Title:
ACTIVE SOUND EFFECT GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/217237
Kind Code:
A1
Abstract:
An ASC apparatus (11) is provided with: an intake-pipe microphone (37) for detecting a vibration noise signal generated in an intake pipe (39) of an internal combustion engine (13); a reference signal generator (55) for extracting, from the vibration noise signal, an acoustic component belonging to a prescribed frequency band on the basis of the rotation frequency (fq) of the engine (13), and generating a reference signal of a harmonic wave on the basis of the extracted acoustic component; a driver-seat speaker (25) for outputting sound including an effect; and a synthesizer (ad2) for generating, on the basis of the reference signal, a control signal used for generation of the effect, and outputting the control signal to the driver-seat speaker (25). The reference signal generator (55) sets, on the basis of the rotation frequency (fq) of the engine (13), a center frequency relating to the acoustic component.
Inventors:
INOUE TOSHIO (JP)
Application Number:
PCT/JP2017/020354
Publication Date:
December 21, 2017
Filing Date:
May 31, 2017
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
G10K15/04
Foreign References:
| JP2008013064A | 2008-01-24 | |||
| JP2005134749A | 2005-05-26 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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