CN110974247A

CN110974247A - Device of spatial auditory clinical audiometry system

Info

Publication number: CN110974247A
Application number: CN201911308373.4A
Authority: CN
Inventors: 余光正; 梁林达; 蔡跃新; 谢菠荪
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-04-10

Abstract

The invention relates to a device of a spatial auditory clinical audiometry system. The audiometric system and the audiometric device are suitable for small-scale acoustic spaces clinically used in hospitals, and can support behavioral tests of spatial direction and distance auditory localization under various conditions, including quiet environments or noise environments, single sound sources or multiple sound sources, superposition or separation of noise sources and target sound sources and the like. The space hearing ability audiometry with different space resolutions is realized by changing the loudspeaker interval on the semicircular ring; the variation of the azimuth angle of the test seat is controlled by the rotation of the numerical control rotary table so as to meet the audiometry requirements of different sound source spatial directions; and placing the numerical control rotary table for fixing the test seat on a ground track to realize the test of the space hearing distance positioning capability. The invention can adapt to the spatial auditory clinical audiometry under the condition of a smaller acoustic space, provides an effective test scheme of the spatial auditory ability of the whole space on the horizontal plane in a limited space, and can better meet the spatial coordinate precision requirement of the otology clinical spatial auditory test.

Description

Device of spatial auditory clinical audiometry system

Technical Field

The invention relates to the field of electro-acoustics and medical instruments, in particular to a device of a spatial auditory clinical audiometry system. The audiometric system and the audiometric device are suitable for small-scale acoustic space used clinically in hospitals, and can support behavioral tests of auditory localization in space directions and distances under various conditions.

Background

Audiometry is an examination in which the state of auditory function is known and auditory diseases are diagnosed by observing the response of a subject to sound stimuli. The purpose of a hearing test is to determine the presence or absence of hearing impairment, the degree of hearing loss, and the nature and location of the hearing loss. The purpose of sound source localization examination is primarily to detect the angular perception of the sound source location by the subject. The method can be used for the research of the sound source positioning capability of people with different ages or different hearing losses and the research of the rehabilitation effect after the hearing aids, artificial cochlea and other hearing auxiliary equipment are used.

In the existing sound source localization technology, audiometric systems have been developed to be mature. Since hospitals are usually faced with the reality problem of tense land, small room audiometry is often used, and a listening room is often required to meet various requirements at the same time, including pure tone audiometry, acoustic immittance test, auditory evoked potential test, and the like, in addition to sound source localization examination. Therefore, the method has practical significance for reducing the occupied space of the sound source positioning test system and is very important for improving the resource utilization rate of hospitals.

According to the distance between the sound source and the sound receiving point, the sound field model can be divided into two types: a near-field model and a far-field model. When the distance from the sound source to the center of the head is more than 1.0m, the distance is called a far field; and distances less than 1.0m are called near fields. In the existing invention, for a small listening room, the sound source localization test usually adopts a near-field test method, i.e. the distance from the sound source to the head center is less than 1.0m, and the method is used for adapting to the situation of insufficient space. But is not negligible for the far field, except for the localization capability test for the near field. In order to fully analyze the spatial localization capability of the far field and the near field, some improvements to the sound source localization test system of the small room are necessary.

In addition, if the subject is able to see the speaker position, the test results are indicative of the speaker position that is believed to be sounding, rather than directly indicative of the perceived sound position, which is very error for the spatial localization test. In the prior art, aiming at the influence of vision, a method of performing an experiment in a dark environment or reducing errors caused by vision loss by a mode that a subject wears an eye mask is generally adopted. The fact proves that the hearing-impaired patient has extremely strong dependence on eyesight, and often feels panic under the condition of visual loss, so that the sound source positioning is influenced.

Disclosure of Invention

The invention aims to overcome the defects that the space of a hearing test system is insufficient due to the ubiquitous land shortage in a hospital, the psychological problem caused by visual loss in the process of spatial hearing audiometry and the like, and designs a device which is suitable for a small-scale acoustic space clinically used in the hospital and can support the behavioral test of spatial direction and distance auditory localization under various conditions.

In order to achieve the purpose, the invention adopts the following technical scheme:

a device of a spatial auditory clinical audiometry system comprises a semicircular ring bracket used for fixing a plurality of loudspeaker sets, a multi-channel loudspeaker sound playback module, a seat module and a wire; the semi-circular ring support for fixing the multi-loudspeaker set comprises a base, a support, a semi-circular ring loudspeaker tray and a semi-circular shading cloth curtain slide rail; a semicircular ring support used for fixing a plurality of loudspeaker groups is arranged in the device, a multichannel loudspeaker sound reproducing module is arranged on one surface, opposite to the semicircular ring, of the semicircular ring support used for fixing the plurality of loudspeaker groups, and a seat module is arranged on the arc-shaped inner side of the semicircular ring support used for fixing the plurality of loudspeaker groups; the semicircular ring support for fixing the multiple loudspeaker sets is fixed on the ground through the base, and the semicircular ring loudspeaker tray is arranged on the support and fixed on the ground through the base; the semicircular shading cloth curtain slide rail is arranged on the bracket and is fixed on the ground through the base; the wiring is used for connecting the multichannel loudspeaker sound playback module and a numerical control part in the seat module; the test system adopts the loudspeaker arrangement of a semicircular area to adapt to the application of a small-scale acoustic space; the position of the loudspeaker on the tray is adjusted to support spatial audiometry with different horizontal azimuth angle intervals; the audiometry range of the spatial azimuth angle is expanded by rotating the seat; the height of the chair is adjusted to adapt to listeners of different ages or heights; the spatial hearing test under the conditions of blind hearing or audio-visual interaction and the like is realized by hanging or removing the shading cloth curtain. Therefore, the system can basically meet various behavioral tests of spatial hearing, can be used as an auxiliary diagnostic device of clinical hearing tests, and can provide accurate data support for spatial hearing research.

The invention also comprises an observation window and an operation platform; the multichannel loudspeaker sound playback module is placed on the operation table, and the observation window is arranged on a wall surface above the operation table. Also includes a door; the door is arranged on the wall surface.

Furthermore, positioning holes are arranged on the semicircular loudspeaker tray at intervals of 5 degrees (the general azimuth angle audiometric precision is about 5 degrees), and the position of the loudspeaker on the semicircular loudspeaker tray is adjusted to support space audiometry at intervals of different horizontal azimuth angles; the semi-circular shading cloth curtain slide rail consists of a slide rail bracket, three slide rail rods and cloth curtain hooks, wherein the three slide rail rods are fixed on the slide rail bracket and are respectively positioned at two ends of the semicircular ring and in the middle of the semicircular ring; the upper annular part of the cloth curtain hook is arranged on the slide rail rod and can slide on the slide rail rod; the lower part of the cloth curtain hook is used for fixing the shading cloth curtain, so that the spatial hearing test under the conditions of blind hearing or audio-visual interaction and the like is realized.

Furthermore, the multi-channel loudspeaker sound reproducing module consists of a computer, a sound card, a power amplifier and a loudspeaker; the computer, the sound card, the power amplifier and the loudspeaker are sequentially connected, and the loudspeaker is positioned on the semicircular annular loudspeaker tray; different spatial auditory behavioural tests are realized through software design.

Furthermore, the seat module consists of a ground slide rail, a numerical control rotary table, an electric lifting motor and a self-made seat; the orientation of a listener is changed through the numerical control turntable, so that the azimuth angle testing range is expanded; the seat is lifted through the electric motor, so that the two ears of listeners with different heights are as high as the loudspeaker system; the self-made seat comprises a seat body, a head hoop and armrests, and is beneficial to ensuring that the center of the head of a subject is basically positioned at the center of a semicircular loudspeaker system; from last extremely down, self-control seat body is fixed in on the electric lift motor, the electric lift motor is fixed in the numerical control revolving stage, the control of numerical control revolving stage the ground slide rail, through the synthetic mode of primary and secondary track, promptly the ground slide rail contains the primary rail that is fixed in the numerical control revolving stage and is fixed in the sub-rail on ground, be provided with the scale on the sub-rail that is fixed in ground, its starting point is located semicircle ring speaker tray positive center below and corresponds the position, can promote the seat module along the sub-rail in the in-service use.

Furthermore, the rotation of the self-made seat is controlled by the numerical control rotary table, and scales are arranged on the numerical control rotary table, so that the numerical control rotary table can be controlled to rotate accurately, the audiometry range of a spatial azimuth angle is expanded, and the audiometry requirements of different sound source spatial azimuths are met. The height of the self-made seat is controlled by the electric lifting motor, so that the height of two ears of audiometers with different heights is the same as that of the loudspeaker system. The height of the self-made seat is adjusted to adapt to listeners of different ages or heights. The self-made chair is provided with auxiliary supporting devices such as a head hoop and armrests, and is beneficial to ensuring that the center of the head of a testee is basically positioned at the center of a circle of the semicircular loudspeaker system.

Furthermore, the self-made seat of the seat module needs to meet the requirements of the size and the structural characteristics of the electric lifting motor on one hand and the requirements of positioning the spatial positions of the subject and the loudspeaker on the other hand, and based on the design of the self-made seat, the height of the loudspeaker support is a fixed value, and the height of the seat only needs to be adjusted in the experiment, so that when different subjects are on the seat, the ear canal opening and the loudspeaker are on the same horizontal plane, and the heights of all the loudspeakers do not need to be adjusted, thereby improving the debugging efficiency of the test system.

Furthermore, the ground slide rail comprises a main rail fixed at the bottom of the numerical control turntable and a sub rail fixed on the ground, and scales are arranged on the sub rail. Through the assistance of the ground sliding rail, the seat module is controlled to move along the sub-rail fixed on the ground, and the test of the space hearing distance positioning capability can be realized.

The invention can adapt to the spatial auditory clinical audiometry under the condition of a smaller acoustic space, provides an effective test scheme of the spatial auditory ability of the whole space on the horizontal plane in a limited space, and can better meet the spatial coordinate precision requirement of the otology clinical spatial auditory test.

Compared with the prior art, the invention has the advantages and beneficial effects that:

(1) space hearing ability audiometry with different horizontal azimuth angle intervals is realized by changing the loudspeaker intervals on the semicircular tray; the spatial orientation of the seat of the testee is adjusted by rotating the numerical control turntable, so that the testee can test the spatial auditory horizontal plane orientation of different azimuth angles (such as the front, the side and the back); the seat slides along the ground slide rail, so that the spatial auditory distance positioning test is realized.

(2) Compared with other technologies, the invention designs a multifunctional effective test scheme for the spatial hearing ability of the whole space on the horizontal plane aiming at the small-space listening room in the hospital. The scheme can meet various spatial hearing ability tests of spatial hearing, including high-precision horizontal plane omnibearing direction positioning (the resolution can reach 5 degrees) and distance positioning.

Drawings

FIG. 1 is a schematic diagram of a protocol and apparatus for spatial auditory clinical audiometry;

FIG. 2 is a schematic view of a shade curtain slide rail;

FIG. 3 is a schematic diagram of a multi-channel speaker playback module;

FIG. 4 is a view showing a combination structure of a turntable and a seat;

FIG. 5 is a schematic view of a ground slide;

fig. 6 is an audio signal processing block diagram.

The various components in the figure are as follows: the device comprises a semicircular ring support 1 for supporting a loudspeaker set, a multichannel loudspeaker sound reproducing module 2, a computer 21, a sound card 22, a power amplifier 23, a loudspeaker 24, a seat module 3, a ground slide rail 31, a female rail 311, a sub-rail 312, a numerical control rotary table 32, an electric lifting motor 33, a self-made seat 34, a head hoop 341, an armrest 342, an observation window 4, an operation table 5, a door 6, a wiring 7, a base 11, a support 12, a semicircular annular loudspeaker tray 13, a positioning hole 131, a semicircular shading cloth curtain slide rail 14, a slide rail support 141, a slide rail rod 142 and a cloth curtain hook 143.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.

Example 1

As shown in fig. 1, the device comprises a semicircular ring bracket 1 for fixing a multi-speaker group, a multi-channel speaker sound reproduction module 2, a seat module 3 and a wire 7; the semi-circular bracket 1 for fixing the multiple loudspeaker sets comprises a base 11, a bracket 12, a semi-circular loudspeaker tray 13 and a semi-circular shading cloth curtain slide rail 14; a semicircular ring support 1 for fixing a plurality of loudspeaker sets is arranged in the device, a multichannel loudspeaker sound reproducing module 2 is arranged on one surface, opposite to the semicircular ring, of the semicircular ring support 1 for fixing the plurality of loudspeaker sets, and a seat module 3 is arranged on the arc-shaped inner side of the semicircular ring support 1 for fixing the plurality of loudspeaker sets; the semi-circular ring support 1 for fixing the multiple loudspeaker sets is fixed on the ground through a base 11, the base 11 is flatly placed on the ground and is divided into six square stainless steel plates which are uniformly distributed, and the semi-circular ring loudspeaker tray 13 is arranged on the support 12 and is fixed on the ground through the base 11; the semicircular shading cloth curtain slide rail 14 is arranged on the bracket 12 and is fixed on the ground through the base 11; the height of the annular loudspeaker tray 13 is 1.2m, and the height of the annular loudspeaker tray is close to the height of ears when a person sits on the annular loudspeaker tray. (ii) a The wiring 7 is used for connecting the multichannel loudspeaker sound reproduction module (2) and a numerical control part in the seat module 2; the test system adopts the loudspeaker arrangement of a semicircular area to adapt to the application of a small-scale acoustic space; the position of the loudspeaker on the tray is adjusted to support spatial audiometry with different horizontal azimuth angle intervals; the audiometry range of the spatial azimuth angle is expanded by rotating the seat; the height of the chair is adjusted to adapt to listeners of different ages or heights; the spatial hearing test under the conditions of blind hearing or audio-visual interaction and the like is realized by hanging or removing the shading cloth curtain. The embodiment also comprises an observation window 4 and an operation table 5; the multichannel loudspeaker sound reproducing module 2 is placed on the operating platform 5, and the observation window 4 is arranged on the wall above the operating platform 5. The present embodiment further comprises a door 6; the door 6 is arranged on the wall surface. Positioning holes 131 are arranged on the semicircular annular loudspeaker tray 13 at intervals of 5 degrees (the general azimuth angle audiometric precision is about 5 degrees), and the spatial audiometry at intervals of different horizontal azimuth angles is supported by adjusting the position of the loudspeaker on the semicircular annular loudspeaker tray 13; the semicircular shading cloth curtain slide rail 14 consists of a slide rail bracket 141, three slide rail rods 142 and cloth curtain hooks 143, wherein the slide rail rods 142 are fixed on the slide rail bracket 141, and the slide rail brackets 141 are respectively positioned at two ends of the semicircular ring and in the middle of the semicircular ring; the upper circular ring part of the curtain hanger 143 is arranged on the slide rail bar 142 and can slide on the slide rail bar 142; the lower part of the cloth curtain hook 143 is used for fixing the shading cloth curtain. The multi-channel loudspeaker sound reproducing module 2 consists of a computer 21, a sound card 22, a power amplifier 23 and a loudspeaker 24; the computer 21, the sound card 22, the power amplifier 23 and the loudspeaker 24 are sequentially connected, and the loudspeaker 24 is positioned on the semicircular annular loudspeaker tray 13. The seat module 3 consists of a ground slide rail 31, a numerical control rotary table 32, an electric lifting motor 33 and a self-made seat 34; the orientation of a listener is changed through the numerical control rotary table 32, so that the azimuth angle testing range is expanded; the seat is lifted through the electric motor 33, so that the two ears of listeners with different heights are as high as the loudspeaker system; the homemade seat 34 comprises a seat body, a head band 341 and an arm rest 342, which is beneficial for ensuring that the center of the head of the subject is substantially located at the center of the speaker system in a semicircular arrangement; from top to bottom, the self-control seat body is fixed in on the electric lift motor 33, the electric lift motor 33 is fixed in numerical control revolving stage 32, numerical control revolving stage 32 control ground slide rail 31, through the synthetic mode of primary and secondary track, promptly ground slide rail 31 contains the female rail 311 that is fixed in numerical control revolving stage 32 and the sub-rail 312 that is fixed in ground, be provided with the scale on the sub-rail that is fixed in ground, its starting point is located semicircle ring speaker tray 13 positive center below and corresponds the position, can promote seat module 3 along sub-rail 312 in the in-service use.

The wiring 7 comprises a signal connecting wire of the multichannel loudspeaker sound reproducing module 2 and a system connecting wire for controlling the rotation of the numerical control rotary table and the lifting of the electric lifting motor by the computer through specific software.

The computer controls the sound feeding, the audiometric signal is white noise of 70dB (SPL), namely, the sound pressure level of the sound emitted by each loudspeaker at the center of the head of the subject is 70dB, and the sound pressure level can be calibrated by a sound pressure level meter. In the test process, two experimenters are arranged, and the experimenters are located in front of an operation table to control the feed of signals at a computer terminal; and (4) feeding back by two experimenters according to the testees, and recording data.

According to the arrangement, the test flow of the space positioning capability of the horizontal plane with the azimuth angle of 0-360 degrees (the direction right in front of the subject is defined as 0 degree of the azimuth angle, and the azimuth angle is increased along the clockwise direction) is as follows:

firstly, connecting hardware, debugging a multi-loudspeaker playback system, and calibrating the sound pressure level at a listening point to enable the sound pressure level at the center of a head to be 70 dB; a shading cloth curtain is used for completely shading the sound source, so that the blind listening effect is realized;

the positions of the seat and the testee are adjusted individually according to the testee, including the height of the seat, the size of the head hoop and the head orientation of the testee, so that the ear canal mouth of the testee is flush with the plane of the loudspeaker and faces to the center of the semicircular ring, and thus, the positions of the ears and the loudspeakers are on the same horizontal plane; in the test process, the position of the subject on the self-made seat is fixed, and the azimuth angle is changed only through the rotation of the digital rotary table;

when the testee is sufficiently prepared, the experimenter sequentially plays a test signal once through thirteen loudspeakers on the annular loudspeaker tray, the testee feeds back, and prompts the actual azimuth information, so as to carry out the sound source positioning training of the front half plane of the testee before testing; the chair is rotated by 180 degrees through the digital rotary table, so that the testee faces the center of the semicircular ring, and the test and the prompt are carried out in the same step, and the sound source positioning training of the rear half plane is carried out. Preparing for formal experiments through training of front and back half plane sound source positioning of a subject;

a first experimenter uses a computer in front of an operation table to control a loudspeaker to randomly play a test signal sequence which is set in advance; after the test signal is heard by the test subject, the sound source position is indicated, and the experimenter reads the angle indicated by the test subject through the angle mark on the ground and records the angle in the data recording table. And sequentially testing the sound source positioning capability of the front half plane and the rear half plane, namely the test process comprises two groups, namely, a test subject faces towards the center of the semicircular ring and rotates 180 degrees and then faces towards the center of the semicircular ring. The test procedure for each group played a total of 13 x 5 to 65 groups of test signals, i.e., thirteen azimuths, which were repeated five times for each azimuth.

The sum of the absolute values of the differences between the sound source position judged by the subject and the actual sound source position of the 100 times is called total error in (°) as statistical experimental data. By counting the test results, we can quantitatively estimate the spatial hearing ability of the subject. After the experiment is finished, the seat rotary table can be pushed to the inner side of the room, and the limited listening room space is not occupied as far as possible.

The second embodiment of the invention can be used for spatial auditory distance positioning audiometry. The audiometric system provided by the above may implement the audiometric method described in the second embodiment, that is, the audiometric method provided by the second embodiment is suitable for the audiometric system provided by the first embodiment. Specifically, the second embodiment is based on the audiometric system described in the first embodiment, and the audiometric method includes:

the audiometric system adopts the arrangement of one loudspeaker, namely only the loudspeaker positioned at the right center of the semicircular annular loudspeaker tray. In the test, the loudspeaker is kept still on the semi-circular loudspeaker tray, and the distance and the azimuth angle in the sound source positioning test are respectively controlled only by the movement of the seat along the track fixed on the ground and the rotation of the numerical control rotary table. The distance represents the distance of the speaker to the center position of the subject's head. In the test, the test distances include 20cm, 30cm, 50cm, 70cm, 100cm and 120cm, and the test azimuth angles include 0 degrees, 45 degrees, 90 degrees, 135 degrees and 180 degrees.

Specifically, the track fixed on the ground in the ground track in the seat module is provided with scales for marking the position and the moving distance of the seat. In the embodiment, the spatial auditory localization capability of a test subject on sound sources at different distances is tested by moving the homemade seat on a ground track; the self-made seat is controlled to rotate through the numerical control rotary table, the distance positioning capability on different azimuth angles on the horizontal plane is tested, for example, the initial position is that a subject faces to the center of a semicircle, after the seat rotates 15 degrees clockwise (depression angle), the corresponding azimuth angle of the position of the loudspeaker is-15 degrees, namely the direction right ahead of the subject is defined as zero degree of the azimuth angle, and the azimuth angles increase in sequence along the clockwise direction.

According to the audiometric method, the test can be carried out in two groups, namely a loudness equalization group and a no loudness equalization group. The loudness equalization group is used for carrying out certain processing on test signals at different distances, namely, the measured sound pressure level at the center position of the head of the sound played by the audiometric signal at each distance from the loudspeaker is 70dB through equalization; the loudness-free equalization group means that the test signals at different distances are not processed additionally, that is, all the test signals are consistent in strength.

Hardware is first connected and the multi-speaker playback system is debugged. Specifically, when the playback system works, the sound pressure level at the center of the head is measured, the signal intensity at each distance of the loudness equalization group is debugged, and the sound pressure levels at the center of the head at each distance are ensured to be consistent, namely 70 dB; and for the loudness-free equalization group, the strength of the test signal is debugged, so that the loudspeaker plays the signal, and when the seat is positioned at the center of the semicircle, the sound pressure level at the center of the head is 70 dB. The blind listening effect is realized by completely shielding the sound source by the curtain cloth;

the positions of the seat and the testee are adjusted individually according to the testee, including the height of the seat, the size of the head hoop and the head orientation of the testee, so that the ear canal mouth of the testee is flush with the plane of the loudspeaker and faces to the center of the semicircular ring, and thus, the positions of the ears and the loudspeakers are on the same horizontal plane;

the test signal selects white noise of 70 dB. When the testee is sufficiently prepared, playing test signals under different azimuth angles and different distances, feeding back by the testee, and prompting actual azimuth information, so as to train the testee before testing and prepare formal experiments;

controlling the numerical control turntable to rotate by a certain angle aiming at a certain azimuth angle, so that the loudspeaker is positioned at the audiometric azimuth angle; after the test signal is played, the subject feeds back the sensing distance, and the experimenter records the data. Then the chair is slid, the distance between the loudspeaker and the subject is changed, the azimuth angle is kept unchanged, the signal is played again, the subject feeds back, and the experimenter records the data. Each distance test at each azimuth was repeated five times and was accomplished by movement of the seat along the slide rails. And rotating the seat until all the signals under the azimuth angle are tested, changing the azimuth angle, and repeating the experimental step of the previous azimuth angle. The audiometric groups include a distance equalization group and a non-distance equalization group, i.e., an experimental group subjected to loudness equalization at different distances and an experimental group not subjected to loudness equalization at different distances. Each experimental group can be tested by the above procedure.

Similarly, the orientation discrimination capability at the rear part or the positioning capability in other angle intervals can be tested through the rotation of the seat; by adjusting the loudspeaker interval, test results with different resolutions can be obtained. According to the design scheme and the device for the spatial auditory clinical audiometry system, the comprehensive spatial positioning capability test can be met in a small space, and the spatial auditory clinical audiometry system is high in coordinate precision and flexible in application.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. The device of the clinical audiometry system of the sense of hearing of a kind of space, including the semicircular ring support (1) used for fixing the multi-speaker group, the multi-channel speaker sound replays the die set (2), the seat die set (3) and walks and walk the line (7); the semi-circular ring support (1) for fixing the multiple loudspeaker sets comprises a base (11), a support (12), a semi-circular ring loudspeaker tray (13) and a semi-circular shading cloth curtain slide rail (14); a semicircular ring support (1) for fixing a plurality of loudspeaker sets is arranged in the device, a multichannel loudspeaker sound reproducing module (2) is arranged on one surface, opposite to the semicircular ring, of the semicircular ring support (1) for fixing the plurality of loudspeaker sets, and a seat module (3) is arranged on the arc-shaped inner side of the semicircular ring support (1) for fixing the plurality of loudspeaker sets; the semi-circular ring support (1) for fixing the multiple loudspeaker sets is fixed on the ground through a base (11), and the semi-circular ring loudspeaker tray (13) is arranged on the support (12) and fixed on the ground through the base (11); the semicircular shading cloth curtain slide rail (14) is arranged on the bracket (12) and is fixed on the ground through the base (11); the wiring (7) is used for connecting the multichannel loudspeaker sound reproduction module (2) and a numerical control part in the seat module (2); the test system adopts the loudspeaker arrangement of a semicircular area to adapt to the application of a small-scale acoustic space; the position of the loudspeaker on the tray is adjusted to support spatial audiometry with different horizontal azimuth angle intervals; the audiometry range of the spatial azimuth angle is expanded by rotating the seat; the height of the chair is adjusted to adapt to listeners of different ages or heights; the spatial hearing test under the conditions of blind hearing or audio-visual interaction and the like is realized by hanging or removing the shading cloth curtain.

2. The spatial auditory clinical audiometry system arrangement according to claim 1, further comprising a viewing window (4) and a console (5); the multichannel loudspeaker sound playback module (2) is placed on the operating platform (5), and the observation window (4) is arranged on a wall surface above the operating platform (5).

3. The spatial auditory clinical audiometry system arrangement of claim 1, further comprising a door (6); the door (6) is arranged on the wall surface.

4. The spatial auditory clinical audiometry system device according to claim 1, wherein the semicircular ring-shaped speaker tray (13) is provided with positioning holes (131) at 5-degree intervals (general azimuth audiometry precision is about 5 degrees), and spatial audiometry at different horizontal azimuth intervals is supported by adjusting the position of the speaker on the semicircular ring-shaped speaker tray (13); the semi-circular shading cloth curtain slide rail (14) consists of slide rail brackets (141), slide rail rods (142) and cloth curtain hooks (143), the slide rail rods (142) are fixed on the slide rail brackets (141), and the number of the slide rail brackets (141) is three, and the slide rail rods are respectively positioned at two ends of the semicircular ring and in the middle of the semicircular ring; the upper circular ring-shaped part of the cloth curtain hook (143) is arranged on the slide rail rod (142) and can slide on the slide rail rod (142); the lower part of the cloth curtain hook (143) is used for fixing the shading cloth curtain.

5. The spatial auditory clinical audiometry system device according to claim 1, wherein the multi-channel speaker sound reproduction module (2) is composed of a computer (21), a sound card (22), a power amplifier (23) and a speaker (24); the computer (21), the sound card (22), the power amplifier (23) and the loudspeaker (24) are sequentially connected, and the loudspeaker (24) is positioned on the semicircular annular loudspeaker tray (13).

6. The spatial auditory clinical audiometry system device according to claim 1, wherein the seat module (3) is composed of a ground slide rail (31), a numerical control turntable (32), an electric lifting motor (33) and a self-made seat (34); the orientation of a listener is changed through the numerical control rotary table (32), so that the azimuth angle testing range is expanded; the seat is lifted through the electric motor (33), so that the two ears of listeners with different heights are as high as the loudspeaker system; the homemade seat (34) comprises a seat body, a head band (341) and an armrest (342), and is beneficial to ensuring that the center of the head of a subject is substantially positioned at the center of a semicircular loudspeaker system; from last to down, self-control seat body is fixed in on electric lift motor (33), electric lift motor (33) are fixed in numerical control revolving stage (32), numerical control revolving stage (32) control ground slide rail (31), through the synthetic mode of primary and secondary track, promptly ground slide rail (31) contain female rail (311) that are fixed in numerical control revolving stage (32) and sub-rail (312) that are fixed in ground, be provided with the scale on the sub-rail that is fixed in ground, its starting point is located semicircle ring speaker tray (13) centre below and corresponds the position, can promote seat module (3) along sub-rail (312) in the in-service use.