Browsing Publikační činnost ČVUT by Author "Avetisyan H."
Now showing items 1-6 of 6
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Analysis of the Dependency of Call Duration on the Quality of VoIP Calls
Author: Holub J.; Wallbaum M.; Smith N.; Avetisyan H.
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC., 2018)This paper analyses call detail records of 16 million live calls over Internet-Protocol-based telecommunications networks. The objective is to examine the dependency between average call duration and call quality as perceived ... -
Low Bit-rate Coded Speech Intelligibility Tested with Parallel Task
Author: Avetisyan H.; Drábek T.; Holub J.
(S. Hierzel, 2018)A speech intelligibility test in realistic environments has been designed and performed deploying 51 subjects. A single set of speech samples distorted by various background noises and low bit-rate coding techniques has ... -
Low Bit-rate Coded Speech Intelligibility Testing in Czech Language using Parallel Task
Author: Avetisyan H.; Holub J.; Slavata O.
(Audio Engineering Society, 2020)This article deals with subjective tests of speech intelligibility. A set of samples in Czechlanguage, recorded by four different narrators, was distorted with different noise levels andencoded by a low bit-rate encoder. ... -
Subjective speech quality measurement repeatability: comparison of laboratory test results
Author: Holub J.; Avetisyan H.; Isabelle S.
(Springer, 2017)This article reports on a multi-lab subjective listening experiment aiming at inter-lab and intra-lab test results repeatability verification. An identical set of speech samples corresponding to contemporary networks has ... -
Subjective Speech Quality Measurement with and without Parallel Task: Laboratory Test Results Comparison
Author: Avetisyan H.; Holub J.
(Public Library of Science, 2018)This paper focuses on a novel methodology of subjective speech quality measurement and repeatability of its results between laboratory conditions and simulated environmental conditions. A single set of speech samples was ... -
Subjective Video QoE with a Hybrid Cognitive-motor Task
Author: Holub J.; Avetisyan H.; Lima P.-V.
(IEEE, 2021)This paper reports on the subjective video quality analysis with and without a parallel task. It aims to understand how the quality perceived by the human observer brain is affected when the subject is not entirely focused ...