CN109788422A - A kind of test program and system of hi-fidelity audio equipment - Google Patents
A kind of test program and system of hi-fidelity audio equipment Download PDFInfo
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- CN109788422A CN109788422A CN201910049078.5A CN201910049078A CN109788422A CN 109788422 A CN109788422 A CN 109788422A CN 201910049078 A CN201910049078 A CN 201910049078A CN 109788422 A CN109788422 A CN 109788422A
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Abstract
The invention discloses a kind of test program of hi-fidelity audio equipment and systems, including test box and control equipment, the inner wall of the test box is fixedly connected with the first acoustical cotton, case lid is connected at the top of the test box, and the inner surface of case lid is fixedly connected with the second acoustical cotton, the bottom of first acoustical cotton inner cavity is connected with audio frequency apparatus, the bottom of the test right wall of box, which is run through, data line, the left end of the data line is related to test macro technical field by the clamping of the right side of plug and audio frequency apparatus.The test program and system of the hi-fidelity audio equipment, by the way that the first acoustical cotton and the second acoustical cotton is respectively set in the inner surface of test box and case lid, it can be when audio frequency apparatus plays sound, by wave absorption, it avoids it from forming echo in closed space, and then influences the accuracy of test, and grafting audio frequency apparatus is tested inside test box, it is free from the influence of the external environment, it is simple to operate.
Description
Technical field
The present invention relates to test macro technical field, the test program and system of specially a kind of hi-fidelity audio equipment.
Background technique
Audio frequency apparatus is mainly to the general name of audio input-output device comprising product type it is also very much, generally may be used
It is following several to be divided into: power amplifier, speaker, multimedia console, digital sound console, audio sample card, synthesizer, medium-high frequency sound
Case, microphone, sound card, earphone etc. in PC.Sound quality is the major criterion for determining audio frequency apparatus quality, including signal-to-noise ratio, is adopted
The height of the indexs such as sample digit, sample frequency, total harmonic distortion, these parameters determines the sound quality of audio frequency apparatus.Device type
The type for referring to audio frequency apparatus, is exactly that audio frequency apparatus belongs to power amplifier, speaker, multimedia console, digital sound console, audio sample
Card, synthesizer, medium-high frequency speaker, microphone, which kind of equipment in sound card, earphone in PC etc..Power amplifier is most base in sound system
This equipment, its task is to the ultra-weak electronic signal from signal source is amplified to make a sound with drive the speaker.Tuning
Platform is also known as tuning console, and multichannel input signal is amplified, mixed, distributed by it, sound quality modification and acoustics are processed, and is
The important equipment of program is broadcast and recorded in the systems such as modern station broadcast, stage amplify, sound equipment program making.Audio work
Work station is one and integrates audio sound-recording, audio editing, internal effects processing, automatic mixed etc. the function that contracts as the integrated profession of the whole body
Audio workstation is made of computer and its operating system, audio card and functional software three parts.Synthesizer is exactly various each
The box-shaped device of sample interconnects, and is finally uniformly connected to a keyboard up.It can be defined as by the sound frequency of human perception
20-20000HZ.Sound is the sound wave generated by object vibration.Be pass through medium propagate and can be by human or animal hearing organ
The wave phenomenon perceived.Digital audio is that we save voice signal, transmits a kind of mode of voice signal, and its feature is
Signal is not easy to lose.
Existing hi-fidelity audio equipment needs to test the audio of equipment before factory, and then judges audio frequency parameter
Fidelity factor, structure is complicated for existing test device, inconvenient, and to guarantee noiseless interference, be usually all build it is mute
Room improves cost, and general test is all to put one section of music testing audio, not complete enough to the audio-frequency test of different tone height
Face.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of test program of hi-fidelity audio equipment and system, solves
Structure is complicated for existing test device, inconvenient, builds quiet room to guarantee noiseless interference, improves cost, and one
As to test all be to put one section of music testing audio, the problem not comprehensive enough to the audio-frequency test of different tone height.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of test journey of hi-fidelity audio equipment
Sequence and system, including test box and control equipment, the inner wall of the test box are fixedly connected with the first acoustical cotton, the test box
Top be connected with case lid, and the inner surface of case lid is fixedly connected with the second acoustical cotton, the bottom of first acoustical cotton inner cavity
It is connected with audio frequency apparatus, through there is data line, the left end of the data line passes through plug for the bottom of the test right wall of box
It is clamped with the right side of audio frequency apparatus, is fixedly connected with microphone, the right side and position of the test box on the right side of the test chamber interior wall
Be fixedly connected with transmission line on the right side of microphone, one end of the transmission line and data line with the surface of control equipment is fixed connects
It connects, the top at left and right sides of the test box is fixedly connected to hangers, and buckle is rotatably connected at the top of hangers side, institute
The surface pivots for stating buckle are connected with link, two sides of the case lid and surface for being located at buckle is fixedly connected with fixture block, and
Link is set in the surface of fixture block.
Preferably, lift-pull handle is fixedly connected at the top of the case lid, the bottom of the test box is fixedly connected with pad
Foot.
Preferably, the control equipment includes processing module, operation interface, input port, output port, library, record
Enter module, selecting module, A/D converter and analysis module.
Preferably, the input terminal of the output end of the input port and A/D converter connect, the A/D converter it is defeated
The connection of the input terminal of outlet and processing module.
Preferably, the output end of the processing module input terminal with analysis module, recording module and output port respectively
Connection, the output end of the analysis module and the input terminal of operation interface connect.
Preferably, the output end of the operation interface and the input terminal of processing module connect, the output of the recording module
End is connect with the input terminal of library.
Preferably, the library is bi-directionally connected with selecting module realization, and the selecting module and processing modules implement are double
To connection.
Preferably, the library is made of N number of tone file.
(3) beneficial effect
The present invention provides a kind of test program of hi-fidelity audio equipment and systems.Compared with prior art, having following has
Beneficial effect:
(1), the test program and system of the hi-fidelity audio equipment is fixedly connected with the first sound-absorbing by the inner wall in test box
Cotton is connected with case lid at the top of test box, and the inner surface of case lid is fixedly connected with the second acoustical cotton, the first acoustical cotton inner cavity
Bottom is connected with audio frequency apparatus, tests the bottom of right wall of box through there is data line, the left end of data line passes through plug and sound
The right side of frequency equipment is clamped, and is tested and is fixedly connected with microphone on the right side of chamber interior wall, the right side of test box and the right side for being located at microphone
It is fixedly connected with transmission line, one end of transmission line and data line is fixedly connected with the surface of control equipment, by test box
The first acoustical cotton and the second acoustical cotton is respectively set with the inner surface of case lid, can inhale sound wave when audio frequency apparatus plays sound
It receives, avoids it from forming echo in closed space, and then influence the accuracy of test, and grafting audio is set inside test box
It is standby to be tested, it is free from the influence of the external environment, it is simple to operate, and independent small space, reduce cost.
(2), the test program and system of the hi-fidelity audio equipment, it is fixed by the top at left and right sides of test box
It is connected with hangers, and is rotatably connected to buckle at the top of hangers side, the surface pivots of buckle are connected with link, the two sides of case lid
And the surface for being located at buckle is fixedly connected with fixture block, and link is set in the surface of fixture block, can be convenient for mentioning by setting hangers
Test box is played, and utilizes the cooperation of buckle, link and fixture block, quickly and easily case lid and test box can be fastened, form sealing
Environment avoids the interference of external sound, guarantees the accuracy of test, and is easy to dismount, easy to use.
(3), the test program and system of the hi-fidelity audio equipment, by processing module output end respectively with typing
Module is connected with the input terminal of output port, and the output end of recording module and the input terminal of library connect, library and selection
Module realization is bi-directionally connected, and the output end of operation interface and the input terminal of processing module connect, and selecting module and processing module are real
It is now bi-directionally connected, library is made of N number of tone file, can be in internal reservoir difference pitch by the way that library is arranged
Tone file, using the cooperation of operation interface and selecting module, the different tone files of selection arbitrarily or according to certain rules, and
It is transferred to audio frequency apparatus by output port to play out, and then convenient for testing the fidelity factor of different tone subaudio frequency equipment, inspection
Survey accurate, good test effect comprehensively.
(4), the test program and system of the hi-fidelity audio equipment is converted by the output end in input port with A/D
The input terminal of device connects, and the output end of A/D converter and the input terminal of processing module connect, the output end of processing module and analysis
The input terminal of module connects, and the output end of analysis module and the input terminal of operation interface connect, will be defeated by setting A/D converter
The voice signal that inbound port transmission comes is changed into digital signal, and by analysis module conversion after, with curve in operation interface
Form show audio frequency parameter, and then can intuitively judge the fidelity factor of audio frequency apparatus, it is simple to operate.
Detailed description of the invention
Fig. 1 is the cross-sectional view of structure of the invention；
Fig. 2 is the partial enlarged view in Fig. 1 of the present invention at A；
Fig. 3 is system principle diagram of the invention；
Fig. 4 is the structural principle block diagram of library of the present invention.
In figure, 1- test box, 2- control equipment, 20- tone file, 21- processing module, 22- operation interface, 23- input
Port, 24- output port, 25- library, 26- recording module, 27- selecting module, 28-A/D converter, 29- analysis module,
The first acoustical cotton of 3-, 4- case lid, the second acoustical cotton of 5-, 6- audio frequency apparatus, 7- data line, 8- microphone, 9- transmission line, 10- hangers,
11- buckle, 12- link, 13- fixture block, 14- lift-pull handle.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4 is please referred to, the embodiment of the present invention provides a kind of technical solution: a kind of test program of hi-fidelity audio equipment
And system, including test box 1 and control equipment 2, test box 1 and case lid 4 are sound insulation material, and control equipment 2 includes processing mould
Block 21, operation interface 22, input port 23, output port 24, library 25, recording module 26, selecting module 27, A/D conversion
Device 28 and analysis module 29, processing module 21 are ARM9 series processors, and A/D converter 28 is AD7574 model A/D converter,
The output end of input port 23 is connect with the input terminal of A/D converter 28, output end and the processing module 21 of A/D converter 28
Input terminal connection, the output end of processing module 21 input terminal with analysis module 29, recording module 26 and output port 24 respectively
Connection, the output end of analysis module 29 are connect with the input terminal of operation interface 22, by the way that A/D converter 28 is arranged by input port
The voice signals that 23 transmission come are changed into digital signal, and after being converted by analysis module 29, with curve in operation interface 22
Form show audio frequency parameter, and then can intuitively judge the fidelity factor of audio frequency apparatus 6, simple to operate, operation interface 22
Output end connect with the input terminal of processing module 21, the output end of recording module 26 is connect with the input terminal of library 25, text
Part library 25 is bi-directionally connected with the realization of selecting module 27, and selecting module 27 is bi-directionally connected with the realization of processing module 21, and library 25 is by N
A tone file 20 forms, N number of tone file 20 in library 25, file and mixed audio including single audio frequency
File, can be in the tone file 20 of internal reservoir difference pitch by the way that library 25 is arranged convenient for different tests, can
Using the cooperation of operation interface 22 and selecting module 27, the different tone files 20 of selection arbitrarily or according to certain rules, and pass through
Output port 24 is transferred to audio frequency apparatus 6 and plays out, and then convenient for testing the fidelity factor of different tone subaudio frequency equipment 6, inspection
Accurate, good test effect comprehensively is surveyed, the inner wall of test box 1 is fixedly connected with the first acoustical cotton 3, and the first acoustical cotton 3 and second is inhaled
5, sound cotton as sound absorber matter, and surface offers aperture, and to reduce echo, the top of test box 1 is connected with case lid 4, case lid
4 top is fixedly connected with lift-pull handle 14, and the bottom of test box 1 is fixedly connected with feet, and the fixed company of inner surface of case lid 4
It is connected to the second acoustical cotton 5, the bottom of 3 inner cavity of the first acoustical cotton is connected with audio frequency apparatus 6, and the bottom of 1 right wall of test box is passed through
It is installed with data line 7, output port 24 is data line 7, and data line 7 not only can transmit data for audio frequency apparatus 6, can also pass through control
Control equipment 2 controls the starting of audio frequency apparatus 6, and the left end of data line 7 passes through the clamping of the right side of plug and audio frequency apparatus 6, test box 1
It is fixedly connected with microphone 8 on the right side of inner wall, the right side of the test box 1 and right side for being located at microphone 8 is fixedly connected with transmission line 9 passes
Defeated line 9 is electrically connected with microphone 8, and one end of transmission line 9 and data line 7 is fixedly connected with the surface of control equipment 2, by surveying
The first acoustical cotton 3 and the second acoustical cotton 5 is respectively set in examination case 1 and the inner surface of case lid 4, can in the broadcasting sound of audio frequency apparatus 6,
By wave absorption, it is avoided to form echo in closed space, and then from influencing the accuracy of test, and inside test box 1
Grafting audio frequency apparatus 6 is tested, free from the influence of the external environment, simple to operate, and independent small space, is reduced into
This, the top of 1 left and right sides of test box is fixedly connected to hangers 10, and is rotatably connected to buckle at the top of 10 side of hangers
11, the surface pivots for buckling 11 are connected with link 12, and buckle 11, link 12 and fixture block 13 are the technology of existing maturation, case lid 4
The two sides and surface for being located at buckle 11 is fixedly connected with fixture block 13, and link 12 is set in the surface of fixture block 13, passes through setting
Hangers 10 can utilize the cooperation of buckle 11, link 12 and fixture block 13 convenient for lifting test box 1, can be quickly and easily by case lid 4
It is fastened with test box 1, forms the interference that sealed environment avoids external sound, guarantee the accuracy of test, and be easy to dismount, use
It is convenient.
In use, moving buckle 11, link 12 is removed from fixture block 13, then opens case lid 4, by sound to be tested
Frequency equipment 6 is put into test box 1, makes the side of 6 sounding of audio frequency apparatus towards microphone 8, and the plug of 7 one end of data line is injected sound
Frequency equipment 6 covers case lid 4, and link 12 is hung on fixture block 13, firmly moves buckle 11 and fixes case lid 4 tightly, by data line 7
Control equipment 2 is connected with data line 7, is operated in operation interface 22, different tone files 20 is passed through into recording module 26
It is entered into library 25, when test, is selected in operation interface 22, by selecting module 27 by the tone file in library 25
20 take out, and are then transferred to audio frequency apparatus 6 by output port 24 and play out, microphone 8 leads to the voice data recorded
It crosses A/D converter 28 and is converted into digital data transmission to processing module 21, and analyze the audio ginseng of data by analysis module 29
Number, data is shown in operation interface 22 in graph form, judges fidelity factor by tester.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. the test program and system of a kind of hi-fidelity audio equipment, including test box (1) and control equipment (2), feature exists
In: the inner wall of the test box (1) is fixedly connected with the first acoustical cotton (3), is connected with case lid at the top of the test box (1)
(4), and the inner surface of case lid (4) is fixedly connected with the second acoustical cotton (5), the bottom activity of the first acoustical cotton (3) inner cavity
It is connected with audio frequency apparatus (6), the bottom of test box (1) right wall, which is run through, to be had data line (7), the left end of the data line (7)
It is clamped by the right side of plug and audio frequency apparatus (6), is fixedly connected with microphone (8) on the right side of test box (1) inner wall, it is described
The right side of test box (1) and be located at microphone (8) on the right side of be fixedly connected with transmission line (9), the transmission line (9) and data line
(7) one end is fixedly connected with the surface of control equipment (2), and the top at left and right sides of the test box (1) is fixedly connected with
Have hangers (10), and is rotatably connected to buckle (11) at the top of hangers (10) side, the surface pivots connection of the buckle (11)
Have link (12), two sides of the case lid (4) and being located at right above buckle (11) are fixedly connected with fixture block (13), and link
(12) it is set in the surface of fixture block (13).
2. the test program and system of a kind of hi-fidelity audio equipment according to claim 1, it is characterised in that: the case
It is fixedly connected with lift-pull handle (14) at the top of lid (4), the bottom of the test box (1) is fixedly connected with feet.
3. the test program and system of a kind of hi-fidelity audio equipment according to claim 1, it is characterised in that: the control
Control equipment (2) include processing module (21), operation interface (22), input port (23), output port (24), library (25),
Recording module (26), selecting module (27), A/D converter (28) and analysis module (29).
4. the test program and system of a kind of hi-fidelity audio equipment according to claim 3, it is characterised in that: described defeated
The output end of inbound port (23) is connect with the input terminal of A/D converter (28), the output end of the A/D converter (28) and processing
The input terminal of module (21) connects.
5. the test program and system of a kind of hi-fidelity audio equipment according to claim 3, it is characterised in that: the place
The output end of reason module (21) is connect with the input terminal of analysis module (29), recording module (26) and output port (24) respectively,
The output end of the analysis module (29) is connect with the input terminal of operation interface (22).
6. the test program and system of a kind of hi-fidelity audio equipment according to claim 3, it is characterised in that: the behaviour
The output end for making interface (22) is connect with the input terminal of processing module (21), the output end and library of the recording module (26)
(25) input terminal connection.
7. the test program and system of a kind of hi-fidelity audio equipment according to claim 3, it is characterised in that: the text
Realize and be bi-directionally connected that two-way company is realized in the selecting module (27) and processing module (21) with selecting module (27) in part library (25)
It connects.
8. the test program and system of a kind of hi-fidelity audio equipment according to claim 3, it is characterised in that: the text
Part library (25) is made of N number of tone file (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049078.5A CN109788422A (en) | 2019-01-18 | 2019-01-18 | A kind of test program and system of hi-fidelity audio equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049078.5A CN109788422A (en) | 2019-01-18 | 2019-01-18 | A kind of test program and system of hi-fidelity audio equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109788422A true CN109788422A (en) | 2019-05-21 |
Family
ID=66501689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910049078.5A Pending CN109788422A (en) | 2019-01-18 | 2019-01-18 | A kind of test program and system of hi-fidelity audio equipment |
Country Status (1)
| Country | Link |
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| CN111131994A (en) * | 2019-12-31 | 2020-05-08 | 深圳市鸿运达电子科技有限公司 | Test program and system of high-fidelity audio equipment |
| CN112333620A (en) * | 2020-12-02 | 2021-02-05 | 歌尔科技有限公司 | Microphone calibration detection device |
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| CN112333620A (en) * | 2020-12-02 | 2021-02-05 | 歌尔科技有限公司 | Microphone calibration detection device |
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Application publication date: 20190521 |
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