Phonetic classification is the process of grouping speech sounds according to how they are produced and how they are perceived or recognized. A system may classify features such as consonants, vowels, and patterns of articulation from audio or speech signals.
In cybersecurity and privacy, phonetic classification can be one step in analyzing voice recordings. Combined with other speech features, it may support speech recognition or attempts to infer information about a speaker. Such inferences can be sensitive and may be affected by accent, language, recording quality, or other conditions. Organizations handling recordings or derived features should limit access, protect stored data, and define retention and reuse rules.