Introduction to Speech Production Lecture 1

Phonetics and Phonology Phonetics: The physical manifestation of language in sound waves. –How sounds are articulated –How sounds are perceived Phonology: The mental representation of sounds. Example:

Phonetics and Phonology PhoneticsPhonology Language independent Study of all sounds Language dependent Study of only those sounds that constitute language and meaning Phonology is a subset of phonetics

Human Anatomy

Sounds Categorization Manner of articulation closure made by the articulators and the degree of the obstruction of the air stream by those articulators. Place of articulation Position of the articulators e-g: tongue, lips etc. Status of glottis Voicing : vocal cords are vibrating Voiceless: vocal cords do not vibrate

Sound Categorization A good link to understand manner and place of articulation (only sounds in American English).A good link to understand manner and place of articulation (only sounds in American English). nglish/frameset.html

Phonology Language dependent subject Few phonological rules Examples: Other topics might involve –Script to phonemic conversion –Stress analysis –Syllabification –Intonation

Applications Formants modeling Consonant identification Vowel identification Klatt Synthesizer Searching in multimedia databases Encoding and Speech transmission Speech recognition Speaker identification