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The main goal of this experiment is to evaluate performance of ITU-T P.863 POLQA in case of low-bitrate coders, namely MELPe, and Chinese language. Performance of POLQA is compared to its predecessor ITU-T P.862 PESQ.
The paper presents new results of speech transmission quality measurements obtained by a recently developed algorithm POLQA — ITU-T P.863 [1]. Even though the algorithm is declared by its authors as not intended for coding technologies under 4kbit/s, our research shows acceptable accuracy for databases containing significant portion of low bit-rate coded samples, namely by MELPe 2.4 kbit/s. The POLQA...
This paper describes the design and verification of algorithm for voice transmission quality measurements in the environment of non-native listeners; it means the communication language differs from the mother tongue of the expected communication service user. The algorithm is based on existing ITU-T P.862 (PESQ) enhanced by newly developed non-nativity emulation block. The calculations in this block...
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