公开(公告)号：US20180330701A1

公开(公告)日：2018-11-15

申请号：US15952836

申请日：2018-04-13

Applicant: Yamaha Corporation

Inventor： Takuto YUDASAKA ,  Masakazu KATO ,  Keizo HARADA

IPC: G10H1/00 ,  G10D13/02 ,  G10H1/32 ,  H04R1/02

CPC classification number: G10H1/0008 ,  G10D13/027 ,  G10D13/028 ,  G10H1/32 ,  G10H3/146 ,  G10H2220/461 ,  G10H2230/015 ,  G10H2230/285 ,  H04R1/025 ,  H04R2201/028

Abstract: A percussion instrument is provided that includes a shell, a head and a speaker. The shell has a wall portion and at least one opening. The head is attached to the shell and overlies the at least one opening of the shell. The speaker is provided inside of the shell and oriented to output sound having a main direction of propagation towards the wall portion of the shell and/or the at least one opening of the shell having the head according to an input signal.

公开(公告)号：US20190279604A1

公开(公告)日：2019-09-12

申请号：US16288564

申请日：2019-02-28

Applicant: YAMAHA CORPORATION

Inventor： Masakazu KATO ,  Takashi SAKAMOTO ,  Hideaki TAKEHISA

IPC: G10D13/06 ,  G10H3/14 ,  G10H1/02

Abstract: A sound processing device includes: a combining processor that combines a performance sound and a source sound, based on operation information corresponding to a performance operation on an instrument. The performance sound is obtained by picking up a sound generated by the performance operation on the instrument. The source sound is obtained from a sound source.

公开(公告)号：US20240379130A1

公开(公告)日：2024-11-14

申请号：US18777936

申请日：2024-07-19

Applicant: YAMAHA CORPORATION

Inventor： Masakazu KATO ,  Yuji MIURA ,  Keizo HARADA

IPC: G11B27/031 ,  G06V10/77 ,  G06V40/18 ,  G06V40/20 ,  G10H1/00

Abstract: A signal processor includes an image obtainer, an estimator, and an outputter. The image obtainer obtains a performance image including playing of a drum. The estimator estimates a degree of attention attracted by the playing of the drum included in the performance image by inputting the performance image into a learning model. The learning model has been subjected to machine learning to estimate the degree of attention based on a feature quantity related to the playing of the drum. The outputter outputs the degree of attention estimated by the estimator.