Distortion product otoacoustic emissions upon ear canal pressurization
- Resource Type
- Authors
- Thomas Janssen; Volker Schirkonyer; Thomas Fedtke; Sven Vollbort; Makram Zebian; Johannes Hensel
- Source
- The Journal of the Acoustical Society of America. 133:EL331-EL337
- Subject
- Male
medicine.medical_specialty
Adolescent
Acoustics and Ultrasonics
Distortion product
Acoustics
Otoacoustic Emissions, Spontaneous
Otoacoustic emission
Ear, Middle
Audiology
Young Adult
Arts and Humanities (miscellaneous)
Cabin pressurization
Pressure
otorhinolaryngologic diseases
Humans
Medicine
Ear canal
medicine.diagnostic_test
business.industry
Pure tone
Signal Processing, Computer-Assisted
medicine.anatomical_structure
Middle ear
Audiometry, Pure-Tone
Female
sense organs
Audiometry
business
Ear Canal
Compliance
- Language
- ISSN
- 0001-4966
The purpose of this study was to quantify the change in distortion product otoacoustic emission (DPOAE) level upon ear canal pressurization. DPOAEs were measured on 12 normal-hearing human subjects for ear canal static pressures between -200 and +200 daPa in (50 ± 5) daPa steps. A clear dependence of DPOAE levels on the pressure was observed, with levels being highest at the maximum compliance of the middle ear, and decreasing on average by 2.3 dB per 50 daPa for lower and higher pressures. Ear canal pressurization can serve as a tool for improving the detectability of DPOAEs in the case of middle-ear dysfunction.