Adaptive Loudspeaker Compensation for Off-Position Sound Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Incorrect loudspeaker and listener positioning in local reproduction setups often result in degraded sound images, as users frequently neglect standardized configurations, leading to misalignment between intended and perceived audio experiences.
Innovation Solution
An adaptive sound field correction method that dynamically collects positional data of loudspeakers and listeners, applying correction gains and time delays to audio signals to compensate for incorrect positioning, ensuring a desired sound image is maintained regardless of speaker and listener placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users place loudspeakers and position listeners according to non-standardized configurations, then ease of operation is improved, but sound image quality deteriorates
Solution Approach 1:
The system dynamically changes audio signal parameters (gain, time delay, phase) based on detected loudspeaker and listener positions to maintain optimal sound image quality regardless of physical placement configuration
Solution Approach 2:
The patent replaces the need for precise mechanical positioning of loudspeakers with an electronic signal processing system that computationally corrects positioning errors through gain adjustment and time delay compensation
2Manufacturing precision
If standardized loudspeaker configurations are enforced, then sound image quality is improved, but device complexity increases
Solution Approach 1:
The system automatically detects loudspeaker and listener positions and performs real-time signal correction without requiring user configuration or calibration, making the complex positioning compensation transparent to the end user
Solution Approach 2:
The system uses feedback from position detection to dynamically adjust audio signal parameters, creating a closed-loop control system that maintains optimal sound image quality adaptively
3Measurement precision
If dynamic position tracking is implemented, then sound image correction accuracy is improved, but use of energy increases
Solution Approach 1:
The system performs position detection and signal correction at periodic intervals rather than continuously, reducing energy consumption while maintaining adequate correction accuracy for typical usage scenarios
Data Source
AI summary
The disclosure provides an approach for adaptive loudspeaker and listener positioning compensation. A method of adaptively correcting a sound image is provided. The method includes obtaining an audio signal associated with one or more audio channels and each audio channel is associated with a position of an audio source with respect to a reference point within a local reproduction system. The method includes determining dynamic position information. The dynamic position information includes positions of one or more loudspeakers within the local reproduction system relative to the reference point, a position of a listener relative to the reference point, positions of the one or more loudspeakers relative to the listener, or a combination thereof. The method includes applying one or more correction gains and one or more correction time delays to the audio signal based on the dynamic position information and rendering the audio signal to the local reproduction system.