Voice Quality Evaluation Platform for the Arabic Language

Abstract

The voice quality evaluation of communication systems is necessary for technical and commercial reasons for the expansion of digital networks, mobile or VoIP and speech synthesis systems. Voice quality can be evaluated using two types of methods: subjective MOS (Mean Opinion Score) and objective PESQ (Perceptual Evaluation Speech Quality). In this work, we propose a study of voice quality evaluation methods; in which a subjective and objective evaluation platform of voice quality is provided. We applied different tests used in the assessment of the speech signal quality to speech synthesis signal for the Arabic Language (GArabic: Generic Arabic). The listeners recognized the majority of changes of consonants and vowels in words and sentences with respective percentages of 98.26%, 92.97%. The comparison between MOS and PESQ tests gave a good correlation coefficient of 0.922.