CN107205205A - Microphone apparatus for evaluating and appraisal procedure - Google Patents
Microphone apparatus for evaluating and appraisal procedure Download PDFInfo
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- CN107205205A CN107205205A CN201610153984.6A CN201610153984A CN107205205A CN 107205205 A CN107205205 A CN 107205205A CN 201610153984 A CN201610153984 A CN 201610153984A CN 107205205 A CN107205205 A CN 107205205A
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- microphone
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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
- H04R29/004—Monitoring arrangements; Testing arrangements for microphones
Abstract
Disclose a kind of microphone apparatus for evaluating and appraisal procedure, mainly solve that existing microphone apparatus for evaluating cost is high, assess low efficiency, poor universality, it is big to the degree of dependence of software kit and external equipment the problems such as.The microphone apparatus for evaluating that the present invention is provided is by signal conversion module, power supply module and control module are integrated together, the voltage that power supply module configuration matches with microphone to be measured is controlled by control module, the signal that microphone to be measured is produced is converted to the recognizable data signal of control module by control signal modular converter, and the sensitivity of Digital Signal Processing and analysis acquisition microphone to be measured is carried out to data signal, power consumption, data are assessed in frequency response etc., participate in can be achieved to treat the assessment for surveying microphone indices without external equipment, reduce the dependence to external equipment and connection difficulty, cost is low, in addition, adjustment at any time can be carried out to evaluation profile by control module, assess efficiency high and suitable for the assessment of different types of microphone.
Description
Technical field
The present invention relates to microphone evaluation areas, and in particular to a kind of microphone apparatus for evaluating and appraisal procedure.
Background technology
The parameters such as sensitivity, power consumption, frequency response, signal to noise ratio are to evaluate the important indicator of microphone property, are used
Professional audio test equipment can carry out accurately measurement to the These parameters of microphone and assess, but professional test equipment
Often expensive, rare numbers, all rare touch opportunity for most of research staff or even client is learned
Practise and use cost is too high.And the test board and software kit that some microphone producers provide only support its proprietary Mike
The assessment of wind, to different classes of microphone (such as simulation, I2S, PDM, ADM microphone etc., all kinds of microphone tools
Have different working frequency and voltage etc.), the assessment compatibility of different indexs it is poor.In addition, to the signal collected
Calculation analysis work usually require to realize by computer software, and other work then need corresponding circuit module
Or equipment is completed, the dependence to software kit and external equipment greatly limit the usage scenario for assessing test device.
The content of the invention
In view of this, the present invention provides a kind of low cost, assesses efficiency high, highly versatile, independent of external equipment
Microphone apparatus for evaluating.
For up to this purpose, the present invention uses following technical scheme：
A kind of microphone apparatus for evaluating, including at least one microphone interface, signal conversion module, power supply module and
Control module, wherein,
At least one microphone interface, for microphone to be measured to be accessed into the microphone apparatus for evaluating；
Signal conversion module, the signal for microphone to be measured to be produced is converted to the recognizable number of the control module
Word signal；
Power supply module, for for microphone power to be measured；
Control module, for the voltage for controlling the power supply module output to match with the microphone to be measured, control
The signal that microphone to be measured is produced is converted to its recognizable data signal by the signal conversion module, to the number
Word signal carries out Digital Signal Processing, and the assessment that analysis obtains microphone to be measured is carried out to the data signal after processing
Data.
It is preferred that, the microphone interface includes the digital microphone interface for being used to connect digital microphone, the control
Molding block provides pumping signal by the digital microphone interface to the microphone to be measured, receives the wheat to be measured
The data signal that gram wind is produced；
The signal conversion module includes connecting the digital microphone interface and the drive circuit of the control module,
The drive circuit is used to the data signal that the microphone to be measured is produced being converted to what the control module can recognize that
Data signal, and the pumping signal that the control module is provided is converted to the recognizable pumping signal of microphone to be measured.
It is preferred that, the microphone interface includes the simulation microphone interface for being used to connect simulation microphone, the wheat
Gram wind apparatus for evaluating passes through the simulation microphone interface and receives the analog signal that the microphone to be measured is produced；
The signal conversion module includes operational amplification circuit and analog-digital converter, and the simulation microphone interface is successively
It is connected through the operational amplification circuit and analog-digital converter with the control module.
It is preferred that, the microphone apparatus for evaluating also includes：
Memory, for storing voice data；
Power amplifier, for amplifying the audio signal generated according to voice data；
Audible device, for the sounding under the driving of the power amplifier.
It is preferred that, the memory is erasable by control module control, to change the voice data of its storage.
It is preferred that, the microphone apparatus for evaluating also includes communication interface, and the communication interface is used for and external equipment
Connection；
The control module receives the data that the external equipment is transmitted by the communication interface, and/or, it is described
Control module transmits data by the communication interface to the external equipment.
It is preferred that, the microphone apparatus for evaluating also includes the display device being connected with the control module, at least uses
In the assessment data for showing the microphone to be measured that the control module analysis is obtained, controlled by the control module described
The display content of display device.
It is preferred that, the microphone apparatus for evaluating also includes operating side, may be selected by the operation to the operating side
Or the evaluation profile of the switching microphone apparatus for evaluating, the setting that the control module is sent according to the operating side
Signal configures evaluation profile.
It is preferred that, the microphone apparatus for evaluating also includes power supply and Voltage stabilizing module, for being assessed for the microphone
Device is powered；
The power supply and Voltage stabilizing module include rechargeable battery.
Present invention also offers a kind of microphone appraisal procedure, using above-mentioned microphone apparatus for evaluating, appraisal procedure
Simply, efficiency high and highly versatile.
For up to this purpose, the present invention uses following technical scheme：
A kind of microphone appraisal procedure, using microphone apparatus for evaluating as described above, methods described includes：
Microphone to be measured is connected to the microphone interface；
The evaluation profile of the microphone apparatus for evaluating is configured by the control module；
It is estimated according to the evaluation profile, wherein the letter that the microphone apparatus for evaluating produces microphone to be measured
Number be converted to its recognizable data signal；
Digital Signal Processing is carried out to the data signal；
The assessment data that analysis obtains microphone to be measured are carried out to the data signal after Digital Signal Processing,
Wherein, the microphone interface and the evaluation profile match with the microphone to be measured.
It is preferred that, the microphone apparatus for evaluating also includes operating side, by the operation of operating side selection or
Switch the evaluation profile, the setting signal that the control module is sent according to the operating side configures the assessment mould
Formula.
It is preferred that, the microphone apparatus for evaluating also includes display device, the control module control display dress
Put display assessment result.
The beneficial effects of the invention are as follows：
The microphone apparatus for evaluating that the present invention is provided by signal conversion module, power supply module and control module it is integrated
Together, the voltage that power supply module configuration matches with microphone to be measured, control signal conversion are controlled by control module
The signal that microphone to be measured is produced is converted to the recognizable data signal of control module by module, and data signal is entered
Line number word signal processing and analyzing obtains sensitivity, power consumption, frequency response of microphone to be measured etc. and assesses data, nothing
Need external equipment to participate in can be achieved to treat the assessment for surveying microphone indices, reduce dependence to external equipment with
Difficulty is connected, easy to operate, cost is low, in addition, adjustment that can be to evaluation profile progress at any time by control module,
Assess efficiency high and suitable for the assessment of different types of microphone.
In microphone apparatus for evaluating be used for store voice data memory can be controlled by control module it is erasable, so as to
Flexibly change the voice datas such as frequency in memory, amplitude, waveform according to evaluation requirement.
Power supply and Voltage stabilizing module include rechargeable battery in microphone apparatus for evaluating, are being not connected to the situation of external power source
Under can also complete the assessment of microphone, further improve the convenience used, expand making for microphone apparatus for evaluating
Use scene.
Microphone apparatus for evaluating is additionally provided with display device, and the display device can be controlled to show by control module and commented
Estimate pattern, evaluation process, assess the information such as data so that user can more intuitively observe each of microphone to be measured
Item index.
Microphone apparatus for evaluating is additionally provided with operating side, and carrying out operation to operating side causes operating side to send setting signal,
Control module configures evaluation profile according to setting signal, so as to realize the selection or switching of evaluation profile.
The microphone appraisal procedure that the present invention is provided uses above-mentioned microphone apparatus for evaluating, simple and easy to apply, assesses mould
Formula can be adjusted at any time, assess efficiency high and suitable for the assessment of different types of microphone.
Brief description of the drawings
By description referring to the drawings to the embodiment of the present invention, above-mentioned and other purpose of the invention, feature
It will be apparent from advantage, in the accompanying drawings：
Fig. 1 is one of structural representation of microphone apparatus for evaluating that the specific embodiment of the invention is provided；
Fig. 2 is the two of the structural representation for the microphone apparatus for evaluating that the specific embodiment of the invention is provided；
Fig. 3 is that the microphone apparatus for evaluating that the specific embodiment of the invention is provided is estimated to digital microphone
Schematic diagram；
Fig. 4 is that the microphone apparatus for evaluating that the specific embodiment of the invention is provided is estimated to simulation microphone
Schematic diagram.
In figure, 1, digital microphone interface；2nd, microphone interface is simulated；3rd, signal conversion module；31st, drive
Dynamic circuit；32nd, operational amplification circuit；33rd, analog-digital converter；4th, power supply module；5th, control module；6th, connect
Ground terminal；7th, power supply and voltage stabilizing chip；8th, operating side；9th, memory；10th, power amplifier；11st, sounding is set
It is standby；12nd, communication interface；13rd, Function Extension mouthful；14th, display device；15th, microphone to be measured；16th, power supply
Interface；17th, USB chips.
Embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.
It is detailed to describe some specific detail sections hereafter in the detailed description of the present invention.To those skilled in the art
For the description of part without these details can also understand the present invention completely.In order to avoid obscuring the essence of the present invention,
Known method, process, flow, element do not have detailed narration.
Illustrate the embodiment of the microphone apparatus for evaluating of the present invention referring to Fig. 1 and Fig. 2.
The microphone apparatus for evaluating that the present invention is provided includes at least one microphone interface, signal conversion module 3, supplied
Electric module 4 and control module 5.Wherein, microphone to be measured accesses microphone apparatus for evaluating through microphone interface.Letter
Number modular converter 3 is connected between microphone interface and control module 5, for the signal for producing microphone to be measured
Be converted to the recognizable data signal of control module 5.Power supply module 4 is used to be microphone power to be measured, and it passes through
Power interface 16 (VDD) is microphone power.Control module 5 is used to control the output of power supply module 4 and wheat to be measured
The signal that microphone to be measured is produced is converted to it and can recognize that by the voltage of gram wind facies matching, control signal modular converter 3
Data signal, digital filtering is carried out to the data signal that signal conversion module 3 is changed, at the data signal such as decoding
Manage (DSP), and the data signal after processing is carried out to analyze the sensitivity for obtaining microphone to be measured, power consumption, frequency
Response, signal to noise ratio etc. assess data.
The microphone apparatus for evaluating that the present invention is provided is by signal conversion module 3, power supply module 4 and control module 5
Integrate, the voltage that the configuration of power supply module 4 matches with microphone to be measured, control are controlled by control module 5
The signal that microphone to be measured is produced is converted to the recognizable data signal of control module 5 by signal conversion module 3 processed,
And sensitivity, power consumption, the frequency response of Digital Signal Processing and analysis acquisition microphone to be measured are carried out to data signal
Deng data are assessed, participate in can be achieved to treat the assessment for surveying microphone indices without external equipment, reduction is external
The dependence of portion's equipment and connection difficulty, easy to operate, cost is low, in addition, can be to assessing mould by control module 5
Formula carries out adjustment at any time, assesses efficiency high and suitable for the assessment of different types of microphone.
Further, microphone interface includes the digital microphone interface 1 (DIO) for being used to connect digital microphone.
Microphone apparatus for evaluating provides pumping signal, required excitation letter by digital microphone interface 1 to microphone to be measured
Number include clock signal, track selecting signal etc., and microphone to be measured received by digital microphone interface 1 producing
The data signal such as DATA, its specific connected mode determines by the type of microphone to be measured.Signal conversion module 3
Including drive circuit 31, the data signal that drive circuit 31 is used to produce microphone to be measured is converted to control module 5
Recognizable data signal, and the pumping signal (clock signal, track selecting signal etc.) that control module 5 is provided
Be converted to the recognizable pumping signal of microphone to be measured.The one end of drive circuit 31 through digital microphone interface 1 with it is to be measured
Digital microphone connection, the other end is connected with control module 5.Specifically, drive circuit 31 drives digital microphone
Data signal between wind and control module 5, and realize level conversion so that digital microphone and control module 5
The signal transmitted between the two can be correctly recognized, is easy to control module 5 to carry out further Digital Signal Processing.
Digital microphone interface 1 can be one or multiple, drive circuit 31 and digital microphone interface
1 is correspondingly arranged.
Further, microphone interface can also include the simulation microphone interface 2 for being used to connect simulation microphone
(AIN), microphone apparatus for evaluating receives the analog signal that microphone to be measured is produced by simulating microphone interface 2.
What it is due to simulation microphone generation is that analog signal can be passed through control module, it is necessary to carry out Analog-digital Converter
5.Therefore, accordingly, signal conversion module 3 includes operational amplification circuit 32 and analog-digital converter 33, and computing is put
Big circuit 32 is used to the analog signal that simulation microphone is produced is amplified and filtered.Analog-digital converter 33 is used for
Analog signal after amplification is sampled, and is converted to data signal, its working condition is carried out by control module 5
Control.
Simulation microphone interface 2 is connected through operational amplification circuit 32 and analog-digital converter 33 with control module 5 successively.
The analog signal that simulation microphone to be assessed is produced turns after amplifying and filter through operational amplification circuit 32 into modulus
Parallel operation 33 is converted to the recognizable data signal of control module 5, is easy to control module 5 to carry out further numeral letter
Number processing.
It can also be one or multiple to simulate microphone interface 2, operational amplification circuit 32 and analog-to-digital conversion
Device 33 is correspondingly arranged with simulation microphone interface 2.
Microphone apparatus for evaluating also includes earth terminal 6 (GND).
Further, microphone apparatus for evaluating also includes audible device 11 and the memory being connected with control module 5
9.Control module 5 is connected through power amplifier 10 with audible device 11, and sounding is driven by power amplifier 10
The sounding of equipment 11, the working condition of power amplifier 10 is controlled by control module 5.Audible device 11 can be with
But it is loudspeaker to be not limited to.Memory 9 is used to store the voice data needed for audible device 11 is played, such as specific frequency
Rate, specific amplitude, the data of specific waveforms.Memory 9 is preferred to use non-volatile, erasable memory,
Such as FLASH, SD card etc., for preserving the voice data needed for audible device is played, passes through the wiping to memory 9
Write, can flexibly change voice data as needed, the write-in and reading of data are controlled by control module 5.
Further, microphone apparatus for evaluating also includes power supply and Voltage stabilizing module, is each module for power supply of apparatus for evaluating.
It is preferred that, power supply and Voltage stabilizing module are power supply and voltage stabilizing chip 7, and it includes rechargeable battery, can with outside
Power supply is connected and powered in the case of not being connected two kinds with external power source for apparatus for evaluating.When connecting external power source, outside
Portion's power supply charges to rechargeable battery.The setting of rechargeable battery enables to microphone apparatus for evaluating outside being not connected to
Also the assessment of microphone can be completed in the case of portion's power supply, the convenience used is further improved, expands and use field
Scape.
Further, microphone apparatus for evaluating also includes communication interface 12, and communication interface 12 is used for and external equipment
Connection, control module 5 receives the data that external equipment is transmitted by communication interface 12, and/or, control module 5
By communication interface 12 to external equipment transmission data.For example, communication interface 12 is connected with computer, computer
Can be through communication interface 12 to the loading program of control module 5, and it is loaded into voice data to memory 9, it is possible to understand that
It is that computer is served only for being loaded into program and voice data using front microphone apparatus for evaluating, is assessed in microphone
Participated in during the normal use of device without computer.For another example communication interface 12 is connected with outside display,
The information such as evaluation profile, evaluation process, assessment result are shown by display.It is preferred that, communication interface 12 includes
USB chips 17, external equipment can be connected through USB chips 17 with control module 5.
Further, microphone apparatus for evaluating also includes the display device 14 being connected with control module 5, is at least used for
The assessment data for the microphone to be measured that the analysis of display control module 5 is obtained, naturally it is also possible to show evaluation profile, comment
Estimate the contents such as process, the display content of display device 14 is controlled by control module 5, can with but be not limited to include number
Word, oscillogram etc..
Further, microphone apparatus for evaluating also includes operating side 8, by the way that the operation of operating side 8 may be selected or
The evaluation profile of switch microphone apparatus for evaluating.The specific constructive form of operating side 8 is not limited, and can is knob, be pressed
Button etc., furthermore it is also possible to which display device 14 is set into touch-screen, sets virtual key on the touchscreen.User
Evaluation profile is set in operating side 8, setting signal is transmitted to control module 5, and control module 5 is commented according to setting
Estimate Schema control microphone apparatus for evaluating to be estimated microphone to be measured.
To sum up, control module 5 is controlled as follows：
1st, the work of each module in microphone apparatus for evaluating is dispatched in control；
2nd, the supply voltage of power supply module 4 is controlled；
3rd, for the pumping signal needed for digital microphone to be assessed is provided；
4th, the microphone signal collected (when microphone to be measured is digital microphone, is referred to by drive circuit 31
Handle the output signal obtained；When microphone to be measured for simulation microphone when, refer to through operational amplification circuit 32 amplification and
Filtering, the data signal after sampling and change by analog-digital converter 33) Digital Signal Processing (DSP) is carried out, and
The assessment data that analysis obtains microphone to be measured are carried out to the data signal after processing；
5th, the setting instruction that identification operating side 8 is sent, and according to the assessment for setting instruction to match somebody with somebody microphone apparatus for evaluating
Pattern；
6th, control display device 14 output assessment result.
In a preferred embodiment, control module 5 uses fpga chip, FPGA (Field-
Programmable Gate Array), i.e. field programmable gate array, it can be compiled in PAL, GAL, CPLD etc.
The product further developed on the basis of journey device.FPGA employs logical cell array LCA (Logic Cell
Array) such a concept, inside include configurable logic blocks CLB (Configurable Logic Block),
Input/output module IOB (Input Output Block) and three parts of interconnector (Interconnect).
Field programmable gate array (FPGA) is programming device, with conventional logic circuit and gate array (such as PAL, GAL
And CPLD devices) compare, FPGA has different structures.FPGA using small-sized look-up table (16 × 1RAM) come
Combinational logic is realized, each look-up table is connected to the input of a d type flip flop, and trigger drives other to patrol again
Volume circuit or driving I/O, can not only combination logic function be realized but also can realize the base of sequential logic function by thus constituting
This logic unit module, these intermodules are interconnected or are connected to I/O modules using metal connecting line.FPGA's patrols
Collect and load programming data to realize by internally static storage cell, the value of storage in a memory cell is determined
Determine between the logic function and each module of logic unit or the connecting mode between module and I/O, and finally determined
Function achieved by FPGA, FPGA allows unlimited number of programming.It is as application specific integrated circuit (ASIC)
A kind of semi-custom circuit in field and occur, both solved the deficiency of custom circuit, original compile overcome again
The limited shortcoming of journey device gate circuit number.
In addition, in a preferred embodiment, as shown in Fig. 2 microphone apparatus for evaluating also includes at least one work(
Mouth 13 can be extended, its form can with but be not limited to be the I/O pin drawn by control module 5, it is or outside
Connector such as optical fiber socket, is controlled by control module 5., can be in these work(by the programming to control module 5
Mouth 13 can be extended and realize the data-transformation facility customized, the data for the apparatus for evaluating that the present invention is provided are supplied to more
The expensive, tester (such as Audio Precision) of specialty or other conventional test methodologies are analyzed,
So as to improve test compatibility, or assess of the invention with other testers, the result difference of method, understanding property
Valency ratio.
The appraisal procedure of inventive microphone apparatus for evaluating is further illustrated below, comprises the following steps：
Step A, preparation, computer are loaded into program by communication interface 12 to control module 5, and to storage
Voice data is loaded into device 9.It is understood that during the use of device, only when evaluation requirement changes
Become and when existing evaluation profile can not meet the situation of demand in control module 5, just need to be loaded into new journey again
Sequence or data, otherwise apparatus for evaluating it is once download after the completion of can depart from computer work independently complete assessment task.
Down operation is controlled by computer.
Step B, microphone 15 to be measured is connected on the corresponding interface of microphone apparatus for evaluating.
Step C, user select corresponding evaluation profile according to the type and evaluation requirement of microphone to be measured in operating side,
Setting signal is transmitted to control module 5 so that apparatus for evaluating enters corresponding evaluation profile, and microphone to be measured is entered
Row is assessed, and is calculated sensitivity, power consumption, frequency response, signal to noise ratio of microphone 15 to be measured etc. and is assessed data, and
Assessment result is shown on a display device 14 in forms such as oscillogram, numerals.It is understood that not interrupting
In the case of evaluation process, the real-time switching of pattern can be estimated by the operation to operating side.
The embodiment of two specific detection methods is given below.
As shown in figure 3, when microphone 15 to be measured is simulation microphone, simulation microphone being connected into microphone and commented
Estimate the power interface 16, simulation microphone interface 2 and earth terminal 6 of device, analog-digital converter 33 is operated in 96kHz
Sample frequency, is sampled with 16-bit sampling bit wides to the output for simulating microphone, the output of power supply module 4 2.0V
Voltage, memory 9 is adopted with 48kbps rate output data, power amplifier 10 with -20dB gains, 96kHz
The sample frequency driving such as loudspeaker of audible device 11 send 1kHz, 94dB SPL sinusoidal sound, 5 pairs of control module
The data signal that collects carries out 2 times of down-sampled and meter sensitivities, and result of calculation is with time domain waveform and/or numeral
Form is shown on the display apparatus.
As shown in figure 4, when microphone 15 to be measured is numeral PDM microphones, digital PDM microphones are connected to power supply
Interface 16, digital microphone interface 1 and earth terminal 6, power supply module 4 output 1.5V voltages, memory 9 with
56kbps rate output data, power amplifier 10 is with -20dB gains, 128kHz sample frequencys driving sounding
Such as loudspeaker of equipment 11 send 3kHz, and 90dB SPL square wave sound, control module 5 receives drive circuit 31 and driven
Dynamic DATA signal, by PDM decoding and 2 times it is down-sampled after, calculated frequency response and power consumption, result of calculation with
The form of frequency-domain waveform and/or numeral is shown on the display apparatus.
In addition, it should be understood by one skilled in the art that provided herein accompanying drawing be provided to explanation purpose,
And what accompanying drawing was not necessarily drawn to scale.
It will also be appreciated that example embodiment is provided, so that the disclosure is comprehensive, and its scope is abundant
Convey to those skilled in the art.Many specific details (such as examples of particular elements, apparatus and method) by
Go out to provide thorough understanding of the disclosure.It will be apparent to one skilled in the art that specific detail need not be used, show
Example embodiment can be carried out in many different forms, and example embodiment is understood not to limit the disclosure
Scope.In some example embodiments, well-known device structure and widely-known technique be not detailed
Description.
When an element or layer be mentioned as another element or layer " on ", " being engaged to ", " being connected to " or " quilt
Be connected to " another element or layer when, its can directly on another element or layer, by directly engage, connect or couple
To another element or layer, or intermediary element or layer may be present.By contrast, when an element is mentioned as " direct "
Another element or layer " on ", " being bonded directly to ", " being directly coupled to " or " being directly coupled to "
When another element or layer, intermediary element or layer can be not present.Other words for describing relation between element should
Explained in a similar manner (for example, " between " and " directly between ", " neighbouring " and " being directly adjacent to "
Deng).As used herein, term "and/or" includes any or complete in the Listed Items of one or more associations
Combine in portion.
Although term first, second, third, etc. can be used for describing each element, part, region, layer herein
And/or section, but these elements, part, region, layer and/or section should not be limited by these terms.This
A little terms can be only used for an element, part, region, layer or section and another element, region, layer or section
Distinguish.Such as " first ", the term of " second " and other numerical value terms do not mean that secondary when used herein
Sequence or order, unless clearly indicated by the context.Thus, the first element discussed below, part, region, layer or
Section is referred to alternatively as the second element, part, region, layer or section, without departing from the teaching of example embodiment.This
Outside, in the description of the invention, unless otherwise indicated, " multiple " are meant that two or more.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
Speech, the present invention can have various changes and change.All any modifications made within spirit and principles of the present invention,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (12)
1. a kind of microphone apparatus for evaluating, it is characterised in that including at least one microphone interface, signal modulus of conversion
Block, power supply module and control module, wherein,
At least one microphone interface, for microphone to be measured to be accessed into the microphone apparatus for evaluating；
Signal conversion module, the signal for microphone to be measured to be produced is converted to the recognizable number of the control module
Word signal；
Power supply module, for for microphone power to be measured；
Control module, for the voltage for controlling the power supply module output to match with the microphone to be measured, control
The signal that microphone to be measured is produced is converted to its recognizable data signal by the signal conversion module, to the number
Word signal carries out Digital Signal Processing, and the assessment that analysis obtains microphone to be measured is carried out to the data signal after processing
Data.
2. microphone apparatus for evaluating according to claim 1, it is characterised in that the microphone interface includes
Digital microphone interface for connecting digital microphone, the control module by the digital microphone interface to
The microphone to be measured provides pumping signal, receives the data signal that the microphone to be measured is produced；
The signal conversion module includes connecting the digital microphone interface and the drive circuit of the control module,
The drive circuit is used to the data signal that the microphone to be measured is produced being converted to what the control module can recognize that
Data signal, and the pumping signal that the control module is provided is converted to the recognizable pumping signal of microphone to be measured.
3. microphone apparatus for evaluating according to claim 1, it is characterised in that the microphone interface includes
Simulation microphone interface for connecting simulation microphone, the microphone apparatus for evaluating passes through the simulation microphone
The analog signal that microphone to be measured described in interface is produced；
The signal conversion module includes operational amplification circuit and analog-digital converter, and the simulation microphone interface is successively
It is connected through the operational amplification circuit and analog-digital converter with the control module.
4. microphone apparatus for evaluating according to claim 1, it is characterised in that the microphone apparatus for evaluating
Also include：
Memory, for storing voice data；
Power amplifier, for amplifying the audio signal generated according to voice data；
Audible device, for the sounding under the driving of the power amplifier.
5. microphone apparatus for evaluating according to claim 4, it is characterised in that the memory is by the control
The control of molding block is erasable, to change the voice data of its storage.
6. the microphone apparatus for evaluating according to any one of claim 1 to 5, it is characterised in that the Mike
Wind apparatus for evaluating also includes communication interface, and the communication interface is used to be connected with external equipment；
The control module receives the data that the external equipment is transmitted by the communication interface, and/or, the control
Molding block transmits data by the communication interface to the external equipment.
7. the microphone apparatus for evaluating according to any one of claim 1 to 5, it is characterised in that the Mike
Wind apparatus for evaluating also includes the display device being connected with the control module, at least for showing the control module point
The assessment data of the microphone to be measured obtained are analysed, the display content of the display device is controlled by the control module.
8. the microphone apparatus for evaluating according to any one of claim 1 to 5, it is characterised in that the Mike
Wind apparatus for evaluating also includes operating side, may be selected by the operation to the operating side or switch the microphone to assess
The evaluation profile of device, the setting signal that the control module is sent according to the operating side configures evaluation profile.
9. the microphone apparatus for evaluating according to any one of claim 1 to 5, it is characterised in that the Mike
Wind apparatus for evaluating also includes power supply and Voltage stabilizing module, for being powered for the microphone apparatus for evaluating；
The power supply and Voltage stabilizing module include rechargeable battery.
10. a kind of microphone appraisal procedure, it is characterised in that using as described in any one of claim 1 to 9
Microphone apparatus for evaluating, methods described includes：
Microphone to be measured is connected to the microphone interface；
The evaluation profile of the microphone apparatus for evaluating is configured by the control module；
It is estimated according to the evaluation profile, wherein the letter that the microphone apparatus for evaluating produces microphone to be measured
Number be converted to its recognizable data signal；
Digital Signal Processing is carried out to the data signal；
The assessment data that analysis obtains microphone to be measured are carried out to the data signal after Digital Signal Processing,
Wherein, the microphone interface and the evaluation profile match with the microphone to be measured.
11. microphone appraisal procedure according to claim 10, it is characterised in that the microphone assesses dress
Putting also includes operating side, and the evaluation profile, the control mould are selected or switch by the operation to the operating side
The setting signal that root tuber is sent according to the operating side configures the evaluation profile.
12. the microphone appraisal procedure according to claim 10 or 11, it is characterised in that the microphone
Apparatus for evaluating also includes display device, and the control module controls the display device to show assessment result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153984.6A CN107205205A (en) | 2016-03-17 | 2016-03-17 | Microphone apparatus for evaluating and appraisal procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610153984.6A CN107205205A (en) | 2016-03-17 | 2016-03-17 | Microphone apparatus for evaluating and appraisal procedure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265052A (en) * | 2019-06-24 | 2019-09-20 | 秒针信息技术有限公司 | The signal-to-noise ratio of radio equipment determines method, apparatus, storage medium and electronic device |
| CN110958556A (en) * | 2019-11-29 | 2020-04-03 | 歌尔股份有限公司 | System and method for testing microphone performance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089641A (en) * | 2007-07-12 | 2007-12-19 | 北京中星微电子有限公司 | Method system for implementing investigating audio-frequency equipment and audio-frequency equipment |
| CN101316460A (en) * | 2007-05-29 | 2008-12-03 | 东莞泉声电子有限公司 | Tester for digital acoustic-electric transducer |
| CN101621728A (en) * | 2009-06-25 | 2010-01-06 | 北京卓锐微技术有限公司 | Method and device for calibrating sensitivity of microphone |
| JP2010041638A (en) * | 2008-08-08 | 2010-02-18 | Panasonic Corp | Examination apparatus for microphone device |
| CN101729969A (en) * | 2008-10-27 | 2010-06-09 | 纬创资通股份有限公司 | Method and system for testing microphone of electronic device |
| US20120155661A1 (en) * | 2010-12-21 | 2012-06-21 | Hon Hai Precision Industry Co., Ltd. | Electronic device and method for testing an audio module |
-
2016
- 2016-03-17 CN CN201610153984.6A patent/CN107205205A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316460A (en) * | 2007-05-29 | 2008-12-03 | 东莞泉声电子有限公司 | Tester for digital acoustic-electric transducer |
| CN101089641A (en) * | 2007-07-12 | 2007-12-19 | 北京中星微电子有限公司 | Method system for implementing investigating audio-frequency equipment and audio-frequency equipment |
| JP2010041638A (en) * | 2008-08-08 | 2010-02-18 | Panasonic Corp | Examination apparatus for microphone device |
| CN101729969A (en) * | 2008-10-27 | 2010-06-09 | 纬创资通股份有限公司 | Method and system for testing microphone of electronic device |
| CN101621728A (en) * | 2009-06-25 | 2010-01-06 | 北京卓锐微技术有限公司 | Method and device for calibrating sensitivity of microphone |
| US20120155661A1 (en) * | 2010-12-21 | 2012-06-21 | Hon Hai Precision Industry Co., Ltd. | Electronic device and method for testing an audio module |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265052A (en) * | 2019-06-24 | 2019-09-20 | 秒针信息技术有限公司 | The signal-to-noise ratio of radio equipment determines method, apparatus, storage medium and electronic device |
| CN110265052B (en) * | 2019-06-24 | 2022-06-10 | 秒针信息技术有限公司 | Signal-to-noise ratio determining method and device for radio equipment, storage medium and electronic device |
| CN110958556A (en) * | 2019-11-29 | 2020-04-03 | 歌尔股份有限公司 | System and method for testing microphone performance |
| CN110958556B (en) * | 2019-11-29 | 2021-04-30 | 潍坊歌尔微电子有限公司 | System and method for testing microphone performance |
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