Title :
Measurement of the Effects of Temporal clipping on Speech Quality
Author :
Ding, Lijing ; El-Hennawey, Mohamed Samy ; Goubran, Rafik A.
Author_Institution :
Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont.
Abstract :
This paper investigates the effects of temporal clipping, which can result from voice activity detection (VAD), or echo canceller´s nonlinear processor (NLP), on speech quality. Mean opinion score (MOS) is used as an index of speech quality. A nonintrusive algorithm, based on the clipping locations, is proposed to predict the speech quality. The algorithm shows excellent performance, the correlation coefficient between the prediction and the measurement is about 0.975, and the root mean square error for the prediction is 0.18 MOS
Keywords :
digital signal processing chips; echo suppression; speech processing; clipping locations; echo canceller; mean opinion score; nonintrusive algorithm; nonlinear processor; speech quality; temporal clipping; voice activity detection; Degradation; Drives; Echo cancellers; Internet telephony; Multimedia systems; Prediction algorithms; Root mean square; Speech processing; Statistics; Testing; Mean Opinion Score; Voice Activity Detection; Voice over Internet Protocol; nonintrusive method; speech quality prediction; temporal clipping;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-8879-8
DOI :
10.1109/IMTC.2005.1604321
