Seat-Position Audio Tuning for Consistent In-Car Frequency Response
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Solution Overview
Problem
Existing audio processing systems in vehicles fail to maintain optimal frequency response and tuning when vehicle seat positions are adjusted, affecting sound quality due to changes in speaker placement and phase relationships.
Innovation Solution
An audio processing system that senses and measures changes in seat position, adjusting tuning parameters such as delay, gain, and equalization to maintain optimal sound quality by mapping detected seat positions to corresponding parameter settings, using sensors and digital signal processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If seat position is adjusted to accommodate driver or front passenger, then ease of operation is improved, but sound tuning quality deteriorates due to altered time delay and phase relationships
Solution Approach 1:
The system dynamically adjusts audio processing parameters based on real-time seat position detection. Sensors continuously monitor seat position, and the audio processor automatically modifies time delay, gain, and equalization parameters to maintain optimal sound tuning regardless of seat configuration
Solution Approach 2:
The system uses sensors to detect seat position and feeds this information back to the audio processor. This feedback loop enables automatic compensation for position changes, maintaining consistent sound quality by adjusting parameters based on actual seat configuration
2Manufacturing precision
If speaker array is fixed on seat backside for center imaging, then sound quality is improved, but adaptability deteriorates when seat position changes
Solution Approach 1:
The system changes audio processing parameters (time delay, gain, equalization) based on detected seat position. This allows the fixed speaker array to maintain optimal performance across different seat configurations by dynamically adjusting signal characteristics rather than physical speaker positions
Solution Approach 2:
The audio processing system is designed to handle multiple seat positions and configurations universally. By implementing position-dependent parameter adjustment, a single fixed speaker array serves multiple functions and maintains effectiveness across various seat arrangements
Data Source
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AI summary
A system and method for tuning an audio system based on a seat position. The system senses and measures any change in seat position from a default seat position and adjusts a set of modified tuning parameters to be applied to the audio system based on the modified seat position. The modified tuning parameters may be mapped to a set of tuning parameters depending on the sensed and measured seat position. Alternatively, the modified tuning parameters may be set somewhere between a minimum set of tuning parameters and a maximum set of tuning parameters based on the sensed and measured seat position.