Convertible Sound System Equalization for Acoustic Consistency
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Solution Overview
Problem
Convertible automobile sound systems fail to effectively adjust sound equalization in response to the state of the convertible top, leading to inconsistent audio quality when the top is up or down.
Innovation Solution
A sound system with equalization circuitry that responds to a top state signal to provide specific equalization settings for different configurations, including left and right dash speakers, door speakers, and seat speakers, using phase alignment and delay adjustments to maintain consistent acoustic power distribution across audible frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the convertible top state changes (up or down), then the acoustic environment changes, but the sound equalization remains fixed leading to inconsistent audio quality
Solution Approach 1:
The equalization circuitry dynamically adjusts equalization parameters based on the convertible top state. When the top transitions between up and down positions, the system automatically modifies frequency response characteristics to compensate for changing acoustic environments, ensuring consistent audio quality across both configurations.
Solution Approach 2:
The system changes equalization parameters (frequency response, gain, phase) in response to the convertible top state. Different equalization presets are applied when the top is up versus when it is down, optimizing sound reproduction for each acoustic condition while maintaining reliable audio quality.
2Reliability
If equalization circuitry is added to adjust for top state, then audio quality consistency improves, but device complexity increases
Solution Approach 1:
A sensor detects the convertible top state and provides feedback to the equalization circuitry. This feedback mechanism enables automatic equalization adjustment without manual intervention, improving audio quality consistency while keeping the control system relatively simple through sensor-based state detection.
Solution Approach 2:
The equalization circuitry serves multiple functions: it processes audio signals, adjusts equalization parameters, and responds to convertible top state changes. By integrating these functions into a single system, the patent reduces overall device complexity while achieving reliable audio quality across different top configurations.
Data Source
AI summary
A convertible automobile sound system is responsive to the state of the convertible automobile top for providing equalization to speakers related to the state of the convertible top.