41. This is caused when a narrow flap and inadequate lateral pharyngeal wall movement prohibit lateral port closure during phonation . 42. And pitch is a factor in phonation as certain kinds of phonation can only be produced at certain pitches. 43. And pitch is a factor in phonation as certain kinds of phonation can only be produced at certain pitches. 44. She started to attend phonation classes, and next to the violin, her voice became her second instrument. 45. Estill suggests that this laryngeal tube creates a separate resonator that is responsible for the extra brightness in phonation . 46. Although each language may be somewhat different, it is convenient to classify these degrees of phonation into discrete categories. 47. Grunting while lifting heavy objects is the result of some air escaping through the adducted vocal folds ready for phonation . 48. Only the tone of the speech is saved in the whistle, while aspects as articulation and phonation are eliminated. 49. There is no symbol in the IPA for whispered phonation , since it is not used phonemically in any language. 50. Furthermore, although phonation is in a sense seperate from tone they are overlapping subjects that sometimes effect each other.
