Noise Index Detection System for Auditory Pollution Control
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Solution Overview
Problem
In open space office environments, auditory pollution from conversations, meetings, and other noise sources significantly distracts individuals and reduces productivity, with existing noise cancellation systems only mitigating the effect on the listener rather than addressing the source of the noise.
Innovation Solution
A mobile communication device equipped with an audio capture device and voice control interface engine that continuously monitors ambient audio signals, identifies speech, calculates a noise index, and executes communication operations to reduce noise pollution by alerting or reminding speakers to be quieter, and provides recommendations for quieter areas based on location and calendar events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If noise cancelation systems are used to filter background audio signals, then the user's voice clarity is improved, but the auditory pollution from other speakers remains unaffected and continues to distract the user
Solution Approach 1:
The system extracts and identifies specific speech sources from the ambient audio using voice control interface engine, then selectively addresses only those identified speakers through communication operations, separating the harmful auditory pollution from useful communication signals
Solution Approach 2:
The system continuously monitors the noise index and provides feedback through communication operations to identified speakers when noise thresholds are exceeded, creating a closed-loop system that actively reduces auditory pollution rather than passively filtering it
2Measurement precision
If continuous monitoring of ambient audio signals is implemented, then the noise index calculation accuracy is improved, but the device energy consumption increases
Solution Approach 1:
The system implements periodic monitoring of ambient audio signals rather than continuous monitoring, evaluating the noise index at specific intervals triggered by detected speech events or predefined time periods, reducing energy consumption while maintaining measurement accuracy
Solution Approach 2:
The voice control interface engine automatically processes and analyzes the monitored audio signals to identify speakers and calculate noise indices without requiring constant manual intervention or processing, enabling the system to self-regulate its monitoring intensity based on environmental conditions
3Object-affected harmful factors
If the system identifies and communicates with specific speakers to reduce noise, then the auditory pollution is reduced, but the device complexity increases
Solution Approach 1:
The mobile communication device leverages its existing multi-functional capabilities including audio capture, voice control processing, speaker identification, and communication operations to achieve noise reduction, avoiding the need for dedicated hardware by utilizing the device's universal functions
Data Source
AI summary
An electronic device (200) includes a user interface (205), a communication circuit (206), and an audio capture device (212) to receive ambient audio signals from an environment about the electronic device. A voice control interface engine (214) is operable with the audio capture device to process signals received from the audio capture device to identify at least some speech from the ambient audio signals. One or more processors (203) are operable with the voice control interface engine to compute a noise index as a function of the ambient audio signals and the at least some speech. The one or more processors can optionally identify a source of the at least some speech. Where the noise index exceeds a predefined criterion, the one or more processors can execute a communication operation on one or more of the user interface or the communication circuit.