title: [Study on the nasal resonance].
abstract: OBJECTIVE
  In order to understand the resonant function of the nasal cavity (including nasal sinuses) which is one of the resonant organs of the human body.
  
  
  METHODS
  The maximum frequency, mean frequency and the number of harmonics of five vowels [a], [e], [i], [o], [u] were compared before and after packing of the anterior nasal cavity.
  
  
  RESULTS
  The result was analyzed statistically and showed no significant difference.
  
  
  CONCLUSIONS
  It proved that the front part of the nasal cavity plays no important role in the function of the nasal resonance.
authors.affiliation: Department of Otolaryngology, People's Hospital, Beijing Medical University, Beijin 100044.
authors.forename: G
authors.initials: G
authors.lastname: Ding
authors.forename: D
authors.initials: D
authors.lastname: Yu
authors.forename: H
authors.initials: H
authors.lastname: Yu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009296:Nasal Cavity / Q000502:physiology*; D010256:Paranasal Sinuses / Q000502:physiology*; D013061:Speech Acoustics