Radio Device Overlapping Audio Priority Replay
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Solution Overview
Problem
Public safety officers using multi-watch radio communication devices often experience reduced comprehension and may miss critical information due to overlapping audio streams from multiple talk groups, which existing devices fail to effectively manage.
Innovation Solution
A radio communication device with multi-watch receivers that detects overlapping audio streams and replays high-priority messages by determining message priority based on content, channel, quality, sender, and volume, and selectively replays messages sequentially or with side tones to enhance intelligibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple audio streams are played simultaneously through separate speakers, then the ability to monitor multiple talk groups is improved, but the comprehension of overlapping calls deteriorates
Solution Approach 1:
The system performs preliminary detection of overlapping audio streams before playback, identifies high-priority messages in advance, and prepares to replay them. This preliminary action allows the system to preemptively handle the information loss problem by detecting overlaps and triggering replay mechanisms before the user misses critical information.
Solution Approach 2:
The system implements a feedback mechanism where overlapping audio streams are detected, analyzed for priority, and then replayed through the audio output. This closed-loop feedback ensures that critical information is recovered and presented to the user, resolving the comprehension issue while maintaining multi-talk group monitoring capability.
2Device complexity
If audio streams are combined and played through a single speaker, then device complexity is reduced, but the ability to distinguish between different talk groups deteriorates
Solution Approach 1:
The system applies local quality by treating different audio streams differently based on their priority and overlap status. High-priority overlapping messages are selectively replayed with distinctive audio characteristics (such as side tones or volume adjustments), while normal-priority streams are played without modification. This localized differentiation maintains simplicity while preserving critical information distinction.
3Loss of information
If all overlapping messages are replayed, then information completeness is improved, but the ability to identify critical information deteriorates
Solution Approach 1:
The system changes parameters such as audio volume, frequency modulation, or addition of side tones when replaying high-priority messages compared to normal-priority messages. These parameter changes create audible distinctions that help users immediately identify which replayed message contains critical information, resolving the precision problem while maintaining information completeness.
Data Source
AI summary
A method and apparatus are provided by which a radio communication device with multi-watch receivers improves the comprehension of a high-priority message when the high-priority message is overlapped in time with a normal-priority message. A first receiver of the radio communication device receives a first incoming message over a first channel, and a second receiver of the radio communication device receives a second incoming message over a second channel. The radio communication device, upon receiving the first and second incoming messages, detects that a portion of the first incoming message overlaps in time with a portion of the second incoming message. The radio communication device further determines whether at least one of the first or the second incoming message is a high-priority message and repeats the determined high-priority message when at least one of the first or second incoming messages is a high-priority message.