Piano Performance Data Generation Device for Detailed Key Movement Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional piano performance recording and analysis methods, such as the piano roll display, are insufficient in representing the fine details of a performance, limiting the ability to improve playing techniques through analysis.
Innovation Solution
A data generation device that acquires measurement data from piano key, pedal, and hammer movements, and generates display data showing this information along a time axis, using color changes to represent key and pedal behavior, providing a more detailed representation of performance content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional piano roll display methods are used, then the display is simple and easy to understand, but the fine details of performance are insufficient
Solution Approach 1:
The display is segmented into multiple functional regions: a piano roll region showing key depression periods, a key behavior image region showing detailed key movement trajectories, and a pedal behavior image region showing pedal movements. This segmentation allows different aspects of performance to be visualized separately, preserving fine details while maintaining overall comprehensibility.
Solution Approach 2:
The patent adds a vertical dimension to the traditional horizontal time-axis display by introducing key behavior images that show key movement trajectories in the vertical direction. This multi-dimensional approach enables simultaneous visualization of temporal progression and spatial movement details, resolving the contradiction between simplicity and information completeness.
2Measurement precision
If detailed measurement data is displayed, then performance analysis capability is improved, but the ease of operation and understanding is reduced
Solution Approach 1:
Different regions of the display provide different levels of detail appropriate to their function. The piano roll region provides overview timing information, while the key behavior image region provides localized detailed trajectory information. This local differentiation allows users to access detailed measurement precision where needed while maintaining ease of operation in overview regions.
Solution Approach 2:
Visual intermediaries such as colored regions, trajectory lines, and symbolic representations are introduced between the raw measurement data and the user's understanding. These intermediaries translate complex measurement data into visually interpretable forms, maintaining measurement precision while improving ease of operation and interpretation.
Data Source
AI summary
A data generation device includes: an acquisition part configured to acquire measurement data that corresponds to measurement values, obtained in chronological order, corresponding to a behavior of a key or a member coordinating with the key for each of a plurality of keys; and a data generation part configured to generate display data for displaying a screen showing the measurement values corresponding to each of the plurality of keys along a time axis based on the acquired measurement data.