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Auditory Detection of the Presence and Absence of Signals in Noise
The Journal of the Acoustical Society of America1956Vol. 28(4), pp. 614–616
Abstract
An experiment is described in which detection of the absence of signal remained high and relatively constant while detection of intermixed signals varied over the threshold region as a function of signal voltage. Statistical signal detection thresholds of observers with set to detect absence of signal were approximately 2 db lower than those of observers with set to detect signal.
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