Objectivity, Sound -- Measurement, Subjectivity
This paper with its combined slides was presented by Richard C. Heyser to explain his theories for measuring sound.
Heyser, Richard C. "It's a Great Day Tomorrow" (1976). Richard C. Heyser Collection, College Archives & Special Collections, Columbia College Chicago. http://digitalcommons.colum.edu/cadc_heyser_unpublished/27
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