title: [The normal value of DPOAE and effect of intensity differ of probe tone].
abstract: OBJECTIVE
  To investigate the normal value of DPOAE and effect of intensity differ of probe tone.
  
  
  METHODS
  30 subjects (60 ears) age from 17 to 40 were examined in this article, and the amplitude of DPOAE were measured when using L1 = L2 = 70 dB SPL and L1 = 70 dB SPL, L2 = 65 dB SPL.
  
  
  RESULTS
  DPOAE was recorded in 100%. The amplitude of DPOAE when using L1 = 70 dB SPL, L2 = 65 dB SPL is larger than the amplitude of DPOAE when using L1 = L2 = 70 dB SPL.
  
  
  CONCLUSIONS
  Those results give us useful information for clinic.
authors.affiliation: ENT Department of PLA General Hospital, Beijing 100853.
authors.forename: N
authors.initials: N
authors.lastname: Zhou
authors.forename: L
authors.initials: L
authors.lastname: Yu
authors.forename: X
authors.initials: X
authors.lastname: Li
mesh_terms: D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D001299:Audiometry; D015834:Cochlear Diseases / Q000175:diagnosis; D005260:Female; D006801:Humans; D008297:Male; D017084:Otoacoustic Emissions, Spontaneous; D012016:Reference Values