Perceptual evaluation of audio quality under lossy networks

摘要

The Perceptual Evaluation of Audio Quality (PEAQ) is a standard ITU algorithm that is widely used in audio quality evaluation. This algorithm is reported to be accurate for high quality audio signal with low impairments that are caused by lossy compression associated with audio codecs. In this paper, we experimentally and quantitatively show that PEAQ fails drastically under very small imperceptible impairments that are caused by frames' losses associated with audio streaming applications over lossy networks or due to audio recording and processing errors, which make it not preferable evaluation tool for these applications.