Electronic Percussion Instrument Striking Surface Sensor Control
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Solution Overview
Problem
Conventional electronic percussion instruments lack the ability to accurately control sound generation based on the strength and position of striking operations, leading to limited expressive capabilities.
Innovation Solution
An electronic percussion instrument equipped with slapping detection units to detect the strength and place of slapping on the striking surface, contact detection units to detect hand contact, and a sound control unit to adjust sound parameters such as loudness and pitch, allowing for dynamic sound control based on the detected inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional sensor units are used to detect striking operations, then basic sound detection is achieved, but the ability to accurately control sound generation based on strength and position is limited
Solution Approach 1:
The striking surface is divided into multiple detection regions with different sensor units. Each sensor unit detects striking operations in its specific region, enabling position-dependent sound control. This segmentation allows the system to distinguish between different striking locations and apply appropriate sound processing to each region.
Solution Approach 2:
Different sensor units are assigned different detection functions based on their location. For example, certain regions detect only striking operations while others detect both striking and contact operations. This local differentiation enables the system to control sound generation with high precision based on the specific position and type of input.
2Adaptability or versatility
If multiple sensor units are added to improve detection capability, then sound control accuracy is improved, but device complexity increases
Solution Approach 1:
The sensor units are designed to perform multiple functions. Each sensor unit can detect both striking operations and contact operations depending on the detection settings. This multi-functionality reduces the need for separate specialized sensors, thereby controlling device complexity while maintaining high adaptability for different sound control scenarios.
Solution Approach 2:
The detection characteristics of sensor units are made dynamic and adjustable. The system can switch between different detection modes (striking detection, contact detection, or both) based on the playing situation. This dynamic configuration allows the instrument to adapt to various musical expressions without requiring fixed complex hardware for every possible scenario.
3Adaptability or versatility
If real-time sound parameter adjustment is implemented, then expressive capability is enhanced, but processing complexity increases
Solution Approach 1:
Sound parameters are pre-configured for different detection scenarios and positions. When a striking or contact operation is detected, the processor immediately applies the pre-determined sound processing parameters corresponding to that position and operation type. This preliminary preparation of sound parameters reduces real-time processing complexity while maintaining high expressive capability.
Solution Approach 2:
The system implements feedback control where the detected striking strength and position information is continuously fed back to the sound generation system. This feedback loop enables real-time adjustment of sound parameters (volume, pitch, timbre) based on the actual playing input, enhancing expressive capability while using efficient feedback-based control algorithms to manage processing complexity.
Data Source
AI summary
An electronic percussion instrument to control generated sound in accordance with operation to the striking surface includes: a first sensor configured to detect a slapping operation on the striking surface; a second sensor configured to detect a contact operation to the striking surface; and a processor configured to control sound generated in response to detection of a slapping operation by the first sensor in accordance with a place of a contact operation to the striking surface detected by the second sensor.