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Calibration of Earphone‐Transmitted Sounds
Author(s) -
Putnam Lois E.,
Graham Frances K.,
Sigafus David L.
Publication year - 1975
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1975.tb03071.x
Subject(s) - calibration , intensity (physics) , psychology , sound intensity , variable (mathematics) , audiology , acoustics , statistics , sound (geography) , mathematics , optics , medicine , physics , mathematical analysis
The intensity of acoustic stimulation is frequently a variable of interest in psychophysiological studies but calibration procedures, particularly when earphones are employed, are not always adequate. The present study demonstrates that intensity is underestimated, more seriously at low frequencies, when calibration does not employ an appropriate coupler. Several standardized calibration methods are discussed in terms of their suitability For routine laboratory use.