Aviation Audio Cueing for Source Identification
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Solution Overview
Problem
Conventional aviation communication systems fail to notify users of changes in audio sources, leading to potential missed important information, as users may not immediately detect changes from high-priority sources like control towers or emergency broadcasts while listening to secondary audio.
Innovation Solution
An audio system with a transceiver and controller that outputs distinct audio cues when switching between different channel frequencies, ensuring users are informed of the current audio source, with cues being different for each source and potentially continuous or periodic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the system outputs audio signals from multiple channel frequencies simultaneously, then the system can receive and process multiple audio sources, but the user cannot immediately detect changes in audio source
Solution Approach 1:
The patent applies auditory analogues of color changes by using distinct audio cues (different tones, patterns, or sounds) to indicate different audio sources. When the system switches between channel frequencies, it outputs specific audio cues that alert the user to the change, making the invisible frequency transition visible through audible signals.
Solution Approach 2:
The system provides feedback to the user about the current audio source through audio cues. This feedback loop ensures the user is continuously informed about which channel is active, allowing them to track changes in audio source without having to actively monitor frequency transitions.
2Reliability
If the system continuously monitors multiple channel frequencies, then important audio signals can be detected, but the user may miss important information when switching between sources
Solution Approach 1:
The system performs preliminary action by outputting audio cues before and during the transition between audio sources. This advance notification ensures the user is prepared for the switch and doesn't miss critical information, as the cue is emitted in anticipation of or during the source change.
Solution Approach 2:
The system continuously provides feedback about the active audio source through distinct audio cues. This ongoing feedback ensures the user remains informed during transitions, preventing information loss while maintaining reliable detection of important signals from any channel.
3Difficulty of detecting and measuring
If the system uses distinct audio cues for each channel frequency, then user awareness of source changes is enhanced, but the system complexity increases
Solution Approach 1:
The controller performs multiple functions using a unified approach: it monitors multiple channel frequencies, identifies the active source, generates appropriate audio cues, and outputs them to the user. This multi-functionality reduces the need for separate dedicated components for each function, managing complexity while achieving enhanced user awareness.
Data Source
AI summary
An audio system may comprise a transceiver configured to receive, detect, and transmit audio signals on a first channel frequency and to receive and detect audio signals on at least one additional channel frequency. The at least one additional channel frequency may include a second channel frequency. The system may include a controller configured to output a first audio cue while outputting audio signals received from the at least one additional channel frequency, to output a second audio cue at a time when the controller begins outputting an audio signal received from the first channel frequency, and to output a third audio cue at a time when the controller begins outputting an audio signal received from the second channel frequency. The first, second, and third audio cues may be different from one another.