ESTIMATION MODEL CONSTRUCTION METHOD, PERFORMANCE ANALYSIS METHOD, ESTIMATION MODEL CONSTRUCTION DEVICE, PERFORMANCE ANALYSIS DEVICE, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To analyze a performance of musical instruments with high accuracy.;SOLUTION: Provided is a device for constructing an estimation model M which estimates onset data D representing a pitch at which an onset exists from feature amount data F representing a feature amount of a performance sound of an instrument, which includes: a training data preparation unit 21 which prepares a plurality of pieces of training data T; and an estimation model construction unit 22 which constructs the estimation model M by machine learning using the plurality of pieces of training data T. The training data preparation unit 21 prepares a plurality of pieces of training data which include: the feature amount data representing the feature amount of the performance sound of the instrument; first training data which includes the onset data representing the pitch at which the onset exists; feature amount data representing the feature amount of a generated sound by a sound source different from the instrument; and second training data which includes the onset data representing that the onset does not exist.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2021,JPO&INPIT