A crude approximation of voice production is to consider the breathing passages and mouth to be a

Question:

A crude approximation of voice production is to consider the breathing passages and mouth to be a resonating tube closed at one end. (See Figure 17.29.)

(a) What is the fundamental frequency if the tube is 0.240-m long, by taking air temperature to be 37.0°C?

(b) What would this frequency become if the person replaced the air with helium? Assume the same temperature dependence for helium as for air. Soft palate- Tongue Epiglottis- Pharynx Nasal cavity aaaaaaa a aaaaaa - Vocal cord Larynx - Trachea