Application Notes

用于 POLQA® 以及 PESQ® 语音质量测试的自动化测试工具

该应用指南提供了一种通过在音频分析仪 R&S®UPV 或 R&S®UPV66 上进行 PESQ、POLQA 以及延时测量实现电平调整、测试自动化以及报告的应用程序。

Contents

1 POLQA® and PESQ® Measurements

1.1 Objective Perceptual Speech Test Methods

1.2 Bandwidth and Listening Situation

1.3 Reference Signals

1.4 POLQA® and PESQ® on the R&S® Audio Analyzer UPV

1.5 POLQA® vs. PESQ®

1.6 Signal Levels

2 Using the Application Program

2.1 Installation

2.2 User Interface

2.3 Choosing a signal Path

2.3.1 Uplink

2.3.2 Downlink

2.3.3 Loopback on the Network Side

2.3.4 Loopback on the Mobile Side

2.3.5 Connection Cable between UPV and CMU Speech Connector

2.3.6 Connection Cable between UPV and UE Headset Connector

2.4 Calibration Functions

2.4.1 Decoder Calibration

2.4.2 Encoder Calibration

2.4.3 Mobile Input Calibration

2.4.3.1 M. I. Speech Cal.

2.4.4 Mobile Output Calibration

2.4.5 In / Out Calibration

2.4.6 Loading Calibration Values from File

2.5 Loading a Setup and Starting a Measurement in Manual Mode

2.5.1 Configuring the Test Signal

2.5.2 Choosing an equalizer filter

2.5.3 Options to be Carried out after Loading the Setup

2.5.4 Loading a Setup

2.6 Using the Monitor function

2.7 Running POLQA® or PESQ® Tests Automatically

2.7.1 User Interface of the Test Automation Tab

2.7.2 Compiling a List of Test Signals

2.7.3 Test and Averaging Options

2.7.4 Starting a Test Sequence

2.8 POLQA® and PESQ® Test Results

2.8.1 Viewing Results in the Data Grid

2.8.2 Statistical Evaluation and Limit Check of Result Data

2.8.3 Entering Auxiliary Data

2.8.4 Previewing a Report

2.8.5 Printing a Report

2.8.6 Export of Result Data to an ASCII file

2.9 Delay Measurements

2.10 Delay Results

3 Literature

4 Ordering Information

Name Type Version/Firmware Date Download