Audio Control for Multi-User Video Conferencing
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Solution Overview
Problem
In multi-user meetings, the activation of multiple microphones in a conference room with a group video conferencing device often leads to acoustic echoing and loud feedback, disrupting the meeting, as participants must manually mute their microphones and turn off speakers to resolve the issue.
Innovation Solution
A method that determines if users are physically present in the same geographical location as the group video conferencing device, using techniques such as GPS, NFC, or calendar entries, to automatically activate a no-audio mode for their devices, disabling microphones and speakers to prevent echoing and feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple microphones and speakers are activated in a conference room, then participants can communicate freely, but acoustic echoing and feedback occur disrupting the meeting
Solution Approach 1:
The system performs preliminary actions by detecting user presence in the conference room before the meeting starts, and proactively disables audio devices (microphones and speakers) on user computing devices in advance. This prevents acoustic echoing and feedback from occurring in the first place, rather than reacting to them after they happen.
Solution Approach 2:
The system enables self-service by automatically detecting which users are physically present in the conference room using location services (GPS, NFC, calendar data) and autonomously disabling their audio devices without requiring manual intervention from the users or the meeting host.
2Object-affected harmful factors
If users manually mute microphones and turn off speakers to prevent echoing, then acoustic feedback is eliminated, but meeting efficiency decreases due to manual intervention requirements
Solution Approach 1:
The system eliminates the need for manual audio device management by implementing self-service functionality. The system automatically detects user presence through location services and calendar integration, then autonomously disables audio devices on participating devices, completely removing the manual intervention burden from users while maintaining acoustic feedback elimination.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring user location data and meeting participation status. Based on this feedback, the system dynamically adjusts audio device states - disabling audio for physically present users and keeping it enabled for remote users - ensuring optimal acoustic conditions throughout the meeting without manual intervention.
3Object-affected harmful factors
If audio devices are automatically disabled for users in the conference room, then acoustic echoing is prevented, but user control and flexibility are reduced
Solution Approach 1:
The system performs preliminary disabling of audio devices only after confirming the user is physically present in the conference room and has not explicitly opted out. This preliminary action is taken before the meeting starts, allowing users who need audio control flexibility to be identified in advance while still preventing echoing for those who don't need it.
Solution Approach 2:
The system applies local quality by treating different users differently based on their specific situation. Audio devices are disabled only for users physically present in the conference room, while users joining remotely retain full audio control. This localized application of the no-audio policy maintains user control flexibility where needed while preventing echoing where necessary.
Data Source
AI summary
A system and method for controlling audio in a multi-user meeting is provided. The method may include determining, using the one or more processing devices, that a group video conferencing device is associated with a multi-user video conference. The method may further include determining, using the one or more computing devices, whether a user associated with the multi-user video conference is located in a geographical location associated with the group video conferencing device. The method may also include, when the user is located in the geographic location of the group video conferencing device, automatically activating, using the one or more computing devices, a no-audio mode for a computing device associated with the user located in the geographical location.