A Hybrid Signal-and-Link-Parametric Approach to Single-Ended Quality Measurement of Packetized Speech
Tiago Henrique Falk, Hua Yuan, Wai-Yip Chan · 2007
A hybrid signal-and-link-parametric approach to single-ended quality measurement of packetized speech is proposed. Transmission link parameters are used to determine a base quality for the test signal. The base quality is adjusted by degradation factors calculated from perceptual features extracted from the test signal. The degradation factors are based on Kullback-Leibler distances between a parametric model trained online for the extracted features and reference models of normative speech behavior. The proposed method overcomes the limitations of pure link parametric and pure signal-based methods.