Mammalian laryngseal air sacs add variability to the vocal tract impedance: physical and computational modeling.

@article{Riede2008MammalianLA,
  title={Mammalian laryngseal air sacs add variability to the vocal tract impedance: physical and computational modeling.},
  author={Tobias Riede and Isao T. Tokuda and Jacob B Munger and Scott L. Thomson},
  journal={The Journal of the Acoustical Society of America},
  year={2008},
  volume={124 1},
  pages={634-47}
}
Cavities branching off the main vocal tract are ubiquitous in nonhumans. Mammalian air sacs exist in human relatives, including all four great apes, but only a substantially reduced version exists in humans. The present paper focuses on acoustical functions of the air sacs. The hypotheses are investigated on whether the air sacs affect amplitude of utterances and/or position of formants. A multilayer synthetic model of the vocal folds coupled with a vocal tract model was utilized. As an air sac… CONTINUE READING

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