Fitting methodology and hearing prosthesis based on signal-to-noise ratio loss data
US7804973B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2003 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Apr 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An individual with a hearing loss often experiences at least two distinct problems: 1) the hearing loss itself i.e. an increase in hearing threshold level, and 2) a signal-to-noise ratio loss (SNR loss) i.e. a loss of ability to understand high level speech in noise as compared to normal hearing individuals. According to one aspect of the present invention, this problem is solved by selecting parameter values of a noise reduction algorithm or algorithms based on the individual user's SNR loss. Thereby, a degree of restoration/improvement of the SNR of noise-contaminated input signals of the hearing prosthesis has been made dependent on user specific loss data. According to another aspect of the present invention, a hearing prosthesis capable of controlling parameters of a noise reduction algorithms in dependence on the user's current listening environment as recognized and indicated by the environmental classifier has been provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.