![]() It turned out that the smaller set could not be used for selecting audiograms as sloping audiograms were absent. Using this analysis method, sets of typical audiograms have been obtained of sizes 12 and 60. ![]() This set of standard audiogram has been derived by a vector quantization analysis method on a database of 28,244 audiograms. This article describes how the set of standard audiograms has been developed. To limit the variation of programming outcomes, 10 standard audiograms, which cover the entire range of audiograms met in clinical practice, have been defined. For this characterization, the hearing aid will be set to actual user settings as programmed by standard fitting software from the hearing aid manufacturer. For the characterization of hearing aids, a new test method has been defined in the new International Electrotechnical Commission (IEC) standard 60118–15.
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