Methods and systems for speech detection
US10861484B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2018 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Mar 3, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments generally relate to a device comprising at least one signal input component for receiving a bone conducted signal from a bone conducted signal sensor of an earbud; memory storing executable code; and a processor configured to access the memory and execute the executable code. Executing the executable code causes the processor to: receive the bone conducted signal; determine at least one speech metric for the received bone conducted signal, wherein the speech metric is based on the input level of the bone conducted signal and a noise estimate for the bone conducted signal; based at least in part on comparing the speech metric to a speech metric threshold, update a speech certainty indicator indicative of a level of certainty of a presence of speech in the bone conducted signal; update at least one signal attenuation factor based on the speech certainty indicator; and generate an updated speech level estimate output by applying the signal attenuation factor to a speech level estimate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.