CN107205204A - Earphone fault detection method and examination earphone special - Google Patents
Earphone fault detection method and examination earphone special Download PDFInfo
- Publication number
- CN107205204A CN107205204A CN201610150921.5A CN201610150921A CN107205204A CN 107205204 A CN107205204 A CN 107205204A CN 201610150921 A CN201610150921 A CN 201610150921A CN 107205204 A CN107205204 A CN 107205204A
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- China
- Prior art keywords
- loudspeaker
- microphone
- energy
- earphone
- guide tube
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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
-
- 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
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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)
- Telephone Function (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of earphone fault detection method and examination earphone special, this method includes：When loudspeaker are triggered speech play in microphone under non-recording state, the first energy is gathered on the position of microphone；According to the first energy, N number of loudspeaker energy ratio within N number of period is calculated；When N number of loudspeaker energy ratio is respectively less than first threshold, then when loudspeaker are in non-broadcast state, in the energy of station acquisition second of microphone, and according to the second energy, the M loudspeaker energy ratio within M period is calculated；Wherein, M >=2；Judge whether the difference of M loudspeaker energy ratio and preset reference value is respectively less than Second Threshold；If, it is determined that microphone breaks down；Otherwise, it determines loudspeaker break down.Test earphone loudspeaker and microphone whether can be broken down simultaneously using the embodiment of the present invention, ensure the fairness of examination.
Description
Technical field
The present invention relates to fault detection technique field, more particularly to a kind of earphone fault detection method and examination are specially
Use earphone.
Background technology
It is existing to hear that class examination be allocated to one computer of examinee and an earphone.Examinee is logged in by computer
Examination system, and speech play and voice answer are carried out by earphone, computer can be by the information of examinee and answer
Store and be uploaded on associated server and scored.In order to ensure the justice of examination, each examination need to be ensured
Earphone equal fault-free in examination process, otherwise can produce unnecessary dispute.As certain examinee examines to understand
The topic type of examination, has no sounding, complaint earphone breaks down after examination terminates in whole examination process, so that
Acquisition is resit an exam chance, can so have a strong impact on the fairness of examination.
Existing detection mode is one additional flexible piezoelectric sound-generating devices of increase at the microphone of earphone.In student
When answer is recorded, the raw tone and additional sound of student are gathered, then passes through the frequency and energy to additional sound
The detection of amount judges whether microphone damages.Although this method can be carried out to the microphone on examination earphone
Detection in real time, but additional sound can destroy the raw tone of examinee, the judge to examinee's achievement brings shadow
Ring.Even if the additional sound is removed during examination scoring, but this removing method can not be replied completely
The raw tone of examinee, it is this to say that the voice document for damaging processing was difficult as having for law angle
The evidence of power.In addition, have no in the prior art refer to how the failure of test earphone loudspeaker, if examination process
Certain side loudspeaker of middle examinee are broken down, and unnecessary influence can be caused to examinee, examination is also run counter to
Fairness.
The content of the invention
The embodiment of the present invention proposes a kind of earphone fault detection method and examination earphone special, can test earphone loudspeaker
And microphone whether break down, ensure examination fairness.
The embodiment of the present invention provides a kind of earphone fault detection method, including：
Judge whether loudspeaker are triggered speech play in the case where microphone is in non-recording state；
Continue to judge if it is not, then returning；
If so, then gathering the first energy on the position of the microphone；First energy includes：It is described
External voice energy that microphone is received and the loudspeaker for passing to the microphone by sound guide tube by the loudspeaker
Acoustic energy；The loudspeaker are connected by the sound guide tube with the microphone；
According to first energy, N number of loudspeaker energy ratio within N number of period is calculated；Wherein, N >=2；
When N number of loudspeaker energy ratio is respectively less than first threshold, then non-broadcast state is in the loudspeaker
When, in the energy of station acquisition second of the microphone；
According to second energy, the M loudspeaker energy ratio within M period is calculated；Wherein, M >=
2；
Judge whether the difference of the M loudspeaker energy ratio and preset reference value is respectively less than Second Threshold；
If, it is determined that the microphone breaks down；
Otherwise, it determines the loudspeaker break down.
Further, the earphone fault detection method also includes：When N number of loudspeaker energy ratio is not equal
During less than first threshold, it is determined that the microphone does not have failure.
Further, it is described according to first energy, calculate N number of loudspeaker energy within N number of period
Than being specially：
N number of loudspeaker energy ratio in N number of period is calculated by below equation；
αi=10log10(Φi/Φ0)；
Wherein, αiFor i-th of loudspeaker energy ratio；ФiFor first energy gathered in i-th of unit interval
Amount；Ф0For a reference value.
Further, the loudspeaker are connected by the sound guide tube with the microphone, are specially：
One end of the sound guide tube is connected to the pronunciation vibrating diaphragm of the loudspeaker, and the other end is connected to the microphone
Vibrating sensor.
Further, a reference value is that the microphone is in interval in the unit interval under quiet environment
Energy summation in 300Hz to 3400Hz.
Correspondingly, the embodiment of the present invention also provides a kind of examination earphone special, including：Loudspeaker, microphone,
Sound guide tube and controller；
Wherein, the loudspeaker are connected by the sound guide tube with the microphone；
The controller is connected with the loudspeaker, the microphone respectively；
The controller is used for the earphone fault detection method described in perform claim 1 to 4 any one of requirement.
Further, the loudspeaker are connected by the sound guide tube with the microphone, are specially：
One end of the sound guide tube is connected to the pronunciation vibrating diaphragm of the loudspeaker, and the other end is connected to the microphone
Vibrating sensor.
Further, the examination earphone special also includes：Indicator lamp；
The indicator lamp is connected with the controller, for determining the loudspeaker or the wheat in the controller
Gram wind starts when breaking down, to indicate that invigilator personnel change faulty equipment.
Further, the microphone is heart-shaped directional microphone.
Implement the embodiment of the present invention, have the advantages that：
A kind of earphone fault detection method provided in an embodiment of the present invention and examination earphone special, loudspeaker are by leading
Sound tube is connected with microphone and transmits sound, and controller is in non-recording state in microphone and loudspeaker are in and broadcast
The collection of the first energy is carried out when putting state, and N number of loudspeaker energy ratio is calculated according to the first energy meter, finally
When N number of loudspeaker energy ratio is respectively less than first threshold, controller carries out the in the case where loudspeaker are in non-broadcast state
The collection of two energy, at this moment detects whether the difference of the second energy and a reference value is less than Second Threshold, if then
Determine that microphone breaks down, otherwise, it determines loudspeaker break down.The solution of prior art is in wheat
Additional sound source is added near gram wind, original sound can be caused to damage, and the inspection of prior art not on loudspeaker
Loudspeaker are connected by survey method, the present invention by sound guide tube with microphone, play loudspeaker in non-recording slot
Sound source passes to microphone by sound guide tube, is detected while realizing loudspeaker and microphone, ensures the public affairs of examination
Levelling.In addition, the present invention reduces device, carried without adding additional sound-producing device as prior art
The high reliability of earphone.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the embodiment for the earphone fault detection method that the present invention is provided；
Fig. 2 is a kind of structural representation of the embodiment for the examination earphone special that the present invention is provided；
Fig. 3 is the structural representation of another embodiment for the examination earphone special that the present invention is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear
Chu, it is fully described by.Obviously, described embodiment is only a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
It is a kind of schematic flow sheet of the embodiment for the earphone fault detection method that the present invention is provided referring to Fig. 1,
The method comprising the steps of 101 to 109, specific as follows：
Step 101：Judge whether loudspeaker are triggered speech play when microphone is in non-recording state；If it is not,
Then return to step 101；If so, then performing step 102.
In the present embodiment, the controller in earphone defines 4 state points simultaneously, is respectively：Recording starts
Point, End of Tape point, broadcasting starting point and broadcasting end point.Wherein, recording starting point and end point are directed to
Be microphone working condition, play the working condition that starting point and end point are directed to loudspeaker.By corresponding
Starting point and end point, controller can determine that microphone is in recording state or non-recording state, and really
Determine loudspeaker and be in broadcast state or non-broadcast state.
Step 102：The first energy is gathered on the position of microphone；First energy includes：Microphone is received
External voice energy and the speaker sound energy of microphone is passed to by sound guide tube by loudspeaker；Loudspeaker pass through
Sound guide tube is connected with microphone.
In the present embodiment, loudspeaker are connected by sound guide tube with microphone, are specially：One end of sound guide tube connects
The pronunciation vibrating diaphragm of loudspeaker is connected to, the other end is connected to the vibrating sensor of microphone.Wherein, leading note here
Pipe can be, but not limited to be close to pronunciation vibrating diaphragm or vibrating sensor, can be apart from a certain distance, such as 2 millis
Rice is to 3 millimeters.
In the present embodiment, the first energy includes：External voice energy and led to by loudspeaker that microphone is received
Cross the speaker sound energy that sound guide tube passes to microphone.
Step 103：According to the first energy, N number of loudspeaker energy ratio within N number of period is calculated；Wherein,
N≥2。
In the present embodiment, step 103 is specially：Calculate N number of in N number of period by below equation
Loudspeaker energy ratio；
αi=10log10(Φi/Φ0)；
Wherein, αiFor i-th of loudspeaker energy ratio, unit is dB.ФiFor what is gathered in i-th of unit interval
First energy.Ф0On the basis of be worth, a reference value be under quiet environment, microphone is in interval in the unit interval
Energy summation in 300Hz to 3400Hz.A reference value be powered by loudspeaker after white noise, sound guide tube material,
The influence of the multiple parameters such as sound guide tube profile and microphone type, but be a preset parameter for same money earphone,
Detection acquisition is carried out via anechoic chamber before dispatching from the factory,
Step 104：Judge whether N number of loudspeaker energy ratio is respectively less than first threshold, if so, then performing step
106, otherwise, perform step 105.
In the present embodiment, N=10 is taken as explanation, if 10 loudspeaker energy in continuous 10 unit interval
Amount here presets at first threshold for 10dB, then can be concluded that loudspeaker break down than respectively less than first threshold.
Step 105：Determine that microphone does not have failure.
In the present embodiment, if N number of loudspeaker energy ratio is not to be less than first threshold entirely, wheat can be determined
Gram wind does not have failure, but not can determine that loudspeaker whether failure.For example in the case where loudspeaker break down, system will
The larger background sound of extraneous decibel plays sound to gather as loudspeaker, and at this moment, N number of loudspeaker energy ratio is not complete
Less than first threshold.The present invention can not recognize whether loudspeaker break down in this case, but and prior art
Compare, the present invention remains to recognize whether loudspeaker break down under normal circumstances, therefore, the present invention has wound
The property made and practicality.
Step 106：When loudspeaker are in non-broadcast state, in the energy of station acquisition second of microphone, and root
According to the second energy, the M loudspeaker ability ratio within M period is calculated；Wherein, M >=2.
Step 107：Judge that the difference of M loudspeaker energy ratio and preset reference value is respectively less than Second Threshold, if
It is no, then step 108 is performed, if so, then performing step 109.
In the present embodiment, Second Threshold is error amount, and the value can be entered by user according to different earphone parameters
Only need to detect M loudspeaker energy ratio is approximately equal to a reference value in row regulation, the present invention, you can illustrate this
Which breaks down for microphone or loudspeaker.
Step 108：Determine that loudspeaker break down.
Step 109：Determine that microphone breaks down.
On the other hand, referring to Fig. 2, Fig. 2 is a kind of knot of the embodiment for the examination earphone special that the present invention is provided
Structure schematic diagram.As shown in Fig. 2 the examination earphone special includes：Loudspeaker 201, microphone 203, sound guide tube
202 and controller 204.
Wherein, loudspeaker 201 are connected by sound guide tube 202 with microphone 203.Controller 204 respectively with loudspeaker
201, microphone 203 connects.Controller 204 is used to perform earphone fault detection method described above.
In the present embodiment, loudspeaker are connected by sound guide tube with microphone, are specially：One end of sound guide tube connects
The pronunciation vibrating diaphragm of loudspeaker is connected to, the other end is connected to the vibrating sensor of microphone.
As one kind citing of the present embodiment, the examination earphone special also includes：Indicator lamp.Indicator lamp and control
Device 204 processed is connected, for starting when controller 204 determines that loudspeaker 201 or microphone 203 break down,
To indicate that invigilator personnel change faulty equipment.In addition, earphone can also set communication module, pass through the mould that communicates
Block sends alert messages to the computer terminal being connected with earphone, and the alert messages can be directly in examinee computer terminal
Upper display, can also directly show on the control computer of invigilator personnel, improve invigilator personnel whole to taking an examination
The supervisory efficiency of process.
As one kind citing of the present embodiment, microphone 203 can be, but not limited to as heart-shaped directional microphone,
Realize to reduction surrounding speech signal, improve the signal to noise ratio of examinee's answer and background sound.Cardioid microphone causes
Know the sound chamber that the front and back formation of sound device is differed in size, and testing proves front sound cavity space remaining part partial volume
Ratio with back side sound cavity space remaining part partial volume is 3:1 effect is best.The test result in noise reduction darkroom indicates,
The sensitivity difference of front and back can exceed 25dB, be conducive to automatic speech recognition, eliminate background sound.
As one kind citing of the present embodiment, referring to Fig. 3, Fig. 3 is the examination earphone special that the present invention is provided
The structural representation of another embodiment.As shown in figure 3, the examination earphone special includes：Left side loudspeaker 301,
Right side loudspeaker 302, the first sound guide tube 303, the second sound guide tube 304, microphone 305 and controller 306.
The double sound guide tubes of examination earphone special setting of this citing connect the left side loudspeaker 301 and right side loudspeaker of earphone respectively
302, loudspeaker independent sounding in the left and right sides is controlled by controller, it is left side loudspeaker 301 that can further measure
Break down or right side loudspeaker 302 send failure.
Therefore, a kind of earphone fault detection method provided in an embodiment of the present invention and examination earphone special,
Loudspeaker are connected with microphone by sound guide tube and transmit sound, controller microphone be in non-recording state and
Loudspeaker carry out the collection of the first energy when being in broadcast state, and calculate N number of loudspeaker energy according to the first energy meter
Amount ratio, finally when N number of loudspeaker energy ratio is respectively less than first threshold, controller is in non-broadcasting shape in loudspeaker
The collection of the second energy is carried out under state, at this moment detects whether the difference of the second energy and a reference value is less than the second threshold
Value, if then determining that microphone breaks down, otherwise, it determines loudspeaker break down.Compared to prior art
Additional sound source is added at microphone causes original sound to damage, and the not detection method on loudspeaker,
Loudspeaker are connected by the present invention by sound guide tube with microphone, and loudspeaker are played into sound source by leading in non-recording slot
Sound tube passes to microphone, is detected while realizing loudspeaker and microphone, ensures the fairness of examination.And
The present invention reduces device without adding additional sound-producing device as prior art, and improve earphone can
By property.
One of ordinary skill in the art will appreciate that all or part of flow in above-described embodiment method is realized,
It can be by computer program to instruct the hardware of correlation to complete, described program can be stored in a calculating
In machine read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.
Wherein, described storage medium can for magnetic disc, CD, read-only memory (Read-Only Memory,
) or random access memory (Random Access Memory, RAM) etc. ROM.
Described above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, this
A little improvements and modifications are also considered as protection scope of the present invention.
Claims (9)
1. a kind of earphone fault detection method, it is characterised in that including：
Judge whether loudspeaker are triggered speech play in the case where microphone is in non-recording state；
Continue to judge if it is not, then returning；
If so, then gathering the first energy on the position of the microphone；First energy includes：It is described
External voice energy that microphone is received and the loudspeaker for passing to the microphone by sound guide tube by the loudspeaker
Acoustic energy；The loudspeaker are connected by the sound guide tube with the microphone；
According to first energy, N number of loudspeaker energy ratio within N number of period is calculated；Wherein, N >=2；
When N number of loudspeaker energy ratio is respectively less than first threshold, then non-broadcast state is in the loudspeaker
When, in the energy of station acquisition second of the microphone, and according to second energy, calculate at M
Between M loudspeaker energy ratio in section；Wherein, M >=2；
Judge whether the difference of the M loudspeaker energy ratio and preset reference value is respectively less than Second Threshold；
If, it is determined that the microphone breaks down；
Otherwise, it determines the loudspeaker break down.
2. earphone fault detection method according to claim 1, it is characterised in that also include：Work as institute
Stating N number of loudspeaker energy ratio is not when being less than first threshold entirely, it is determined that the microphone does not have failure.
3. earphone fault detection method according to claim 2, it is characterised in that described in the basis
First energy, calculates N number of loudspeaker energy ratio within N number of period, is specially：
N number of loudspeaker energy ratio in N number of period is calculated by below equation；
αi=10log10(Φi/Φ0)；
Wherein, αiFor i-th of loudspeaker energy ratio；ФiFor first energy gathered in i-th of unit interval
Amount；Ф0For a reference value.
4. earphone fault detection method according to claim 3, it is characterised in that the loudspeaker pass through
The sound guide tube is connected with the microphone, is specially：
One end of the sound guide tube is connected to the pronunciation vibrating diaphragm of the loudspeaker, and the other end is connected to the microphone
Vibrating sensor.
5. earphone fault detection method according to claim 4, it is characterised in that a reference value is
Under quiet environment, energy summation of the microphone in interval 300Hz to 3400Hz in the unit interval.
6. one kind examination earphone special, it is characterised in that including：Loudspeaker, microphone, sound guide tube and control
Device；
Wherein, the loudspeaker are connected by the sound guide tube with the microphone；
The controller is connected with the loudspeaker, the microphone respectively；
The controller is used for the earphone fault detection method described in perform claim 1 to 5 any one of requirement.
7. examination earphone special according to claim 6, it is characterised in that the loudspeaker pass through described
Sound guide tube is connected with the microphone, is specially：
One end of the sound guide tube is connected to the pronunciation vibrating diaphragm of the loudspeaker, and the other end is connected to the microphone
Vibrating sensor.
8. examination earphone special according to claim 7, it is characterised in that also include：Indicator lamp；
The indicator lamp is connected with the controller, for determining the loudspeaker or the wheat in the controller
Gram wind starts when breaking down, to indicate that invigilator personnel change faulty equipment.
9. examination earphone special according to claim 7, it is characterised in that the microphone is heart
Directional microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150921.5A CN107205204B (en) | 2016-03-16 | 2016-03-16 | Earphone fault detection method and special earphone for examination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610150921.5A CN107205204B (en) | 2016-03-16 | 2016-03-16 | Earphone fault detection method and special earphone for examination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107205204A true CN107205204A (en) | 2017-09-26 |
| CN107205204B CN107205204B (en) | 2022-09-13 |
Family
ID=59903923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610150921.5A Active CN107205204B (en) | 2016-03-16 | 2016-03-16 | Earphone fault detection method and special earphone for examination |
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| Country | Link |
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Cited By (4)
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| CN108712709A (en) * | 2018-08-15 | 2018-10-26 | 会听声学科技（北京）有限公司 | Noise cancelling headphone test device and system, its microphone trouble-shooter, system and method |
| CN109151698A (en) * | 2018-07-26 | 2019-01-04 | Oppo广东移动通信有限公司 | Microphone plug-hole detection method and Related product |
| CN109151697A (en) * | 2018-07-26 | 2019-01-04 | Oppo广东移动通信有限公司 | Microphone plug-hole detection method and Related product |
| CN110557712A (en) * | 2019-09-24 | 2019-12-10 | 广东长虹电子有限公司 | Loudspeaker fault detection device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109151698A (en) * | 2018-07-26 | 2019-01-04 | Oppo广东移动通信有限公司 | Microphone plug-hole detection method and Related product |
| CN109151697A (en) * | 2018-07-26 | 2019-01-04 | Oppo广东移动通信有限公司 | Microphone plug-hole detection method and Related product |
| WO2020019858A1 (en) * | 2018-07-26 | 2020-01-30 | Oppo广东移动通信有限公司 | Microphone hole clogging detection method and related products |
| CN109151697B (en) * | 2018-07-26 | 2020-03-27 | Oppo广东移动通信有限公司 | Microphone hole blockage detection method and related product |
| US11425519B2 (en) | 2018-07-26 | 2022-08-23 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for detecting blocking of microphone and related products |
| CN108712709A (en) * | 2018-08-15 | 2018-10-26 | 会听声学科技（北京）有限公司 | Noise cancelling headphone test device and system, its microphone trouble-shooter, system and method |
| CN110557712A (en) * | 2019-09-24 | 2019-12-10 | 广东长虹电子有限公司 | Loudspeaker fault detection device |
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|---|---|
| CN107205204B (en) | 2022-09-13 |
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