distinctive feature analysis

Distinctive-feature analysis is a concept in linguistics used to describe sound systems. It posits that each distinct sound in a language is composed of a set of contrasting articulatory and acoustic features. When two sounds are perceived as different, they must differ in at least one of these features.1

This approach was developed by linguists of the Prague school, including Roman Jakobson and Nikolay Trubetskoy. Later, Noam Chomsky and Morris Halle expanded on this, proposing a more extensive set of binary features to describe phonemes, which are the smallest meaningful sound units in a language. These features help classify sounds into natural groups, which is crucial for understanding phonological rules. For example, features can describe whether a sound is a vowel or consonant, or its place and manner of articulation.123