Electronic Stringed Instrument Feedback Control System
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Solution Overview
Problem
Existing electronic stringed instruments face challenges in maintaining stable feedback performance due to unpredictable feedback sound levels and the need for cumbersome setup and fine-tuning of feedback effects, which limits the performer's ability to control feedback effects during performance.
Innovation Solution
An electronic stringed instrument with integrated feedback control, featuring a pickup for detecting string vibrations, a feedback operator for adjusting feedback levels, and a feedback control device that automatically adjusts tone signal levels to maintain stable feedback, allowing for easy operation and fine-tuning of feedback effects without the need for external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If feedback effect is added to maintain string vibration sustain, then feedback performance is improved, but feedback sound level becomes unpredictable and causes unstable performance
Solution Approach 1:
The patent implements automatic feedback level control by detecting the output signal level and adjusting the feedback amount accordingly. The feedback control device monitors the amplified sound level and dynamically adjusts the feedback signal strength to maintain stable feedback performance, resolving the contradiction between sustaining vibration and maintaining reliability.
Solution Approach 2:
The system performs self-regulation of feedback levels through automatic detection and control. The feedback control device automatically adjusts parameters based on detected signal levels without requiring manual intervention, enabling the system to self-correct unstable feedback conditions while maintaining sustained string vibration.
2Reliability
If manual control of feedback parameters is required to achieve stable feedback, then feedback sound level stability is improved, but operation complexity increases and ease of operation deteriorates
Solution Approach 1:
The feedback control device automatically monitors output signal levels and adjusts feedback parameters without requiring manual intervention. This self-regulating mechanism maintains stable feedback performance while eliminating the need for performers to manually tune feedback parameters, thereby preserving ease of operation.
Solution Approach 2:
The patent replaces manual mechanical adjustment of feedback parameters with automatic electronic control. The feedback control device uses electronic signal detection and processing to automatically regulate feedback levels, substituting manual mechanical control with an automated electronic system that maintains stability without increasing operational complexity.
3Reliability
If external effect devices are used to control feedback, then feedback effect quality is improved, but device complexity increases
Solution Approach 1:
The patent integrates the feedback control functionality directly into the amplifier device, combining the feedback effect processing and automatic level control in a single integrated system. This merging eliminates the need for separate external effect devices while maintaining feedback quality and reducing overall system complexity.
Solution Approach 2:
The amplifier device is designed to perform multiple functions including signal amplification, feedback effect processing, and automatic level control within a single device. This multi-functionality consolidates what would traditionally require separate external devices, reducing system complexity while maintaining high-quality feedback effects.
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 stable and easy performance of feedback effects, allowing musicians to control feedback levels and switch effects on/off arbitrarily, regardless of their position, while preventing unpleasant howling and maintaining string vibration sustain.
Implementation Method 1
a pickup that detects vibration of a string
Implementation Method 2
the strings being plucked are further vibrated by resonance caused by the musical tones (musical tones based on plucking of the strings) emanated from the loudspeaker
Data Source
AI summary
Provided is an electronic stringed instrument comprising: a pickup that detects vibration of a string; a feedback operator used to select a level of feedback effect; a feedback control device that controls to add a feedback effect to a tone signal based on the vibration of the string detected by the string vibration detection device and based on the selected level of feedback effect from the feedback operator; and an output device that outputs the tone signal to which the feedback effect is added by the feedback control device.