Cockpit Audio Segregation via Keyword Recognition
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Solution Overview
Problem
Current sound interfaces in aircraft cockpits merge multiple audio streams, making it difficult for pilots to focus on specific messages due to distractions and unclear sources, potentially leading to misinterpretation or ignoring critical alerts.
Innovation Solution
An intelligent audio message segregation system that uses keyword recognition, priority classification, and spatial audio processing to isolate and prioritize audio messages based on aircraft identifiers, distance, and trajectory, allowing for adaptive sound level and spatialization adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple audio streams are merged into a single stereo sound output, then the system complexity is reduced and all channels are transmitted, but pilots cannot focus on specific messages and may misinterpret or ignore critical alerts
Solution Approach 1:
The patent segments the merged audio stream by identifying and separating different audio sources (ATC, ATIS, other aircraft) based on keyword recognition. Each audio message is tagged with metadata indicating its source and priority, allowing pilots to selectively focus on specific channels while maintaining the ability to access all streams when needed.
Solution Approach 2:
The patent introduces an intermediary audio processing system that sits between the multiple audio streams and the pilot's headphones. This intermediary layer performs keyword recognition, message segmentation, and selective amplification/attenuation, acting as a mediator that organizes the chaotic audio environment without requiring direct pilot intervention.
2Adaptability or versatility
If physical control stations like ACP or RMP are used to select reception channels and manage sound levels, then audio message segregation is achieved, but the segregation requires continuous pilot intervention and remains fixed once adjusted
Solution Approach 1:
The patent implements a self-service audio prioritization system that automatically identifies, segments, and prioritizes audio messages based on predefined keywords and message types. The system autonomously adjusts audio levels and routing without requiring pilot intervention, adapting dynamically to changing flight conditions and message priorities.
Solution Approach 2:
The patent dynamically changes audio parameters (volume levels, routing, prioritization) based on real-time analysis of incoming audio streams. The system automatically adjusts the importance weighting of different message types and sources, changing operational parameters without pilot input to maintain optimal audio presentation.
3Loss of information
If traditional audio control panels are used, then volume settings can be adjusted for different channels, but the segregation is only based on volume and not on the actual content or importance of messages
Solution Approach 1:
The patent implements feedback loops where the audio processing system continuously monitors incoming streams, recognizes keywords, identifies message sources, and adjusts audio presentation accordingly. The system provides feedback to itself about message importance and source identity, automatically routing and prioritizing information to prevent loss of critical data.
Solution Approach 2:
The patent replaces the mechanical volume-adjustment system of traditional control panels with an intelligent digital processing system. Instead of relying on pilots to manually adjust volumes based on experience, the system uses automated keyword recognition, source identification, and algorithmic prioritization to preserve information clarity.
4Adaptability or versatility
If spatialization of sounds is applied, then sound directionality is improved, but the technique does not meet operational needs of pilots and is not compatible with current avionic systems
Solution Approach 1:
The patent creates a universal audio processing system that works with existing avionic architectures while providing enhanced functionality. The system integrates keyword recognition, message segmentation, and selective prioritization into a framework that can operate with current headphones, speakers, and control panels, making it compatible across different aircraft types without requiring complete system replacement.
Data Source
Figure 1
AI summary
The general field of the invention is that of audio message segregation systems in the cockpit of a first aircraft. Said system (10) comprises: means for receiving and recording (11) audio messages; a database of keywords for audio messages (12, 13); means for recognizing (14) the keywords of audio messages; means for separating (14) audio messages according to said keywords; means for classifying (15) messages according to a priority order; means for processing (15) audio messages according to said priority order; means for transmitting messages processed according to said priority order; means for listening (16) to audio messages.