A phoneticist is someone who studies the sounds of language. There are several synonyms that can be used for the word phoneticist such as phonologist, speech scientist, linguistic phonetician, or auditory researcher. Phonologist focuses on the systematic patterns and rules of language sound systems, while speech scientist studies the production and perception of speech sounds. A linguistic phonetician examines the ways in which speech sounds vary across languages, while an auditory researcher explores the ways in which the brain processes sound. All of these professions fall under the umbrella of phonetics and involve the study of speech sounds and their usage.