Multimedia System Microphone Crosstalk Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In traditional audio-video streaming transmission systems, microphones often suffer from crosstalk interference due to their placement or the need for external connections, which can lead to suboptimal sound collection during video conferences.
Innovation Solution
A multimedia system that connects multiple transmitting-end devices to a receiving-end device, where the receiving-end device outputs control signals to disable microphones of other transmitting-end devices when one is in use, thereby reducing crosstalk interference by automatically switching between silent and non-silent modes based on voice detection or physical button states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple microphones are enabled in traditional audio-video streaming systems, then more sound sources can be captured, but crosstalk interference increases and audio quality deteriorates
Solution Approach 1:
The receiving-end device actively monitors the operational state of microphones in transmitting-end devices and sends control signals back to disable microphones that would cause crosstalk. This feedback mechanism ensures that only one microphone remains active at a time, preventing interference while maintaining the capability to manage multiple transmitting-end devices.
Solution Approach 2:
The system enables microphones in transmitting-end devices based on their operational needs, and the receiving-end device automatically manages the disabling of other microphones. This self-service approach allows the system to autonomously prevent crosstalk without requiring manual intervention, thereby maintaining audio quality while supporting multiple devices.
2Adaptability or versatility
If microphones are placed far from users in general audio-video systems, then device placement flexibility increases, but sound collection quality deteriorates
Solution Approach 1:
The invention extracts the microphone function from the transmitting-end device and places it in the receiving-end device. This extraction allows the transmitting-end device to be positioned flexibly without compromising sound collection quality, as the microphone is now located at the receiving end where it can be optimally positioned near the user.
3Adaptability or versatility
If external microphone devices are connected to electronic devices without built-in microphones, then audio input capability is achieved, but system complexity increases
Solution Approach 1:
The receiving-end device is designed to universally support multiple transmitting-end devices with different configurations (some with built-in microphones, some without). The system automatically manages microphone activation and disabling based on the capabilities of each transmitting-end device, providing a unified solution that works across diverse device types without increasing complexity for individual devices.
Data Source
AI summary
A multimedia system is provided. The multimedia system includes a plurality of transmission devices and a receiving-end device. Multiple transmission devices respectively has a microphone. The receiving-end device is coupled to the transmission devices. When the microphone of one of the transmission devices is enabled, the receiving-end device outputs at least one control signal to at least another one of the transmission devices to disable the microphone of the at least another one of the transmission devices.