公开(公告)号：US20230335098A1

公开(公告)日：2023-10-19

申请号：US17787595

申请日：2019-12-27

申请人： Roland Corporation

发明人： Toshiharu KIMURA ,  Atsushi Hoshiai

IPC分类号： G10H3/14 ,  G10H1/02 ,  G10H3/26

CPC分类号： G10H3/26 ,  G10H1/02 ,  G10H3/146 ,  G10H3/143 ,  G10H2220/525

摘要： This device for controlling feedback of an electronic percussion instrument includes an acquisition part that acquires a feedback signal of a musical sound of the electronic percussion instrument emitted through an amplifier and a speaker, and a processing circuit that performs uncorrelated processing on the feedback signal on the basis of information indicating a control amount, and outputs a signal after the uncorrelated processing to the amplifier.

公开(公告)号：US09818390B1

公开(公告)日：2017-11-14

申请号：US15225835

申请日：2016-08-02

申请人： Roland Corporation

发明人： Satoshi Kusakabe ,  Atsushi Hoshiai ,  Kenji Hirano

IPC分类号： G10H7/00 ,  G10H7/02

CPC分类号： G10H7/02 ,  G10H1/125 ,  G10H2210/271 ,  G10H2250/061 ,  G10H2250/235 ,  G10H2250/615 ,  G10H2250/641

摘要： Provided are a memory device and waveform data editing method and editing program thereof. Waveform data obtained by sampling a musical sound is acquired, and a difference between a harmonic frequency of an nth harmonic of the waveform data and a resonance sound frequency of the nth harmonic sound of a resonance sound generation circuit is calculated, and if the difference is 1 Hz or more, a waveform of a frequency component of 20 Hz centered on a central of the frequency of the nth harmonic of a frequency spectrum is clipped. The difference calculated in regard to the clipped waveform is reduced. The waveform and the clipped original waveform are combined to edit the waveform data. Thus, in the waveform data, the difference between the harmonic frequencies of the resonance characteristic is eliminated, and resonance is facilitated and occurrence of beat of the sound is prevented.