Perceptual speech quality assessment in acoustic and binaural applications

Perceptual models such as perceptual evaluation of speech quality (PESQ, ITU-T P.862) are now in common use for estimation of listening quality mean opinion score (MOS) of telephone networks and equipment. PESQ was originally designed for evaluation of narrowband telephony, with electrical and/or digital connections to the systems under test. The paper discusses extending PESQ to measurements of terminals, such as mobile or hands-free telephones, using acoustic interfaces, under the working title of ITU-T P.AAM (acoustic assessment model). The changes to the model, and results comparing the extended model with subjective test data, are presented.