Title:
ACTIVE NOISE REDUCTION SYSTEM AND ACTIVE NOISE REDUCTION PROGRAM
Document Type and Number:
Japanese Patent JP2023144581
Kind Code:
A
Abstract:
To provide an inexpensive active noise reduction system that can effectively reduce noise.SOLUTION: An active noise reduction system 11 includes: canceling sound output devices 12A-12D that output a canceling sound y for canceling noise; a plurality of noise microphones 13A-13E that generate a plurality of noise signals x on the basis of noise; and a controller 16 that controls the canceling sound output devices 12A-12D on the basis of the plurality of noise signals x. The controller 16 acquires the plurality of noise signals x output from the plurality of noise microphones 13A-13E, selects a reference signal r' corresponding to the noise and an error signal e' corresponding to an error between the noise and the canceling sound y from among the plurality of noise signals x, generate a correction reference signal r by removing a component of the canceling sound y from the reference signal r', and generates a control signal u for controlling the canceling sound output devices 12A-12D on the basis of the correction reference signal r.SELECTED DRAWING: Figure 2
Inventors:
INOUE TOSHIRO
WANG XUN
WANG XUN
Application Number:
JP2022051631A
Publication Date:
October 11, 2023
Filing Date:
March 28, 2022
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
G10K11/178; B60R11/02; H04R3/02
Attorney, Agent or Firm:
Oshima Patent Office