, for example evaluates a speech signal generated using a microphone to record an oral utterance. The system comprises: a user device that receives a user-defined text; and a processing unit that is operatively coupled to the user device, wherein the processing unit: refines the user-defined text to form a base text having a plurality of base text-units; defines at least one path traversing the plurality of base text-units, wherein the at least one path traverses at least one of the plurality of base text-units sequentially; receives an utterance for the user-defined text from the user device; processes the utterance to generate an interpretation text having a plurality of interpretation text-units; maps the plurality of interpretation text-units to the plurality of base text-units; assigns a score to the at least one path based on the mapped quality; identifies a traversed path from the at least one path; and calculates the assigned score associated with the traversed path to evaluate the speech.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.