Communication System Voice Quality Evaluation Network Load Reduction
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Solution Overview
Problem
Conventional voice communication quality measurement systems increase network load due to the transmission of large recorded audio files, which can hinder efficient quality assessment.
Innovation Solution
A communication system that transmits encoded voice data instead of recorded audio files, using a test signal to evaluate voice communication quality by comparing received voice data with a sound source file, thereby reducing network load and allowing for continuous content downloads without interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If recorded audio files are transmitted via the communication network for voice communication quality measurement, then the quality evaluation can be performed, but the network load increases due to the large data amount
Solution Approach 1:
The patent extracts only the essential encoded voice data from the complete recorded audio file, transmitting only the necessary information for quality evaluation while leaving out redundant data. This reduces the transmitted data volume while maintaining evaluation accuracy.
Solution Approach 2:
The patent segments the audio processing into two stages: encoding at the terminal device and decoding/evaluation at the server. This segmentation allows the terminal to prepare data in advance and transmit only compressed encoded data, reducing network load while preserving measurement precision.
2Measurement precision
If voice communication quality measurement is performed using conventional methods, then quality evaluation is achieved, but user cooperation decreases due to communication interruptions for content downloads
Solution Approach 1:
The patent performs preliminary encoding of voice data at the terminal device before transmission. This preliminary action prepares the data in advance, allowing the server to receive already-processed encoded data and perform quality evaluation without interrupting the user's content download activities.
Solution Approach 2:
The patent introduces encoded voice data as an intermediary form between the original audio and the quality evaluation process. This intermediary representation allows quality measurement to proceed independently without blocking content download operations, maintaining user experience while enabling measurement.
Data Source
AI summary
Communication systems and communication methods are provided, by which load of a communication network when measuring a voice communication quality can be suppressed. A test signal for voice communication quality evaluation is transmitted to a communication terminal apparatus via a communication network, and a received voice data encoded by a predetermined scheme for the test signal received with the communication terminal apparatus is received from the communication terminal apparatus. A received voice signal is generated from the received voice data received from the communication terminal apparatus, and a evaluation value of voice communication quality is calculated by comparing the generated received voice signal with the test signal before transmitting.