Subjective speech quality measurement with and without parallel task: Laboratory test results comparison

Hakob Avetisyan and Jan Holub

PLOS ONE, 2018, vol. 13, issue 7, 1-8

Abstract: 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 distorted by various background noises and low bit-rate coding techniques. This study aimed to compare results of subjective speech quality tests with and without a parallel task deploying the ITU-T P.835 methodology. Afterward, tests results performed with and without a parallel task were compared using Pearson correlation, CI95, and numbers of opposite pair-wise comparisons. The tests show differences in results in the case of a parallel task.

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0199787

DOI: 10.1371/journal.pone.0199787

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