CN106535077A - Earphone test circuit - Google Patents
Earphone test circuit Download PDFInfo
- Publication number
- CN106535077A CN106535077A CN201611045896.0A CN201611045896A CN106535077A CN 106535077 A CN106535077 A CN 106535077A CN 201611045896 A CN201611045896 A CN 201611045896A CN 106535077 A CN106535077 A CN 106535077A
- Authority
- CN
- China
- Prior art keywords
- earphone
- test circuit
- earphone test
- control unit
- memory element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses an earphone test circuit, comprising a decoding unit, a storage unit, a 3.5 mm socket for connecting a playing device, and a USB socket for connecting a to-be-tested earphone. The storage unit is arranged for storing a digital audio signal and sending the digital audio signal to the to-be-tested earphone connected with the USB socket for playing. The decoding unit is arranged for decoding a digital speech signal sent by a microphone of the to-be-tested earphone through the USB socket, thereby obtaining an analog speech signal and sending the analog speech signal to the playing device through the 3.5 mm socket for playing. Through application of the earphone test circuit provided by the invention, the performance of a loudspeaker and the microphone of a USB interface earphone can be tested, and the cost is relatively low.
Description
Technical field
A kind of the present invention relates to technical field of circuit design, more particularly it relates to earphone test circuit.
Background technology
As band supports that the electronic equipment of USB interface earphone gradually increases, user is also more next to the demand of USB interface earphone
Bigger, existing USB interface earphone need to be tested to the mike of USB interface earphone and speaker performance before dispatching from the factory,
Particularly, test the speaker of USB interface earphone whether can normal sounding, mike whether can normal acquisition voice,
To ensure that USB interface earphone normally can be used.
Earphone can be tested by electronic equipment in the prior art, but this cause earphone test cost compared with
It is high.
The content of the invention
It is an object of the present invention to provide the new technique of a kind of test ear microphone of low cost and speaker performance
Scheme.
According to the first aspect of the invention, there is provided a kind of earphone test circuit, including decoding unit, memory element, use
USB socket in the 3.5mm sockets of connection playback equipment and for connecting earphone to be measured, the memory element are arranged to deposit
Digital audio and video signals are stored up, and the digital audio and video signals are sent to the USB socket earphone described to be measured for connecting and broadcast
Put；The decoding unit is arranged to the audio digital signals that USB socket described in the mike Jing to the earphone to be measured sends
Carry out decoding process and obtain analog voice signal, and 3.5mm sockets described in the analog voice signal Jing are sent to described broadcast
The equipment of putting is played out.
Optionally, the USB socket is Type-C sockets.
Optionally, the decoding unit have for receive the audio digital signals digital differential input and
For exporting the analog output of analog voice signal, the memory element is used for exporting the digital audio and video signals with a pair
Audio frequency difference output end, the TX+ pins and TX- pins of the Type-C sockets are corresponding with the digital differential input to be connected
Connect, the RX+ pins and RX- pins connection corresponding with the audio frequency difference output end of the Type-C sockets, the simulation output
End connection corresponding with the L channel contact and R channel contact of the 3.5mm sockets.
Optionally, the earphone test circuit also includes the first button and control unit, and first button is to described
Control unit exports the first trigger, and described control unit is arranged to control the storage according to first trigger
Unit exports the digital audio and video signals.
Optionally, the earphone test circuit also includes the second button, and second button is defeated to described control unit
Go out the second trigger, described control unit is arranged to the memory element increase institute be controlled according to second trigger
State the power of digital audio and video signals.
Optionally, the earphone test circuit also includes the 3rd button, and the 3rd button is defeated to described control unit
Go out the 3rd trigger, described control unit is arranged to the memory element reduction institute be controlled according to the 3rd trigger
State the power of digital audio and video signals.
Optionally, the decoding unit, the memory element and described control unit are provided by a singlechip chip.
Optionally, the earphone test circuit also includes power subsystem, and the power subsystem is arranged to output first
The power pins of voltage signal to the USB socket.
Optionally, the power subsystem includes battery and linear voltage regulator, and the linear voltage regulator is arranged to institute
The cell voltage for stating battery offer is converted to the first voltage signal, and by the first voltage signal output to the USB
The power pins of socket.
Optionally, the earphone test circuit also includes voltage conversion unit, and the voltage conversion unit is arranged to
The first voltage signal is converted to into second voltage signal, to power to other units.
Optionally, the voltage conversion unit is provided by linear voltage regulator.
It was found by the inventors of the present invention that in the prior art, existing carries out test by electronic equipment to earphone and causes into
This higher problem.Therefore, present invention technical assignment to be realized or technical problem to be solved are this area skills
It is that art personnel never expect or it is not expected that, therefore the present invention is a kind of new technical scheme.
One beneficial effect of the present invention is, by the earphone test circuit of the present invention, enables to the earphone and tests
The speaker of the USB interface earphone of circuit connection plays the audio signal of memory element storage so that the Mike of USB interface earphone
The voice signal of elegance collection is capable of the earphone or speaker of Jing 3.5mm sockets connection and is played out, and so, it is right to be achieved that
The test of the speaker of USB interface earphone and microphone property, and cost is relatively low.
By referring to the drawings to the present invention exemplary embodiment detailed description, the present invention further feature and its
Advantage will be made apparent from.
Description of the drawings
It is combined in the description and the accompanying drawing of the part that constitutes description shows embodiments of the invention, and even
It is used for together explaining the principle of the present invention with its explanation.
Fig. 1 is a kind of frame principle figure of the enforcement structure according to a kind of earphone test circuit of the invention；
Fig. 2 is another kind of frame principle figure for implementing structure according to a kind of earphone test circuit of the invention；
Fig. 3 is the frame principle figure of the third enforcement structure according to a kind of earphone test circuit of the invention；
Fig. 4 is a kind of circuit theory diagrams of the enforcement structure according to a kind of earphone test circuit of the invention.
Description of reference numerals：
U11：Decoding unit； U12：Coding unit；
U13：Memory element； U14：Control unit；
U1：Single-chip microcomputer； U21：Power subsystem；
U22：Voltage conversion unit； J1：3.5mm socket；
J2：USB socket； R：R channel contact；
L：L channel contact； M：Mike contact；
G：Earthing contact； VCC1：First voltage signal；
VCC2：Second voltage signal； C1、C2、C3：Trigger；
OUT1、OUT2：Analog output； IN3：Analog input end；
SW1、SW2、SW3：Button； GND：Earth terminal；
VBUS：The power pins of Type-C sockets； GND2：The grounding pin of USB socket；
J21：Type-C sockets； DR：Digital audio and video signals；
DM1、DM2：Audio digital signals； AM1：Analog voice signal；
AR1：Simulated audio signal； AM2：Analog voice signal；
RX+、RX-、TX+、TX-：The differential pin of Type-C sockets；
RX1+、RX1-：The digital differential input of decoding unit；
TX2+、TX2-：The digital differential outfan of coding unit；
TX3+、TX3-：The audio frequency difference output end of memory element；
P1.0、P1.1、P1.2、P1.3、P1.4、P1.5、P1.6、P1.7、P2.0、P2.1：
The I/O pins of single-chip microcomputer；
DVCC：The power pins of single-chip microcomputer.
Specific embodiment
Describe the various exemplary embodiments of the present invention now with reference to accompanying drawing in detail.It should be noted that：Unless had in addition
Body illustrates that the part and the positioned opposite of step, numerical expression and numerical value for otherwise illustrating in these embodiments does not limit this
The scope of invention.
It is illustrative below to the description only actually of at least one exemplary embodiment, never as to the present invention
And its application or any restriction for using.
For known to person of ordinary skill in the relevant, technology, method and apparatus may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered a part for description.
In all examples of shown here and discussion, any occurrence should be construed as merely exemplary, and not
It is as restriction.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then which need not be further discussed in subsequent accompanying drawing.
In order to solve the problems, such as to exist in prior art, to carry out testing cost to earphone by electronic equipment higher, of the invention
There is provided a kind of earphone test circuit, as shown in figure 1, connecing including decoding unit U11, memory element U13, for connecting 3.5mm
The 3.5mm sockets J1 of mouth playback equipment and USB socket J2 for connecting USB interface earphone to be measured, wherein, earphone tool to be measured
There is mike；Memory element U13 is arranged to store digital audio and video signals DR, and digital audio and video signals DR is sent to USB inserts
The earphone to be measured of seat J2 connections is played out；Decoding unit U11 is arranged to mike Jing USB socket J2 to earphone to be measured and sends out
The audio digital signals DM1 for sending carries out decoding process and obtains analog voice signal AM1, and by analog voice signal AM1 Jing 3.5mm
Socket sends to playback equipment and plays out, and wherein, audio digital signals DM1 is earphone collection to be measured；Playback equipment is for example
Can be earphone or speaker of 3.5mm interfaces etc..
So, in the test process of USB interface earphone, the plug of USB interface earphone need to be inserted the earphone test electricity
In USB socket J2 on road, by inserting the playback equipments such as the earphone or speaker of corresponding plug in 3.5mm socket J1,
The voice signal that the mike of earphone to be measured is collected can be just played, to detect the microphone property of USB interface earphone；USB
Interface headphones receive the audio signal of memory element U13 output, and play the audio signal by the speaker of earphone to be measured, just
The speaker performance of USB interface earphone can be detected, so, by the earphone test circuit of the present invention, can be to USB interface ear
Machine carries out performance test, while testing cost effectively can be reduced.
Specifically, USB socket J2 can for example be USB A type sockets, micro-USB sockets, mini-USB sockets or
It is any one in Type-C sockets, illustrates so that USB socket J2 is for Type-C sockets as an example below.
As the receiving terminal and transmitting terminal of Type-C sockets are digital differential pin, such as receiving terminal be pin RX+,
RX-, transmitting terminal are pin TX+, TX-, as such, it can be that memory element U13 is exported to the DAB of Type-C socket J21 believing
Number be digital difference signal, then, in one particular embodiment of the present invention, 3.5mm socket J1 have L channel contact L,
R channel contact R, mike contact M and earthing contact G, as shown in figure 3, memory element U13 can be used for exporting with a pair
Audio frequency difference output end TX3+, TX3- of digital audio and video signals DR；Decoding unit U11 can have for receiving digital speech letter
Digital differential input RX1+, RX1- of number DM1, and for exporting the analog output of analog voice signal AM11, AM12
OUT1, OUT2, wherein, analog output OUT1 and OUT2 can be same outfan, or different outfans, solve
Code unit U11 can be realized by codec chips, and analog voice signal can include left channel signals and right-channel signals,
Left channel signals and right-channel signals are respectively sent to analog output OUT1 and OUT2 by decoding unit U11, therefore, simulate defeated
Go out to hold OUT1 to be connected with L channel contact L, analog output OUT2 is connected with R channel contact R, and left channel signals are transmitted
To L channel contact L, right-channel signals are sent to into R channel contact R.The TX+ pins and TX- pins of Type-C socket J21 with
Digital differential input RX1+, RX1- correspondence connects, i.e. the input of the TX+ pins of Type-C sockets J21 and decoding unit U11
RX1+ connects, and the TX- pins of Type-C socket J21 are connected with the input RX1- of decoding unit U11；The RX+ of Type-C sockets
Pin and the connection corresponding with audio frequency difference output end TX3+, TX3- of RX- pins, i.e. the RX+ pins of Type-C sockets are single with storage
The outfan TX3+ connections of first U13, the RX- pins of Type-C sockets are connected with the outfan TX3- of memory element U13；Two moulds
Intend outfan OUT1, OUT2 connection corresponding with L channel contact L and R channel contact R respectively.
The present invention another specific embodiment in, 3.5mm sockets J1 can also connect 3.5mm interfaces with Mike
The earphone to be measured of wind, meanwhile, USB interface J2 can also connect the playback equipment of USB interface, then, the earphone test circuit is also
Coding unit U12 can be included, as shown in Fig. 2 memory element U13 is arranged to for digital audio and video signals DR to send single to decoding
First U11；Decoding unit U11 is arranged to the digital audio and video signals DR for receiving is carried out decoding process and obtains simulated audio signal
AR2, and the earphone to be measured that simulated audio signal AR2 is sent to the connection of 3.5mm sockets is played out；Coding unit U12 quilts
It is set to receive the analog voice signal AM2 that the mike Jing 3.5mm sockets of earphone to be measured send, and to the analog voice signal
AM2 carries out coded treatment and obtains audio digital signals DM2, then audio digital signals DM2 Jing USB socket J2 is sent to broadcasting
Equipment is played out, and wherein, analog voice signal AM2 is the mike collection of earphone to be measured；Playback equipment can for example be
Earphone or speaker of USB interface etc..
So, the earphone test circuit just can simultaneously to 3.5mm interface headphones and USB interface earphone mike and raise
Sound device carries out performance test.In the test process of 3.5mm interface headphones, the insertion of the plug of 3.5mm interface headphones need to be somebody's turn to do
In the 3.5mm socket J1 of earphone test circuit, by inserting the earphone or speaker of corresponding plug in USB socket J2,
The voice signal that the mike of 3.5mm interface headphones is collected can be just played, to detect the mike of 3.5mm interface headphones
Energy；The decoded unit U11 of digital audio and video signals of memory element U13 output is converted to the left channel audio signal and right sound of simulation
After audio channel signal, left channel audio signal is exported to L channel contact L, right channel audio signal is exported to R channel and is touched
Point R, the speaker of 3.5mm interface headphones can just play the audio signal, and then detect the speaker of 3.5mm interface headphones
Can, so, performance test is carried out to earphone by the earphone test circuit in the present embodiment, it is possible to enrich the earphone test electricity
The test scene on road, reduces testing cost.
Further, as shown in figure 3, coding unit U12 has the analog input end for being input into analog voice signal AM2
IN2 and for exporting audio digital signals DM1, DM2 digital differential outfan TX2+, TX2-, audio frequency difference output end TX3+,
TX3- connections corresponding with digital differential input RX1+, RX1-, i.e. the outfan TX3+ and decoding unit U11 of memory element U13
Input RX1+ connections, the input RX1- of the outfan TX3- and decoding unit U11 of memory element U13 is connected；3.5mm insert
The mike contact M of seat is connected with analog input end IN2, the RX of digital differential outfan TX2+, TX2- and Type-C socket J21
The connection corresponding with RX- pins of+pin, i.e., the outfan TX2+ of coding unit U12 is connected with the RX+ pins of Type-C socket J21,
The RX- pins of the outfan TX2- and Type-C socket J21 of coding unit U12 are connected；Coding unit U12 is arranged to Jing moulds
The analogue signal for intending input IN2 receptions is converted to digital difference signal, and the digital difference signal is transmitted to corresponding number
Word difference output end TX2+, TX2-.
As shown in figure 3, the earphone test circuit can also include the first button SW1 and control unit U14, the first button
SW1 exports the first trigger C1 to control unit U14, and control unit U14 is arranged to be controlled according to the first trigger C1
Memory element U13 exports digital audio and video signals, and wherein, first trigger C1 can for example be low level pulse, in storage
In the case that unit U13 does not export digital audio and video signals DR, if control unit U14 receives first trigger C1, will
Control memory element U13 output digital audio and video signals, now, USB socket J2 connection USB interface earphone to be measured or
The 3.5mm interfaces earphone to be measured of 3.5mm sockets J1 connections will play the audio signal；DAB is exported in memory element U13
In the case of signal, if control unit U14 receives first trigger C1, control memory element U13 is stopped into output
Digital audio and video signals, stop testing the speaker of earphone to be measured.
Further, the earphone test circuit can also include the second button SW2, and the second button SW2 is to control unit U14
The second trigger C2 is exported, and control unit U14 is arranged to memory element U13 increase number be controlled according to the second trigger C2
The power of word audio signal, wherein, second trigger C2 can for example be low level pulse, export in memory element U13
In the case of digital audio and video signals, if control unit U14 receives second trigger C2, will control memory element U13
The power of the digital audio and video signals of increase output, specifically, digital audio and video signals power for example can the form in arithmetic progression
Increase.
On this basis, as shown in figure 3, the earphone test circuit can also include the 3rd button SW3, the 3rd button SW3
The 3rd trigger C3 is exported to control unit U14, control unit U14 is arranged to store according to the control of the 3rd trigger C3
Unit U13 reduces the power of digital audio and video signals, and wherein, the 3rd trigger C3 can for example be low level pulse, deposit
In the case of storage unit U13 output digital audio and video signals, if control unit U14 receives the 3rd trigger C3, will control
Memory element U13 processed reduces the power of the digital audio and video signals of output, specifically, digital audio and video signals power can for example be in etc.
The form of difference series is reduced.
In one particular embodiment of the present invention, above-mentioned decoding unit U11, coding unit U12, memory element U13 and
Control unit U14 is provided by a single-chip microcomputer U1, and the model of single-chip microcomputer U1 can for example be MSp430G2553, as shown in figure 4,
Can for example be, but not limited to, I/O pins P1.3, P1.4, P1.5, P1.6 of single-chip microcomputer respectively with Type-C socket J21's
Differential pin RX-, RX+, TX-, TX+ correspondence connect, and I/O pins P1.7, P2.0, P2.1 of single-chip microcomputer are inserted with 3.5mm respectively
The connection corresponding with L channel contact L of the mike contact M of seat J1, R channel contact R, now, the outfan of memory element U13
The outfan TX2+ of TX3+ and coding unit U12 is by the pin RX+ of the pin P1.4 and Type-C socket J21 of single-chip microcomputer U1
Connection；The outfan TX2- of the outfan TX3- and coding unit U12 of memory element U13 is by the pin P1.3 of single-chip microcomputer U1
It is connected with the pin RX- of Type-C socket J21；Pin P1.5 and solution of the pin TX+ of Type-C socket J21 by single-chip microcomputer U1
The outfan RX1+ connections of code unit U11；Pin P1.6 and decoding of the pin TX- of Type-C socket J21 by single-chip microcomputer U1
The outfan RX1- connections of unit U11；The pin P2.1 of the analog output OUT1 Jing single-chip microcomputer U1 of decoding unit U11 with
The L channel contact L connections of 3.5mm socket J1；The pin P2.0 of the analog output OUT2 Jing single-chip microcomputer U1 of decoding unit U11
It is connected with the R channel contact R of 3.5mm socket J1；The pin P1.7 of the mike contact M Jing single-chip microcomputer U1 of 3.5mm socket J1 with
The analog input end IN2 connections of coding unit U12.Button SW1 can also be for example connected to the I/O pin P1.0 of single-chip microcomputer U1
Between earth terminal GND, button SW2 is connected between the I/O pins P1.1 of single-chip microcomputer U1 and earth terminal GND, button SW2 connections
Between the I/O pins P1.2 and earth terminal GND of single-chip microcomputer U1, so, when arbitrary button is pressed, can all produce one it is low
The pulse triggering signal of level, such as in single-chip microcomputer U1 when digital audio and video signals are not exported, if I/O pin P1.0 are detected
One low level pulse, then export digital audio and video signals to corresponding differential pins RX+, RX- of Type-C socket J21；In monolithic
During machine U1 output digital audio and video signals, if I/O pin P1.1 detect a low level pulse, increase output DAB
The power of signal.The earthing contact G of grounding pin GND2,3.5mm socket J1 of Type-C socket J21, the ground connection of single-chip microcomputer U1
Pin is connected with earth terminal GND.Here, illustrate only the pin used in the present embodiment in Fig. 4.
In one particular embodiment of the present invention, the earphone test circuit also includes power subsystem U21, power subsystem
U21 is arranged to export power pins VBUS of first voltage signal VCC1 to Type-C socket J21, wherein, power subsystem U21
Battery can be included, such as in the case where the supply voltage of Type-C interface headphones is 5V, if the supply voltage of battery is big
In 5V be, for example, 12V, then in voltage cell U21 also including one can by 12V voltage conversions for 5V voltages linear voltage regulator；
Can also be power subsystem U21 can by output voltage for the battery of 5V or connect electricity USB data line provide.
Further, in order to reduce the power consumption of the earphone test circuit, the supply voltage of single-chip microcomputer U1 is typically smaller than 5V, example
Can such as be 1.8V-3.3V, then, the earphone test circuit also includes voltage conversion unit U22, voltage conversion unit U22 quilts
Be set to for first voltage signal VCC1 to be converted to second voltage signal VCC2, to supply to decoding unit U11 and memory element U13
Electricity, specifically, as shown in figure 4, the second voltage signal VCC2 of voltage conversion unit U22 outputs is sent to the power supply of single-chip microcomputer U1
Pin DVCC.Wherein, voltage conversion unit U22 can for example be linear voltage regulator, and its model can for example be LM1117.
The various embodiments described above primary focus describe the difference with other embodiment, but those skilled in the art should be clear
Chu, the various embodiments described above can be used alone as needed or be combined with each other.
Although being described in detail to some specific embodiments of the present invention by example, the skill of this area
Art personnel it should be understood that example above is merely to illustrate, rather than in order to limit the scope of the present invention.The skill of this area
Art personnel are it should be understood that can modify to above example without departing from the scope and spirit of the present invention.This
Bright scope is defined by the following claims.
Claims (10)
1. a kind of earphone test circuit, it is characterised in that broadcast including decoding unit (U11), memory element (U13), for connection
Put the 3.5mm sockets (J1) of equipment, and for connecting the USB socket (J2) of earphone to be measured, memory element (U13) is set
For storing digital audio and video signals (DR), and the digital audio and video signals (DR) are sent to the USB socket (J2) institute for connecting
State earphone to be measured to play out；Decoding unit (U11) is arranged to USB described in the mike Jing to the earphone to be measured and inserts
Seat (J2) audio digital signals (DM1) that send carry out decoding process and obtain analog voice signal (AM1), and by the simulation language
Described in message number (AM1) Jing, 3.5mm sockets (J1) send to the playback equipment and play out.
2. earphone test circuit according to claim 1, it is characterised in that USB socket (J2) is Type-C sockets
(J21)。
3. earphone test circuit according to claim 2, it is characterised in that decoding unit (U11) has for connecing
Receive the digital differential input (RX1+, RX1-) of the audio digital signals (DM1), and for exporting analog voice signal
(AM1) analog output (OUT1, OUT2), memory element (U13) are used for exporting the DAB letter with a pair
The audio frequency difference output end (TX3+, TX3-) of number (DR), the TX+ pins and TX- pins of Type-C sockets (J21) with it is described
Digital differential input (RX1+, RX1-) correspondence connects, RX+ pins and RX- pins and the audio frequency of the Type-C sockets
Difference output end (TX3+, TX3-) correspondence connects, the left sound of analog output (OUT1, the OUT2) and the 3.5mm sockets
Road contact (L) and R channel contact (R) correspondence connect.
4. earphone test circuit according to claim 1, it is characterised in that the earphone test circuit is also pressed including first
Key (SW1) and control unit (U14), the first button (SW1) export the first trigger to described control unit (U14)
(C1), described control unit (U14) is arranged to control the memory element (U13) according to the first trigger (C1) defeated
Go out the digital audio and video signals.
5. earphone test circuit according to claim 4, it is characterised in that the earphone test circuit is also pressed including second
Key (SW2), the second button (SW2) export the second trigger (C2), described control unit to described control unit (U14)
(U14) it is arranged to control the memory element (U13) according to the second trigger (C2) increase DAB letter
Number power.
6. earphone test circuit according to claim 4, it is characterised in that the earphone test circuit is also pressed including the 3rd
Key (SW3), the 3rd button (SW3) export the 3rd trigger (C3), described control unit to described control unit (U14)
(U14) it is arranged to control the memory element (U13) according to the 3rd trigger (C3) reduce DAB letter
Number power.
7. earphone test circuit according to claim 4, it is characterised in that decoding unit (U11), the storage are single
First (U13) and described control unit (U14) are provided by a singlechip chip.
8. earphone test circuit according to claim 1, it is characterised in that the earphone test circuit also includes power supply list
First (U21), power subsystem (U21) are arranged to export the electricity of first voltage signal (VCC1) to the USB socket (J2)
Source pin.
9. earphone test circuit according to claim 8, it is characterised in that power subsystem (U21) include battery and
Linear voltage regulator, the linear voltage regulator are arranged to for the cell voltage that the battery is provided to be converted to the first voltage letter
Number (VCC1), and first voltage signal (VCC1) is exported to the power pins of the USB socket (J2) (VBUS).
10. earphone test circuit according to claim 8, it is characterised in that the earphone test circuit also includes voltage
Converting unit (U22), voltage conversion unit (U22) are arranged to for first voltage signal (VCC1) to be converted to second
Voltage signal (VCC2), powering to other units.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045896.0A CN106535077B (en) | 2016-11-22 | 2016-11-22 | A kind of earphone test circuit |
| PCT/CN2017/089225 WO2018095025A1 (en) | 2016-11-22 | 2017-06-20 | Earphone testing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045896.0A CN106535077B (en) | 2016-11-22 | 2016-11-22 | A kind of earphone test circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106535077A true CN106535077A (en) | 2017-03-22 |
| CN106535077B CN106535077B (en) | 2019-03-15 |
Family
ID=58356678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611045896.0A Active CN106535077B (en) | 2016-11-22 | 2016-11-22 | A kind of earphone test circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106535077B (en) |
| WO (1) | WO2018095025A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515341A (en) * | 2017-09-11 | 2017-12-26 | 歌尔科技有限公司 | A kind of test board |
| WO2018095025A1 (en) * | 2016-11-22 | 2018-05-31 | 歌尔股份有限公司 | Earphone testing circuit |
| WO2018095026A1 (en) * | 2016-11-22 | 2018-05-31 | 歌尔股份有限公司 | Earphone test circuit |
| CN109547910A (en) * | 2019-01-03 | 2019-03-29 | 百度在线网络技术（北京）有限公司 | Electronic equipment acoustic assembly performance test methods, device, equipment and storage medium |
| WO2019236015A1 (en) * | 2018-06-06 | 2019-12-12 | Pornrojnangkool Tarin | Headphone systems and methods for emulating the audio performance of multiple distinct headphone models |
| CN111836180A (en) * | 2019-04-23 | 2020-10-27 | Oppo（重庆）智能科技有限公司 | Electronic equipment earphone function test system and test method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111752176A (en) * | 2019-03-28 | 2020-10-09 | 天津大学 | Micro-pollutant detection equipment's single chip microcomputer system |
| CN114554351B (en) * | 2022-01-28 | 2024-05-28 | 歌尔科技有限公司 | Audio transmission circuit, audio transmission method and electronic equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101111103A (en) * | 2007-08-08 | 2008-01-23 | 常州美欧电子有限公司 | Digital microphone parameter measuring system |
| CN101426167A (en) * | 2007-10-30 | 2009-05-06 | 中兴通讯股份有限公司 | Audio test system and method |
| CN102026083A (en) * | 2009-09-16 | 2011-04-20 | 沈阳晨讯希姆通科技有限公司 | Earphone test device |
| US20140348334A1 (en) * | 2013-05-23 | 2014-11-27 | Samsung Electronics Co., Ltd. | Portable terminal and method for detecting earphone connection |
| CN105120404A (en) * | 2015-07-31 | 2015-12-02 | 华为技术有限公司 | Audio equipment, terminal equipment and electronic equipment |
| CN105516872A (en) * | 2014-10-14 | 2016-04-20 | 名硕电脑(苏州)有限公司 | Audio test system and test method thereof |
| CN106101971A (en) * | 2016-08-16 | 2016-11-09 | 歌尔股份有限公司 | The method of testing of earphone and frock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106535077B (en) * | 2016-11-22 | 2019-03-15 | 歌尔股份有限公司 | A kind of earphone test circuit |
-
2016
- 2016-11-22 CN CN201611045896.0A patent/CN106535077B/en active Active
-
2017
- 2017-06-20 WO PCT/CN2017/089225 patent/WO2018095025A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101111103A (en) * | 2007-08-08 | 2008-01-23 | 常州美欧电子有限公司 | Digital microphone parameter measuring system |
| CN101426167A (en) * | 2007-10-30 | 2009-05-06 | 中兴通讯股份有限公司 | Audio test system and method |
| CN102026083A (en) * | 2009-09-16 | 2011-04-20 | 沈阳晨讯希姆通科技有限公司 | Earphone test device |
| US20140348334A1 (en) * | 2013-05-23 | 2014-11-27 | Samsung Electronics Co., Ltd. | Portable terminal and method for detecting earphone connection |
| CN105516872A (en) * | 2014-10-14 | 2016-04-20 | 名硕电脑(苏州)有限公司 | Audio test system and test method thereof |
| CN105120404A (en) * | 2015-07-31 | 2015-12-02 | 华为技术有限公司 | Audio equipment, terminal equipment and electronic equipment |
| CN106101971A (en) * | 2016-08-16 | 2016-11-09 | 歌尔股份有限公司 | The method of testing of earphone and frock |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018095025A1 (en) * | 2016-11-22 | 2018-05-31 | 歌尔股份有限公司 | Earphone testing circuit |
| WO2018095026A1 (en) * | 2016-11-22 | 2018-05-31 | 歌尔股份有限公司 | Earphone test circuit |
| CN107515341A (en) * | 2017-09-11 | 2017-12-26 | 歌尔科技有限公司 | A kind of test board |
| CN107515341B (en) * | 2017-09-11 | 2024-04-02 | 歌尔科技有限公司 | Test board |
| WO2019236015A1 (en) * | 2018-06-06 | 2019-12-12 | Pornrojnangkool Tarin | Headphone systems and methods for emulating the audio performance of multiple distinct headphone models |
| US11432064B2 (en) | 2018-06-06 | 2022-08-30 | Titum Audio, Inc. | Headphone systems and methods for emulating the audio performance of multiple distinct headphone models |
| CN109547910A (en) * | 2019-01-03 | 2019-03-29 | 百度在线网络技术（北京）有限公司 | Electronic equipment acoustic assembly performance test methods, device, equipment and storage medium |
| CN109547910B (en) * | 2019-01-03 | 2021-12-28 | 百度在线网络技术（北京）有限公司 | Electronic equipment acoustic assembly performance testing method, device, equipment and storage medium |
| CN111836180A (en) * | 2019-04-23 | 2020-10-27 | Oppo（重庆）智能科技有限公司 | Electronic equipment earphone function test system and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018095025A1 (en) | 2018-05-31 |
| CN106535077B (en) | 2019-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106535077B (en) | A kind of earphone test circuit | |
| CN105120404B (en) | A kind of audio frequency apparatus, terminal device and electronic equipment | |
| US9788096B2 (en) | Transmission method, mobile terminal, multi-channel headset, and audio play system | |
| CN106255003B (en) | Audio processor in the operation control method and terminal device of earphone noise reduction | |
| CN105554606B (en) | Digital earphone and electronic equipment | |
| CN105848028B (en) | Earphone for charging for audio frequency apparatus and be audio frequency apparatus charging method | |
| CN106658328B (en) | A kind of earphone test circuit | |
| CN101783986A (en) | Earphone interface circuit and electronic equipment | |
| CN101841588A (en) | Audio interface device and electronic device using same | |
| CN104267924A (en) | Mobile terminal and audio processing method thereof | |
| CN104936098A (en) | Sound effect setting device, sound effect setting method, playing system and playing method | |
| CN107455009A (en) | Audio system and earphone | |
| CN105828224B (en) | Electronic device, corrector and earphone microphone for correcting electronic device | |
| CN105228044A (en) | A kind of harmless tonequality earphone | |
| CN204090127U (en) | A kind of device sound mixing | |
| EP3119106A1 (en) | A passive audio headset compatible with binaural recording and off-headset noise cancellation | |
| CN106131732A (en) | A kind of earphone | |
| CN204013994U (en) | Earphone | |
| CN203632848U (en) | Handheld electronic device | |
| CN206851033U (en) | A kind of four-section type headset and earphone interface | |
| CN105812979B (en) | A kind of earphone | |
| CN201000926Y (en) | Multipath audio signal wire | |
| CN205647889U (en) | Headset | |
| CN208971820U (en) | Earphone insertion detection circuit, earphone isolation circuit and electronic equipment | |
| CN207399486U (en) | A kind of microphone device extended by ear microphone jack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |