Title :
A reference distortion system using modulated noise
Author :
Law, H.B. ; Seymour, R.A.
fDate :
11/1/1962 12:00:00 AM
Abstract :
A reference distortion device has been developed, initially for use in the subjective assessment of pulse-code-modulated telephony links. Noise is amplitude-modulated by the speech signal, and then added to the signal in variable proportion, to produce controllable distortion comparable with the effect of quantizing noise.
Keywords :
carrier telegraphy; distortion measurement; reception; telephone equipment; telephony;
Journal_Title :
Proceedings of the IEE - Part B: Electronic and Communication Engineering
DOI :
10.1049/pi-b-2.1962.0243
