Vehicle Sound Zone Audio Parameter Adjustment
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Solution Overview
Problem
In vehicle sound zones, acoustic energy from combined sound zones can leak or bleed into adjacent zones, causing disturbance to occupants when multiple individuals are listening to the same source, and there is a need to prevent this interference while allowing each occupant to control their own audio experience without using headphones.
Innovation Solution
A system and method that determines combined audio sources for sound zones, adjusts audio parameters based on user inputs, and applies these adjustments to minimize bleed between zones using occupant detection and audio processing algorithms, prioritizing occupied seats and normalizing media sources to ensure a consistent listening experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple occupants listen to the same audio source in combined sound zones, then audio sharing capability is improved, but acoustic energy leakage into adjacent zones increases causing disturbance
Solution Approach 1:
The system applies different audio parameter settings to different sound zones based on their occupancy and source selection status. Each sound zone receives customized audio processing (volume normalization, equalization, spatial positioning) tailored to its specific conditions, allowing combined zones to share sources while maintaining isolation from adjacent zones through localized parameter adjustments.
2Illumination intensity
If acoustic energy from combined sound zones is doubled to maintain volume, then audio quality in combined zones is improved, but interference in adjacent zones worsens
Solution Approach 1:
The system dynamically adjusts audio parameters including volume level, equalization settings, and spatial positioning for each sound zone. When zones are combined, the system applies volume normalization to prevent excessive energy output, and modifies other parameters to maintain audio quality while controlling the spread of acoustic energy into adjacent zones.
3Adaptability or versatility
If individual audio control is provided for each sound zone, then personalization capability is improved, but system complexity increases
Solution Approach 1:
The system implements a unified audio processing framework that handles multiple sound zones simultaneously through centralized control. The same audio source can be routed to multiple zones with automatic parameter adjustment, and the system intelligently manages zone combination and separation based on occupancy detection, reducing the complexity burden while maintaining individual control capabilities.
Data Source
AI summary
A computing device for adjusting audio output in a listening environment having a user interface to select a source, from a plurality of sources, to be played at a sound zone in a plurality of sound zones; A processor receives user input source selections to determine combined sources for the plurality of sound zones and adjust audio parameters for the sound zones having combined sources based on combined sources and individual inputs for audio settings from each sound zone. The processor applies adjusted audio parameters to a sound zone algorithm for the sound zones having combined sources, and outputs audio based on the adjusted sound zone algorithm. A designated occupant may select the sound zones to which the adjusted sound zone algorithm is to be applied.