CN208143482U - The test macro of audio product - Google Patents
The test macro of audio product Download PDFInfo
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- CN208143482U CN208143482U CN201820278831.9U CN201820278831U CN208143482U CN 208143482 U CN208143482 U CN 208143482U CN 201820278831 U CN201820278831 U CN 201820278831U CN 208143482 U CN208143482 U CN 208143482U
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Abstract
A kind of test macro of audio product, including：Tested audio product, the tested audio product have microphone, central control system and test node；The test node of audio-frequency test software systems, the tested audio product connects the audio-frequency test software systems；Further include：The output port of audio frequency replaying apparatus, the audio-frequency test software systems connects the input port of the audio frequency replaying apparatus；Close to the microphone of the tested audio product, the audio signal for enabling the audio frequency replaying apparatus to play is received the audio frequency replaying apparatus by the microphone.The test macro improves the testing efficiency to audio product, also, ensure that the shipment quality of audio product.
Description
Technical field
The utility model relates to audio-frequency test field more particularly to a kind of test macros of audio product.
Background technique
Great variety occurs for world technology now, and the artificial intelligence epoch arrive gradually.Work is made in manufacturing enterprise
Industry internet vision, puts forth effort the digital plant of construction of modern.And digital factory needs powerful data to acquire, most of sounds
Frequency product is capable of providing data (audio data) acquisition function, is paid close attention to by people.
For audio product, many tests can only could be completed in component or finished product stage, and for internal system electricity
Road transport makees test and separately test method is needed just to can be carried out, and not only needs with more manpowers, but also to put into a large amount of equipment, raw
It is lower to produce efficiency.
Utility model content
The utility model solves the problems, such as the test macro for being to provide a kind of audio product, so that testing efficiency is improved,
And improve audio product shipment quality.
To solve the above problems, the utility model provides a kind of test macro of audio product, including：Tested audio produces
Product, the tested audio product have microphone, central control system and test node；Audio-frequency test software systems, the quilt
The test node for surveying audio product connects the audio-frequency test software systems；Further include：Audio frequency replaying apparatus, the audio
The output port of software system connects the input port of the audio frequency replaying apparatus；The audio frequency replaying apparatus is close to described
The microphone of tested audio product, the audio signal for enabling the audio frequency replaying apparatus to play are connect by the microphone
It receives.
Optionally, the audio-frequency test software systems, the audio frequency replaying apparatus, the microphone, maincenter control
System and the test node constitute closed loop.
Optionally, the test macro further includes sound attenuator, and the tested audio product and the audio frequency replaying apparatus are set
It is placed in the sound attenuator, the audio-frequency test software systems are set to outside the sound attenuator.
Optionally, the test macro further includes audio-frequency test power amplifier, and the audio-frequency test power amplifier is set
It is placed in outside the sound attenuator；The test node of the tested audio product is connected to through the audio-frequency test power amplifier
The audio-frequency test software systems；The output port of the audio-frequency test software systems connects through the audio-frequency test power amplifier
It is connected to the input port of the audio frequency replaying apparatus.
Optionally, the audio frequency replaying apparatus includes pressure calibration device.
Optionally, the audio frequency replaying apparatus is artificial mouth or active audio amplifier.
Optionally, the central control system is MCU central control system.
Optionally, the microphone is electret microphone or MEMS microphone.
Optionally, the audio-frequency test software systems are Sound check audio-frequency test instrument, Audio Precision sound
Frequency measuring and analysing meter, MLSSA audio-frequency test instrument, CLIO audio-frequency test instrument, B&K audio-frequency test instrument or LMS audio-frequency test instrument.
Optionally, the test macro further includes power supply unit, and the power supply unit is power supply adaptor or battery.
In one of technical solution of the utility model, pass through matching for audio-frequency test software systems and audio frequency replaying apparatus
It closes, so that being played after test signal is generated through audio-frequency test software systems by audio frequency replaying apparatus, and is produced via tested audio
Microphone (microphone) in product picks up the test signal to central control system, and central control system directly picks up microphone
Test signal be transmitted to test node, test node, which will test signal and be back to audio-frequency test software systems, carries out operation, most
Corresponding parameter value, such as frequency response curve, distortion curve and sensitivity etc. are shown eventually, to guarantee the kinds of goods out of audio product
Matter.
Detailed description of the invention
Fig. 1 is the test macro schematic diagram of audio product provided by the embodiment of the utility model.
Specific embodiment
Existing audio product usually only individually tests microphone, is individually tested circuit, low efficiency.
For this purpose, the utility model provides a kind of new test macro, to solve above-mentioned deficiency,
More clearly to indicate, the utility model is described in detail with reference to the accompanying drawing.
The utility model embodiment provides a kind of test macro of audio product, incorporated by reference to reference Fig. 1.The test macro
Including tested audio product 110, audio-frequency test software systems 120 and audio frequency replaying apparatus 130.Tested audio product 110 has
(test node 113 can be survey for microphone 111, central control system (MCU112 is specifically used in Fig. 1) and test node 113
Pin mouthfuls of points are tried, pin is usually all kinds of pins).The test node 113 of tested audio product 110 connects audio-frequency test software systems
120.The input port of the output port connection audio frequency replaying apparatus 130 of audio-frequency test software systems 120.Audio frequency replaying apparatus
130 close to tested audio products 110 microphone 111 (such as distance between the two usually can in the range of half meter,
Even more than ten centimetres to several centimetres of range), the audio signal for enabling audio frequency replaying apparatus 130 to play is by microphone 111
Receive (as long as that is, specific above-mentioned close distance guarantees effective reception of respective audio signal).
Test macro provided by the present embodiment further includes audio-frequency test power amplifier 140, audio-frequency test power amplification
Device 140 is a kind of audio-frequency power amplifier, and audio-frequency power amplifier abbreviation audio frequency power amplifier.The audio-frequency test power of the present embodiment
Amplifier 140 is the power amplifier device for pushing the loudspeaker sounding of audio frequency replaying apparatus 130 to reappear sound.
Test macro provided by the present embodiment further include sound attenuator 150 (except sound attenuator is indicated by the dashed box in Fig. 1,
Its structure is indicated with solid box), tested audio product 110 and audio frequency replaying apparatus 130 are set in sound attenuator 150, and audio is surveyed
Examination software systems 120 are set to outside sound attenuator 150, and the connection (can be using modes such as connecting lines) between them can then lead to
Threading connection is crossed, still, the connection between them can also be connected using wireless mode.The utility model is not construed as limiting this.
Sound attenuator 150 is set, so that test environment establishes the base in sound attenuator 150 in system provided by the present embodiment
On plinth, testing precision is improved, it is free from the influence of the external environment.
In the present embodiment, setting audio-frequency test power amplifier 140 be set to outside sound attenuator 150, reason be equally for
Raising testing precision.
In the present embodiment, the test node 113 that tested audio product 110 is arranged connects through audio-frequency test power amplifier 140
It is connected to audio-frequency test software systems 120.Meanwhile the output port of audio-frequency test software systems 120 is through audio-frequency test power amplification
Device 140 is connected to the input port of audio frequency replaying apparatus 130.
In the present embodiment, audio-frequency test software systems 120, audio frequency replaying apparatus 130, microphone 111, central control system
Closed loop is constituted with test node 113.In fact, since the test macro further includes audio-frequency test power amplifier 140, and
And 140 link position of audio-frequency test power amplifier by showing in above content is it is found that audio-frequency test power amplifier 140
It also is located at the closed loop, belongs to a part of closed loop.Or it may also be said that is filled in audio-frequency test software systems 120, audio playback
It sets in the closed loop that 130, microphone 111, central control system and test node 113 are constituted, joined audio-frequency test power amplification
Device 140, coal addition position refer to foregoing teachings.Due to constituting the closed loop, test macro provided by the present embodiment into
Capable is closed loop test, for open-loop test is compared in closed loop test, more actual effect and precisely.
In the present embodiment, audio frequency replaying apparatus 130 includes pressure calibration device.
In the present embodiment, audio frequency replaying apparatus 130 is artificial mouth or active audio amplifier.Active audio amplifier can be protected further to be high
True active audio amplifier.
Already mentioned above in the present embodiment, central control system can be specially MCU central control system, in Fig. 1
It is shown as MCU112.
In the present embodiment, microphone 111 is electret microphone or MEMS microphone, it is of course also possible to be other types
Microphone.Microphone includes that number or simulation two types, two types can use.
In the present embodiment, audio-frequency test software systems 120 are Sound check audio-frequency test instrument, Audio Precision
Audio-frequency test analyzer, MLSSA audio-frequency test instrument, CLIO audio-frequency test instrument, B&K audio-frequency test instrument or LMS audio-frequency test instrument.
In the present embodiment, test macro further includes power supply unit, and power supply unit is power supply adaptor or battery.
As shown in Figure 1, power supply unit 114 belongs to a component of tested audio product 110 in the present embodiment.
But in other embodiments, power supply unit is also possible to independently of the component part except tested audio product.
When power supply unit is battery, specific battery can be lithium battery, polymer battery or graphene battery (graphene
Class battery).
In test macro provided by the present embodiment, tested audio product 110 is given to power by power supply unit 114, audio
Software system 120 issues calibration signal, and calibration signal reaches audio frequency replaying apparatus by audio-frequency test power amplifier 140
130, audio frequency replaying apparatus 130 is calibrated by the pressure calibration device, is calibrated good rear audio-frequency test software systems 120 and is issued
Signal is tested, test signal again passes by audio-frequency test power amplifier 140 and reaches audio frequency replaying apparatus 130, audio playback dress
130 broadcastings test signal (test signal at this time is corresponding audio signal) is set, via transaudient in tested audio product 110
Device 111 (microphone) picks up the test signal to central control system (MCU central control system), which passes through
In house software etc. controls and is tested in the inside of audio product 110, the test signal that microphone 111 picks up directly is transmitted to survey
Node 113 is tried, test node 113 will test signal by aerial lug (aerial lug can be connection line etc.) and transmit
It is amplified to audio-frequency test power amplifier 140, then the test signal is back to audio-frequency test software systems 120 and is transported
It calculates, finally shows corresponding parameter value, such as frequency response curve, distortion curve and sensitivity etc..It can be by setting these parameters
The upper limit value (and lower limit value etc.) of value, to guarantee the shipment quality of audio product.
It is tested using test macro provided by the present embodiment, industrial test degree is high.Because the present embodiment is logical
Crossing tested 110 in house software of audio product and controlling its corresponding circuits is that (corresponding circuits i.e. microphone 111 to test saves direct-passing mode
Circuit between point 113), it originally conventional will cannot judge performance of the microphone 111 (microphone) in system, and pass through audio
The final operation of software system 120 is shown as reference data (parameter value), is managed, therefore industrializes test degree
It is high.
It is tested using test macro provided by the present embodiment, the quality of tested audio product 110 can be made to obtain
Good control.In existing mode, microphone 111 (microphone) often only tested in a manner of component, cannot with it is right
Circuit is answered to perform the one-to-one control together.But in the present embodiment, it can accomplish that the quality for not only making microphone 111 (microphone) obtains pipe
Control, moreover, the corresponding circuits of tested 110 whole system of audio product are also managed, it can testing audio circuit mentions
High audio product shipment quality.
Test macro provided by the present embodiment is easy to use, from the foregoing it can be that in the test macro of the present embodiment,
The software controlled circuitry by being tested inside audio product 110 is only needed, then builds the hardware such as audio-frequency test software systems 120 and sets
Standby (including audio frequency replaying apparatus 130, and may include audio-frequency test power amplifier 140), test can be completed, it is entire to survey
Examination is closed loop, and measuring accuracy and accuracy are high.
It, can be using analog signal output extremely finally at test node 113 in test macro provided by the present embodiment
Audio-frequency test software systems 120 (all kinds of audio analyzers), audio-frequency test software systems 120 pass through internal analysis operation, analysis
Tested 110 univers parameter of audio product, it is seen then that test macro provided by the present embodiment is in system utilization and two layers of test layer
Secondary versatility is relatively strong and low in cost, and conversion is convenient, guarantees the delivery quality of audio product.Meanwhile fitting through work
The method of industry test data can not only judge the performance of microphone 111 (microphone), and verify tested audio product
Whether 110 internal circuits are normal, improve the shipment quality of audio product.
Although the utility model discloses as above, the utility model is not limited to this.Anyone skilled in the art,
It does not depart from the spirit and scope of the utility model, can make various changes or modifications, therefore the protection scope of the utility model
It should be defined by the scope defined by the claims..
Claims (10)
1. a kind of test macro of audio product, including：
Tested audio product, the tested audio product have microphone, central control system and test node；Audio-frequency test is soft
The test node of part system, the tested audio product connects the audio-frequency test software systems；
It is characterized in that, further including：
The output port of audio frequency replaying apparatus, the audio-frequency test software systems connects the input terminal of the audio frequency replaying apparatus
Mouthful；The audio frequency replaying apparatus plays the audio frequency replaying apparatus close to the microphone of the tested audio product
Audio signal can be received by the microphone.
2. test macro as described in claim 1, which is characterized in that the audio-frequency test software systems, the audio playback
Device, the microphone, the central control system and the test node constitute closed loop.
3. test macro as claimed in claim 2, which is characterized in that it further include sound attenuator, the tested audio product and institute
It states audio frequency replaying apparatus to be set in the sound attenuator, the audio-frequency test software systems are set to outside the sound attenuator.
4. test macro as claimed in claim 3, which is characterized in that further include audio-frequency test power amplifier, the audio
Measured power amplifier is set to outside the sound attenuator；The test node of the tested audio product is through the audio-frequency test
Power amplifier is connected to the audio-frequency test software systems；The output port of the audio-frequency test software systems is through the audio
Measured power amplifier is connected to the input port of the audio frequency replaying apparatus.
5. test macro as described in claim 1, which is characterized in that the audio frequency replaying apparatus includes pressure calibration device.
6. test macro as claimed in claim 5, which is characterized in that the audio frequency replaying apparatus is artificial mouth or active sound
Case.
7. test macro as described in claim 1, which is characterized in that the central control system is MCU central control system.
8. test macro as described in claim 1, which is characterized in that the microphone is electret microphone or MEMS Mike
Wind.
9. test macro as described in claim 1, which is characterized in that the audio-frequency test software systems are Sound check
Audio-frequency test instrument, Audio Precision audio-frequency test analyzer, MLSSA audio-frequency test instrument, CLIO audio-frequency test instrument, B&K sound
Frequency tester or LMS audio-frequency test instrument.
10. test macro as described in claim 1, which is characterized in that the test macro further includes power supply unit, the confession
Denso is set to power supply adaptor or battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820278831.9U CN208143482U (en) | 2018-02-27 | 2018-02-27 | The test macro of audio product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820278831.9U CN208143482U (en) | 2018-02-27 | 2018-02-27 | The test macro of audio product |
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| CN208143482U true CN208143482U (en) | 2018-11-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113701A (en) * | 2019-03-26 | 2019-08-09 | 晶晨半导体(上海)股份有限公司 | A kind of hardware adjustment method for simulating microphone |
| CN110166923A (en) * | 2019-05-30 | 2019-08-23 | 厦门盈趣科技股份有限公司 | Audio frequency apparatus test macro and method |
-
2018
- 2018-02-27 CN CN201820278831.9U patent/CN208143482U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113701A (en) * | 2019-03-26 | 2019-08-09 | 晶晨半导体(上海)股份有限公司 | A kind of hardware adjustment method for simulating microphone |
| CN110113701B (en) * | 2019-03-26 | 2021-11-26 | 晶晨半导体(上海)股份有限公司 | Hardware debugging method for analog microphone |
| CN110166923A (en) * | 2019-05-30 | 2019-08-23 | 厦门盈趣科技股份有限公司 | Audio frequency apparatus test macro and method |
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