Lee, Lidia W.
M.A. (Master of Arts)
Department of Communicative Disorders
Auditory perception; Hearing; Hearing levels
The purpose of this study was to identify a set of orthogonal descriptors of sound quality. One hundred normal-hearing college students listened to one spoken and nine musical stimuli. Each stimulus was rated on 15 Lykert scales of 0 to 51, each with six gradations. Ratings were made according to the subject?s impression of the stimulus in terms of the various sound-quality descriptors. Factor analysis of data from all ratings resulted in the extraction of three principal components, comprising 89.83% of the total variance. By analyzing the descriptors belonging to the three factors, Factor 1 was interpreted to be a rating of loudness, Factor 2 was interpreted to be a rating of clarity, and Factor 3 was interpreted to be a rating of comfort. Analysis of data by type of listening material was also performed, yielding three to five factors accounting for less variance.
Dolter, Clare M., "Descriptors of sound quality for normal-hearing subjects" (1999). Graduate Research Theses & Dissertations. 2075.
vi, 89 pages
Northern Illinois University
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Includes bibliographical references (pages -43).