Communication Hub for Real-Time Acoustic Safety Monitoring
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Solution Overview
Problem
Many user audio devices, such as headsets, lack built-in capabilities for monitoring and controlling sound pressure levels, leading to potential hearing damage due to exposure to loud noises, and existing solutions often require expensive external devices or sporadic measurements.
Innovation Solution
A communication hub is introduced that connects between an audio source and a user audio device, generating metadata on sound pressure levels and transmitting it to a monitoring device for analysis, enabling real-time monitoring and notification of acoustic safety incidents, and automatically adjusting audio settings to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sound pressure level monitoring and control capabilities are built into user audio devices, then acoustic safety is improved, but device complexity and cost increase
Solution Approach 1:
The patent introduces a communication hub as an intermediary device that centralizes the sound pressure level monitoring and control functionality. Instead of embedding complex monitoring hardware in each audio device, the hub acts as a mediator that receives audio signals, analyzes SPL levels, and provides feedback to control the output, thereby improving acoustic safety without increasing complexity at the user device level
Solution Approach 2:
The communication hub is designed as a universal platform that can serve multiple functions: it monitors sound pressure levels, controls audio output to ensure safety compliance, and interfaces with various user audio devices. This multi-functional approach consolidates safety monitoring capabilities into a single device that benefits multiple users and devices, avoiding the need for each individual audio device to have built-in monitoring
2Measurement precision
If expensive external devices are used for SPL monitoring, then measurement accuracy is improved, but cost and accessibility worsen
Solution Approach 1:
The patent employs digital copying of audio signals for monitoring purposes. Instead of requiring expensive physical measurement devices, the system creates a digital copy of the audio signal flowing through the communication hub and analyzes this copy to determine sound pressure levels. This approach maintains measurement accuracy while dramatically reducing cost and improving accessibility, as digital signal analysis is much cheaper than physical SPL measurement equipment
Solution Approach 2:
The patent replaces mechanical/physical SPL measurement devices with electronic/digital signal processing. By substituting physical measurement equipment with digital analysis of audio signals, the system achieves comparable or superior measurement precision while eliminating the need for expensive external hardware, thereby reducing cost and improving accessibility
3Device complexity
If sporadic measurements are taken for SPL monitoring, then device complexity is reduced, but reliability of safety monitoring worsens
Solution Approach 1:
The communication hub implements continuous sound pressure level monitoring by constantly analyzing the audio signal stream that passes through it. Rather than taking periodic snapshots, the system maintains continuous oversight of SPL levels, ensuring that safety violations are detected in real-time. This continuous monitoring approach significantly improves reliability while the centralized architecture keeps device complexity manageable
Data Source
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AI summary
A communication hub for a communication system and a communication system are provided. The communication hub comprises at least an audio I/O interface for connection with one or more audio sources to at least receive an input audio signal, a user device interface for connection with at least one user audio device, a processor to provide a user input audio signal to the user device interface from the input audio signal, and a reporting module, configured to generate metadata of at least the input audio signal and to provide the metadata to a monitoring device of the communication system.