Subjective Speech Quality Measurement with and without Parallel Task: Laboratory Test Results Comparison
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článek v časopisejournal article
Peer-reviewed
publishedVersion
Author
Avetisyan H.
Holub J.
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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.
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