Filtering method, filtering device, and storage medium stored with filtering program
US12315528B2 · kind B2 · utility
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5References
11Claims
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Key dates
| Filing date | Jul 28, 2021 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Jul 28, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2021/02166
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A filtering method includes: receiving a first audio signal and a second audio signal that include sound emitted from a same sound source at different volumes; generating a filter signal by convoluting adaptive filter coefficients into the second audio signal; removing components of the filter signal from the first audio signal; and limiting a gain of the adaptive filter coefficients to 1.0 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.