Source-Filter Theory Of Vowel Production. Focal tract resonates like tube closed at one end. Web for vowels and resonant consonants phonation in larynx is filtered by the complete vocal tract (glottis to lips) for fricatives and stop bursts noise/transient is filtered by the vocal.
Web the source/filter model of speech production says that the complex wave that actually comes from a speaker's mouth depends on two things: Focal tract resonates like tube closed at one end. Web sources of sound may include: