Perceptual Audio Coders "What to listen for"
Low-bit rate audio coding has become a widely used technology during past years. By of the use of sophisticated signal processing techniques, exploiting psychoacoustic phenomena, nontransparent coding results in artifacts sounding very different from traditional distortions which are frequently not obvious at all to the untrained listener. The AES Technical Committee on Audio Coding therefore has started an activity to produce a CD-ROM which presents some of the most common coding artifacts in more detail. The CD-ROM not only explains and comments each of the coding artifacts separately but for each artifact, audio examples are presented, using different degrees of distortion, varying from "subtle" up to "obvious".
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