Title :
An analysis of the impact of packet loss, codecs and type of voice on internal parameters of P.563 model
Author :
PolackyÌ, Jozef ; PocÌŒta, Peter
Author_Institution :
Fac. of Electr. Eng., Univ. of Zilina, Zilina, Slovakia
Abstract :
This paper deals with an analysis of internal parameters of the P.563 non-intrusive quality prediction model forming an overall quality prediction of this model in the context of an impact of natural and synthesized speech degraded by packet loss (independent and dependent losses) and speech coding (ITU-T G.711 codec, ITU-T G.729AB codec and iLBC codec). A main aim of this paper is to identify dominant internal parameters of the P.563 model for all the investigated codecs and clp parameters by conducting two-way analysis of variance (ANOVA) tests on all internal parameters of the P.563 model. All the identified dominant internal parameters will be further used in an investigation of non-monotonic behavior of the P.563 model predictions in this context, reported for ITU-T G.729AB codec in [6].
Keywords :
speech codecs; speech coding; statistical analysis; ANOVA test; ITU-T G.729AB codec; P.563 model internal parameters; P.563 model nonmonotonic behavior; P.563 nonintrusive quality prediction model; clp parameters; natural speech; packet loss; speech coding; synthesized speech; two-way analysis of variance; voice type; Analytical models; Codecs; Packet loss; Predictive models; Speech; Speech coding; P.563model; natural speech; packet loss; speech coding; speech quality; synthesized speech; voice;
Conference_Titel :
Digital Technologies (DT), 2014 10th International Conference on
Conference_Location :
Zilina
DOI :
10.1109/DT.2014.6868728
