Electronic Musical Instrument Reed With Tip-Projected Sensor Electrodes
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Solution Overview
Problem
Existing electronic musical instruments with reed-based sensors face issues with noise interference affecting the accurate determination of lip position, leading to unreliable tone control.
Innovation Solution
A reed for electronic musical instruments featuring a substrate with a plurality of sensor electrodes arranged from the tip to the base, each projecting towards the tip, and a processor that determines lip position based on sensor output, enabling noise-resistant tone control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a plurality of pressure sensors are arranged on the reed to detect lip position, then the ability to control tone is improved, but the determination of lip position becomes susceptible to noise interference
Solution Approach 1:
The reed is divided into multiple sensor regions (first sensor region and second sensor region) with different sensor arrangements. The first sensor region has sensors arranged to detect lip position, while the second sensor region has sensors arranged to detect tongue position. This segmentation allows independent optimization of each region's detection function, improving overall measurement precision while maintaining tone control capability.
Solution Approach 2:
A determination unit acts as an intermediary between the sensors and the tone control system. This determination unit processes the sensor outputs to accurately determine lip position by filtering out noise and distinguishing between lip contact and tongue contact signals. The intermediary processing layer resolves the contradiction by extracting accurate position information from noisy sensor data.
2Difficulty of detecting and measuring
If sensors are made sensitive to detect lip contact, then detection capability is improved, but false detection due to noise increases
Solution Approach 1:
The determination unit uses feedback from multiple sensor readings to reliably determine lip position. By continuously monitoring sensor outputs and comparing them against expected patterns, the system can distinguish between actual lip contact and noise-induced false signals. This feedback mechanism maintains high detection sensitivity while improving reliability by filtering out false detections.
Solution Approach 2:
The system changes the spatial arrangement parameters of sensors in different regions. The first sensor region uses a configuration optimized for lip detection, while the second sensor region uses a different configuration. By varying sensor parameters (position, arrangement) across regions, the system achieves both high sensitivity and reliability for different detection purposes.
Data Source
AI summary
The present invention provides a reed for an electronic musical instrument and an electronic musical instrument in which determination of lip position is not susceptible to the influence of noise and the like. In one embodiment of the present invention, an electronic musical instrument is provided with a reed and a plurality of sensor electrodes in the reed, arranged next to one another from a tip side of the reed towards a base side of the reed, each of the sensor electrodes having a center portion projecting towards the tip side of the reed. The lip position of the performer is determined in accordance with the output from the plurality of sensors.