Audiometric systems for measuring sound source localization capabilities

Abstract

The invention relates to a monitoring system and a monitoring method for measuring the sound source positioning capability. The monitoring system comprises a monitoring cabin, a sound giving device, a measuring chair, a monitoring response recording head frame and a control device, wherein the monitoring cabin comprises a spherical surface inner cabin wall, a sound transmission shielding device is attached into the inner cabin wall, the sound giving device is arranged in a spherical surface cabin wall, the measuring chair is arranged in the monitoring cabin, a regulating device used for regulating the height and the angle is arranged on the measuring chair, the monitoring response recording head frame comprises a head frame and a monitoring sensing device, the monitoring sensing device is arranged on the head frame and is used for monitoring the response action of a testee after hearing test sound and generating corresponding sensing information, and the control device is respectively connected with the sound giving device, the regulating device and the monitoring sensing device and is used for controlling the sound giving device to give out the test sound, regulating the height and the angle of the measuring chair according to received regulating instructions, receiving the sensing information and carrying out calculation according to the sensing information and the position giving out the test sound to obtain a monitoring result. The monitoring system and the monitoring method have the advantages that the measurement accuracy is high, and the measurement is simple and convenient.

Description

technical field [0001] The invention relates to a testing device, in particular to an audiometry system for measuring sound source localization ability. Background technique [0002] Hearing examination or audiometry is an examination to understand the state of auditory function and diagnose diseases of the auditory system by observing the subjects' responses to sound stimuli. The purpose of the hearing examination is to clarify whether there is hearing impairment, the degree of hearing loss, and the nature and location of hearing loss. The purpose of the sound source localization examination is mainly to detect the subject's angular perception of the position of the sound source. It can be used to study the sound source localization ability of people of different ages or different hearing impairments, and to study the rehabilitation effect of hearing aids such as hearing aids and cochlear implants. [0003] In the existing sound source localization technology, the audiome...

AI Technical Summary

Problems solved by technology

[0004] It can be seen from the above content that the existing technology requires the tester to manually sample and calculate the audiometry results. The interior of the existing audiometry cabin is mostly a cuboid structure, and the sound emitted by the speakers near the inner wall of the audiometry room is due to the relative position of the wall. Different, the walls have different reflectivity for sounds of different frequencies, which makes the spectral characteristics of the sound from the same sound source in different positions very different at the test position, and makes it possible for the subjects to remember the spectral distribution characteristics of the sound from the speakers in different positions Different speakers, which will affect the sampling accuracy of the test data, will also affect the accuracy of the test results

The subject can see the position of the speaker, and the test result points out the position of the speaker that he thinks the sound is coming from, rather than directly pointing out the position of the sound that he feels, which has a certain error; and during the test, the position and posture of the subject's head cannot Effectively ensure that the consistency is maintained every time the test sound is issued, that is, look to the direction of the center origin required by the test

And it cannot effectively record the changes in the response of the subject's head and eyes to the sound position during the test

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