title: Electropalatographic and spectrographic descriptions of allophonic variants of /1/.
abstract: Prevocalic and postvocalic /1/ were investigated in three adult subjects utilizing a combination of electropalatographic and acoustic techniques. Results indicated that prevocalic /1/ was characterized by both alveolar and lateral lingua-palatal contact, while postvocalic /1/ was primarily alveolar contact only. Acoustically, prevocalic /1/ had a lower first formant and higher second formant than postvocalic /1/. In addition, the second and third formants were often weak or absent for prevocalic but not postvocalic /1/. Vowel context had a greater effect on the electropalatographic and acoustic characteristics of prevocalic than postvocalic /1/. Models that relate physiological and acoustical aspects of speech were utilized to account for the observed results.
authors.affiliation: Department of Communication Disorders, Central Michigan University, Mount Pleasant 48859, USA.
authors.forename: M E
authors.initials: ME
authors.lastname: Lehman
authors.forename: B
authors.initials: B
authors.lastname: Swartz
mesh_terms: D000328:Adult; D004594:Electrophysiology; D005260:Female; D006801:Humans; D008297:Male; D009055:Mouth / Q000502:physiology*; D010159:Palate / Q000502:physiology; D010700:Phonetics; D013018:Sound Spectrography; D013060:Speech / Q000502:physiology*; D013061:Speech Acoustics; D013068:Speech Production Measurement; D014059:Tongue / Q000502:physiology