Systems and methods for reduction of audio artifacts in an audio system with dynamic range enhancement
US9596537B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2014 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Oct 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In accordance with embodiments of the present disclosure, a control circuit may be configured to, responsive to an indication to switch between gain modes of a signal path having an analog path portion and a digital signal path portion, switch a selectable analog gain of the analog path portion between a first analog gain and a second analog gain, switch a selectable digital gain of the digital signal path portion between a first digital gain and a second digital gain, wherein the product of the first analog gain and the first digital gain is approximately equal to the product of the second analog gain and the second digital gain, and control an analog response of the signal path to reduce the occurrence of audio artifacts present in the output signal as a result of the switch between gain modes of the signal path.A signal path may have an analog path portion and a digital signal path portion. The digital portion may have a selectable digitally-controlled gain and may be configured to convert a digital audio input signal into an analog input signal in conformity with the selectable digitally-controlled gain, the digital signal path portion comprising a modulator including a forward…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.