Speech processing apparatus and method using a plurality of microphones
US11508363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Dec 2, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2021/02166
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A speech processing apparatus includes a plurality of microphones configured to receive a plurality of input signals, and processing circuitry configured to generate a spatial filtering signal corresponding to the plurality of input signals through spatial filtering, generate estimated noise information by integrating directional noise information representing a level of a noise signal received from a direction of interest with diffuse noise information representing levels of noise signals received from various directions based on whether the plurality of input signals have directionality, and generate an estimated speech signal by filtering the spatial filtering signal based on the estimated noise information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.