A new IEC standard on audio quality measurement of personal computers (PCs) was published in December 2005, entitled IEC 61606-4 "Audio and audiovisual equipment -Digital audio parts -Basic measurement methods of audio characteristics -Part 4: Personal computer." That standard prescribes methods for measuring PC audio quality, taking into account the requirements of measuring conditions of PCs. Furthermore, a new measure of audio signal quality, short-term distortion, was introduced to describe PC-specific noise problems. This paper presents an outline of that standard.
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