Voice isolation system
US11373665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2019 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Mar 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R5/033
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosure includes a voice isolation system comprising an acoustic echo-cancelation subsystem configured to receive a plurality of input signals, subtract an interference component from the input signals, and provide a plurality of output signals. The system also includes an adaptive beamformer subsystem configured to receive the plurality of output signals from the acoustic echo-cancelation subsystem and compute a signal-to-noise ratio enhanced signal based on the received output signals. The system also includes a residual noise suppressor subsystem configured to attenuate at least one portion of the SNR enhanced signal received from the adaptive beamformer subsystem based on the at least one portion having an SNR below a predetermined SNR threshold. The system also includes an automatic gain control subsystem configured to process a signal outputted from the residual noise suppressor subsystem and transmit a resulting signal as an output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.