Related Experiment Video
Updated: Apr 28, 2026

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments
Published on: March 1, 2022
The effect of experience on perceptual spaces when judging synthesized voice quality: a multidimensional scaling
Jessica Sofranko Kisenwether1, Robert A Prosek2
1Communication Sciences and Disorders, The College of St. Rose, Albany, New York.
Objectives/Hypothesis:
The purpose of this study was to determine the effect of experience on the perceptual space of listeners when judging voice quality.
Study Design:
This was a within-subjects group design.
Method:
Speech-language pathologists, singing voice teachers, speech-language pathology graduate students with and without experience with a voice client, graduate students who have completed a voice pedagogy course, and inexperienced served as listeners. Each participant rated the similarity of pairs of synthesized stimuli with systematically altered measurements of jitter, shimmer, and noise-to-harmonics ratio on a visual analog scale ranging from no similarity to extremely similar.
Results:
Results showed that participants with different levels and types of experience used different perceptual spaces (of additive noise and perturbation measures) when judging the similarity of stimulus pairs.
Conclusion:
The conclusion was that perceptual spaces differ among individuals with different levels and types of experience when judging the similarity of pairs of stimuli with systematically altered acoustical measurements.
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