Invention Grant
- Patent Title: Audio precompensation filter optimized with respect to bright and dark zones
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Application No.: US16467457Application Date: 2016-12-07
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Publication No.: US11246000B2Publication Date: 2022-02-08
- Inventor: Simon Widmark
- Applicant: DIRAC RESEARCH AB
- Applicant Address: SE Uppsala
- Assignee: DIRAC RESEARCH AB
- Current Assignee: DIRAC RESEARCH AB
- Current Assignee Address: SE Uppsala
- Agency: Nixon & Vanderhye
- International Application: PCT/SE2016/051228 WO 20161207
- International Announcement: WO2018/106163 WO 20180614
- Main IPC: H04S7/00
- IPC: H04S7/00

Abstract:
Disclosed is a system configured to determine filter parameters of an audio precompensation filter for the compensation of an associated sound generating system having at least two loudspeakers. The system is configured to obtain sound field models describing the sound field in at least one region of space designated the bright zone and the sound field in at least one region of space designated the dark zone. The system is also configured to obtain a target sound field in the bright zone. Further, the system is configured to determine filter parameters of the audio precompensation filter so that a criterion function is optimized under the constraint of causality and stability of the dynamics of the audio precompensation filter to enable reproduction of a desired target sound field in the bright zone, while reproducing as little sound as possible in the dark zone.
Public/Granted literature
- US20210289304A1 AUDIO PRECOMPENSATION FILTER OPTIMIZED WITH RESPECT TO BRIGHT AND DARK ZONES Public/Granted day:2021-09-16
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