Invention Grant
- Patent Title: Sound producing apparatus, keyboard instrument, and sound production control method
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Application No.: US15547619Application Date: 2015-12-18
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Publication No.: US09959843B2Publication Date: 2018-05-01
- Inventor: Kenta Ohnishi
- Applicant: YAMAHA CORPORATION
- Applicant Address: JP Hamamatsu-Shi
- Assignee: YAMAHA CORPORATION
- Current Assignee: YAMAHA CORPORATION
- Current Assignee Address: JP Hamamatsu-Shi
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2015-062684 20150325
- International Application: PCT/JP2015/085522 WO 20151218
- International Announcement: WO2016/151963 WO 20160929
- Main IPC: G10C1/04
- IPC: G10C1/04 ; G10H1/32 ; G10C3/18 ; G10C3/06 ; G10C3/16

Abstract:
A sound producing apparatus includes: a plurality of sound producing members with differing oscillation frequencies; dampers each corresponding to a respective sound producing member and suppressing vibration by contacting the corresponding sound producing members; a damper operation mechanism that moves each damper, thereby controlling a state of contact of the damper with a corresponding sound producing members; a soundboard that undergoes sympathetic resonance with sound producing members; a vibrator that vibrates the soundboard; an acquisition unit configured to acquire an audio signal; a signal output unit configured to: generate a drive signal for driving the vibrator with a vibration corresponding to the acquired audio signal; and output the drive signal to the vibrator; and a damper control unit configured to drive the damper operation mechanism to change a state of contact between the sound producing members and their corresponding dampers, based on frequency distribution of acquired audio signal.
Public/Granted literature
- US20180033407A1 SOUND PRODUCING APPARATUS, KEYBOARD INSTRUMENT, AND SOUND PRODUCTION CONTROL METHOD Public/Granted day:2018-02-01
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