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Speech discrimination capability determination device, speech discrimination capability determination system, hearing aid gain determination device, speech discrimination capability determination method and program thereof
Speech discrimination capability determination device, speech discrimination capability determination system, hearing aid gain determination device, speech discrimination capability determination method and program thereof
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机译：语音辨别能力确定设备，语音辨别能力确定系统，助听器增益确定设备，语音辨别能力确定方法及其程序
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摘要
It is made possible to determine a speech discrimination ability of a user width a high precision. From an electroencephalogram signal of a user, a speech discrimination ability determination system acquires: an event-related potential based on a point of outputting a first speech sound being output with a first occurrence frequency as a starting point; an event-related potential based on a point of outputting the first speech sound being output with a second occurrence frequency as a starting point; an event-related potential based on a point of outputting a second speech sound being output with the first occurrence frequency as a starting point; and an event-related potential based on a point of outputting the second speech sound being output with the second occurrence frequency as a starting point. With respect to each of the first and second speech sounds, an MMN determination section acquires difference information between the event-related potential acquired during its output with the first occurrence frequency and the event-related potential acquired during its output with the second occurrence frequency, and determines whether a negative component exists in the difference information in predetermined time ranges after the first and second speech sounds are output. When the determination result indicates that the negative component exists, a discrimination ability determination section determines that the user discriminates the first and second speech sounds.
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