Sound Output Control Apparatus Voice Activity Detection
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Solution Overview
Problem
The increasing number of users participating in voice chat leads to a significant load on both user apparatuses and servers, resulting in decreased service quality and increased operational and communication costs due to elevated communication volumes in sound data transmission.
Innovation Solution
A sound output control system that includes a reception section to receive sound data, a selection section to choose portions of sound data based on voice activity detection and moving averages, and an output section to transmit the selected data, thereby reducing the load and communication volume by selectively outputting and relaying sound data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all pieces of sound data are transmitted to ensure complete voice chat communication, then communication quality is maintained, but communication volume and server load increase significantly
Solution Approach 1:
The patent extracts only the necessary sound data for voice chat communication by using voice activity detection to identify meaningful speech segments and filtering out unnecessary audio data. This extraction is performed at both the client and relay server levels, where the relay server selectively relays only the extracted relevant sound data between users, thereby reducing overall communication volume while maintaining communication quality.
Solution Approach 2:
The patent changes the parameter of data selection by using voice activity detection results and moving averages of sound volumes to determine which sound data pieces should be transmitted. The system dynamically adjusts the selection criteria based on detected voice activity patterns and communication conditions, optimizing the balance between communication quality and data volume reduction.
2Quantity of substance
If voice activity detection and selective sound data transmission are implemented to reduce communication volume, then communication cost decreases, but system complexity increases
Solution Approach 1:
The patent introduces a relay server as an intermediary component that handles the complex tasks of receiving sound data from multiple users, performing voice activity detection, selecting relevant data pieces, and relaying them to appropriate users. This intermediary approach distributes the system complexity to a dedicated server, allowing client devices to remain relatively simple while still benefiting from reduced communication volumes.
3Quantity of substance
If the number of sound data pieces to be relayed is reduced to lower server load, then operational cost decreases, but voice chat service quality deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where the relay server monitors voice activity detection results and moving averages of sound volumes in real-time. Based on this feedback, the system dynamically adjusts the number and selection of sound data pieces to relay, ensuring that service quality is maintained while minimizing server load and operational costs.
Data Source
AI summary
Provided are a sound output control apparatus, a sound output control system, a sound output control method, and a program that can appropriately thin out the output of pieces of sound data. A sound data reception section receives a plurality of pieces of sound data transmitted from transmission apparatuses that are different from each other. A selection section selects a portion of the plurality of pieces of sound data on the basis of at least one of a result of a voice activity detection process performed on each of the pieces of sound data or moving averages of volumes of sounds represented by the pieces of sound data. A sound data transmission section outputs the selected portion of the pieces of sound data.