This course introduces students to fundamental principles of acoustics that are relevant to the study of human speech sounds. Students gain a basic understanding of properties of speech sound waves and learn to investigate these properties instrumentally using acoustic analysis software. Students gain extensive practice interpreting acoustic displays such as waveform graphs, fundamental frequency graphs, and spectrograms. A major focus of the course is the effective use of these displays as an aid to correctly transcribing speech sounds and understanding their phonetic properties in the context of descriptive phonetic and/or phonological fieldwork. Significant attention is also given to the complex interrelationships among acoustic, articulatory, and perceptual correlates of speech sounds.