CMD 276- Midterm Exam Guide - Comprehensive Notes for the exam ( 25 pages long!)
11 Oct 2017
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Document Summary
Cmd 276 - lecture 7 - vocal tract resonance. Vocal tract is a quarter wave resonator. It"s an air filled tube open at one end (lips) and closed at the other (glottis) Vocal tract is a series of connected air filled tubes (oral, nasal, pharynx) Sound is acoustically treated before it leaves the body. Each container has its own resonant frequency (rf) Overall rf of all the hooked up tubes is different than each of the single tubes. Cannot just add all the rfs up. If rf in one container is similar to that in another, they can enhance that frequency. If not, then they don"t add together and nothing happens. Irregular vocal tract shape makes it a broadly tuned resonator. Molecules of air in the vocal tract are really responsive to vibration. Lowest resonance occurs at fundamental frequency (f0) As an asymmetric tube, the vocal tract resonates at several rfs.
