Virtual sound source localization capability detection method, system and device and storage medium
A technology of virtual sound source and localization ability, applied in audiometers, diagnostic recording/measurement, medical science, etc., can solve the problems of inability to adjust the degree of hearing loss flexibly, difficulty in finding patients, and fixed degree of loss, so as to facilitate sound source localization. performance, improve test efficiency, and ensure the effect of accuracy
Active Publication Date: 2021-10-22
GUANGZHOU UNIVERSITY
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Problems solved by technology
These two options have different disadvantages, which are as follows: First, the degree of hearing loss cannot be flexibly controlled and adjusted
The first situation is specifically: Let subjects with normal hearing wear foam earplugs (the commonly used model is 3M EAR Classic TM ), using the noise reduction effect of foam earplugs to simulate conductive hearing loss, but the degree of loss is fixed (based on 3M EAR Classic TM Take foam earplugs as an example, the noise reduction value is SNR=28dB), that is, it can only cause an air conduction hearing loss of 28dB HL
It can be seen that the degree of hearing loss cannot be adjusted flexibly, and can only be determined according to the noise reduction value of existing earplugs on the market
Second, it is difficult for patients to find
For researchers without hearing medical support, there are no good resources to find patients; in order for the experimental results to be universal, the number of subjects is also required, and it is difficult to find a corresponding number of subjects who meet all the conditions; patients Due to physical, psychological and other reasons, it may not be able to support the entire experimental process well
[0004] In the prior art, the selection of the types of stimulating sound sources is relatively single, and it is not universal. In addition, the research on sound source localization for the hearing-impaired population in the prior art is mainly based on positioning accuracy and minimum audible angle. These two indicators The research is on the accurate judgment of the angle and the ability to separate different sound sources, neither of which involves the comparison of the relative size of the angle between the sound sources
However, when there are multiple sound source stimuli around the subject, the existing correlation methods cannot accurately judge their relative relationship, which leads to incomplete detection of sound source localization ability
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[0058] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. For the step numbers in the following embodiments, it is only set for the convenience of illustration and description, and the order between the steps is not limited in any way. The execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art sexual adjustment.
[0059] In the description of the present invention, multiple means two or more. If the first and the second are described only for the purpose of distinguishing technical features, it cannot be understood as indicating o...
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The invention discloses a virtual sound source localization capability detection method, system and device and a storage medium. The method comprises the following steps: determining first pink noise for simulating and realizing conductive hearing loss according to a human ear masking effect; determining a plurality of virtual sound source signals in different directions, and performing equal loudness calibration on an in-ear earphone and a bone conduction oscillator according to the virtual sound source signals to obtain first output intensity of the bone conduction oscillator; and simulating a conductive hearing loss environment according to the first pink noise, playing a virtual sound source signal at the first output intensity through the bone conduction oscillator, and further determining a sound source localization capability index of the subject in the conductive hearing loss environment through a bisection task test. The accuracy of sound source localization performance testing is guaranteed, meanwhile, the testing efficiency is improved, the sound source localization capacity in a multi-sound-source scene can be detected, detection is more comprehensive, the sound source localization performance of bone conduction equipment can be improved subsequently, and the method can be widely applied to the technical field of sound source localization.
Description
technical field [0001] The present invention relates to the technical field of sound source localization, in particular to a virtual sound source localization capability detection method, system, device and medium. Background technique [0002] Sound source localization ability is an important auditory function, which helps people to perceive environmental information instantaneously and comprehensively, and plays an important role in the safe and accurate interaction of individuals with the environment. The decline in positioning ability will affect our accurate judgment of sound orientation information. For patients with conductive hearing loss, although bone conduction can improve the patient's audibility and speech perception to a certain extent, whether it can also improve the sound source localization ability remains to be studied. In addition, the natural sound environment is a complex sound environment, and there may be sound sources of different types and direction...
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IPC IPC(8): A61B5/12H04R1/10
CPCA61B5/123H04R1/1008H04R1/1016Y02T90/00
Inventor王杰杨乔赫陆锡坤桑晋秋郑成诗李晓东
OwnerGUANGZHOU UNIVERSITY