Prohlížení Publikační činnost - 13138 dle autora "Holub, J."
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Effect of speech activity parameter on PESQ's predictions in presence of independent and dependent loses
Autor: Počta, P.; Holub, J.
(2013)This paper deals with the investigation of PESQ's (Perceptual Evaluation of Speech Quality; also known as ITU-T Recommendation P.862) behavior under independent and dependent loss conditions from a speech activity parameter ... -
Evaluation of Objective Speech Transmission Quality Measurements in Packet-based Networks
Autor: Slavata, O.; Holub, J.
(2013)This paper presents an analysis of the relation between IP channel characteristics and final voice transmission quality. The NISTNet emulator is used for adjusting the IP channel network. The transmission quality criterion is ... -
Impact of Different Active-Speech-Ratios on PESQ’s Predictions in Case of Independent and Dependent Losses (in Presence of Receiver-Side Comfort-Noise)
Autor: Počta, P.; Holub, J.; Vlčková, H.; Polková, Z.
(2010)This paper deals with the investigation of PESQ’s behavior under independent and dependent loss conditions from an Active-Speech-Ratio perspective in presence of receiver-side comfort-noise. This reference signal ... -
Impact of Different Active-Speech-Ratios on PESQ’s Predictions in Simulated VoIP Environment
Autor: Počta, P.; Holub, J.; Mrvová, M.
(2009)In this work, we experimentally study how behaviour of the PESQ predictions varies with reference signal characteristic. In particular we investigate the impact of different Active-Speech-Ratios on speech quality ... -
Predicting the Quality of Synthesized and Natural Speech Impaired by Packet Loss and Coding Using PESQ and P.563 Models
Autor: Počta, P.; Holub, J.
(2011)This paper investigates the impact of independent and dependent losses and coding on speech quality predictions provided by PESQ (also known as ITU-T P.862) and P.563 models, when both naturally-produced and synthesized speech ...