Device and method for tuning a frequency-dependent attenuation stage
US10283137B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 18, 2015 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Feb 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2400/09
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A device (160) and a method are proposed for tuning a frequency-dependent attenuation stage (122), with the purpose of suppressing non-linear distortion occurring in an audio reproduction system (120) associated with the frequency-dependent attenuation stage. The device comprises a receiving section (162) adapted to receive data representing an output acoustic signal (140) from the audio reproduction system, recorded upon excitation of the audio reproduction system by a predetermined input data signal (110)a first distortion detection section (163) adapted to detect presence of non-linear distortion based on the received data and to apply psycho-acoustic compensation to the detected non-linear distortion and a control section (164) adapted to determine, based on the psycho-acoustically compensated non-linear distortion, control information (170) suitable for controlling the frequency-dependent attenuation stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.