Phonetic factors contributing to the inception and evolution of sound change

Abstract

This paper uses experimental evidence for showing that, depending on the case, sound changes may be triggered primarily by either articulatory variation (as for changes occurring through segmental weakening or strengthening) or by acoustic equivalence (as for vowel nasalization or for segmental substitutions involving syllable-final stops of different places of articulation). It also argues for a multiple evolutionary pathway in the case of specific sound changes such as dark /l/ elision or the palatalization of Latin /kt, ks/ in Romance.The role of word prominence in vowel assimilations and dissimilations and how sound changes originate in the individual are also looked into.