Electronic Musical Instrument Timbre Priority Channel Selection
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Solution Overview
Problem
Users of electronic musical instruments experience a feeling of incongruity when the automatic operation of keys does not match the main melody generated by the instrument, as the timbre settings in MIDI data often assign bass or other non-melodic timbres to specific channels, disconnecting the user's perception of key operation from the musical tone produced.
Innovation Solution
An electronic musical instrument with a data acquisition part, a selector that prioritizes channels based on timbre priority, and an automatic operation part that automatically operates the keyboard keys according to the selected channel's performance information, ensuring that the main melody is matched with the key operation, thereby reducing user incongruity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a specific channel is used for key operation in MIDI data, then the key operation can be controlled, but the timbre may not match the main melody causing user incongruity
Solution Approach 1:
The system changes the selection criterion from fixed channel number to dynamic timbre priority evaluation. By evaluating timbre priority based on performance information and comparing it with stored priority timbres, the system selects the channel that best matches the main melody, resolving the contradiction between operational control and timbre matching accuracy.
Solution Approach 2:
The system uses feedback by comparing the timbre of each channel against stored priority timbres and evaluating their matching degrees. This feedback mechanism allows the system to identify which channel's timbre best matches the main melody and select that channel for key operation, ensuring both controllability and timbre accuracy.
2Extent of automation
If automatic key operation is implemented, then performance can be automated, but the key operation may not synchronize with the main melody
Solution Approach 1:
The system changes from automated operation based on fixed channel assignment to automated operation based on dynamic timbre evaluation. By continuously evaluating which channel's timbre best matches the main melody and selecting that channel for automatic key operation, the system achieves both high automation and precise synchronization with the musical performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively synchronizes the automatic operation of keyboard keys with the main melody, enhancing the user's experience by ensuring that the key operation aligns with the intended musical tone, thus reducing feelings of incongruity and improving the overall musical performance.
Implementation Method 1
a key is operated (automatically operated) by a key drive control part by a solenoid in synchronism with emission of the musical tone
Data Source
AI summary
An electronic musical instrument includes: a keyboard, including a key that allows automatic operation; a data acquisition part, acquiring music data in which one or more channels are provided and performance information containing a timbre is set for each channel; a selector, selecting a channel set with high timbre priority, in which the timbre priority is priority based on the timbre set in the performance information and is set for each channel contained in the music data acquired by the data acquisition part; and an automatic operation part, automatically operating the key of the keyboard based on the performance information of the channel selected by the selector in the music data acquired by the data acquisition part.