Wind Synthesizer Controller Using Acoustic Expiration Detection
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Solution Overview
Problem
Traditional pipe-type electronic musical instruments lack the tactile experience of playing a customary instrument and struggle to accurately capture scale and volume information due to button-type switches, making them less engaging to play.
Innovation Solution
A wind synthesizer controller that uses a microphone to measure expiration intensity for volume information and non-contact proximity sensors to detect fingering information, allowing for accurate note on/off and velocity data, mimicking the playing experience of a customary instrument.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If button-type switches are used for fingering detection, then device complexity is reduced, but measurement precision of fingering information deteriorates
Solution Approach 1:
The patent replaces button-type mechanical switches with non-contact proximity sensors that detect finger presence through electromagnetic fields or other non-contact means. This substitution eliminates mechanical contact while maintaining detection capability, thereby improving measurement precision without significantly increasing device complexity.
2Device complexity
If pressure sensors are used for expiration intensity measurement, then device complexity is reduced, but measurement precision of volume information deteriorates
Solution Approach 1:
The patent replaces pressure sensors with microphones that convert acoustic waves from expiration into electrical signals. This acoustic-to-electrical conversion provides more precise measurement of expiration intensity and volume information while maintaining relatively simple device structure.
3Measurement precision
If non-contact sensors are used for fingering detection, then measurement precision of fingering information is improved, but device complexity increases
Solution Approach 1:
The patent introduces non-contact proximity sensors as intermediary detection devices that sense finger presence without physical contact. These sensors use fields (electromagnetic, capacitive, or other) as intermediaries between the finger and the detection system, enabling precise detection while keeping the overall device structure manageable through integration.
4Measurement precision
If microphone is used for expiration intensity measurement, then measurement precision of volume information is improved, but device complexity increases
Solution Approach 1:
The patent employs a microphone to convert acoustic energy from expiration into electrical signals for measurement. This acoustic detection method provides superior precision in measuring expiration intensity and volume information compared to pressure sensors, while the microphone's compact design minimizes the increase in overall device complexity.
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 precise volume and scale information capture, providing a similar tactile experience to playing a customary instrument while enhancing engagement and accuracy through the use of a microphone for expiration intensity and non-contact sensors for fingering detection.
Implementation Method 1
a microphone detecting a sound generated by flowed in expiration
Data Source
AI summary
There is provided a wind synthesizer controller playable by the same manipulation as that of a customary musical instrument as well as able to obtain accurate scale information and volume information. The wind synthesizer controller includes a microphone, an expiration intensity measuring unit, and a controller. The microphone detects a sound generated by flowed in expiration. The expiration intensity measuring unit measures intensity of the expiration on the basis of a detected sound signal. The controller generates volume information on the basis of the measured expiration intensity. The volume information at least includes note on, note off, and velocity.