discomfort threshold estimation system, method and program, hearing aid adjustment system and discomfort threshold estimation processing circuit

摘要

Without allowing the user to hear about the strong sound you feel uncomfortable, and to estimate the sound pressure level at which the user feels uncomfortable (UCL). Discomfort threshold estimation system is to present the first sound having a sound pressure in the predetermined sound pressure range to the user, from the time at which presentation of the first sound after the first predetermined time, has the same sound pressure as the first sound an output unit for presenting a second sound to a user, the biological signal measurement section for measuring an electroencephalogram signal of a user, the brain wave signals measured in the presentation time of the second sound until after the second predetermined time, the event of the brain wave signals and extracting unit a feature quantity of the related potential, predetermined, by referring to the relationship between the feature quantity and the discomfort threshold of event-related potentials, and estimates the discomfort threshold corresponding to the feature quantity of the extracted event-related potentials It has an estimation unit.