Chinese speech automatic audiometric method based on Chinese speech audiometric dynamic word list

Abstract

A Chinese speech automatic audiometric method based on a Chinese speech audiometric dynamic word list belongs to the technical field of speech audiometry and is characterized in that a speech audiometric word list composed of a certain audiometric word list with designated length and an implicit word list with uncertain length. The certain audiometric word list refers to a speech audiometric word list formed by conducting listening classification and definition calculation on initials and finals from the angle of acoustic characteristics of a voice file and compiling with the calculation as the core. The implicit word list is expansion of the certain audiometric word list and is a set of compensation test items selected by a subject who has faults in listening of the certain audiometric word list. Initials and finals of the compensation test items and the fault listening items in the certain audiometric word list belong to one initial and final class. Therefore, a plurality of equivalent speech audiometric dynamic word lists are formed, speech audiometric software used for conducting compensation audiometry on the fault listening items in the certain audiometric word list through the implicit word list items is formed, the audiometric process is automatically finished through a software system in one Chinese speech audiometric system. Compared with a traditional audiometric system, the method has the advantages of being high in audiometry efficiency, audiometry credibility and equivalence property.

Description

technical field [0001] The invention belongs to the technical field of speech audiometry and relates to a design method of a dynamic vocabulary for speech audiometry and a Chinese speech audiometry system. The speech audiometry dynamic vocabulary is a speech audiometry vocabulary composed of a mandatory vocabulary of specified length and an implicit vocabulary of indefinite length. The specified-length mandatory vocabulary refers to a speech audiometry vocabulary compiled from the perspective of the acoustic characteristics of the voice file, which is based on the auditory classification and clarity calculation of the consonants of the consonants. The implicit vocabulary of indefinite length is an expansion of the required vocabulary, which refers to the set of supplementary test items selected by the subject when the subject hears the required vocabulary incorrectly during the listening process. The selected supplementary test items belong to the same category of consonants ...

AI Technical Summary

Problems solved by technology

However, there are some deficiencies in the existing methods: (1) The length of the vocabulary is fixed. The longer the vocabulary, the longer the test time, the fatigue of the subjects, the low test efficiency, and the poor reliability; The lower the valence, the greater the dispersion of the audiometry results; (2) The vocabulary design does not take into account the difference between the acoustic characteristics of speech, and the acoustic characteristics of the speech signal (spectrum, pitch, sound length and energy) in the recording are not considered by the vocabulary. (3) Existing test methods do not take into account the interference of random factors, such as the influence of subjects’ emotions and inattention, which will eventually reduce the reliability of test results

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