Audio Signal Quality Evaluation via Remote Measurement Server
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Solution Overview
Problem
Existing quality evaluation methods for audio signals require either intrusive measurements, which need the original signal, or are limited in accessibility, making it difficult for the general public to assess audio signal quality without specialized equipment or network modifications.
Innovation Solution
A device and method that allows users to access a quality evaluation system via an internet platform, using non-intrusive measurements, where users can dial-in to a measurement server with a contact address, generate an audio signal, and receive immediate feedback on the quality of their audio signal channel without needing to provide the original signal, facilitating self-evaluation and comparison across different providers and terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If intrusive measurement methods are used to evaluate audio signal quality, then measurement precision is improved, but device complexity and ease of operation deteriorate due to requiring original signal access and specialized equipment
Solution Approach 1:
The patent extracts the quality evaluation function from the traditional intrusive measurement setup and implements it as a non-intrusive remote measurement system. The measurement server can evaluate audio signals without requiring access to the original signal source or specialized equipment at the user's location, thereby improving ease of operation while maintaining measurement precision through remote processing
Solution Approach 2:
The patent introduces a measurement server as an intermediary between the user and the quality evaluation process. This server receives audio signals from users via telephone or other communication channels, performs the quality evaluation remotely, and returns results without requiring the user to provide the original signal or have specialized equipment, thus resolving the contradiction between precision and ease of operation
2Ease of operation
If non-intrusive measurement methods are used, then ease of operation is improved, but measurement precision may deteriorate due to lack of reference signal
Solution Approach 1:
The patent implements a feedback mechanism where the measurement server provides quality evaluation results to the user after receiving the audio signal. This feedback loop allows the system to compensate for the non-intrusive nature by providing comprehensive quality information including objective measurements and subjective assessment guidance, thereby maintaining measurement precision while preserving ease of operation
Solution Approach 2:
The measurement server is designed to perform multiple functions: receiving audio signals from various users and devices, conducting quality evaluations using standardized methods, providing objective measurements, and offering subjective assessment guidance. This multi-functionality enables the system to maintain high measurement precision across different applications while remaining universally accessible to users without specialized equipment
3Ease of operation
If quality evaluation systems are made accessible to general public, then ease of operation is improved, but device complexity increases due to need for internet platform integration
Solution Approach 1:
The patent replaces complex mechanical or physical measurement arrangements with a software-based internet platform system. Users can access the quality evaluation service through standard internet communication without needing physical access to specialized equipment or complex measurement setups, thereby improving public accessibility while managing system complexity through software implementation
Data Source
AI summary
A quality evaluation device for quality evaluation of an audio signal transmitted via an audio signal channel includes a unit for providing contacting information to a remote user, wherein the contacting information includes a contact address. A measurement server includes an interface designed to be a final point of the audio signal channel after an access with the contact address by the remote user, wherein a starting point of the audio signal channel is the remote user, and wherein the measurement server is further designed to subject the signal provided by the remote user via the audio signal channel to the quality measurement. The quality evaluation device further includes a unit for sending a quality evaluation result generated by the measurement server from the measurement server to the remote user. This allows any user able to access the measurement server, for example per internet, to evaluate and compare qualities with any terminals, any transmission channel settings, various telephone providers.