Neural Network Performance Analysis for Musical Expression Inference

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Solution Overview

Problem

Existing technologies fail to effectively infer and analyze the unique performance tendencies of musicians during musical piece performances, which are crucial for imparting specific musical expressions.

Innovation Solution

A performance analysis method that generates information related to a user's performance tendency by processing observed performance information and inferred information using a computer system equipped with a control device, storage device, and performance apparatus, utilizing neural networks to predict performance tendencies based on candidate tendencies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If performance analysis is conducted to infer unique performance tendencies, then accuracy of musical expression analysis is improved, but system complexity increases

Engineering Contradiction:
Improveaccuracy of performance tendency inferenceVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a neural network as an intermediary component that processes observed performance information and generates inferred performance information. This neural network acts as a mediator between the raw performance data and the performance tendency analysis, enabling accurate inference while encapsulating the complexity within a specialized module rather than distributing it throughout the entire system.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional mechanical or rule-based analysis systems with a neural network-based computational system. This substitution allows for more sophisticated pattern recognition and inference of performance tendencies that would be difficult to achieve with conventional methods, thereby improving measurement precision while managing complexity through computational efficiency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Speed

If performance information is processed in real-time for synchronized operations, then responsiveness is improved, but computational load increases

Engineering Contradiction:
Improveresponse speedVSAvoidcomputational load
Core Design Contradiction:
SpeedVSPower

Solution Approach 1:

The patent performs preliminary processing of performance information by generating inferred performance information in advance based on observed performance patterns. This preliminary action prepares the system for real-time operations by pre-computing performance tendencies, reducing the computational burden during actual synchronized operations while maintaining high response speed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses the observed performance information itself to generate the inferred performance information through the neural network, allowing the system to serve its own analytical needs. This self-service approach enables real-time processing by utilizing the input data to produce the necessary output without requiring external computational resources, thereby managing computational load efficiently.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11600252B2Performance analysis method
Publication Date: 2023.03.07 YAMAHA CORP
  • US11600252B2 patent drawing
  • US11600252B2 patent drawing
  • US11600252B2 patent drawing

AI summary

A performance analysis method according to the present invention includes generating information related to a performance tendency of a user, from observed performance information relating to a performance of a musical piece by the user and inferred performance information that occurs when the musical piece is performed based on a specific tendency.