Bassoon Octave Key System Simplifies Intonation Control
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Solution Overview
Problem
Instruments in the bassoon family face intonation issues due to the complexity of existing octave key systems, which require a large number of intricate and precisely installed keys, rods, bridges, and pads to accommodate stable standing waves of precise and consistent pitch.
Innovation Solution
An improved octave key system for bassoon instruments featuring a vent nib disposed through a side wall of a wing joint component, actuated by a thumb-actuated octave key with a sealing pad and whisper key pad connected by rods and bridges, allowing for simplified control of standing wave resonation by sealing or unsealing the vent nib.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the Weisberg System is used to improve intonation, then pitch stability is improved, but device complexity increases due to requiring a large number of intricate keys, rods, bridges, and pads
Solution Approach 1:
The patent combines multiple functions into a single integrated octave key mechanism. The simplified octave key system merges the functions of multiple separate keys, rods, bridges, and pads into one unified structure that accomplishes the same intonation correction goals without requiring numerous discrete components.
Solution Approach 2:
The simplified octave key system is designed to perform multiple functions with a single mechanism. It can accommodate stable standing waves of precise and consistent pitch across different positions while using fewer controls, making the system more versatile and easier to operate.
2Measurement precision
If a large number of intricate controls are used to achieve precise pitch, then intonation accuracy is improved, but ease of operation deteriorates due to complicated finger movements
Solution Approach 1:
The patent reduces the number of discrete controls by merging multiple functions into a single octave key mechanism, thereby simplifying finger movements while maintaining the ability to achieve precise pitch control through a more ergonomic and less complex interface.
3Measurement precision
If multiple pads and keys are installed to control standing waves, then pitch control precision is improved, but manufacturing precision requirements increase due to intricate installation
Solution Approach 1:
The simplified octave key system consolidates multiple precisely-installed components into fewer integrated elements, reducing the cumulative tolerance stack-up and installation complexity while maintaining the ability to control standing waves and achieve precise pitch control.
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
The improved octave key system reduces the complexity of controls, allowing for easier pitch adjustment and improved intonation with fewer controls, enhancing playability, particularly in musical passages requiring precise finger movements.
Implementation Method 1
one tube of fixed length cannot possibly accommodate stable standing waves of precise and consistent pitch
Data Source
AI summary
The present disclosure provides improved octave key systems for use with (e.g., incorporation into) an instrument in the bassoon family.