Method and device for boosting formants from speech and noise spectral estimation
US10043533B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2016 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Jun 13, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2019/0016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device including a processor and a memory is disclosed. The memory includes a noise spectral estimator to calculate noise spectral estimates from a sampled environmental noise, a speech spectral estimator to calculate speech spectral estimates from the input speech, a formant signal to noise ratio (SNR) estimator to calculate SNR estimates using the noise spectral estimates and speech spectral estimates within each formant detected in a speech spectrum. The memory also includes a formant boost estimator to calculate and apply a set of gain factors to each frequency component of the input speech such that the resulting SNR within each formant reaches a pre-selected target value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.