Dynamic Performance End Timing for Electronic Musical Instruments
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Solution Overview
Problem
Existing systems for visualizing music performances on electronic musical instruments struggle to accurately determine when to display a final image, leading to disappointment for users, especially children, as the final image may appear during ongoing performance or be delayed, causing stress.
Innovation Solution
A processor in the information processing device determines the output timing for a final image based on the interval between a first and second performance operation, adjusting the determination period dynamically based on the note intervals and performance stability to ensure accurate timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed judgment time is set to determine performance end, then the system is simple to operate, but the accuracy of performance end detection deteriorates for users with varying playing speeds
Solution Approach 1:
The patent applies dynamics by making the determination time dynamic rather than fixed. The system automatically adjusts the determination time based on the actual note intervals detected during performance. This allows the system to adapt to different playing speeds and styles, accurately detecting performance end for both fast and slow players without requiring manual configuration.
Solution Approach 2:
The patent changes the parameter of determination time from a static value to a dynamically calculated value based on note intervals. By analyzing the temporal patterns of note intervals during performance, the system derives an appropriate determination time that fits the specific performance characteristics, thereby improving detection accuracy.
2Loss of time
If the determination time is set short, then the final picture appears quickly after performance, but the final picture may appear during ongoing performance causing user disappointment
Solution Approach 1:
The system uses feedback by continuously monitoring note intervals during performance and using this information to determine when the performance has actually ended. The determination time is set based on the observed playing patterns, creating a feedback loop that ensures the final picture appears at the appropriate moment - neither too early nor too late - thereby maintaining both timeliness and reliability.
3Measurement precision
If the determination time is set long to avoid premature display, then the accuracy of performance end detection improves, but the time from performance end to final picture display increases causing user stress
Solution Approach 1:
By making the determination time dynamic and based on actual performance characteristics, the system achieves high accuracy without requiring excessively long fixed time periods. The determination time adapts to the specific performance, being long enough to capture the true end but not unnecessarily extended, thus balancing accuracy with user experience.
Data Source
AI summary
A method of determining a data output timing, performed by at least one processor in an information processing device for an electronic musical instrument includes, via the at least one processor: obtaining data of a first performance operation on the electronic musical instrument by a user; obtaining data of a second performance operation on the electronic musical instrument by the user; and determining the data output timing for outputting a data to the user based on a time interval between the first and second performance operations.