Voice Filter Bandwidth Limiting for Device Model Sound Quality
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Solution Overview
Problem
Certain wireless communication devices experience undesirably low sound quality during voice-call communications when using wide voice-filter bandwidths due to lack of optimization in hardware, software, and firmware, leading to issues like tinny-sounding effects or poor clarity, even with high-quality wireless coverage.
Innovation Solution
The wireless communication system monitors sound quality and imposes a policy to restrict UEs to use voice-filter bandwidths no wider than a designated bandwidth, specifically limiting UEs with poor sound quality even in good wireless conditions to prevent sound quality degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wide voice-filter bandwidth is used, then voice frequency range is improved, but sound quality deteriorates due to hardware/software/firmware limitations
Solution Approach 1:
The system dynamically changes the voice-filter bandwidth parameter based on UE model identification. When a UE model known to have sound quality issues with wide bandwidth is detected, the system restricts the bandwidth parameter to a narrower range, thereby resolving the contradiction between frequency range and sound quality for that specific device
2Manufacturing precision
If voice-filter bandwidth is restricted, then sound quality is improved, but voice frequency range is reduced
Solution Approach 1:
The system applies different voice-filter bandwidth configurations to different UE models based on their specific characteristics. Instead of a uniform restriction, each UE model receives a customized bandwidth setting that optimizes sound quality for that particular device while maintaining appropriate frequency range
3Manufacturing precision
If monitoring and policy imposition is implemented, then sound quality is improved, but device complexity increases
Solution Approach 1:
The system implements automated monitoring and policy imposition mechanisms that operate without manual intervention. The network automatically identifies UE models, monitors sound quality metrics, and applies appropriate bandwidth restrictions, thereby improving sound quality while minimizing the operational complexity burden
Data Source
AI summary
A method and system to limit voice-filter bandwidth based for a device model based on observed sound quality trend. A system monitors sound quality of voice-call communications coming from various devices and detects based on the monitoring that the sound quality of voice-call communications coming from devices of a particular model tends to be threshold low even when the devices have threshold high quality wireless coverage. In response the system then imposes a policy for devices of that model to restrict the voice-filter bandwidth that they apply—such as by limiting the devices to use a voice-filter bandwidth that is no wider than a designated bandwidth.