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Sound -- Measurement, Integral transforms, Fourier transform spectroscopy


Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 1 introduces Heyser's logic for attempting to find a way to measure the subjective perception of sound.


In 2013-2014, Douglas R. Jones, professor of Audio, Arts, and Acoustics at Columbia College Chicago, edited and annotated Heyser's original articles from this series. Jones edited Chapter 1 to include explanatory notes and Heyser's mathematical formulas.

This item is part of the Richard C. Heyser collection at the College Archives & Special Collections department of