SYSTEM AND METHOD FOR CONDUCTING AN ALTERNATIVE FORCED CHOICE HEARING TEST

摘要

There is provided a newly developed technique, wherein hearing thresholds can be estimated with a system operated by the test persons themselves. This technique is based on the 2 (or more) Alternative Forced Choice paradigm known from the psychoacoustic research theory. Test persons can operate the system very easily themselves. Furthermore the system uses the theories behind the methods of maximum-likelihood fitting of the most probable psychometric function and a modification of the well known up-down methods in the estimation of the hearing thresholds. The combination of the 2AFC paradigm and the maximum-likelihood and up-down method has proven effective and reliable even in suboptimal test settings.