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

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...

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Bibliographic Details
Published in:PloS one 2018-07, Vol.13 (7), p.e0199787-e0199787
Main Authors: Avetisyan, Hakob, Holub, Jan
Format: Article
Language:English
Subjects:
Adolescent
Adult
Age
Aged
Algorithms
Background noise
Biology and Life Sciences
Data analysis
Electrical engineering
Engineering and Technology
Environmental conditions
Evaluation
Experiments
Female
Humans
Internet telephony
Laboratory tests
Listening
Male
Middle Aged
Noise
Observations
Physical Sciences
Quality
Quality assessment
Research and Analysis Methods
Signal processing
Social Sciences
Speech
Speech - physiology
Speech Intelligibility
Speech Perception - physiology
Standardization
Task Performance and Analysis
Telecommunications systems
Test methods
Test reliability
Testing laboratories
Verbal ability
Young Adult
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Summary: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.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0199787