CN108712709A - Noise cancelling headphone test device and system, its microphone trouble-shooter, system and method - Google Patents
Noise cancelling headphone test device and system, its microphone trouble-shooter, system and method Download PDFInfo
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- CN108712709A CN108712709A CN201810933896.7A CN201810933896A CN108712709A CN 108712709 A CN108712709 A CN 108712709A CN 201810933896 A CN201810933896 A CN 201810933896A CN 108712709 A CN108712709 A CN 108712709A
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- cancelling headphone
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- 238000012360 testing method Methods 0.000 title claims abstract description 90
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- 230000005236 sound signal Effects 0.000 claims description 10
- 238000003745 diagnosis Methods 0.000 claims description 7
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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
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
-
- 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
Abstract
A kind of noise cancelling headphone test device of present invention proposition and system, its microphone trouble-shooter, system and method.The test device includes pedestal, riser and fixed frame；Riser and fixed frame are installed on pedestal；Fixed frame is used to support the head beam of noise cancelling headphone to be tested；Riser is used to be bonded the earphone enclosure of noise cancelling headphone to be tested.Noise cancelling headphone to be tested can be fixed using the test device, and can ensure the stability and consistency of the test data that earphone to be tested obtains during the test, and the test equipment is simple in structure, easily realizes, is of low cost.The test system that the test device is formed with data acquisition device, computing device can be laid the foundation based on the transmission function of the noise cancelling headphone acoustic characteristic data acquisition noise cancelling headphone acoustic characteristic of centralized procurement for the subsequent filter design of noise cancelling headphone.
Description
Technical field
The present invention relates to active noise reduction fields, in particular to a kind of noise cancelling headphone test device and system, its Mike
Wind trouble-shooter, system and method.
Background technology
The core technology of active noise reduction earphone (being subsequently referred to as noise cancelling headphone) is to design the excellent filtering of noise reduction
Device, which is that the acoustic characteristic based on active noise reduction earphone is designed, in order to determine that noise cancelling headphone is worn on human ear
On acoustic characteristic, it is thus necessary to determine that the main channel of noise cancelling headphone and the acoustic transfer function of secondary channel.Due to different noise reductions
The component that earphone uses is different, such as possesses the loud speaker of different impedances and carry-over factor, and per the elastic backing of money noise cancelling headphone
And the front and back operatic tunes is all different, therefore the acoustic transfer function of different noise cancelling headphones is also not quite similar.
To ensure noise reduction, need accurately to obtain acoustic transfer function when each noise cancelling headphone is worn on human ear.Mesh
Before, noise cancelling headphone carries out acoustics in research and development and production phase, by the way that noise cancelling headphone to be worn on human ear simulator or true man
Test, acoustic transfer function is obtained by test result.
Wherein, user's ear simulator, costly, when batch production, needs to buy more machines to ensure price
Production efficiency, so as to cause cost increase；If using true man, it is easy because different wearing customs causes test result to go out
Existing error, so as to lead to lose part noise reduction, while the long-term hearing impairment for listening noise to be easy to cause human ear.
Invention content
The present invention proposes a kind of noise cancelling headphone test device, and to solve, existing noise cancelling headphone test device is expensive, surveys
The problem that test result deviation is big and consistency is poor.
Noise cancelling headphone test device proposed by the present invention includes：Pedestal, riser and fixed frame；
The riser and the fixed frame are respectively mounted on the base；
The fixed frame is used to support the head beam of noise cancelling headphone to be tested；
The riser is used to be bonded the earphone enclosure of noise cancelling headphone to be tested.
Further, including two risers；
Two risers are arranged with respect to parallel interval on the base.
Further, two risers are symmetrical arranged about the fixed frame.
Further, the riser and the fixed frame are detachably mounted on the pedestal.
Further, the area of the riser is covered in the face on the riser more than the earphone enclosure of noise cancelling headphone to be tested
Product.
Further, the fixed frame is decussate texture；
Side horizontal extension setpoint distance where the top of the fixed frame towards the riser.
Noise cancelling headphone test device proposed by the present invention can fix noise cancelling headphone to be tested using the test device, and
It can ensure the stability and consistency of the test data that noise cancelling headphone to be tested obtains during the test；Also, the test
Apparatus structure is simple, easily realizes, is of low cost.The test system that the test device is formed with data acquisition device and computing device
System can be noise cancelling headphone based on the transmission function of the noise cancelling headphone acoustic characteristic data acquisition noise cancelling headphone acoustic characteristic of acquisition
Subsequent filter design lays the foundation.
Another object of the present invention, which also resides in, proposes a kind of noise cancelling headphone test system, which includes sequentially connected wait for
Test noise cancelling headphone, data acquisition device and computing device, and noise cancelling headphone test device as described above；
The head beam of the noise cancelling headphone to be tested is supported on the fixed frame of the noise cancelling headphone test device；
The earphone enclosure of the noise cancelling headphone to be tested is fitted on the panel of the noise cancelling headphone test device.
The advantageous effect of noise cancelling headphone test system provided by the invention compared with the prior art, is same as provided by the invention
The advantageous effect of noise cancelling headphone test device compared with the prior art, details are not described herein again.
Another object of the present invention, which also resides in, proposes a kind of noise cancelling headphone microphone trouble-shooter, which includes the
One microphone and second microphone, and noise cancelling headphone test device as described above；
First microphone is mounted on the riser of the noise cancelling headphone test device for being bonded noise reduction ear to be tested
On the side of the earphone enclosure of machine；
The second microphone is mounted on the fixed frame of the noise cancelling headphone test device.
Further, including two first microphones and two second microphones；
The noise cancelling headphone test device includes two risers, and two risers are along the width side of the fixed frame
It is arranged in parallel to opposite；
Two first microphones are arranged correspondingly with two risers；
Two second microphones are oppositely arranged on the both sides of the fixed frame along the width direction of the fixed frame.
The advantageous effect of noise cancelling headphone microphone trouble-shooter provided by the invention compared with the prior art is same as this
The advantageous effect of the noise cancelling headphone test device provided compared with the prior art is invented, details are not described herein again.
Another object of the present invention, which also resides in, proposes a kind of noise cancelling headphone microphone fault diagnosis system, which includes waiting for
Test noise cancelling headphone, and noise cancelling headphone test device as described above；
The head beam of the noise cancelling headphone to be tested is supported on the fixed frame of the noise cancelling headphone test device；
The earphone enclosure of the noise cancelling headphone to be tested is fitted on the riser of the noise cancelling headphone test device.
The advantageous effect of noise cancelling headphone microphone fault diagnosis system provided by the invention compared with the prior art is same as this
The advantageous effect of the noise cancelling headphone test device provided compared with the prior art is invented, details are not described herein again.
Another object of the present invention, which also resides in, proposes a kind of noise cancelling headphone microphone method for diagnosing faults, is based on the noise reduction
The realization of ear microphone fault diagnosis system, including：
Obtain wheat inside the noise cancelling headphone to be tested being fixed on the noise cancelling headphone microphone trouble-shooter
First voice signal of gram wind；
Obtain the noise cancelling headphone microphone fault diagnosis dress corresponding with the noise cancelling headphone internal microphone to be tested
The second sound signal for the microphone set；
According to the threshold value of first voice signal, the second sound signal and preset voice signal, institute is determined
State whether noise cancelling headphone internal microphone to be tested breaks down.
Further, the noise cancelling headphone internal microphone includes feedforward microphone and feedback microphones.
Further, the wheat in the noise cancelling headphone measuring apparatus corresponding with the noise cancelling headphone internal microphone
Gram bellows chamber includes：The feedforward microphone corresponds to the second microphone in the noise cancelling headphone measuring apparatus, the feedback microphones
The first microphone in the corresponding noise cancelling headphone measuring apparatus.
The advantageous effect of noise cancelling headphone microphone fault method provided by the invention compared with the prior art, on the one hand, same
In the advantageous effect of noise cancelling headphone test device provided by the invention compared with the prior art, details are not described herein again；On the other hand,
The diagnostic method is simple and effective, is easy to engineering construction.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the schematic diagram of noise cancelling headphone test device provided in an embodiment of the present invention；
Fig. 2 is the first schematic diagram that noise cancelling headphone provided in an embodiment of the present invention tests system；
Fig. 3 is the second schematic diagram that noise cancelling headphone provided in an embodiment of the present invention tests system；
Fig. 4 is the schematic diagram of noise cancelling headphone microphone trouble-shooter provided in an embodiment of the present invention.
Fig. 5 is noise cancelling headphone microphone method for diagnosing faults flow chart of steps provided in an embodiment of the present invention.
Reference numeral：
1- pedestals；2- risers；3- fixed frames；The first microphones of 4-；5- second microphones；6- earphone enclosures；10- landing attempts to be measured
It makes an uproar earphone；20- noise cancelling headphone test devices；30- data acquisition devices；40- computing devices.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
For ease of understanding the present embodiment, describe in detail below to the embodiment of the present invention.
Fig. 1 is the schematic diagram of noise cancelling headphone test device provided in an embodiment of the present invention.
Shown in referring to Fig.1, noise cancelling headphone test device provided in this embodiment includes pedestal 1, riser 2, fixed frame 3, is stood
Plate 2 and fixed frame 3 are installed on pedestal 1.
Wherein, fixed frame 3 is used to support the head beam of noise cancelling headphone to be tested, to ensure that noise cancelling headphone is not downward in test
Sliding；Wherein, riser 2 is used to be bonded the earphone enclosure of noise cancelling headphone to be tested, to further fix noise cancelling headphone to be tested, and protects
It is leaked without air between the liner and riser 2 of card earphone enclosure so that acoustics of the noise cancelling headphone to be tested in entire test process
Property retention is constant.
In one embodiment, the number of riser 2 is two, and opposite parallel interval is arranged on pedestal 1.Two vertical
Plate tries the left and right earmuff of noise cancelling headphone by contact measured so that head beam generates certain tension, and then plays fixed work
With.
In one embodiment, two risers 2 are symmetrical arranged about fixed frame 3, and fixed frame 3 is placed on two risers 2
The equal position of place plan range.Since the structure of noise cancelling headphone to be tested is symmetrical structure, in order to ensure to test effect, Gu
Determine frame 3 and two risers 2 and spatially also forms a symmetrical structure.
In one embodiment, riser 2 is fixed on using removably on pedestal 1 with fixed frame 3.Noise cancelling headphone
Test equipment needs in use, riser 2 and fixed frame 3 to be mounted on to the corresponding position of pedestal 1；It does not need in use, by riser 2
It is disassembled from pedestal 1 with fixed frame 3.This dismountable mode can save the placement space of test equipment, and conveniently
It carries.
In one embodiment, 2 area of riser is covered in more than the earphone enclosure 6 of noise cancelling headphone to be tested on riser 2
Area.The design is to ensure that noise cancelling headphone to be tested is fixed on the stability of the state of the test equipment of noise cancelling headphone.It is excellent
Selection of land, earphone enclosure 6 and the center of the contact surface of riser and the center of entire riser are almost the same.
Above-mentioned noise cancelling headphone test device can fix noise cancelling headphone to be tested, and can ensure that noise cancelling headphone to be tested exists
The stability and consistency of the test data obtained in test process, and the test device is simple in structure, easily realizes, is at low cost
It is honest and clean.
In the present embodiment, fixed frame is decussate texture, the side horizontal extension where the top towards riser of fixed frame
Setpoint distance.Also, above-mentioned riser can be arranged multipair, according to the quantity of riser logarithm, can be carried out to the length on fixed frame top
Matching extends, in this way, a pair of of riser can be used for testing a noise cancelling headphone to be tested, multipair riser can be used for testing simultaneously multiple
Noise cancelling headphone to be tested, multiple noise cancelling headphones to be tested can simultaneously support on a fixed frame.
Fig. 2 is the first schematic diagram that noise cancelling headphone provided in an embodiment of the present invention tests system；
Fig. 3 is the second schematic diagram that noise cancelling headphone provided in an embodiment of the present invention tests system.
With reference to shown in Fig. 2 and Fig. 3, the noise cancelling headphone test system that the present embodiment proposes includes the drop that above-described embodiment proposes
It makes an uproar earphone test device 20, data acquisition device 30 and computing device 40.
Wherein, noise cancelling headphone 10 to be tested is supported in noise cancelling headphone test device 20, the ear of noise cancelling headphone 10 to be tested
Hood is fitted on the riser of noise cancelling headphone test device 20.
Wherein, noise cancelling headphone 10 to be tested connect 30 with data acquisition device, data acquisition device 30 and computing device 40
Connection.
Noise cancelling headphone 10 to be tested is fixed by noise cancelling headphone test device 20, and keeps landing attempt to be measured during the test
Make an uproar earphone 10 acoustic characteristic it is stable and consistent, data acquisition device 30 is by the acoustic characteristic of the noise cancelling headphone to be tested 10 of acquisition
Data transmission to computing device 40, computing device 40 is calculated and is obtained using related software according to the acoustic characteristic data of reception
The acoustic characteristic transmission function of noise cancelling headphone 10 to be tested.
Preferably, computing device 40 can be the corresponding computer for calculating acoustic characteristic transmission function software of installation.
Fig. 4 provides the schematic diagram of noise cancelling headphone microphone trouble-shooter for the embodiment of the present invention.
With reference to shown in Fig. 4, the noise cancelling headphone microphone trouble-shooter that the present embodiment proposes includes that above-described embodiment carries
Noise cancelling headphone test device 20, the first microphone 4 and the second microphone 5 gone out.
Wherein, the first microphone 4 is mounted on the contact surface for the earphone enclosure that riser 2 contacts noise cancelling headphone, second microphone 5
On fixed frame 3.
Specifically, position of first microphone 4 on riser 2 is：What noise cancelling headphone 10 to be tested was contacted with riser contacts
On face, and the region that cannot be blocked is padded in earmuff.Preferably, the first microphone can be placed in the geometric center on the outside of riser
Place.Second microphone 5 is placed on outside earmuff, and the specific location on fixed frame 3 does not have characteristic requirements.Due to noise reduction ear to be tested
Machine 10 has two earmuffs in left and right, and therefore, the first microphone 4 and second microphone 5 should be symmetrically disposed at above-mentioned noise cancelling headphone event
Hinder on diagnostic device.
The first microphone 4 and second microphone 5 of side, the first microphone wind 4 of the other side and are merely illustrated in Fig. 4
Two microphones 5 are not shown in FIG. 4, and both sides correspond to microphone and are placed on identical position, have symmetry.
Microphone trouble-shooter is of simple structure and low cost in the noise cancelling headphone that the present embodiment proposes, is suitble to big rule
Mould uses.
The another object of the present embodiment, which also resides in, proposes that a kind of noise cancelling headphone microphone fault diagnosis system, the system include
Noise cancelling headphone to be tested, and noise cancelling headphone test device as described above；The head beam of the noise cancelling headphone to be tested is supported on
On the fixed frame of the noise cancelling headphone test device；The earphone enclosure of the noise cancelling headphone to be tested is fitted in the noise cancelling headphone and surveys
On the riser that trial assembly is set.
Fig. 5 provides the step flow chart of noise cancelling headphone microphone method for diagnosing faults for the embodiment of the present invention.
With reference to the noise cancelling headphone microphone method for diagnosing faults that figure 5, the present embodiment propose, include the following steps：
S10：Obtain the noise cancelling headphone internal microphone to be tested being fixed on noise cancelling headphone microphone trouble-shooter
The first voice signal；
S20：It obtains on noise cancelling headphone microphone trouble-shooter corresponding with noise cancelling headphone internal microphone to be tested
Microphone second sound signal；
S30：According to the threshold value of the first voice signal, second sound signal and preset voice signal, determine to be tested
Whether noise cancelling headphone internal microphone breaks down.
In one embodiment, noise cancelling headphone internal microphone includes feedforward microphone and feedback microphones.
In one embodiment, feedforward microphone corresponds to the second microphone 5 in noise cancelling headphone measuring apparatus, feeds back wheat
Gram wind corresponds to the first microphone 4 in noise cancelling headphone measuring apparatus.
Specifically, it obtains and is fixed on inside the noise cancelling headphone to be tested on noise cancelling headphone microphone trouble-shooter respectively
The second sound of the first voice signal and the second microphone on noise cancelling headphone microphone trouble-shooter of feedforward microphone
Whether signal determines feedforward microphone according to the threshold value of the first voice signal, second sound signal and preset voice signal
It breaks down.By the way that the difference of the first voice signal and second sound signal and the threshold value of preset voice signal are compared
Compared with, when above-mentioned difference be more than threshold value when, then illustrate feedforward microphone break down；Conversely, then illustrating that feedforward microphone is in just
Normal state.Wherein, the threshold of preset voice signal is related with the placement location of second microphone 5, and second microphone 5 is from feedforward
Microphone is remoter, and above-mentioned threshold value is bigger.The determination of the threshold value includes the following steps：1) position for determining second microphone, at this
Second microphone is placed on position；2) noise cancelling headphone, and noise cancelling headphone are placed on noise cancelling headphone microphone trouble-shooter
Interior feedforward microphone is functional；3) it utilizes sound source to play acoustical signal, measures second microphone and feedforward microphone inspection respectively
The acoustical signal measured；4) difference of two acoustical signals in step 3) is sought；5) it repeats step 3) and step 4) calculates multiple difference
Average value, which is determined as threshold value.If the position of second microphone changes, threshold value needs to pass through the above method
It redefines.
Specifically, it obtains and is fixed on inside the noise cancelling headphone to be tested on noise cancelling headphone microphone trouble-shooter respectively
The second sound of the first voice signal and the first microphone on noise cancelling headphone microphone trouble-shooter of feedback microphones
Whether signal determines feedback microphones according to the threshold value of the first voice signal, second sound signal and preset voice signal
It breaks down.By the way that the difference of the first voice signal and second sound signal and the threshold value of preset voice signal are compared
Compared with, when above-mentioned difference be more than threshold value when, then illustrate feedback microphones break down；Conversely, then illustrating that feedback microphones are in just
Normal state.Wherein, the threshold of preset voice signal is related with the placement location of the first microphone 4, and the first microphone 4 is from feedback
Microphone is remoter, and above-mentioned threshold value is bigger.The determination of the threshold value includes the following steps：1) position for determining the first microphone, at this
The first microphone is placed on position；2) noise cancelling headphone, and noise cancelling headphone are placed on noise cancelling headphone microphone trouble-shooter
Interior feedback microphones are functional；3) it utilizes sound source to play acoustical signal, measures the first microphone 4 and feedback microphones inspection respectively
The acoustical signal measured；4) difference of two acoustical signals in step 3) is sought；5) it repeats step 3) and step 4) calculates multiple difference
Average value, which is determined as threshold value.If the position of the first microphone changes, threshold value needs to pass through the above method
It redefines.
Threshold value for detecting feedforward microphone failure and for detecting the threshold value of feedback microphones failure numerically not
Together.
The method for diagnosing faults of microphone is simple and effective in the noise cancelling headphone that the present embodiment proposes, is easy to engineering construction.
In the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " connects " connected "
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connects, and can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two members
Connection inside part.For the ordinary skill in the art, it can understand above-mentioned term in the present invention with concrete condition
Concrete meaning.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second " are only
For descriptive purposes, it is not understood to indicate or imply relative importance.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (13)
1. a kind of noise cancelling headphone test device, which is characterized in that including：Pedestal, riser and fixed frame；
The riser and the fixed frame are respectively mounted on the base；
The fixed frame is used to support the head beam of noise cancelling headphone to be tested；
The riser is used to be bonded the earphone enclosure of noise cancelling headphone to be tested.
2. noise cancelling headphone test device according to claim 1, which is characterized in that including two risers；
Two risers are arranged with respect to parallel interval on the base.
3. noise cancelling headphone test device according to claim 2, which is characterized in that two risers are about the fixation
Frame is symmetrical arranged.
4. noise cancelling headphone test device according to claim 2, which is characterized in that the riser and the fixed frame
It releasably installs on the base.
5. noise cancelling headphone test device according to claim 1, which is characterized in that the area of the riser is more than to be tested
The earphone enclosure of noise cancelling headphone is covered in the area on the riser.
6. noise cancelling headphone test device according to claim 1, which is characterized in that the fixed frame is decussate texture；
Side horizontal extension setpoint distance where the top of the fixed frame towards the riser.
7. a kind of noise cancelling headphone tests system, which is characterized in that including sequentially connected noise cancelling headphone to be tested, data acquisition dress
It sets and computing device, and such as the noise cancelling headphone test device of any one of claim 1-6；
The head beam of the noise cancelling headphone to be tested is supported on the fixed frame of the noise cancelling headphone test device；
The earphone enclosure of the noise cancelling headphone to be tested is fitted on the panel of the noise cancelling headphone test device.
8. a kind of noise cancelling headphone microphone trouble-shooter, which is characterized in that including the first microphone and second microphone, with
And the noise cancelling headphone test device as described in any one of claim 1-6；
First microphone is mounted on the riser of the noise cancelling headphone test device for being bonded noise cancelling headphone to be tested
On the side of earphone enclosure；
The second microphone is mounted on the fixed frame of the noise cancelling headphone test device.
9. noise cancelling headphone microphone trouble-shooter according to claim 8, which is characterized in that including two described
One microphone and two second microphones；
The noise cancelling headphone test device includes two risers, width direction phase of two risers along the fixed frame
To being arranged in parallel；
Two first microphones are arranged correspondingly with two risers；
Two second microphones are oppositely arranged on the both sides of the fixed frame along the width direction of the fixed frame.
10. a kind of noise cancelling headphone microphone fault diagnosis system, which is characterized in that including noise cancelling headphone to be tested, and as weighed
Profit requires the noise cancelling headphone test device described in any one of 8-9；
The head beam of the noise cancelling headphone to be tested is supported on the fixed frame of the noise cancelling headphone test device；
The earphone enclosure of the noise cancelling headphone to be tested is fitted on the riser of the noise cancelling headphone test device.
11. a kind of noise cancelling headphone microphone method for diagnosing faults is based on noise cancelling headphone microphone failure according to any one of claims 10
Realizing of the diagnosis system, which is characterized in that including：
Obtain the noise cancelling headphone internal microphone to be tested being fixed on the noise cancelling headphone microphone trouble-shooter
The first voice signal；
It obtains on the noise cancelling headphone microphone trouble-shooter corresponding with the noise cancelling headphone internal microphone to be tested
Microphone second sound signal；
According to the threshold value of first voice signal, the second sound signal and preset voice signal, waited for described in determination
Whether test noise cancelling headphone internal microphone breaks down.
12. noise cancelling headphone microphone method for diagnosing faults according to claim 11, which is characterized in that the noise cancelling headphone
Internal microphone includes feedforward microphone and feedback microphones.
13. noise cancelling headphone microphone method for diagnosing faults according to claim 12, which is characterized in that the described and drop
Microphone in the corresponding noise cancelling headphone measuring apparatus of earphone internal microphone of making an uproar includes：The feedforward microphone corresponds to institute
The second microphone in noise cancelling headphone measuring apparatus is stated, the feedback microphones correspond in the noise cancelling headphone measuring apparatus
One microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810933896.7A CN108712709A (en) | 2018-08-15 | 2018-08-15 | Noise cancelling headphone test device and system, its microphone trouble-shooter, system and method |
Applications Claiming Priority (1)
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