Electronic Drum Rim Shot Detection via Vibration Comparison
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic percussion instruments face high costs and performance constraints due to the need for multiple switches on the rim section and lack of varied musical tone generation based on striking force detection.
Innovation Solution
An electronic percussion instrument with input means for detecting head and rim vibrations, comparison means to differentiate between vibration sizes, and musical tone generation control means to generate appropriate tones based on vibration ratios or leading edge polarity, allowing for detection and generation of open and closed rim shot methods with a simple and cost-effective circuit configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two switches are disposed on the rim section to detect open and closed rim shots, then the detection accuracy of performance methods is improved, but the device complexity and cost increase
Solution Approach 1:
The patent combines the detection functions for both open rim shots and closed rim shots into a single switch SW1 on the rim section. The same switch detects different performance methods by analyzing the timing and combination of signals from the head sensor and rim sensor, eliminating the need for separate switches for each detection function.
Solution Approach 2:
The single switch SW1 on the rim section serves multiple detection functions: it detects both open rim shots (when activated simultaneously with the head sensor) and closed rim shots (when activated alone). This multi-functional switch replaces what would traditionally require multiple specialized switches, reducing device complexity while maintaining detection accuracy.
2Measurement precision
If multiple switches are used on the rim section to differentiate performance methods, then the detection capability is improved, but the ease of operation deteriorates as performers must differentiate between multiple switches
Solution Approach 1:
The patent merges all rim shot detection functions into a single switch SW1, allowing performers to execute both open and closed rim shots using the same physical switch. This eliminates the operational burden of differentiating between multiple switches while the system automatically distinguishes performance methods through signal timing and combination analysis.
3Device complexity
If only basic vibration detection is implemented, then the device complexity is reduced, but the adaptability of musical tone generation to different performance methods is limited
Solution Approach 1:
The patent uses parameter changes in the vibration signals (amplitude, timing, duration) from the head sensor and rim sensor to differentiate between performance methods. By analyzing these parameter variations, the system generates appropriate musical tones for open rim shots, closed rim shots, and other techniques using a simple circuit configuration without requiring complex hardware for each tone type.
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
Enables reliable detection and generation of musical tones corresponding to performance methods, reducing costs and enhancing performance flexibility with varied timbres based on vibration ratios and polarity detection.
Implementation Method 1
a head sensor that detects the vibration of the head section
Implementation Method 2
a rim shot sensor that detects the vibration of the rim section
Data Source
AI summary
An electronic percussion instrument includes input means, comparison means, and musical tone generation control means. The input means allows for the input of a vibration of a head section and a vibration of a rim section that have been detected by a striking detection section. The comparison means allows for a comparison of a size of the vibration of the head section and a size of the vibration of the rim section. The musical tone generation control means allows for controlling a generation of a musical tone based on a result of a comparison by the comparison means such that the musical tone corresponds either to the vibration of the head section or to the vibration of the rim section. In those cases where the musical tone corresponds to the vibration of the rim section, the generation of the musical tone can be further controlled.