Keyword spotting using multi-task configuration
US10304440B1 · kind B1 · utility
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14References
24Claims
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Key dates
| Filing date | Jun 30, 2016 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Jun 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/088
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An approach to keyword spotting makes use of acoustic parameters that are trained on a keyword spotting task as well as on a second speech recognition task, for example, a large vocabulary continuous speech recognition task. The parameters may be optimized according to a weighted measure that weighs the keyword spotting task more highly than the other task, and that weighs utterances of a keyword more highly than utterances of other speech. In some applications, a keyword spotter configured with the acoustic parameters is used for trigger or wake word detection.
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