Phonation into a tube as a voice training method: acoustic and physiologic observations.
Phonation into narrow glass tubes has been used as a voice training method. The present study examined phonatory and voice quality during and after tube phonation. The methods used were (a) electromyography with surface electrodes, (b) a dual-channel electroglottography from which the vertical larynx position was derived and (c) inverse filtering of the acoustic signal of vowel samples produced before and immediately after the exercise. Phonation into a tube seemed to cause a tendency to heighten the vertical laryngeal position. For female subjects (n = 3) the tube exercise tended to lead to increased vocal effort in vowel production after the exercise and, in contrast, to a tendency for a more relaxed voice production for the males (n = 2).
Laukkanen
A M
AM
Institute of Speech Communication and Voice Research, University of Tampere, Finland.
Lindholm
P
P
Vilkman
E
E
D000328:Adult; D004576:Electromyography; D005260:Female; D006801:Humans; D007830:Larynx / Q000502:physiology*; D008297:Male; D010699:Phonation / Q000502:physiology*; D013018:Sound Spectrography; D013061:Speech Acoustics; D013068:Speech Production Measurement; D014834:Voice Training