Hearing evaluation method and device based on speech intelligibility index

Abstract

The invention discloses a hearing evaluation method and device based on a speech intelligibility index. The method comprises the following steps of 1) establishing a function relationship between a hearing threshold and speech recognition performance by using the speech intelligibility index; 2) constructing an easily confused bisyllable word pair corpus as a test corpus for speech audiometry according to the selected easily confused vowel pair and consonant pair, and measuring a band importance function (BIF) of the test corpus by using a quick band importance function measurement method; 3)performing speech audiometry on a testee by using the easily confused bisyllable words constructed in the step 2); and then selecting a sound intensity condition enabling the likelihood value of the easily confused bisyllable words to the test result to be maximum as a final hearing threshold of the testee. According to the method, a relatively stable and reliable result can be obtained in a non-professional environment, and the correlation with a pure tone audiometry result is relatively large, so that the method is a feasible scheme for solving the problem of hearing evaluation of a mobile terminal.

Description

technical field [0001] The invention belongs to the technical field of hearing aids and relates to a hearing assessment method, in particular to a hearing assessment method and equipment based on a speech intelligibility index. Background technique [0002] Hearing loss is one of the important public health problems. According to the assessment data of the hearing disability status of its member states by the World Health Organization, there are more than 460 million people with hearing disabilities. million people suffer from hearing loss, accounting for 34% of the total population with disabilities. Hearing loss can impede communication, which affects relationships and the ability to work, leading to social isolation and reduced quality of life. Studies have shown that older adults with hearing loss are at higher risk of falls, dementia, depression and death compared to individuals without hearing loss. Children with hearing loss experience delays in language development...

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