quantization distortion

[‚kwän·tə′zā·shən di‚stȯr·shən]

(communications)

Inherent distortion introduced in the process of quantization of a waveform. Also known as quantization noise; quantumization distortion; quantumization noise.

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Pattern matching unit of our ASI system computed quantization distortion of X with codebook C of each registered speaker according to Equation (1) as reported by (Quatieri 2002).

COMBINING FEATURES AT VECTOR LEVELFOR HIGHER SPEED AND ACCURACY OF SPEAKER IDENTIFICATION

Wireline copper telephony is subject to long, aging wiring to residences, quantization distortion introduced by narrowband PCM codecs, and least-cost routing decisions which can result in quality issues," explained Michel Nadeau, President and CEO of Minacom, "It is no surprise that VoIP, delivered digitally from end-to-end can outperform the PSTN; with the introduction of wideband codecs and the ever-faster Internet backbone, we should expect that VoIP calls will soon be the next best thing to 'being there'.

Internet Phone Quality Improves Significantly and Steadily over the Last 12 Months

The evaluation methodology was the internationally accepted computation of Quantization Distortion Unit (QDU).

ACT Networks Toll Quality Voice Confirmed by Independent QDU Test; ACT Networks' Voice Algorithms Tested by the National Acoustic Laboratories in Australia