Effects of Bandpass-Filtered Noise upon the Intelligibility of Filtered Speech
Sadanand Singh, Sonia Phipps Brokaw, James E. Fricke · The Journal of the Acoustical Society of America · 1966
Intelligibility scores were obtained from 240 listeners for monosyllabic words. In Expt. 1, noise was introduced at the lowest end of the spectrum and, in Expt. 2, at the highest. Throughout the listening task, speech was presented through one of four “equally contributing intelligibility bands” (quarter-bands) of the speech spectrum: 300–760, 760–1450, 1450–2550, and 2550–7000 cps. Intelligibility in the channels (quarter-bands) at the opposite ends from the noise was superior in the experimental condition to that in the control, the control being characterized by no introduction of noise. Thus, effects similar to previously reported studies of release from masking were evident.