CN114501288B - Noise reduction performance test system and method for noise reduction earphone - Google Patents
Noise reduction performance test system and method for noise reduction earphone Download PDFInfo
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- CN114501288B CN114501288B CN202210090741.8A CN202210090741A CN114501288B CN 114501288 B CN114501288 B CN 114501288B CN 202210090741 A CN202210090741 A CN 202210090741A CN 114501288 B CN114501288 B CN 114501288B
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- 238000011056 performance test Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000005236 sound signal Effects 0.000 claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 34
- 239000000523 sample Substances 0.000 abstract description 6
- 210000000613 ear canal Anatomy 0.000 description 20
- 239000000843 powder Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- RXKGHZCQFXXWFQ-UHFFFAOYSA-N 4-ho-mipt Chemical compound C1=CC(O)=C2C(CCN(C)C(C)C)=CNC2=C1 RXKGHZCQFXXWFQ-UHFFFAOYSA-N 0.000 description 1
- 240000005002 Erythronium dens canis Species 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
Classifications
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/01—Hearing devices using active noise cancellation
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention discloses a noise reduction performance test system and method of a noise reduction earphone, wherein the system comprises a Bluetooth earphone, a Bluetooth adapter, an electroacoustic tester, a protection sponge and an earphone to be tested, wherein the electroacoustic tester is connected with the Bluetooth adapter, the Bluetooth adapter is connected with the Bluetooth earphone in a pairing way, and the Bluetooth adapter is used for receiving an audio signal sent by the Bluetooth earphone and sending the audio signal to the electroacoustic tester for processing; the protective sponge is arranged in the auditory canal of the tester; the earphone to be tested is arranged on the auricle of the tester. Wherein, bluetooth headset sets up in protection sponge and is close to earphone one side that awaits measuring. According to the embodiment of the invention, the Bluetooth earphone is arranged in the auditory canal, and real-time noise in the auditory canal of a person is collected through the microphone of the Bluetooth earphone for analysis, so that the same earphone is actually worn by different users, or the active noise reduction and passive noise reduction performances of different earphones worn by the same user are evaluated; the low-frequency leakage caused by unsealing between the earphone and the human ear due to the probe microphone hose is avoided, and the noise reduction test result is influenced.
Description
Technical Field
The invention relates to the technical field of earphones, in particular to a noise reduction performance testing system and method for a noise reduction earphone.
Background
The noise reduction performance of the current noise reduction earphone is tested by HATS or simulated artificial auricles and artificial ears in a laboratory, but due to the difference of the shapes of ears and auditory canals of different people and the difference of the shapes and sizes of heads of people, the noise reduction data of a plurality of earphones tested in the laboratory are good, but the noise reduction effect felt by different people actually wearing the earphone is different from person to person. The current evaluation of the noise reduction performance of actually wearing the noise reduction earphone by different users is that a probe microphone is inserted into the auditory canal of a person and then the earphone is worn. And closing the ANC by the earphone, playing the powder noise by the sound box, and recording the noise signal acquired by the test microphone as B. The earphone starts ANC, the sound box plays the powder noise, the noise signal collected by the test microphone is recorded as C, and the active noise reduction performance of the earphone is = C-B.
Currently, a probe microphone is used for testing, and due to the existence of a hose, the tightness between the earphone and the human ear is poor, and particularly, the passive noise reduction performance of the TWS earphone is seriously deviated from a design value, and the active noise reduction performance of the ANC is also affected. Moreover, repeated tests using the hose have the phenomenon of poor consistency, and the passive and active noise reduction performances of the noise reduction earphone actually worn on the human ear cannot be truly reflected.
Disclosure of Invention
The invention aims to provide a noise reduction performance test system and method for a noise reduction earphone, and aims to solve the problem that in the prior art, the noise reduction effect of the earphone tested on a real human ear is inaccurate.
In a first aspect, an embodiment of the present invention provides a noise reduction performance test system for a noise reduction earphone, including:
the Bluetooth earphone is arranged in the auditory canal of the tester;
a Bluetooth adapter;
the electroacoustic tester is connected with the Bluetooth adapter, the Bluetooth adapter is connected with the Bluetooth earphone in a pairing mode, the Bluetooth adapter is used for transmitting audio signals between the Bluetooth earphone and the electroacoustic tester, and the signals are processed by the electroacoustic tester;
the protective sponge is arranged in the auditory canal of the tester;
and the earphone to be tested is arranged on the ear of the tester.
The Bluetooth headset is arranged on one side of the protection sponge close to the headset to be tested.
In a second aspect, an embodiment of the present invention further provides a noise reduction performance testing method of a noise reduction earphone, which is applied to the noise reduction performance testing system of the noise reduction earphone, and includes:
the Bluetooth earphone is worn in an auditory canal of a tester;
connecting the electroacoustic tester with the Bluetooth adapter;
pairing and connecting the Bluetooth headset with the Bluetooth adapter;
the earphone to be tested is worn on the auricle of the tester;
opening the test earphone and collecting audio signals sent by the test earphone and external noise through the Bluetooth earphone;
transmitting the audio signal to the Bluetooth adapter through the Bluetooth headset;
the Bluetooth adapter sends the audio signal to the electroacoustic tester;
analyzing the collected audio signals through the electroacoustic tester.
According to the embodiment of the invention, the Bluetooth earphone is arranged in the auditory canal to replace the probe microphone, so that low-frequency leakage caused by the fact that the sealing between the earphone and the ear/auditory canal is not tight due to the probe microphone hose and ANC effects of the noise reduction earphone when different users wear the noise reduction earphone can not be accurately estimated are avoided, and the influence of test equipment and a test method on noise reduction test results is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a noise reduction performance test system of a noise reduction earphone according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating installation of a bluetooth headset of a noise reduction performance testing system of a noise reduction headset according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a bluetooth headset structure of a noise reduction performance testing system of a noise reduction headset according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a method for testing noise reduction performance of a noise reduction earphone according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1-2, a noise reduction performance testing system of a noise reduction earphone includes:
the Bluetooth earphone 100 is arranged in the auditory canal 200 of the tester;
a Bluetooth adapter;
the electroacoustic tester 400 is connected with the Bluetooth adapter, the Bluetooth adapter is connected with the Bluetooth earphone 100 in a pairing mode, the Bluetooth adapter is used for transmitting audio signals between the Bluetooth earphone 100 and the electroacoustic tester 400, and the signals are processed by the electroacoustic tester 400;
a protective sponge disposed in the ear canal 200 of the tester;
the earphone 300 to be tested is arranged on the auricle of the tester.
The bluetooth headset 100 is disposed on a side of the protection sponge close to the headset 300 to be tested.
In this embodiment, by setting the bluetooth headset 100 in the ear canal 200, real-time noise in the ear canal of a person is collected and analyzed through a microphone of the bluetooth headset 100, so as to evaluate the active noise reduction and passive noise reduction performances of the same headset worn by different users or different headsets worn by the same user; the low-frequency leakage caused by unsealing between the earphone and the human ear due to the probe microphone hose is avoided, the noise reduction test result is influenced, and the influence of the test equipment and the test method on the noise reduction test result is reduced.
Specifically, the protective sponge is placed in the ear canal 200 to prevent the bluetooth headset 100 from damaging the tympanic membrane, then the bluetooth headset 100 is placed in, after the headset 300 to be tested is worn, the bluetooth headset 100 is paired with the bluetooth adapter, the bluetooth headset 100 sends the collected audio signal to the bluetooth adapter through the bluetooth antenna, and the electroacoustic tester 400 processes the microphone audio signal.
The specific test steps are as follows:
the earphone is not worn, the sound box plays powder noise, and a noise signal acquired by the test microphone is recorded as A;
wearing headphones, closing ANC by the headphones, playing powder noise by the sound box, and recording noise signals acquired by the test microphone as B;
wearing headphones, starting ANC (analog to digital) with the headphones, playing the powder noise by the sound box, recording the noise signal acquired by the test microphone as C, and actively reducing noise of the headphones=B-A, actively reducing noise of the headphones=C-B, and actively+passively reducing noise of the headphones=C-A.
Referring to fig. 3, in an embodiment, the bluetooth headset 100 includes a headset housing 110, a radio microphone 130, a bluetooth antenna, a PCBA board 150, a battery 120 and a battery wire 140, the battery 120 is connected to the PCBA board 150 through the battery wire 140, the PCBA board 150 is respectively connected to the radio microphone 130 and the bluetooth antenna, the radio microphone 130, the PCBA board 150, the battery 120 and the battery wire 140 are disposed on the headset housing 110, and a microphone hole 160 is disposed on the headset housing 110 corresponding to the radio microphone 130.
In this embodiment, audio signals entering the ear canal 200 are collected by the acoustic microphone 130 and transmitted from the bluetooth antenna to a matching bluetooth adapter by the PCBA board 150.
By providing the microphone aperture 160 in the earphone housing 110, sound reception is facilitated.
In an embodiment, the sound receiving microphone 130 is disposed on the earphone housing 110 near an end of the earphone 300 to be tested.
In this embodiment, the sound pickup microphone 130 is disposed at an end of the earphone housing 110 near the earphone 300 to be tested, so that sound pickup is facilitated, and in a practical situation, the end of the bluetooth earphone 100 with the sound pickup microphone 130 may be taken out and plugged into the ear canal 200.
In one embodiment, the width of the bluetooth headset 100 is less than 10mm.
In this embodiment, since the ear canal 200 is a sensitive part of a person, and the size may be different according to the actual situation of different persons, different people need to be selected for testing during the test, so the bluetooth headset 100 needs to be adapted to the smaller people of the ear canal 200, and the width of the bluetooth headset 100 is required to be smaller than 10mm.
In one embodiment, the width of the bluetooth headset 100 is less than 7mm.
In an embodiment, two sides of the earphone housing 110 are provided with a clamping portion, and the clamping portion is used for clamping the earphone housing 110 to a side of the ear canal 200 close to the earphone 300 to be tested.
In this embodiment, by providing the clamping portion, the earphone housing 110 is clamped in the middle of the ear canal 200 or near one side of the earphone 300 to be tested, so as to prevent the bluetooth earphone 100 from moving along with the shake of the human body, affecting the sound reception, and even leading to the direction of the sound reception microphone 130 facing the inner side of the ear canal 200, which results in a great discount on the sound reception effect.
In one embodiment, the clamping portion is an annular hollow bag wrapped around the outer periphery of the earphone housing 110.
Specifically, the inner side of the annular hollow bag is connected with the earphone shell 110, and the annular hollow bag is provided with air holes for inflation and deflation.
When the Bluetooth headset is required to be used, the annular hollow bag is inflated, so that the annular hollow bag bulges to form a circle of soft cushion which can be compressed, and the soft cushion is contacted with the auditory canal 200, so that the Bluetooth headset 100 is more comfortable to wear.
When the annular hollow bag is too large to be plugged into the auditory canal 200, the air holes can be used for deflating, so that the diameter of the annular hollow bag is reduced, the adjustable size range is large, and the device is suitable for testing of different people.
In another embodiment, the clamping portion includes extension plates respectively disposed on two sides of the earphone housing 110.
In this embodiment, since the inner walls of the ear canal 200 do not completely conform to the arc shape, but are crisscrossed, the earphone shell 110 can be clamped on a certain cross section of the ear canal 200 by the extending plates extending from two sides of the earphone shell 110, and at this time, the two extending plates are respectively overlapped on the human body structures on the inner walls of two opposite sides of the ear canal 200.
In one embodiment, the extension board is provided with a folding part, and the extension board realizes a folding function through the folding part.
In this embodiment, the folding portion is disposed on the extension board, so that the length of the extension board can be controlled, and the extension board can be fixed in different positions in different crowds and in different positions in the auditory canal 200, thereby facilitating the change and setting of the influence factors in the test.
In an embodiment, the extension panel comprises a plurality of sets of composite panels, adjacent composite panels being foldably joined by the fold.
In this embodiment, through setting up folding splice between the composition board, realize the collapsible concatenation between the composition board, conveniently adjust length, be suitable for different crowd's test.
In an embodiment, the extension plate is a silica gel material.
In this embodiment, the silicone material is skin friendly and does not scratch the ear canal 200.
In an embodiment, the bluetooth headset is wrapped with a soft rubber material, such as TPU, TPE, and silica gel.
In an embodiment, a horn unit is arranged at the front end of the earphone shell 110, a circular opening is formed at the rear end of the earphone shell 110, a plurality of Z-shaped connecting blocks distributed in an annular array are connected to the inner side surface of the circular opening, a gap is formed between two adjacent Z-shaped connecting blocks, a sound tuning unit is connected to the PCBA150, the sound tuning unit is positioned in the gap, an annular adjusting ring is sleeved outside the Z-shaped connecting blocks and can move relative to the Z-shaped connecting blocks, a sealing cover is arranged in the middle of the adjusting ring, and the sealing cover is connected with the outer end part of the Z-shaped connecting blocks; and the inner side surface of the adjusting ring is provided with convex teeth matched with the tuning unit, and when the adjusting ring rotates, the convex teeth trigger the tuning unit to change the volume.
The technical scheme changes the traditional button type tuning structure into a rotary tuning structure; when adjusting volume, trigger tuning unit through rotatory adjusting ring, when the adjusting ring is rotatory, the continuous effect of dogtooth is in tuning unit to realize tuning. In the operation process, only the adjusting ring is required to be rotated, the key is not switched back, and the operation is convenient.
Further, the tuning unit includes two sets of tuning subassemblies, and the tuning subassembly includes tuning button and with tuning button matched with tuning lever, the middle part of tuning lever articulates in PCBA150 and the middle part of tuning lever is connected with reset torsion spring, and the one end of tuning lever is located one side of tuning button, and the other end of tuning lever stretches into between two protruding teeth wherein.
The technical scheme modifies the original key operation structure to change direct pressing type into rotary pressing type. The existing Bluetooth earphone generates tuning signals by pressing tuning keys on the PCBA150 through buttons on the earphone shell 110, and in the technical scheme, the tuning signals are generated by pressing the tuning keys through tuning levers through rotating the adjusting rings, wherein the convex teeth of the adjusting rings are provided with the adjusting rings; when the adjusting ring rotates clockwise during adjustment, one tuning lever continuously presses the corresponding tuning key under the stirring of the convex tooth, and the other tuning lever continuously empties under the stirring of the convex tooth. When the adjusting ring rotates anticlockwise, the other tuning lever continuously presses the other tuning key; one of the tuning levers is continuously emptied under the stirring of the convex teeth. The reset torsion spring continuously helps the tuning lever to reset in the process.
Further, the tuning unit includes two tuning buttons and tuning lever with tuning button matched with, the middle part of tuning lever articulates in PCBA150 and the middle part of tuning lever is connected with reset torsion spring, and the one end of tuning lever is located the middle part of two tuning buttons, and the other end of tuning lever stretches into between two protruding teeth wherein.
As another structure, two tuning keys are arranged between tuning levers, and when the adjusting ring rotates clockwise, the tuning levers rotate under the drive of the convex teeth and continuously press one of the tuning keys. When the adjusting ring rotates anticlockwise, the tuning lever continuously presses the other tuning key. The reset torsion spring continuously helps the tuning lever to reset in the process.
Further, tuning unit is including connecting in the gear of PCBA150, and the gear passes through pivot swing joint in PCBA150, the protruding profile of tooth of adjusting ring is internal tooth, adjusting ring and gear engagement, PCBA150 still is equipped with the sensing unit that is used for responding to adjusting ring rotation angle, and the sensing unit is connected with the pivot of gear.
The adjusting ring drives the gear to rotate when rotating, and the sensing unit senses the rotating angle of the gear when the gear rotates, so that the rotating angle of the adjusting ring is obtained; the sensing unit transmits the rotation angle information to the PCBA150, and the PCBA150 controls the sound emission size of the speaker through the information. When calculating the rotation angle, the adjusting ring can take an initial certain angle as 0 degree, and the rotation angle is as follows: n=t+k360; k is an integer, t is an actual rotation angle, and the effective rotation angle of the adjusting ring is n,0 < = n < 360; PCBA150 controls the sound production size of the horn unit through n. Therefore, the sound size can be continuously controlled, and the rotation angle of the adjusting ring is not limited; convenient to use. The maximum volume of the horn unit is T, and the volume of the horn unit in the use process is t=n×t/360.
Further, the sensing unit is an angle sensor.
The angle sensor can be used for sensing the rotation angle of the adjusting ring, and the adjusting ring is simple and convenient.
Further, the terminal surface of Z shape connecting block is connected with the apron, the medial surface of adjusting ring inwards extends there is the clamping ring, the apron middle part is equipped with a plurality of through-hole, the closing cap is equipped with a plurality of fixture block, the closing cap covers in clamping ring and apron, the fixture block passes the through-hole and with the apron joint.
Referring to fig. 4, a noise reduction performance test method of a noise reduction earphone is applied to a noise reduction performance test system of the noise reduction earphone, and includes steps S101-S108.
S101, wearing the Bluetooth headset in an ear canal of a tester;
s102, connecting the electroacoustic tester with the Bluetooth adapter;
s103, the Bluetooth headset is connected with the Bluetooth adapter in a pairing mode;
s104, wearing the earphone to be tested on the auricle of the tester;
s105, opening the test earphone and collecting audio signals sent by the test earphone and external noise through the Bluetooth earphone;
s106, sending the audio signal to the Bluetooth adapter through the Bluetooth headset;
s107, the Bluetooth adapter sends the audio signal to the electroacoustic tester;
s108, analyzing the collected audio signals through the electroacoustic tester.
In this embodiment, through wearing the earphone to be tested in real human ear, test earphone broadcast test signal (frequency sweep, powder noise, white noise) gives the bluetooth earphone in the ear canal, the sound that test earphone sent is collected through bluetooth earphone's radio microphone, the audio signal that will collect radio microphone again sends the bluetooth adapter through bluetooth antenna, electroacoustic tester analyzes the audio signal that gathers, when the sealed effect of wearing of earphone and human ear/ear canal is not good to the testers, the low frequency signal that radio microphone gathered can reduce. The test method can evaluate the wearing sealing performance of the earphone and the real human ear, and has positive effect on optimizing the ID design of the product.
In another embodiment, a speaker may be provided in the bluetooth headset, and the bluetooth headset controls the speaker to sound.
In this embodiment, wear in real people's ear through being surveyed the earphone, electroacoustic tester sends test signal (frequency sweep, powder noise, white noise) and gives the loudspeaker sound production of the bluetooth headset in the ear canal, the sound that loudspeaker sent is collected to the radio microphone through bluetooth headset, the audio signal who gathers the radio microphone sends to bluetooth adapter through bluetooth antenna again, electroacoustic tester analyzes the audio signal who gathers, when the sealed effect of wearing of earphone and people's ear/ear canal is not good to the testers, the low frequency signal that the microphone gathered can reduce. The test method can evaluate the wearing sealing performance of the earphone and the real human ear, and has positive effect on optimizing the ID design of the product.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. A noise reduction performance test system for a noise reduction earphone, comprising:
the Bluetooth earphone is arranged in the auditory canal of the tester;
a Bluetooth adapter;
the electroacoustic tester is connected with the Bluetooth adapter, the Bluetooth adapter is connected with the Bluetooth earphone in a pairing mode, the Bluetooth adapter is used for transmitting audio signals between the Bluetooth earphone and the electroacoustic tester, and the signals are processed by the electroacoustic tester;
the protective sponge is arranged in the auditory canal of the tester;
the earphone to be tested is arranged on the auricle of the tester;
the Bluetooth headset is arranged on one side of the protection sponge close to the headset to be tested.
2. The noise reduction performance test system of the noise reduction earphone according to claim 1, wherein: the Bluetooth headset comprises a headset shell, a radio microphone, a Bluetooth antenna, a PCBA, a battery and a battery wire, wherein the battery is connected with the PCBA through the battery wire, the PCBA is respectively connected with the radio microphone and the Bluetooth antenna, the radio microphone, the PCBA, the battery and the battery wire are arranged on the headset shell, and microphone holes are formed in the headset shell corresponding to the radio microphone.
3. The noise reduction performance test system of the noise reduction earphone according to claim 2, wherein: the radio microphone is arranged on the earphone shell and is close to one end part of the earphone to be tested.
4. The noise reduction performance test system of the noise reduction earphone according to claim 1, wherein: the width of bluetooth headset is less than 10mm.
5. The noise reduction performance test system of the noise reduction earphone according to claim 2, wherein: the earphone comprises an earphone shell, wherein two sides of the earphone shell are provided with clamping parts, and the clamping parts are used for clamping the earphone shell on one side of the auditory canal, which is close to the earphone to be tested.
6. The noise reduction performance test system of the noise reduction earphone according to claim 5, wherein: the clamping part comprises extension plates respectively arranged at two sides of the earphone shell.
7. The noise reduction performance test system of the noise reduction earphone according to claim 6, wherein: the extension board is provided with a folding part, and the extension board realizes a folding function through the folding part.
8. The noise reduction performance test system of the noise reduction earphone of claim 7, wherein: the extension board comprises a plurality of groups of combination boards, and adjacent combination boards can be spliced in a folding way through the folding part.
9. The noise reduction performance test system of the noise reduction earphone according to any one of claims 6 to 8, wherein: the extension plate is made of silica gel material.
10. A noise reduction performance test method of a noise reduction earphone, applied to the noise reduction performance test system of the noise reduction earphone according to claims 1-8, characterized in that:
the Bluetooth earphone is worn in an auditory canal of a tester;
connecting the electroacoustic tester with the Bluetooth adapter;
pairing and connecting the Bluetooth headset with the Bluetooth adapter;
the earphone to be tested is worn on the auricle of the tester;
opening the earphone to be tested and collecting audio signals sent by the earphone to be tested and external noise through the Bluetooth earphone;
transmitting the audio signal to the Bluetooth adapter through the Bluetooth headset;
the Bluetooth adapter sends the audio signal to the electroacoustic tester;
analyzing the collected audio signals through the electroacoustic tester.
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