Invention Grant
- Patent Title: Sound wave field generation based on a desired loudspeaker-room-microphone system
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Application No.: US14679456Application Date: 2015-04-06
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Publication No.: US10469945B2Publication Date: 2019-11-05
- Inventor: Markus Christoph
- Applicant: Harman Becker Automotive Systems GmbH
- Applicant Address: DE Karlsbad
- Assignee: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH
- Current Assignee: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH
- Current Assignee Address: DE Karlsbad
- Agency: Brooks Kushman P.C.
- Priority: EP14163699 20140407
- Main IPC: H04R3/04
- IPC: H04R3/04 ; H04S7/00

Abstract:
A system and method are configured to generate a sound wave field around a listening position in a target loudspeaker-room-microphone system in which a loudspeaker array of K≥1 groups of loudspeakers, with each group of loudspeakers having at least one loudspeaker, is disposed around the listening position, and a microphone array of M≥1 groups of microphones, with each group of microphones having at least one microphone, is disposed at the listening position. The system and method include equalizing filtering with controllable transfer functions in signal paths upstream of the K groups of loudspeakers and downstream of an input signal path, and controlling with equalization control signals of the controllable transfer functions for equalizing filtering according to an adaptive control algorithm based on error signals from the M groups of microphones and an input signal on the input signal path.
Public/Granted literature
- US20150289058A1 SOUND WAVE FIELD GENERATION Public/Granted day:2015-10-08
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