通话软件传输音质测量方案

● Supports POLQA test option (based on ITU-T P.863), using POLQA3.0 algorithm for subjective evaluation of speech quality in broadband voice devices or acoustically coupled devices. It supports ultra-high-definition voice, 4G, 5G, VoLTE, and VoNR technologies；
● POLQA3.0 is optimized for complex noise environments and advanced speech enhancement technologies, providing full-bandwidth MOS scoring, improved time alignment, and noise processing to meet 5G and future voice technology requirements；
● High-performance hardware testing equipment with typical residual THD+N (20kHz BW) < -120dB (1kHz, 2.0V), ideal for audio product R&D；
● The device is controlled by software, supporting automatic test report generation and export in multiple formats for easy result storage；
● The audio analyzer offers rich testing functions, including subjective sound quality evaluation, SNR, frequency response, and other audio index tests, suitable for testing headphones, speakers, microphones, and other audio-related products；
● The network impairment simulator's single simulation engine can model up to 15 independent virtual links, meeting multi-task parallel testing needs, with flexible delay/jitter settings, rich packet loss/error modes, and packet classifiers；
● Supports recording changes in network bandwidth, delay, and packet loss rate over time, which can be imported for playback to accurately replicate real-world network conditions；
● Provides fully open APIs for integration with various test automation tools, enhancing testing efficiency and productivity；
● Equipped with comprehensive testing equipment and accessories for rapid test environment setup.