Digital speech processing system
US6420986B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Feb 6, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/183
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a speech processing system (10) characterized by a finite range of audio levels, the speech processing system (10) receiving an incoming audio signal, the speech processing system amplifying (12) the incoming audio signal by an audio gain factor, the speech processing system (10) representing the amplified audio signal by the finite range of audio levels, a method for adjusting the audio gain factor, including the steps of: decreasing the audio gain factor when detecting clipping of the amplified audio signal, maintaining the audio gain factor for a hold time period, and increasing the gain factor when detecting that the result of amplification of the incoming sound levels by the audio gain factor, is lower than the highest level of the finite range of audio levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.