Conference Call Participant Management and Noise Filtering
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Solution Overview
Problem
Current conference call technologies lack features for dynamically managing participants, implementing privacy controls, filtering background noise, recording specific users, and handling outside calls without leaving the conference call.
Innovation Solution
A conference call system that allows users to add or drop participants, organize them into groups, implement privacy controls, filter out background noise, and manage outside calls through a user interface, utilizing a conference call server communicating with user devices to execute these functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If basic conference call functionality is provided, then three or more individuals can speak simultaneously, but the system lacks participant management capabilities
Solution Approach 1:
A server acts as an intermediary between user devices to manage conference call participants. The server receives participant management requests from user devices and executes these requests, thereby providing complex participant management capabilities without increasing the complexity of individual user devices.
2Adaptability or versatility
If all participants can hear each other freely, then communication is open, but privacy control is lost
Solution Approach 1:
The system implements privacy controls by allowing different audio streams to have different accessibility properties. Specifically, the system can make certain participants' audio streams private (accessible only to themselves) while keeping other streams public (accessible to all participants), thereby providing localized privacy control within the conference call.
3Object-affected harmful factors
If background noise is not filtered, then all audio is captured, but noise interference increases
Solution Approach 1:
The system extracts and removes background noise from the audio streams of participants. By separating the desired speech signal from the unwanted background noise and eliminating the noise component, the system improves audio quality without requiring complex local processing at each user device.
4Adaptability or versatility
If outside calls are not allowed during conference call, then call focus is maintained, but call flexibility is reduced
Solution Approach 1:
The system dynamically manages call states by allowing participants to transition between conference call mode and outside call mode. Participants can receive and answer outside calls during an ongoing conference call, and the system dynamically adjusts the call connectivity to accommodate these transitions without requiring participants to leave the conference call.
Data Source
AI summary
A conference call may be implemented between multiple user devices via a conference call server. A user may use a graphical interface of the user device to communicate with the conference call server and control the conference call in various ways. For instance, the user may add a user device to the conference call, drop a user device from the conference call, organize the user devices into conference call groups, record one or more user devices within the conference call, prevent a user device from hearing the audio input of another user device, filter out background noise from the conference call, and receive a call from outside the conference call without having to leave the conference call.