Impact of Different Active-Speech-Ratios on PESQ’s Predictions in Simulated VoIP Environment
Author
Počta, P.
Holub, J.
Mrvová, M.
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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 prediction
in simulated VoIP environment from objective and subjective testing point of view. This reference signal characteristic
is defined very broadly by ITU-T Recommendation P.862.3. That is the reason to investigate an impact
of this characteristic on speech quality prediction more in-depth. We assess the variability of PESQ’s predictions
with respect to Active-Speech-Ratio and network conditions, as well as their accuracy, by comparing the
predictions with subjective assessments.
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