公开(公告)号：US20220406282A1

公开(公告)日：2022-12-22

申请号：US17832528

申请日：2022-06-03

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Hiroki SATO ,  Hajime KAWASHIMA

IPC: G10H1/14 ,  G10H1/46 ,  G10H1/00 ,  G10H1/34

Abstract: An electronic musical instrument includes: a performance controller; and at least one processor, configured to perform the following: instructing sound generation of a first musical tone in response to a first operation on the performance controller; in response to a second operation on the performance controller during the sound generation of the first musical tone, obtaining a first amplitude value of the first musical tone at a time of the second operation, and obtaining a second amplitude value at which a second musical tone is to be sound-produced in response to the second operation on the performance controller; acquiring a parameter value for determining at least one of pitch, timbre, and volume of the second musical tone based on a ratio of the first amplitude value to the second amplitude value; and instructing sound generation of the second musical tone in accordance with the acquired parameter value.

公开(公告)号：US20220406281A1

公开(公告)日：2022-12-22

申请号：US17751595

申请日：2022-05-23

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Hiroki SATO ,  Hajime KAWASHIMA

IPC: G10H1/057 ,  G10H7/02 ,  G10H1/08

Abstract: An electronic musical instrument comprises: a performance controller; and at least one processor, configured to perform the following: instructing sound generation of a first musical tone in response to a first operation on the performance controller; in response to a second operation on the performance controller during the sound generation of the first musical tone, obtaining a first amplitude value of the first musical tone at a time of the second operation, and obtaining a second amplitude value at which a second musical tone is to be sound-produced in response to the second operation on the performance controller; determining a parameter value for adjusting a decay rate of the first musical tone based on a ratio of the first amplitude value to the second amplitude value; and causing the first musical tone to decay based on the determined parameter value.

公开(公告)号：US20180277073A1

公开(公告)日：2018-09-27

申请号：US15910901

申请日：2018-03-02

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Hiroki SATO ,  Hajime KAWASHIMA

IPC: G10H1/00 ,  G10H1/32

CPC classification number: G10H1/0008 ,  G10H1/24 ,  G10H1/32 ,  G10H7/045 ,  G10H2230/031 ,  G10H2240/161

Abstract: A musical sound generation device including a first memory having a plurality of waveform data, a second memory which stores waveform data read out from the first memory, and a control processor which controls such that, when a sound emission instruction is provided and specified waveform data is in the second memory, the waveform data is read out by the sound source processor, or controls such that, when a sound emission instruction is provided and specified waveform data is not in the second memory, the specified waveform data is transferred from the first memory to the second memory and read out by the sound source processor, in which the control processor controls such that waveform data satisfying a set condition is not subjected to a waveform data change by the transfer and waveform data not satisfying the set condition is subjected to the waveform data change by the transfer.