Uncomfortable sound pressure determination system, method and program thereof, hearing aid adjustment system, and uncomfortable sound pressure determination apparatus
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United States of America Patent
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Dec 15, 2015
Grant Date -
Jul 18, 2013
app pub date -
Mar 7, 2013
filing date -
Jun 30, 2011
priority date (Note) -
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Abstract
An exemplary uncomfortable sound pressure determination system including: a sound data generator configured to generate sound data concerning sounds consecutively ascending or descending in sound pressure from first to nth sounds, the sounds being pure tones of a same frequency; an output section configured to present the sounds to a user; a characteristic amount extractor configured to extract, based on an event-related potential of the electroencephalogram signal measured after lapse of a predetermined time from a point in time of presenting each of the sounds, a characteristic amount concerning temporal change in frequency of the event-related potential; and an uncomfortable sound pressure determination section configured to determine, by referring to a previously-provided relationship by which temporal changes in frequency of event-related potentials and uncomfortable sound pressures are associated, a sound pressure corresponding to the extracted characteristic amount to be an uncomfortable sound pressure at the frequency.
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