ANSI T1A1 Contribution T1A1.5/94-103, January 17, 1994.

VTC Hypothetical Reference Circuit Signal to Noise Ratio Measurements

Arthur A. Webster; Coleen T. Jones

Abstract: Discusses the method of measurement used to obtain the signal to noise ratio (SNR) values for each of the twenty-five video systems in the T1A1 subjective video experiment. The 25 video systems ranged in bit rate from 64 kb/sec to 45 Mb/sec. The signal to noise ratio (SNR) was measured using a traditional analog test waveform, in particular, the 55 IRE flat field test signal that was on the standard video test scene tape.

Keywords: performance; measurements; noise; video; quality; objective; conferencing; SNR; specifications

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Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

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