AI Noise Suppression Switching for TX and RX Audio Channels
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Solution Overview
Problem
Edge devices, such as battery-powered wearable devices, lack the capability to simultaneously apply artificial intelligence-based noise suppression techniques to both transmitted and received audio signals due to limited power and processing resources.
Innovation Solution
A system utilizing AI-based noise suppression techniques that selectively processes either the transmitted (TX) or received (RX) audio signal by dynamically identifying a targeted signal for processing, employing switching devices and a controller to route signals to a processing circuit, while bypassing non-targeted signals to conserve resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AI-based noise suppression is applied to both TX and RX signals simultaneously, then audio quality is improved, but power consumption and processing resource usage increase beyond edge device capabilities
Solution Approach 1:
The patent applies AI-based noise suppression selectively to only one signal path (either TX or RX) at a time, rather than processing both simultaneously. The controller determines which signal path requires processing based on current operational conditions, applying processing power partially to one path while bypassing the other, thus reducing overall power consumption while still improving audio quality in the processed path.
Solution Approach 2:
The system dynamically changes the processing state parameter of the switching devices based on operational conditions. The controller monitors signals and adjusts the routing state to direct processed signals through the AI processing circuit when needed, and bypass them when processing is not required, thereby adapting power consumption to actual audio quality needs.
2Reliability
If AI-based noise suppression is applied to both TX and RX signals simultaneously, then audio quality is improved, but processing resources are exceeded
Solution Approach 1:
The patent implements partial processing by selectively applying AI noise suppression to only one signal path at a time. The controller evaluates current signal conditions and routes only the necessary signal through the complex AI processing circuit, while allowing the other signal to bypass processing, thus reducing processing resource usage while maintaining adequate audio quality.
Solution Approach 2:
The switching devices act as intermediaries between the signal paths and the AI processing circuit. They dynamically route signals through the processing circuit or bypass it based on controller decisions, managing the complexity burden by controlling which signals undergo intensive processing at any given time.
3Productivity
If the system dynamically switches between processing TX and RX signals, then processing efficiency is improved, but system complexity increases
Solution Approach 1:
The switching devices are designed with multi-functionality, capable of routing both TX and RX signals through the same AI processing circuit or bypassing it, depending on current needs. This universal routing capability allows a single switching mechanism to handle dynamic signal processing requirements efficiently without requiring separate dedicated paths for each signal type.
Solution Approach 2:
The system employs dynamic switching control where the state of the switching devices changes in real-time based on signal conditions and processing requirements. The controller continuously monitors and adjusts the routing configuration to optimize processing efficiency, making the system adaptive rather than static.
Data Source
AI summary
Herein is presented a system for processing a targeted signal. The system includes a first audio signal input configured to provide a first audio signal; a second audio signal input configured to provide a second audio signal; at least one switching device coupled to the first audio signal input and the second audio signal input, and configured to provide the targeted signal to the processing circuit, the targeted signal being based on the first audio signal or the second audio signal; a processing circuit coupled to the at least one switching device and configured to process the targeted signal; and at least one controller configured to determine a state of the at least one switching device based on one or more of the first audio signal and the second audio signal.