Audio Transducer Signal Compensation for Pressure Deviations
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Solution Overview
Problem
Waterproof electronic devices face challenges in maintaining optimal audio output due to sudden pressure disparities across the speaker membrane, leading to mechanical offset and degradation in audio quality, as existing solutions either fail to compensate effectively or introduce adverse effects on audio output.
Innovation Solution
The system analyzes electrical signals transmitted to the speaker, determines atypical displacement, and modifies these signals to compensate for the displacement by adjusting the gain or DC component, thereby limiting noise degradation without mechanical adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical components are added to compensate for pressure deviations, then audio quality is improved, but device complexity and size increase
Solution Approach 1:
The patent replaces mechanical pressure compensation components with an electrical signal processing system. The computing system detects pressure-induced membrane displacement by analyzing audio signals and compensates for it through digital signal processing, eliminating the need for mechanical compensation mechanisms while maintaining audio quality.
Solution Approach 2:
The patent introduces software/algorithms as an intermediary between the pressure deviation problem and the audio output. The computing system uses signal analysis and processing algorithms to detect and compensate for membrane displacement caused by pressure changes, serving as a non-mechanical mediator to resolve the contradiction.
2Reliability
If mechanical components are added to compensate for pressure deviations, then audio quality is improved, but device size increases
Solution Approach 1:
The patent substitutes mechanical compensation components with software-based signal processing implemented in existing computing system hardware. This approach maintains audio quality under pressure deviations without requiring additional physical space for mechanical components.
3Reliability
If mechanical components are added to compensate for pressure deviations, then audio quality is improved, but manufacturing cost increases
Solution Approach 1:
The patent replaces costly mechanical compensation mechanisms with software algorithms running on existing computing system hardware. This reduces manufacturing costs by eliminating additional mechanical components while maintaining the ability to compensate for pressure-induced audio degradation.
4Reliability
If pressure compensation is implemented, then audio quality under pressure deviation is improved, but response time to pressure changes may be reduced
Solution Approach 1:
The patent implements continuous real-time analysis of audio signals to detect membrane displacement caused by pressure deviations. The computing system continuously processes signals and applies compensation without interruption, ensuring both rapid response to pressure changes and maintained audio quality.
Solution Approach 2:
The patent employs a feedback mechanism where the computing system analyzes audio signals, detects pressure-induced membrane displacement, and adjusts compensation in real-time based on the detected conditions. This closed-loop approach ensures rapid response to pressure changes while maintaining audio quality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively limits audio degradation caused by pressure deviations without adding mechanical components, reducing device size and cost, and maintaining audio quality by electrically compensating for membrane displacement.
Implementation Method 1
determining, by a computing system and based on the analyzing the one or more signals, an inductance of electronic components affecting the one or more signals
Implementation Method 2
modifying, by the computing system and based on using the determined inductance to determine that atypical displacement of the membrane of the audio transducer has occurred, the one or more signals to compensate for the atypical displacement
Data Source
AI summary
In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products for analyzing, by a computing system, one or more signals transmitted to an audio transducer. The computing system determines, based on the analyzing the one or more signals, an inductance of electronic components affecting the one or more signals. The computing system modifies, based on using the determined inductance to determine that atypical displacement of the membrane of the audio transducer has occurred, the one or more signals to compensate for the atypical displacement of the membrane of the audio transducer.