Audio Volume Control via Device Identification to Prevent Howling
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Solution Overview
Problem
Existing remote communication systems face challenges in effectively adjusting audio volume, particularly in conference settings, leading to howling issues due to the interaction between devices like electronic whiteboards and meeting devices, which conventional methods often misidentify or fail to correctly mute.
Innovation Solution
A system comprising a meeting device and an electronic whiteboard that uses a two-dimensional code to communicate participation information, allowing the terminal apparatus to accurately identify and mute the electronic whiteboard, preventing howling by ensuring only the appropriate device is muted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional methods are used to mute devices in a conference room, then howling may be reduced, but the wrong device may be muted or misidentified
Solution Approach 1:
The terminal apparatus receives feedback information from the meeting device that includes identification information of the electronic whiteboard. This feedback mechanism allows the terminal apparatus to accurately identify which device to mute based on real-time status information provided by the meeting device, preventing misidentification and ensuring the correct device is selected for volume adjustment.
Solution Approach 2:
The meeting device acts as an intermediary that collects identification information from multiple devices (including the electronic whiteboard) and relays this information to the terminal apparatus. This intermediary role enables the terminal apparatus to make accurate device selections without directly querying each device, thereby preventing misidentification while maintaining system efficiency.
2Adaptability or versatility
If multiple devices are located in a conference room, then communication functionality is enhanced, but howling occurs due to device interaction
Solution Approach 1:
The system applies local quality control by adjusting the volume of specific devices (electronic whiteboard, meeting device) individually based on their roles and identification information. Rather than a blanket mute approach, the terminal apparatus selectively controls audio output from each device, preventing howling while preserving the communication functionality of other devices in the conference room.
Solution Approach 2:
The system changes the audio volume parameter of specific devices dynamically. The terminal apparatus receives identification information, determines which device should be muted, and then adjusts the volume parameter of that specific device rather than all devices. This selective parameter adjustment eliminates howling while maintaining the versatility of the multi-device communication system.
3Measurement precision
If device information is transmitted through the system, then accurate device identification is achieved, but communication steps increase
Solution Approach 1:
The meeting device performs preliminary action by collecting and holding identification information of the electronic whiteboard and other devices in advance. When the terminal apparatus needs to mute a device, the information is already prepared and available, eliminating the need for time-consuming queries and negotiations during the muting operation. This preliminary preparation maintains high identification accuracy while minimizing communication time.
Data Source
AI summary
A system includes a first apparatus and a second apparatus. The first apparatus includes first circuitry to input and output audio, acquire information on the second apparatus output from the second apparatus, and transmit the information on the second apparatus acquired from the second apparatus to a terminal apparatus. The second apparatus includes second circuitry to input and output audio, output the information on the second apparatus, and in response to a request for adjusting audio volume of the second apparatus received from the terminal apparatus via a network, adjust the volume of at least one of the audio input by the second apparatus or the audio output by the second apparatus.