Signal processing system and a method of determining noise reduction and compensation thereof
US11380346B2 · kind B2 · utility
0Cited by
7References
13Claims
0Family size
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Key dates
| Filing date | May 22, 2020 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Oct 23, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of determining noise reduction in a signal includes transforming the signal to generate a spectrogram; determining sharp change in a frequency spectrum for each frame in the spectrogram; and comparing a counted number of frames having sharp change with a predetermined value. The signal is determined to be subject to noise reduction if the counted number is greater than the predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.