Probe-tube microphone measures of ear-canal sound pressure levels in infants and children

Judith A. Feigin; Judy G. Kopun; P. G. Stelmachowicz; Michael P. Gorga

doi:10.1097/00003446-198908000-00008

Probe-tube microphone measures of ear-canal sound pressure levels in infants and children

Judith A. Feigin, Judy G. Kopun, P. G. Stelmachowicz, Michael P. Gorga

Clinical Sensory Physiology Laboratory

Research output: Contribution to journal › Article › peer-review

87 Scopus citations

Abstract

Probe-tube microphone measures of ear-canal sound-pressure levels were obtained for 31 children under 5 years of age. These data were compared to similar measures from a group of 21 adults. The intrasubject variability was smallest for the frequency range from 750 to 3000 Hz and at no frequency did the mean standard deviation exceed 3 dB. Real ear to coupler differences for the children showed the same pattern as a function of frequency as for adults but were significantly larger. A systematic decrease in real ear to coupler differences was observed with increasing age between 1000 and 3000 Hz. An estimate of ear-canal volume did not appear to be a clinically useful predictor of real ear to coupler differences.

Original language	English (US)
Pages (from-to)	254-258
Number of pages	5
Journal	Ear and hearing
Volume	10
Issue number	4
DOIs	https://doi.org/10.1097/00003446-198908000-00008
State	Published - Aug 1989

ASJC Scopus subject areas

Otorhinolaryngology
Speech and Hearing

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abstract = "Probe-tube microphone measures of ear-canal sound-pressure levels were obtained for 31 children under 5 years of age. These data were compared to similar measures from a group of 21 adults. The intrasubject variability was smallest for the frequency range from 750 to 3000 Hz and at no frequency did the mean standard deviation exceed 3 dB. Real ear to coupler differences for the children showed the same pattern as a function of frequency as for adults but were significantly larger. A systematic decrease in real ear to coupler differences was observed with increasing age between 1000 and 3000 Hz. An estimate of ear-canal volume did not appear to be a clinically useful predictor of real ear to coupler differences.",

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AB - Probe-tube microphone measures of ear-canal sound-pressure levels were obtained for 31 children under 5 years of age. These data were compared to similar measures from a group of 21 adults. The intrasubject variability was smallest for the frequency range from 750 to 3000 Hz and at no frequency did the mean standard deviation exceed 3 dB. Real ear to coupler differences for the children showed the same pattern as a function of frequency as for adults but were significantly larger. A systematic decrease in real ear to coupler differences was observed with increasing age between 1000 and 3000 Hz. An estimate of ear-canal volume did not appear to be a clinically useful predictor of real ear to coupler differences.

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Probe-tube microphone measures of ear-canal sound pressure levels in infants and children

Abstract

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