The Effect of Noise on Synthetic Sentence Identification
Charles Speaks, Jane L. Karmen · Journal of Speech and Hearing Research · 1967
The effect of masking noise on identification of synthetic sentences was studied on seven listeners with normal hearing. Performance-intensity (P-I) functions were defined for speech presentation levels ranging from 20 to 70 dB SPL. Noise exerted no appreciable influence on the steepness of the functions. The shift in threshold of identification varied in direct proportion to the overall noise level for noise intensities exceeding 40 dB SPL. Results are compared with the data of Hawkins and Stevens (1950) for thresholds of intelligibility and detectability and contrasted with previously reported results using a competing speech signal.