CN113347547A - Test audio playing method based on sound amplification system and debugging method thereof - Google Patents
Test audio playing method based on sound amplification system and debugging method thereof Download PDFInfo
- Publication number
- CN113347547A CN113347547A CN202110454816.1A CN202110454816A CN113347547A CN 113347547 A CN113347547 A CN 113347547A CN 202110454816 A CN202110454816 A CN 202110454816A CN 113347547 A CN113347547 A CN 113347547A
- Authority
- CN
- China
- Prior art keywords
- sound
- audio
- test
- detection
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/007—Monitoring arrangements; Testing arrangements for public address systems
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a test audio playing method based on an acoustic amplification system and a debugging method thereof, belonging to the field of acoustic equipment. The test audio playing method comprises the following steps: s1, installing sound reinforcement equipment at a preset position according to the size of a test area and data of the sound reinforcement equipment to form a distributed sound box or loudspeaker array, S2, generating a uniform sound field in the test area by using a sound reinforcement system, S3, carrying out sound field calibration on the sound reinforcement system, and S4, after the sound reinforcement system finishes the sound field calibration, enabling a tested person to enter the test area to carry out hearing damage degree detection. The sound amplification system generates a uniform sound field in a test area, and the sound field calibration is carried out on the sound amplification system, so that the test environment can be ensured to meet the hearing test requirement, the interference of external noise and the interaction influence between two ears are avoided, and the problems that the existing earphone is used for detecting the extrusion sense of the earphone on the ears in the hearing and part of users generate physiological tinnitus after wearing the earphone, so that the perception of the physiological tinnitus on the test audio is interfered are solved.
Description
Technical Field
The invention belongs to the field of acoustic equipment, and particularly relates to a test audio playing method based on an acoustic amplification system and a debugging method thereof.
Background
The existing detection method of the hearing detection system requires each tested user to wear an earphone, and the earphone is used for transmitting test audio frequency to carry out hearing detection, but the following problems exist when the earphone is used for detection: firstly, wearing the earphone easily causes uncomfortable experience feeling to some users, and further possibly influences the judgment of the users, including that some users are not used to the extrusion feeling of the earphone to the ear, so that the perception of the users to the test audio is interfered; secondly, wearing the earphones is not friendly to people with part of otological diseases, and part of users generate physiological tinnitus after wearing the earphones so as to interfere the perception of the physiological tinnitus to test audio, so that the tinnitus users should avoid wearing the earphones for hearing test.
Disclosure of Invention
The purpose of the invention is as follows: a test audio playing method based on a sound amplification system and a debugging method thereof are provided to solve the problems in the prior art.
The technical scheme is as follows: the audio playing test method based on the sound amplification system is used for detecting the hearing damage degree of a tested person;
the sound amplification system comprises: a controller, and.
And the sound amplifying equipment is electrically connected with the controller, and a plurality of loudspeakers form a distributed sound box or loudspeaker array and are used for playing the test audio to the test area.
The method comprises the following steps:
and S1, mounting the sound amplifying equipment at a preset position according to the size of the test area and the data of the sound amplifying equipment to form a distributed sound box or a loudspeaker array.
S2, generating a uniform sound field in the test area using a sound amplification system.
And S3, carrying out sound field calibration on the sound reinforcement system.
And S4, after the sound amplifying system finishes sound field calibration, the tested person enters a test area to test the hearing damage degree.
In a further embodiment, the method further comprises: and S5, using the sound amplification equipment to sequentially play the test audio with a plurality of sound intensities on a plurality of frequency points.
And S6, sequentially determining a plurality of threshold sound intensities corresponding to a plurality of frequency points from the plurality of sound intensities according to the feedback of the tested user.
And S7, determining the target sound intensity according to the threshold sound intensities and the feedback of the tested person, and determining the hearing damage degree corresponding to the target sound intensity according to the corresponding relation between the hearing damage and the sound intensity.
And each frequency point in the plurality of frequency points corresponds to the test audio of the plurality of sound intensities.
The threshold sound intensity is the minimum sound intensity of the audible test audio correctly fed back by the user in the hearing test, and one frequency point corresponds to one threshold sound intensity.
In a further embodiment, the method further comprises: s8, at least two tested persons participate in the detection of hearing impairment in the test area.
In a further embodiment, the sound reinforcement system further comprises: and the signal acquisition device is electrically connected with the controller.
And the at least two receiving devices are arranged in the test area, are electrically connected with the signal acquisition device and are used for receiving the audio information in the test area in real time.
And the vision equipment is arranged in the test area, is electrically connected with the signal acquisition device and is used for monitoring the actions of the tested personnel in the test area.
And the temperature detection equipment is arranged in the test area, is electrically connected with the signal acquisition device and is used for detecting temperature data in the test area.
And the humidity detection equipment is arranged in the test area, is electrically connected with the signal acquisition device and is used for detecting humidity data in the test area.
And the air pressure detection device is arranged in the test area, is electrically connected with the signal acquisition device and is used for detecting air pressure data in the test area.
In a further embodiment, the sound reinforcement system further comprises: the hearing test room, the distributed enclosure or speaker array, and the test area are all disposed within the hearing test room.
The hearing test room comprises: a plurality of removably coupled acoustic diffusion modules and acoustic absorption modules.
The acoustic diffusion module is a one-dimensional secondary residual sequence diffuser made of a hard panel.
The acoustic absorption module is a cloth fiber acoustic board.
Can be quick through dismantling the acoustics diffusion module of connection and acoustics absorption module and piece up a good hearing test room of acoustic performance, the size of having solved current ordinary room and the acoustics defect that material itself exists, can also demolish acoustics diffusion module and acoustics absorption module and accomodate when not carrying out the hearing and detect moreover, use ordinary room as its way, it is big to have solved the reconstruction engineering volume to and the problem that room utilization rate is low.
In a further embodiment, the method further comprises: and S9, receiving the audio information in the test area in real time by using the receiving equipment, detecting the parameter difference between the actual test audio in the test area and the test audio played by the sound amplifying equipment, judging whether the test result is valid according to the action, the temperature data, the humidity data and the air pressure data of the tested person, and if the test result is judged to be invalid, re-detecting.
And S10, if the test result is judged to be valid, taking the actual frequency point and the actual sound intensity of the actually tested audio frequency as the target sound intensity, and determining the hearing damage degree corresponding to the target sound intensity according to the corresponding relation between the hearing damage and the sound intensity.
Whether this test result is effective is judged through receiving arrangement, visual equipment, temperature-detecting equipment, humidity check out test set and atmospheric pressure detection device detection actual test audio frequency, surveyed personnel's action, temperature data, humidity data and atmospheric pressure data to with the actual frequency point and the actual sound intensity of actual test audio frequency as target sound intensity, can the analysis interference factor, avoid detecting because of the unsafe problem of interference.
In a further embodiment, the method further comprises: and S11, when single-ear detection is carried out, the controller of the sound amplifying system controls a plurality of loudspeakers to randomly play test audio for randomly testing two ears of a tested person.
S12, the random test method comprises the steps that a controller of the sound amplifying system numbers sound amplifying equipment to generate a no-repeat number group, the controller controls a plurality of loudspeakers to output detection audio with preset frequency points and strength according to the number group, and hearing detection of the detection audio with the preset frequency points and strength on left and right ears is completed under random conditions. The controller randomly outputs the detected audio to different playing modules, so that the regularity of single-ear playing can be broken, a user can be more concentrated on hearing detection, and the problem that in the prior art, the tested person subjectively puts attention on the undetected ear and neglects the tested audio heard by the detected ear, and the test result is inaccurate is solved.
In a further embodiment, the method further comprises: s13, the test is performed with the test audio intensity lowered or increased, and the number group is reset and the test audio is output.
S14, when the audio storage module outputs the detection audio with preset frequency point and strength to the corresponding sound track or playing direction of the playing module according to the number group, the audio storage module randomly adjusts the output time interval of two adjacent detection audio or randomly adjusts the playing time length of the detection audio, and the output time interval of two adjacent detection audio or randomly adjusts the playing time length of the detection audio by renumbering on the basis of the binaural cross random detection, thereby further solving the problem that the test result is inaccurate due to misleading of the regularity of the detected audio playing of the detected user.
In a further embodiment, the sound reinforcement system further comprises: the eyeball capturing device is electrically connected with the controller, the testing area is within the detection range of the eyeball capturing device, and the eyeball capturing device is used for detecting the eyeball displacement direction and distance of a person to be tested in the testing area.
And the display device is electrically connected with the controller and is used for displaying the pure-color background and the color warning area to focus the visual attention of the tested person in a preset range of the color warning area.
The method further comprises the following steps: s15, before the detection audio is played, the display unit displays a solid background and a color warning area, and the color warning area is used for enabling the visual attention of the person to be detected to be concentrated in a preset range of the color warning area.
And S16, when the eyeball capturing device detects that the visual attention of the tested person is focused in the preset range of the color warning area within the preset time, playing the detection audio.
And S17, when the detection audio is played, the display unit is closed or only displays a pure background, so that the interference of the color warning area on the eyeball moving direction of the detected person is avoided.
And S18, the eyeball capturing device detects the displacement direction and distance of the eyeball and uploads the detected data to the information processing module, and the controller correspondingly compares the detected audio with the eyeball data.
S19, when the detection audio is not played or the detection audio is played within the preset times, the controller sets a detection area according to the eyeball displacement distance detected by the eyeball capture equipment. When the detection audio is played for detection and the eyeball displacement does not exceed the detection area, the audio is judged to be misjudged or not heard. By detecting the moving direction and distance of the eyeballs, the problem that the detection result is inaccurate due to the fact that only a button type feedback module is used can be solved by utilizing the natural reaction that a person turns to see to the side with sound when hearing the sound from one side. The visual attention of the tested person is focused in the preset range of the color warning area through the color warning area of the display unit, and the problem of inaccurate detection when the head of the person rotates beyond the detection area of the eyeball capturing module can be avoided.
The debugging method for the sound amplification system comprises the following steps: and the signal acquisition device is electrically connected with the controller and the sound amplifying equipment.
And the signal processing module is arranged in the controller and used for adjusting the playing signal of the sound amplifying equipment.
And the at least two receiving devices are arranged in the test area, are electrically connected with the signal acquisition device and are used for receiving the audio information in the test area in real time.
And S20, the sound amplifying equipment plays the test audio into the test area, the receiving equipment receives the audio information in the test area, the signal acquisition device compares the played audio with the received audio, and the position of the sound amplifying equipment is adjusted or the played signal of the sound amplifying equipment is controlled according to the signal comparison result, so that the test area is in a uniform and stable sound field.
S21, the controller controls the sound reinforcement device to realize a bright area and a dark area of the sound field within the predetermined area, wherein the bright area is an area where the radiant energy concentration is higher than the dark area.
Has the advantages that: the invention discloses a test audio playing method based on an acoustic amplification system and a debugging method thereof. The sound amplifying system is used for generating an even sound field in a test area, sound field calibration is carried out on the sound amplifying system, the test environment can be guaranteed to meet the requirement of hearing detection, interference of external noise and interaction influence between ears and the like can be avoided, and the problems that existing earphones are used for detecting extrusion of the ears, physiological tinnitus is generated after the earphones are worn by some users, and then perception of the test audio is interfered are solved.
Drawings
FIG. 1 is a schematic diagram of the sound field calibration of the present invention.
Fig. 2 is a schematic diagram of the test audio playback with a hearing test room of the present invention.
Fig. 3 is a schematic diagram of the sound field calibration process of the present invention.
Fig. 4 is a schematic view of a hearing test room of the present invention.
Reference numerals shown in fig. 1 to 4: the device comprises a controller 1, a test area 2, a sound amplification device 3, a signal acquisition device 4, a receiving device 5, an artificial head device 6, a hearing detection room 7, a display device 8, an eyeball capture device 9, a bottom foundation module 71, an acoustic absorption module 72, an acoustic diffusion module 73 and a corner module 74.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
The invention discloses a test audio playing method capable of carrying out hearing detection without wearing an earphone.
The test audio playing method is realized based on an acoustic amplification system, and the acoustic amplification system comprises a controller 1, an acoustic amplification device 3, a signal acquisition device 4 and a receiving device 5.
The controller 1 is a computer or has an acoustic signal processing device.
The sound amplifying device 3 electrically connected with the controller 1 has at least two, and a plurality of loudspeakers form a distributed sound box or loudspeaker array, and is used for playing the test audio into the test area 2, the number of loudspeakers in the system and the sound field range to be controlled need to be changed according to the requirements, namely when the number of users to be tested is increased, the number of loudspeakers needed and the sound field range to be controlled are increased.
The test audio playback method includes S1, mounting the sound reinforcement device 3 at a predetermined position according to the size of the test area 2 and the data of the sound reinforcement device 3 to form a distributed enclosure or speaker array.
S2. generating a uniform sound field in the test area 2 using a sound amplification system.
And S3, carrying out sound field calibration on the sound reinforcement system.
And S4, after the sound amplifying system finishes sound field calibration, the tested person enters the test area 2 to test the hearing damage degree.
In this embodiment, the playing method further includes S5, playing the test audio with multiple sound intensities at multiple frequency points in sequence by using the sound amplifier.
And S6, sequentially determining a plurality of threshold sound intensities corresponding to a plurality of frequency points from the plurality of sound intensities according to the feedback of the tested user.
And S7, determining the target sound intensity according to the threshold sound intensities and the feedback of the tested person, and determining the hearing damage degree corresponding to the target sound intensity according to the corresponding relation between the hearing damage and the sound intensity.
Each frequency point in the multiple frequency points corresponds to the test audio frequency of the multiple sound intensity.
The threshold sound intensity is the minimum sound intensity of the audible test audio correctly fed back by the user in the hearing test, and one frequency point corresponds to one threshold sound intensity.
Generate even sound field through the public address equipment in test area 2 to carrying out the sound field calibration to public address system and can guaranteeing that test environment satisfies the hearing and detect the requirement, then use the test audio frequency of a plurality of sound intensity on the public address equipment broadcast a plurality of frequency points in proper order again and detect the personnel hearing damage degree of being surveyed, can solve the present earphone that uses earphone to detect the hearing existence and to the extrusion sense of ear, and some users produce physiological tinnitus after wearing the earphone and then disturb its problem to the perception of test audio frequency.
In a further embodiment, because the problem that the occupied area is too large when the sound amplifying equipment is used for detection, if the sound amplifying equipment is used for simultaneously detecting a set of sound amplifying system like the traditional equipment, the resource is wasted, and if the sound amplifying equipment is used for detecting once, the detection time is too long.
To solve the above problem, S8. at least two persons under test participate in the detection of hearing impairment in the test area 2.
The hearing impairment detection is carried out on at least two detected persons at one time, so that the utilization rate of the sound amplification system is improved, and the problems of resource waste and overlong detection time are solved.
In a further embodiment, there is a problem that interference factors such as abnormal movement sound of the tested person in the test area 2 increase when hearing damage detection is performed on a plurality of tested persons at the same time, and there are problems that actual propagation of the test audio and perception of the tested person to the test audio are interfered due to external environment noise interference, abnormal movement sound of the tested person in the test area 2, and influences of temperature, humidity and air pressure in the test area 2.
In order to solve the above problem, the sound reinforcement system further includes: and the signal acquisition device 4 is electrically connected with the controller 1.
And the at least two receiving devices 5 are arranged in the test area 2, are electrically connected with the signal acquisition device 4 and are used for receiving the audio information in the test area 2 in real time.
And the visual equipment is electrically connected with the signal acquisition device 4, is arranged in the test area 2 and is used for monitoring the actions of the tested personnel in the test area 2.
And the temperature detection equipment electrically connected with the signal acquisition device 4 is arranged in the test area 2 and used for detecting temperature data in the test area 2.
And the humidity detection equipment electrically connected with the signal acquisition device 4 is arranged in the test area 2 and used for detecting humidity data in the test area 2.
And the air pressure detection device is electrically connected with the signal acquisition device 4, is arranged in the test area 2 and is used for detecting air pressure data in the test area 2.
In a further embodiment, the size of the existing common room has an acoustic defect, and if the length-width-height ratio does not meet the specification of the standard, a low-frequency standing wave mode is generated, so that the test and the detection are influenced. Meanwhile, because the common room does not meet the acoustic design, the problems of echo and sound leakage exist when sound equipment such as the sound amplifier 3 and the like are used, so that the sound field is unstable, and the detection precision is influenced. Because the frequency of hearing detection is low, hearing detection is generally organized by hearing-impaired organization in a unified way within a preset date, and the problems of overlarge engineering quantity and low room utilization rate exist when reconstruction is carried out on the basis of the existing common room.
In order to solve the above problem, the sound reinforcement system further includes: a hearing test room 7, an array of distributed enclosures or speakers 3, and a test area 2 are disposed within the hearing test room 7.
The hearing test room 7 includes: a number of removably attached acoustic diffusion modules 73 and acoustic absorption modules 72.
The acoustic diffusion module 73 is a one-dimensional secondary residual sequence diffuser made of a hard panel, and one surface of the acoustic diffusion module 73 is provided with an acoustic concave-convex surface, so that acoustic energy changes a propagation angle between the concave and convex surfaces to achieve a diffusion effect.
The acoustic absorption module 72 is a cloth fiber acoustic board, one surface of the acoustic absorption module 72 is provided with a prefabricated cavity, strong acoustic absorption processing within a test frequency band range is achieved, and the depth of the prefabricated cavity ranges from 50mm to 100 mm.
Wherein, the hearing detection room 7 can also be provided with an air conditioner and other environment adjusting devices capable of adjusting temperature, humidity and air pressure, and the environment adjusting devices are electrically connected with the temperature detection equipment, the humidity detection equipment and the air pressure detection device and used for adjusting the environmental parameters in the hearing detection room 7 within a preset range.
The environment adjusting device is installed outside the hearing detection room 7, so that the problem that the airflow generated by the environment adjusting device has somatosensory influence on the detected personnel during hearing detection, and the misjudgment is caused by the interference on the attention and subjective selection of the detected personnel is solved.
The acoustic diffusion module 73 and the acoustic absorption module 72 are main acoustic modules. The hearing test room 7 as shown in fig. 4 further comprises a bottom floor base module 71 and a corner module 74. The bottom base module 71 is a rigid plastic member having a thickness greater than that of the acoustic diffusion module 73 and the acoustic absorption module 72, minimizing the weight of the module. The corner module 74 is also a rigid plastic member. The bottom layer base module 71, the acoustic absorption module 72, the acoustic diffusion module 73 and the corner module 74 are all provided with concave-convex structures at the ends, so that the bottom layer base module 71, the acoustic absorption module 72, the acoustic diffusion module 73 and the corner module 74 are assembled in a concave-convex matching mode. After assembly, the hearing test room 7 surrounded by the bottom base module 71, the acoustic absorption module 72, the acoustic diffusion module 73 and the corner module 74 has a rectangular structure as shown in fig. 2, so that the assembly steps are greatly simplified.
Because the hearing test room 7 of the embodiment can test the hearing of a plurality of people at one time, and the hearing test room 7 is made of low-weight materials such as hard panels and cloth fiber sound-absorbing boards, the hearing test room 7 of the embodiment can be constructed with three surfaces, and after people waiting for testing all enter the test area 2, the fourth surface is constructed to ensure the best acoustic performance.
In a further embodiment, when too many people need hearing test, the hearing test room 7 needs to be built up and down to let the tested person enter the test area 2, which is inefficient.
In order to solve the above problem, a predetermined through cavity is formed in a group of bottom layer base module 71, acoustic absorption module 72 and acoustic diffusion module 73 of the hearing test room 7, a movable door is installed in the predetermined through cavity, the movable door is rotatably connected with the group of bottom layer base module 71, acoustic absorption module 72 and acoustic diffusion module 73, and the movable door is made of a fabric fiber acoustic board.
In a further embodiment, the aspect ratio of the outer dimensions of the hearing test rooms 7 is between 6/5 and 3/2, preferably 9/7, and the outer dimensions of a particular hearing test room 7 are 5.4m 4.2m, i.e. the hearing test room 7 is arranged in a space with an inner dimension of 5.4m 4.2m or more.
Can be quick through dismantling the acoustics diffusion module of connection and acoustics absorption module and piece up a good hearing test room of acoustic performance, the size of having solved current ordinary room and the acoustics defect that material itself exists, can also demolish acoustics diffusion module and acoustics absorption module and accomodate when not carrying out the hearing and detect moreover, use ordinary room as its way, it is big to have solved the reconstruction engineering volume to and the problem that room utilization rate is low. Environmental parameters in the hearing detection room 7 are adjusted within a preset range through the environment adjusting device, so that objective data can be kept consistent during hearing detection, and the hearing detection precision is improved.
In this embodiment, S9, the receiving device 5 is used to receive the audio information in the test area 2 in real time, detect the parameter difference between the actual test audio in the test area 2 and the test audio played by the sound reinforcement device, and determine whether the test result is valid according to the action, temperature data, humidity data, and air pressure data of the person to be tested, and if the test result is determined to be invalid, re-detect the test result.
When temperature data, humidity data and atmospheric pressure data are not conform to the effective detection range, the accuracy of retesting is guaranteed through environmental temperature, humidity and atmospheric pressure in environment adjusting device adjustment test area 2.
And S10, if the test result is judged to be valid, taking the actual frequency point and the actual sound intensity of the actually tested audio frequency as the target sound intensity, and determining the hearing damage degree corresponding to the target sound intensity according to the corresponding relation between the hearing damage and the sound intensity.
Whether this test result is effective is judged through receiving equipment 5, visual equipment, temperature check out test set, humidity check out test set and atmospheric pressure detection device detection actual test audio frequency, surveyed personnel's action, temperature data, humidity data and atmospheric pressure data to with the actual frequency point and the actual sound intensity of actual test audio frequency as target sound intensity, can the analysis interference factor, avoid leading to detecting inaccurate problem because of the interference.
In a further embodiment, existing hearing detection equipment with a plurality of speakers playing test audio simultaneously can only detect the hearing of two ears simultaneously, and cannot accurately judge the hearing damage degree of one ear. If a single-ear test is carried out by using one sound amplification device for a long time, when the hearing damage degree of the tested ear is greater than that of the undetected ear, the tested person easily and subjectively puts attention on the undetected ear and neglects the test audio heard by the tested ear, so that the problem of inaccurate test result is caused.
In order to solve the above problem, the test audio playing method further includes: and S11, when single ear detection is carried out, the controller 1 of the sound amplifying system controls a plurality of loudspeakers to randomly play test audio for randomly testing two ears of a tested person.
S12, the random test method comprises the steps that the controller 1 of the sound amplifying system numbers the sound amplifying equipment 3 to generate a no-repeated number group, the controller 1 controls a plurality of loudspeakers 3 to output detection audio with preset frequency points and strength according to the number group, and hearing detection of the detection audio with the preset frequency points and strength on the left ear and the right ear is completed under random conditions.
The controller 1 randomly outputs the detected audio to different playing modules, so that the regularity of single-ear playing can be broken, a user can be more concentrated on hearing detection, and the problem that in the prior art, the tested person subjectively puts attention on the undetected ear and neglects the tested audio heard by the detected ear, and the test result is inaccurate is solved.
In this embodiment, the method for testing audio playback further includes: s13, the test is performed with the test audio intensity lowered or increased, and the number group is reset and the test audio is output.
S14, when the audio storage module outputs the detection audio with preset frequency point and strength to the corresponding sound track or playing direction of the playing module according to the number group, the audio storage module randomly adjusts the output time interval of two adjacent detection audio or randomly adjusts the playing time length of the detection audio.
By renumbering and randomly adjusting the output time interval of two adjacent detection audios on the basis of binaural cross random detection or randomly adjusting the playing duration of the detection audios, the problem that the test result is inaccurate due to misleading of the regularity of the detected audio playing of the detected user to carry out misjudgment can be further solved.
In a further embodiment, the detection results of the existing button feedback module and the gesture feedback mode can be obtained only after the tested person thinks, and the problem of inaccurate detection results caused by overlarge subjective judgment factors exists.
In order to solve the above problem, the test audio playing method further includes: the eyeball capturing device 9 is electrically connected with the controller 1, the test area 2 is within the detection range of the eyeball capturing device 9, the eyeball capturing device 9 is used for detecting the eyeball displacement direction and distance of the person to be detected in the test area 2, and the eyeball capturing device 9 can be a special device or can be realized by arranging eyeball capturing software or an algorithm in a vision device.
And the display device 8 is electrically connected with the controller 1 and is used for displaying the solid background and the color warning area to focus the visual attention of the tested person in a preset range of the color warning area, for example, a red ring or disc is displayed on a white background color, and the reduced ring or disc is gradually displayed until the diameter of the ring or disc is reduced to a preset value.
S15, before the detection audio is played, the display unit displays a solid background and a color warning area, and the color warning area is used for enabling the visual attention of the person to be detected to be concentrated in a preset range of the color warning area.
And S16, when the eyeball capturing device 9 detects that the visual attention of the tested person is focused in the preset range of the color warning area within the preset time, playing the detection audio.
And S17, when the detection audio is played, the display unit is closed or only displays a pure background, so that the interference of the color warning area on the eyeball moving direction of the detected person is avoided.
S18, the eyeball-capturing device 9 detects the eyeball-displacement direction and distance, and uploads the detected data to the information processing module, and the controller 1 compares the detected audio with the eyeball data accordingly.
S19, when the detection audio is not played or the detection audio is played within the predetermined number of times, the controller 1 sets a detection area according to the eyeball displacement distance detected by the eyeball-capturing device 9, and when the detection audio is played and the eyeball displacement does not exceed the detection area, it determines that the audio is missed or not heard.
Through detecting eyeball moving direction and distance, the problem that only a button feedback module is used can be solved by utilizing the natural reaction that a person turns to one side with sound to see when hearing one side of sound, the detection result is inaccurate due to overlarge subjective judgment factor, the visual attention of a person to be detected is concentrated in the preset range of a color warning area through the color warning area of a display unit, and the problem that the detection is inaccurate when the person rotates to exceed the detection area of an eyeball capturing module can be avoided.
The debugging method for the sound amplification system comprises the following steps: and the signal acquisition device 4 is electrically connected with the controller 1 and the sound amplifying equipment 3.
And the signal processing module is arranged in the controller 1 and used for adjusting the playing signal of the sound amplifying device 3.
And the at least two receiving devices 5 are arranged in the test area 2, are electrically connected with the signal acquisition device 4 and are used for receiving the audio information in the test area 2 in real time.
And S20, the sound reinforcement equipment 3 plays the test audio into the test area 2, the receiving equipment 5 receives the audio information in the test area 2, the signal acquisition device 4 performs signal comparison on the played audio and the received audio, and the position of the sound reinforcement equipment 3 is adjusted or the played signal of the sound reinforcement equipment is controlled according to the signal comparison result so that the test area 2 is in a uniform and stable sound field.
S21, the controller 1 controls the sound reinforcement device 3 to realize a bright area and a dark area of the sound field in a predetermined area, wherein the bright area is an area where the concentration of radiant energy is higher than that of the dark area.
In a further embodiment, the receiving device 5 comprises: and the artificial head equipment 6 is arranged in the test area 2 and has a rotation function for simulating the rotation of the artificial head.
Microphones for picking up sound fields at multi-point positions near ears and transmitting collected data to the signal collecting device 4 are arranged on two sides of the artificial head device 6 and electrically connected with the signal collecting device 4.
And S20, simulating the rotation of the human head by using the artificial head device 6, picking up the sound field at a plurality of points near the ears by the microphone in the test area 2, and transmitting the acquired data to the signal acquisition device 4. The controller 1 and the signal acquisition device 4 calculate parameters of each sound reinforcement device 3 to be adjusted, so that the sound reinforcement device 3 generates a uniform sound field in the test area 2.
The influence of a human in a sound field is simulated through the artificial head device 6, the sound field of multiple points near two ears is picked up by using the microphone and is transmitted back to analysis equipment such as a computer and the like to calculate signals needing to be fed to each sound amplification device 3, the disturbance of the sound field caused by the rotation of the human head during actual playing is simulated during testing, the stability of the sound field can be ensured, and the testing precision is improved.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The audio playing test method based on the sound amplification system is used for detecting the hearing damage degree of a tested person;
it is characterized in that the preparation method is characterized in that,
the sound amplification system comprises: a controller, and, in addition,
the sound amplification equipment is electrically connected with the controller, and a plurality of loudspeakers form a distributed sound box or a loudspeaker array and are used for playing the test audio to the test area;
the method comprises the following steps:
s1, mounting the sound reinforcement equipment at a preset position according to the size of the test area and the data of the sound reinforcement equipment to form a distributed sound box or loudspeaker array;
s2, generating a uniform sound field in the test area by using the sound amplifying system;
s3, carrying out sound field calibration on the sound reinforcement system;
and S4, after the sound amplifying system finishes sound field calibration, the tested person enters a test area to test the hearing damage degree.
2. The method for testing audio playback based on an audio amplification system of claim 1,
the method further comprises the following steps: s5, using the sound amplification equipment to play the test audio of a plurality of sound intensities on a plurality of frequency points in sequence;
s6, sequentially determining the sound intensity of a plurality of thresholds corresponding to a plurality of frequency points from the plurality of sound intensities according to the feedback of the tested user;
s7, determining a target sound intensity according to the threshold sound intensities and the feedback of the tested person, and determining the hearing damage degree corresponding to the target sound intensity according to the corresponding relation between the hearing damage and the sound intensity;
each frequency point in the multiple frequency points corresponds to the test audio frequency of the multiple sound intensities;
the threshold sound intensity is the minimum sound intensity of the audible test audio correctly fed back by the user in the hearing test, and one frequency point corresponds to one threshold sound intensity.
3. The method for testing audio playback based on an audio amplification system of claim 2,
the method further comprises the following steps:
s8, at least two tested persons participate in the detection of hearing impairment in the test area.
4. The method for testing audio playback based on an audio amplification system of claim 2,
the sound amplification system further comprises:
the signal acquisition device is electrically connected with the controller;
the at least two receiving devices are arranged in the test area, are electrically connected with the signal acquisition device and are used for receiving the audio information in the test area in real time;
the vision equipment is arranged in the test area, is electrically connected with the signal acquisition device and is used for monitoring the actions of the tested personnel in the test area;
the temperature detection equipment is arranged in the test area, is electrically connected with the signal acquisition device and is used for detecting temperature data in the test area;
the humidity detection equipment is arranged in the test area, is electrically connected with the signal acquisition device and is used for detecting humidity data in the test area;
and the air pressure detection device is arranged in the test area, is electrically connected with the signal acquisition device and is used for detecting air pressure data in the test area.
5. The method for testing audio playback based on an audio amplification system of claim 1,
the sound amplification system further comprises: the hearing test room, the distributed sound box or the loudspeaker array and the test area are arranged in the hearing test room;
the hearing test room comprises: the acoustic diffusion module and the acoustic absorption module are detachably connected;
the acoustic diffusion module is a one-dimensional secondary residual sequence diffuser made of a hard panel;
the acoustic absorption module is a cloth fiber acoustic board.
6. The method for testing audio playback based on an audio amplification system as claimed in claim 4,
the method further comprises the following steps:
s9, receiving audio information in the test area in real time by using receiving equipment, detecting parameter difference between actual test audio in the test area and test audio played by the sound amplifying equipment, judging whether the test result is valid according to the action, temperature data, humidity data and air pressure data of the tested person, and if the test result is judged to be invalid, re-detecting;
and S10, if the test result is judged to be valid, taking the actual frequency point and the actual sound intensity of the actually tested audio frequency as the target sound intensity, and determining the hearing damage degree corresponding to the target sound intensity according to the corresponding relation between the hearing damage and the sound intensity.
7. The method for testing audio playback based on an audio amplification system of claim 1,
the method further comprises the following steps:
s11, when single ear detection is carried out, the controller of the sound amplifying system controls a plurality of loudspeakers to randomly play test audio for randomly testing two ears of a person to be tested;
s12, the random test method comprises the steps that a controller of the sound amplifying system numbers sound amplifying equipment to generate a no-repeat number group, the controller controls a plurality of loudspeakers to output detection audio with preset frequency points and strength according to the number group, and hearing detection of the detection audio with the preset frequency points and strength on left and right ears is completed under random conditions.
8. The method for testing audio playback based on an audio amplification system of claim 1,
the method further comprises the following steps:
s13, resetting the number group when the detection audio intensity is reduced or increased for testing, and then outputting the detection audio;
s14, when the audio storage module outputs the detection audio with preset frequency point and strength to the corresponding sound track or playing direction of the playing module according to the number group, the audio storage module randomly adjusts the output time interval of two adjacent detection audio or randomly adjusts the playing time length of the detection audio.
9. The method for testing audio playback based on an audio amplification system of claim 1,
the sound amplification system further comprises:
the eyeball capturing device is electrically connected with the controller, the test area is within the detection range of the eyeball capturing device, and the eyeball capturing device is used for detecting the eyeball displacement direction and distance of a person to be tested in the test area;
the display equipment is electrically connected with the controller and is used for displaying the pure color background and the color warning area to concentrate the visual attention of the tested person in the preset range of the color warning area;
the method further comprises the following steps:
s15, before the detection audio is played, the display unit displays a pure color background and a color warning area, and the color warning area is used to make the visual attention of the person to be detected concentrated in the preset range of the color warning area;
s16, when the eyeball capture equipment detects that the visual attention of the detected person is concentrated in the preset range of the color warning area within the preset time, playing detection audio;
s17, when the detection audio is played, the display unit is closed or only displays a pure background, so that the interference of the eyeball moving direction of the detected person by the color warning area is avoided;
s18, detecting eyeball displacement direction and distance by the eyeball capturing equipment, uploading the detection data to the information processing module, and correspondingly comparing the detection audio with the eyeball data by the controller;
and S19, when the detection audio is not played or the playing detection audio is within the preset times, the controller sets a detection area according to the eyeball displacement distance detected by the eyeball capture equipment, and when the detection audio is played for detection and the eyeball displacement does not exceed the detection area, the controller judges that the audio is wrong or not heard.
10. A debugging method for a public address system, comprising: the signal acquisition device is electrically connected with the controller and the sound amplifying equipment;
the signal processing module is arranged in the controller and used for adjusting the playing signal of the sound amplifying equipment;
the at least two receiving devices are arranged in the test area, are electrically connected with the signal acquisition device and are used for receiving the audio information in the test area in real time;
s20, the sound amplifying equipment plays a test audio frequency to the test area, the receiving equipment receives audio frequency information in the test area, the signal acquisition device carries out signal comparison on the played audio frequency and the received audio frequency, and the position of the sound amplifying equipment is adjusted or the playing signal of the sound amplifying equipment is controlled according to the signal comparison result so that the test area is in a uniform and stable sound field;
s21, the controller controls the sound reinforcement device to realize a bright area and a dark area of the sound field within the predetermined area, wherein the bright area is an area where the radiant energy concentration is higher than the dark area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110454816.1A CN113347547B (en) | 2021-04-26 | 2021-04-26 | Test audio playing method based on sound amplification system and debugging method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110454816.1A CN113347547B (en) | 2021-04-26 | 2021-04-26 | Test audio playing method based on sound amplification system and debugging method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113347547A true CN113347547A (en) | 2021-09-03 |
| CN113347547B CN113347547B (en) | 2022-06-28 |
Family
ID=77468678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110454816.1A Active CN113347547B (en) | 2021-04-26 | 2021-04-26 | Test audio playing method based on sound amplification system and debugging method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113347547B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106999036A (en) * | 2014-11-27 | 2017-08-01 | 皇家飞利浦有限公司 | System and method for assessing visual acuity and hearing ability |
| CN109998553A (en) * | 2019-04-29 | 2019-07-12 | 天津大学 | The method of the parametrization detection system and minimum audible angle of spatial localization of sound ability |
| US20190320946A1 (en) * | 2018-04-18 | 2019-10-24 | Matthew Bromwich | Computer-implemented dynamically-adjustable audiometer |
| CN111916203A (en) * | 2020-06-18 | 2020-11-10 | 北京百度网讯科技有限公司 | Health detection method and device, electronic equipment and storage medium |
| CN112315462A (en) * | 2020-11-02 | 2021-02-05 | 深圳镭洱晟科创有限公司 | Multifunctional hearing evaluation earphone and evaluation method thereof |
-
2021
- 2021-04-26 CN CN202110454816.1A patent/CN113347547B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106999036A (en) * | 2014-11-27 | 2017-08-01 | 皇家飞利浦有限公司 | System and method for assessing visual acuity and hearing ability |
| US20190320946A1 (en) * | 2018-04-18 | 2019-10-24 | Matthew Bromwich | Computer-implemented dynamically-adjustable audiometer |
| CN109998553A (en) * | 2019-04-29 | 2019-07-12 | 天津大学 | The method of the parametrization detection system and minimum audible angle of spatial localization of sound ability |
| CN111916203A (en) * | 2020-06-18 | 2020-11-10 | 北京百度网讯科技有限公司 | Health detection method and device, electronic equipment and storage medium |
| CN112315462A (en) * | 2020-11-02 | 2021-02-05 | 深圳镭洱晟科创有限公司 | Multifunctional hearing evaluation earphone and evaluation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113347547B (en) | 2022-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11665488B2 (en) | Auditory device assembly | |
| CN101248997B (en) | Horizontal orientation acoustic source location method | |
| CN102467906B (en) | Hearing detection method and system | |
| Kim et al. | Head movements made by listeners in experimental and real-life listening activities | |
| CN107948869A (en) | Audio-frequency processing method, device, sound system and storage medium | |
| Ackermann et al. | The Acoustical Effect of Musicians' Movements During Musical Performances | |
| Keidser et al. | Factors influencing individual variation in perceptual directional microphone benefit | |
| CN113347547B (en) | Test audio playing method based on sound amplification system and debugging method thereof | |
| CN107205204A (en) | Earphone fault detection method and examination earphone special | |
| CN209710318U (en) | A kind of automatic negative-feedback volume public address system | |
| CN203988071U (en) | Simulated environment hearing aid fitting instrument | |
| Sivonen | Directional loudness and binaural summation for wideband and reverberant sounds | |
| Cooper et al. | Subjective perception of wind turbine noise-The stereo approach | |
| McKenzie et al. | The auditory perceived aperture position of the transition between rooms | |
| CN203942647U (en) | Simulated environment hearing aid fitting instrument | |
| Chung et al. | Noise reduction technologies implemented in head-worn preprocessors for improving cochlear implant performance in reverberant noise fields | |
| Bech | Perception of reproduced sound: Audibility of individual reflections in a complete sound field | |
| Spiousas et al. | Shifts in the judgement of distance to a sound source in the presence of a sonic crystal | |
| Flemmer et al. | Wind turbine infrasound: Phenomenology and effect on people | |
| Ueda et al. | How high-frequency do children hear? | |
| US20230157585A1 (en) | Spatial Hearing Measurement System | |
| TWI498104B (en) | Hearing ability testing method and system | |
| Vigliano et al. | Realistic Environment Audiometric Booth: Development and Clinical Validation | |
| Zosuls et al. | Development of experimental facility for testing human response to ILFN from wind turbines | |
| Zurek et al. | Investigating the Utility of a Compact Loudspeaker Array for Audiometric Testing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |