Consistency of Identification of Consonants Heard in Noise
Irwin W. Pollack · The Journal of the Acoustical Society of America · 1964
Five measures of response consistency were obtained for three different sets of four consonants over a wide range of speech to noise ratios. The measures are related to uncertainty and variance statistics. Consistency measures were compared for two conditions of presentation: an identical set of utterances in which a given syllable and its noise background were both recorded and played back over the course of 12 replications of the experiment; and an equivalent set of utterances in which 12 separate readings of each utterance were recorded against independent noise backgrounds. Each of the measures demonstrated higher response consistency for identical than for equivalent sets of utterances.