Spectral prominences and phonetic distinctions in language

Abstract This paper reviews the acoustical and perceptual bases for several phonetic distinctions that appear to be signalled by manipulating the degree of prominence of a peak in the spectrum. These include the nonnasal-nasal and the front-back distinction for vowels, the compact-diffuse distinction for consonants, and the features rounding and breathy. The possible auditory bases for these distinctions are discussed, and the need for further work in this area is emphasized.