The article describes an algorithm allowing intrusive speech transmission quality measurements in networks with low bit-rate coding schemes (600 ' 2400 bits/second) as used in satellite and military communications. The proposed algorithm is based on PESQ (ITU-T P.862) perceptual model, enhanced by input noise resistance capability. The new algorithm reflects also noise cancellation capabilities of modern audio coders. The correlation between Absolute Category Rating (ACR) Mean Opinion Score (MOS) listening test results and output of the developed algorithm achieves 0.89 without the knowledge of original noise-free speech sample.

Authors: Holub, Jan; Smid, Radislav; Street, Michael D.
Affiliations: FEE CTU, Dept. of Measurement, Prague, Technicka, Czech Republic ; NATO C3A, Tha Hague, The Netherlands(See document for exact affiliation information.)
AES Convention: 115 (October 2003) Paper Number: 5954
Publication Date: October 1, 2003
Subject: Sound Quality and Listening Tests

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