公开(公告)号：US20210005173A1

公开(公告)日：2021-01-07

申请号：US17028386

申请日：2020-09-22

Applicant: YAMAHA CORPORATION

Inventor： Akira MAEZAWA ,  Bochen LI

IPC: G10H1/00 ,  G06K9/00 ,  G06N3/08 ,  G06N20/00 ,  G06F17/18

Abstract: An apparatus is provided that accurately estimates a point at which a musical performance is started by a player. The apparatus includes the musical performance analysis unit 32, and the musical performance analysis unit 32 obtains action data that includes a time series of feature data representing actions made by a player during a musical performance for a reference period and estimating a sound-production point based on the action data at an estimated point using a learned model L.