11. In addition, the vocal tract may often be constricted in the region of the epiglottis. 12. The modes can be altered in sound by either widening or narrowing the vocal tract . 13. Here, the vocal tract is in its neutral state and creates a near perfect tube. 14. The bassos'vocal tracts measured an average 32.3 square centimeters. 15. Their vocal tract will be shaped to resonate at frequencies associated with the tone being produced. 16. A "'continuant "'is a speech sound produced with an incomplete closure of the oral vocal tract . 17. An otonality corresponds to an arithmetic series of Khoomei singers produce otonalities with their vocal tracts . 18. Men, generally speaking, have a larger vocal tract , which essentially gives the resultant voice a lower-sounding timbre. 19. They put their vocal tracts in a shape that is right musically rather than right for speech, 20. The dental consonants are " distributed ", with closure along a considerable distance of the vocal tract .