Adaptive dynamic range of optimization sound processor
US6731767B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2000 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Jan 5, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment an apparatus for processing sound includes a means (401) for analyzing a sound signal into a number frequency bands and a means (403) for applying variable gain to each frequency band independently. Gain is applied under control of a number of gain comparator means (409) each of which generates a number of statistical estimates in respect of each signal and compares those estimates to predetermined hearing response parameters stored in memory (411). The numerous gain compensated frequency bands are then combined (415) in order to generate a single sound signal. The apparatus may be implemented in dedicated hardware embodiment or by software running on a microprocessor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.