Acoustic Management Module for Vehicle Audio Interference
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Solution Overview
Problem
In modern vehicles, the increasing diversity of audio and voice processing functions often leads to unintended interactions and adverse side effects when operated simultaneously, resulting in competition and interference, which can cause undesirable audible artifacts, increased costs, weight, and power consumption due to duplicated sub-functions and separate system implementations.
Innovation Solution
An acoustic management module that receives and modifies control parameters from multiple audio processing modules to manage their interactions, ensuring mutually compatible operation by adjusting parameters to prevent interference, such as ignoring voice signals in overlapping frequency ranges to prevent miscalculations in active noise control functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple audio processing modules operate simultaneously, then diverse audio and voice processing functions are provided, but unintended interactions and interference occur resulting in adverse side effects
Solution Approach 1:
An acoustic management module is introduced as an intermediary between multiple audio processing modules. This mediator receives control parameters from various audio processing modules, determines interactions between them, and modifies parameters to prevent harmful interactions. The acoustic management module acts as a central coordinator that enables diverse audio functions to operate simultaneously without interference, resolving the contradiction between versatility and reliability.
2Adaptability or versatility
If separate systems are used for different audio processing functions, then each function can be independently implemented, but duplication of sub-functions occurs resulting in increased cost, weight, and power consumption
Solution Approach 1:
Multiple separate audio processing systems are merged into a unified architecture where an acoustic management module coordinates control parameters across all audio processing functions. By combining the management layer while allowing functional modules to operate independently, the system eliminates duplication of sub-functions such as noise suppression and echo cancellation, reducing overall system complexity, cost, weight, and power consumption while maintaining versatility.
3Ease of operation
If control parameters are not adjusted for interactions, then audio processing modules operate independently, but undesirable audible artifacts occur due to interference
Solution Approach 1:
The acoustic management module implements a feedback mechanism where control parameters from audio processing modules are continuously monitored, interactions are determined based on these parameters, and modifications are made and fed back to the modules. This closed-loop control ensures that while modules operate independently with ease, their interactions are continuously managed to prevent harmful audible artifacts, resolving the contradiction between operational simplicity and artifact prevention.
Data Source
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AI summary
A system and method for acoustic management that includes improving the sound quality of two or more audio processing modules in an acoustic environment may receive first control parameters from a first audio processing module. Receiving second control parameters from a second audio processing module. An audio processing interaction may be derived between with the first audio processing module and the second audio processing module determined from the first control parameters and the second control parameters. The first control parameters and the second control parameters may be modified responsive to the derived audio processing interaction. The modified first control parameters may be sent to the first audio processing module and the modified second control parameters may be sent to the second audio processing module where the first audio processing module and the second audio processing module may perform any one or more of processing audio captured from an acoustic environment and processing audio to be reproduced in the acoustic environment.