CN103179495B - The ear microphone of mobile terminal and the audio testing method of receiver and system - Google Patents

The ear microphone of mobile terminal and the audio testing method of receiver and system Download PDF

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CN103179495B
CN103179495B CN201110430487.3A CN201110430487A CN103179495B CN 103179495 B CN103179495 B CN 103179495B CN 201110430487 A CN201110430487 A CN 201110430487A CN 103179495 B CN103179495 B CN 103179495B
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audio
audio signal
mobile terminal
test
frequency
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CN103179495A (en
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贾占杰
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BYD Co Ltd
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BYD Co Ltd
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Abstract

The invention discloses the ear microphone of a kind of mobile terminal and the audio testing method of receiver, comprise the steps: that test audio signal is sent to mobile terminal by measuring microphone earphone by audio test device, and believed by testing audio described in the ear microphone interface of described mobile terminal, described mobile terminal generates audio signal according to described test audio signal, and is play described audio signal by the receiver of described mobile terminal;Described audio test device receives the described audio signal that described mobile terminal generates;And the voice-frequency channel of described mobile terminal tested by described audio test device according to described audio signal and described test audio signal.The invention also discloses the ear microphone of a kind of mobile terminal and the audio test system of receiver.The present invention can realize the input channel of the ear microphone to mobile terminal and the test of the output channel of receiver, and the testing time is short and testing cost is low.

Description

The ear microphone of mobile terminal and the audio testing method of receiver and system
Technical field
The present invention relates to audio-frequency test technical field, particularly to ear microphone and the sound of receiver of a kind of mobile terminal Frequency test system and audio testing method.
Background technology
Now, mobile terminal has had become as the necessary of people's daily life.Give birth on a large scale at modernization mobile terminal In product, in order to ensure the audio performance of product, audio-frequency test is necessary link in production test.Wherein, the big rule of mobile terminal The main test purpose of the audio-frequency test in mould production is for making quality.Wherein, audio-frequency test includes the paster matter detecting mainboard Amount and the assembling quality of detection all parts.
The method that traditional mobile terminal large-scale production audio frequency is surveyed includes following four:
(1) human subjective's test of terminal speech winding.Path is used by terminal software analog subscriber.This test side Method shortcoming is that Stability and veracity is poor.Owing to artificial test is subjective judgment, and judgement itself there is no fixed standard in, Therefore the standard tested may vary with each individual.Further, artificial measuring stability is poor, the fatigue that long mechanical action brings Sense, the rotation of changing shifts all can cause the instability of test.
(2) test of the voice pathway under signaling call pattern.Setting up signaling call by terminal comprehensive tester, simulation is real Call off the net, and realized audio-frequency test by audio-frequency generator and audio analyzer.The shortcoming of this method of testing is to survey More and test the path of test instrument is the most complex, causes testing time the most long testing cost high.
(3) recording of terminal audio frequency path or playback test.The recording of each voice-frequency channel independence is realized by terminal software Or playback, and realized the automatic test of audio frequency by audio-frequency test equipment.The shortcoming of this method of testing is to split Path makes number of passages be multiplied, thus adds testing cost, it is impossible to carry out real-time testing.
(4) the terminal speech loopback test that band postpones.Set up, by terminal software, the language path that user uses, and be sound The realization of frequency test, is necessarily postponed path.The shortcoming of this method of testing is to add delay, when adding test Between, add testing cost, it is impossible to carry out real-time testing.
Additionally, in the audio-frequency test of the ear microphone of traditional mobile terminal and receiver, need multiple tone signals Being tested to determine effective range scope, the testing time is longer.Further, test instrunment is more, needs to use simulation simultaneously Artificial ear and simulation artificial mouth, cause two sound sources to interfere with each other, and measuring accuracy is low.And test instrunment more also causing produces Added cost, is unfavorable for large-scale production.
Summary of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technological deficiency.
To this end, the first of the present invention purpose is that the audio frequency providing the ear microphone of a kind of mobile terminal and receiver is surveyed Method for testing, the method can realize the input channel of the ear microphone to mobile terminal and the test of the output channel of receiver. Second object of the present invention is the audio test system of ear microphone and the receiver providing a kind of mobile terminal.
For achieving the above object, the embodiment of first aspect present invention provide a kind of mobile terminal ear microphone and The audio testing method of receiver, comprises the steps: that audio test device is by measuring microphone earphone by test audio signal It is sent to mobile terminal, and is believed by testing audio described in the ear microphone interface of described mobile terminal, described mobile whole Hold and generate audio signal according to described test audio signal, and play described audio signal by the receiver of described mobile terminal;Institute State audio test device and receive the described audio signal that described mobile terminal generates;And described audio test device is according to described The voice-frequency channel of described mobile terminal is tested by audio signal and described test audio signal.
The ear microphone of mobile terminal according to embodiments of the present invention and the audio testing method of receiver, it is possible to achieve right The input channel of the ear microphone of mobile terminal and the test of the output channel of receiver, and use acoustoelectric signal intersection winding Method carry out audio frequency winding frequency sweep in real time, thus decrease unnecessary delay, shorten the testing time.Additionally, the present invention The test instrunment used is less, thus reduces testing cost.
The embodiment of second aspect present invention provides the ear microphone of a kind of mobile terminal and the audio-frequency test of receiver System, including: audio test device and measurement mike, described audio test device is used for generating test audio signal and by institute State test audio signal to send to described mobile terminal, and according to the audio signal received and described test audio signal pair The voice-frequency channel of described mobile terminal is tested, and wherein, described audio signal is that described mobile terminal is according to described mobile whole The ear microphone interface of end to test audio signal be converted to, and entered by the receiver of described mobile terminal Row is play;Described measurement mike is for receiving the described mobile audio signal sent, and sends described audio signal to institute State audio test device.
The ear microphone of mobile terminal according to embodiments of the present invention and the audio test system of receiver, it is possible to achieve right The input channel of the ear microphone of mobile terminal and the test of the output channel of receiver, and use acoustoelectric signal intersection winding Method carry out audio frequency winding frequency sweep in real time, thus decrease unnecessary delay, shorten the testing time.Additionally, the present invention The test instrunment used is less, thus reduces testing cost.
Aspect and advantage that the present invention adds will part be given in the following description, and part will become from the following description Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or that add aspect and advantage will become from the following description of the accompanying drawings of embodiments Substantially with easy to understand, wherein:
Fig. 1 is the flow process of the audio testing method of the ear microphone of the mobile terminal according to the embodiment of the present invention and receiver Block diagram;
Fig. 2 is ear microphone and the audio test system of receiver of the mobile terminal according to one embodiment of the invention Schematic diagram;
Fig. 3 is the schematic diagram of the audio test device according to the embodiment of the present invention;And
Fig. 4 is ear microphone and the audio test system of receiver of the mobile terminal according to another embodiment of the present invention Schematic diagram.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
With reference to explained below and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention.Describe at these With in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, represent the enforcement implementing the present invention Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary, the present invention All changes, amendment and equivalent in the range of spirit that embodiment includes falling into attached claims and intension.
Ear microphone and the audio-frequency test of receiver below with reference to Fig. 1 description mobile terminal according to embodiments of the present invention Method.Wherein, mobile terminal includes the stereophone interface of receiver, speaker, mike and band mike.
As it is shown in figure 1, the ear microphone of the mobile terminal of embodiment of the present invention offer and the audio testing method of receiver, Comprise the steps:
Step S101, test audio signal is sent to mobile terminal by measuring microphone earphone by audio test device, And by the ear microphone interface test audio signal of mobile terminal, mobile terminal generates audio frequency according to test audio signal Signal, and by the receiver playing audio signal of mobile terminal.
Audio test device generates test audio signal.Wherein, test audio signal for have multi-frequency sequence and several The audio signal of value sequence.Then, this test audio signal is exported to measuring microphone earphone by audio test device, by measuring Microphone earphone is sent to mobile terminal further by wire.Wherein, plug and the mobile terminal of microphone earphone are measured Ear microphone interface is suitable, and is connected with audio test device.Thus, the test audio signal that audio test device generates Send to mobile terminal by measuring the ear microphone interface of microphone earphone plug and mobile terminal.Wherein, audio-frequency test Device is the audio-frequency test instrument supporting multichannel input and output.
In an embodiment of the present invention, the plug of mobile terminal and measurement microphone earphone is arranged at audio frequency shielded box In.In the test audio signal generated by audio test device is input to audio frequency shielded box as electronic signals and export to shifting In dynamic terminal.
In one embodiment of the invention, the stereophone that microphone earphone is four joint band mikes is measured.
The test audio signal received is passed through internal voice modulation demodulator circuit according to testing audio by mobile terminal Signal generates audio signal, and audio signal loops back to the receiver of mobile terminal further.The receiver of mobile terminal is play should Audio signal, thus test audio signal is converted to sound wave, sound wave space in audio frequency shielded box is propagated.
In audio frequency shielded box, it is additionally provided with measurement mike, and measurement mike is positioned close to the receiver of mobile terminal Position.Utilize and measure mike and gather the audio signal that receiver is play, and audio signal will be collected be sent to audio-frequency test Device.
In one embodiment of the invention, mike is measured for simulation artificial ear.
In yet another embodiment of the present invention, the audio signal measuring mike output fill in output to audio-frequency test Before putting, front-located power amplifier device can be first passed through and be amplified.Audio signal after front-located power amplifier device will amplify is transported to sound Frequency test device.Wherein, mike docking is measured to front-located power amplifier device.Audio signal is amplified follow-up number According to analysis, and it is difficult to by noise jamming.
Step S102, audio test device receives the audio signal that mobile terminal generates according to test sound wave.
Audio test device receives mobile terminal according to the audio signal generated by measuring mike.
Step S103, the voice-frequency channel of mobile terminal is entered by audio test device according to audio signal and test audio signal Row test.
The audio test device audio signal to receiving carries out data sampling, and data after sampling are carried out FFT (Fast Fourier Transformation, fast Fourier) conversion, so that it is determined that the frequency of audio signal is mobile terminal playing Frequency.The difference of the frequency of the audio signal determined with the frequency of test audio signal is compared with the scope preset, with The input channel of ear microphone and the output channel of receiver are tested.
If the frequency of audio signal is positioned within the scope of default with the difference of the frequency of test audio signal, then judge Mobile terminal is tested by voice-frequency channel.If the frequency of audio signal is positioned at default with the difference of the frequency of test audio signal Scope outside, then judge that the voice-frequency channel of mobile terminal is obstructed, i.e. the input channel of mobile terminal earphone mike and receiver Output channel on the paster quality of device is problematic or the earphone jack that assembles and receiver fault.Judge loudness and mistake simultaneously Be really no within the acceptable range.If the loudness of audio signal is the least, then assembly failure is described or has foreign matters from being blocked Receiver.If the distortion of audio signal is too big, illustrate that harmonic signal is the loudest.Call has whister-type noise or cacophonia, needs Fault mobile phone is made a concrete analysis of.
By above-mentioned test, can to the output channel of the input channel of the ear microphone of mobile terminal and receiver with Under several aspects test:
(1) the paster quality of device on detection above-mentioned two path;
(2) quality of mike path in test earphone microphone jack;
(3) monomer mass of loudspeaker in detection receiver;
(4) assembling quality of each assembly in detection receiver sound chamber.
The ear microphone of mobile terminal according to embodiments of the present invention and receiver audio testing method, it is possible to achieve to shifting The input channel of the ear microphone of dynamic terminal and the test of the output channel of receiver.The input channel of ear microphone and receiver Output channel by the acoustical signal of audio frequency and signal of telecommunication combination cross-reference, it is to avoid the generation of crosstalk.And use acoustoelectric signal The method of intersection winding carries out audio frequency winding frequency sweep in real time, thus decreases unnecessary delay, shortens the testing time.This Outward, the test instrunment that the present invention uses is less, thus has higher stability, and measuring accuracy is higher, testing cost is low, suitable Produce for large-scale.
Ear microphone and the sound of receiver below with reference to Fig. 2 to Fig. 4 description mobile terminal according to embodiments of the present invention Frequency test system 200.
The ear microphone of mobile terminal and the audio test system 200 of receiver that the embodiment of the present invention provides include audio frequency Test device 210 and measurement mike 220.Audio test device 210 is used for generating test audio signal and being believed by testing audio Number it is sent to mobile terminal 230, and according to the audio signal received and test audio signal, the audio frequency of mobile terminal 230 is led to Road is tested, and wherein, audio signal is that mobile terminal 230 arrives according to the ear microphone interface of mobile terminal 230 Test audio signal is converted to, and is played out by the receiver of mobile terminal 230.Measure mike 220 to be used for connecing Receive the audio signal of mobile terminal 230 transmission and audio signal is sent to audio test device 210.
As it is shown on figure 3, the audio test system 200 of the ear microphone of the mobile terminal of the embodiment of the present invention and receiver is also Including measuring microphone earphone 260, for receiving the test audio signal from audio test device, and by test audio signal The ear microphone interface of mobile terminal 230 it is further transmitted to by wire.Wherein, the plug of microphone earphone 260 is measured Suitable with the ear microphone interface of mobile terminal 230, and be connected with audio test device 210.Thus, audio test device 210 test audio signal generated are sent out by measuring the ear microphone interface of microphone earphone 260 plug and mobile terminal 230 Deliver to mobile terminal 230.Wherein, audio test device 210 is the audio-frequency test instrument supporting multichannel input and output.
In one embodiment of the invention, the stereophone that microphone earphone 260 is four joint band mikes is measured.
As shown in Figure 4, audio test device 210 includes generation module 211, sending module 212, receiver module 213, frequency Generation module 214 and judge module 215.
Specifically, generation module 211 is used for generating test audio signal, then by sending module 212 by this testing audio Signal is sent to measure microphone earphone 260.Measure microphone earphone 260 and further this test audio signal is sent to mobile Terminal 230.
In one embodiment of the invention, the ear microphone of the mobile terminal of the embodiment of the present invention and the audio frequency of receiver Test system 200 also includes audio frequency shielded box 250.In audio frequency shielded box 250, accommodate mobile terminal 230, measure mike Earphone 260 and measurement mike 220.The test audio signal generated by audio test device 210 inputs as electronic signals And output interior to audio frequency shielded box 250 is arrived in mobile terminal 230.
The test audio signal received is passed through internal voice modulation demodulator circuit according to test tone by mobile terminal 230 Frequently signal generates audio signal, and audio signal loops back to the receiver of mobile terminal 230 further.Listening of mobile terminal 230 This audio signal play by cylinder, thus test audio signal is converted to sound wave, and sound wave space in audio frequency shielded box 250 is carried out Propagate.
Measure the position that mike 220 is positioned close to the receiver of mobile terminal 230, be used for gathering mobile terminal 230 raw The audio signal become, and audio signal will be collected be sent to audio test device 210.
In one embodiment of the invention, the ear microphone of the mobile terminal of the embodiment of the present invention and the audio frequency of receiver Test system 200 also includes front-located power amplifier device 240, is arranged on audio test device 210 and measures between mike 220, using In to measure mike 220 output audio signal be first amplified, then will amplify after audio signal be transported to audio-frequency test Device 210.Wherein, mike 220 docking is measured to front-located power amplifier device 240.Utilize front-located power amplifier device 240 to audio signal It is amplified follow-up data analysis, and is difficult to by noise jamming.
In one embodiment of the invention, measuring mike 220 can be simulation artificial ear.
Receiver module 213 receives, by measuring mike 220, the audio signal that mobile terminal 230 generates.Frequency generates mould The block 214 audio signal to receiving carries out data sampling, and data after sampling are carried out FFT, so that it is determined that audio frequency letter Number frequency be mobile terminal 230 play frequency.The frequency of the audio signal determined is believed by judge module 215 with testing audio Number frequency difference with preset scope compare, so that the input channel of ear microphone and the output channel of receiver are entered Row test.
If the frequency of audio signal is positioned within the scope of default with the difference of the frequency of test audio signal, then judge Module 215 judges that mobile terminal 230 is tested by voice-frequency channel.If the frequency of audio signal and the frequency of test audio signal Difference be positioned at outside default scope, then judge module 215 judges that the voice-frequency channel of mobile terminal is obstructed, i.e. ear microphone Input channel and receiver output channel on the paster quality of device is problematic or the earphone jack that assembles and receiver fault.
Judge module 215 is additionally operable to judge loudness and distortion the most within the acceptable range.If audio signal Loudness is the least, then assembly failure is described or has foreign matters from being blocked receiver.If the distortion of audio signal is too big, harmonic wave is described Signal is the loudest.Call has whister-type noise or cacophonia, needs fault mobile phone is made a concrete analysis of.
The ear microphone of mobile terminal according to embodiments of the present invention and the audio test system of receiver, it is possible to achieve right The input channel of the ear microphone of mobile terminal and the test of the output channel of receiver.The input channel of ear microphone and listening Acoustical signal and the signal of telecommunication of audio frequency are combined cross-reference by the output channel of cylinder, it is to avoid the generation of crosstalk.And use acoustic-electric to believe The method of winding of number intersecting carries out audio frequency winding frequency sweep in real time, thus decreases unnecessary delay, shortens the testing time.This Outward, the test instrunment that the present invention uses is less, thus has higher stability, and measuring accuracy is higher, testing cost is low, suitable Produce for large-scale.
In flow chart or at this, any process described otherwise above or method description are construed as, and expression includes One or more is for realizing the module of code, fragment or the portion of the executable instruction of the step of specific logical function or process Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not by shown or discuss suitable Sequence, including according to involved function by basic mode simultaneously or in the opposite order, performs function, and this should be by the present invention Embodiment person of ordinary skill in the field understood.
Represent in flow charts or the logic described otherwise above at this and/or step, for example, it is possible to be considered as to use In the sequencing list of the executable instruction realizing logic function, may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (system such as computer based system, including processor or other can hold from instruction Row system, device or equipment instruction fetch also perform the system instructed) use, or combine these instruction execution systems, device or set Standby and use.For the purpose of this specification, " computer-readable medium " can be any can to comprise, store, communicate, propagate or pass Defeated program is for instruction execution system, device or equipment or combines these instruction execution systems, device or equipment and the dress that uses Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following: have the electricity of one or more wiring Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read only memory (ROM), erasable read only memory (EPROM or flash memory), the fiber device edited, and portable optic disk is read-only deposits Reservoir (CDROM).It addition, computer-readable medium can even is that and can print the paper of described program thereon or other are suitable Medium, because then can carry out editing, interpreting or if desired with it such as by paper or other media are carried out optical scanning His suitable method is processed to electronically obtain described program, is then stored in computer storage.
Should be appreciated that each several part of the present invention can realize by hardware, software, firmware or combinations thereof.Above-mentioned In embodiment, the software that multiple steps or method in memory and can be performed by suitable instruction execution system with storage Or firmware realizes.Such as, if realized with hardware, with the most the same, available well known in the art under Any one or their combination in row technology realize: have the logic gates for data signal realizes logic function Discrete logic, there is the special IC of suitable combination logic gate circuit, programmable gate array (PGA), on-the-spot Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that and realize all or part of step that above-described embodiment method is carried Suddenly the program that can be by completes to instruct relevant hardware, and described program can be stored in a kind of computer-readable storage medium In matter, this program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, each functional unit in each embodiment of the present invention can be integrated in a processing module, it is also possible to It is that unit is individually physically present, it is also possible to two or more unit are integrated in a module.Above-mentioned integrated mould Block both can realize to use the form of hardware, it would however also be possible to employ the form of software function module realizes.Described integrated module is such as When fruit is using the form realization of software function module and as independent production marketing or use, it is also possible to be stored in a computer In read/write memory medium.
Storage medium mentioned above can be read only memory, disk or CD etc..
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace And modification, the scope of the present invention is limited by claims and equivalent thereof.

Claims (9)

1. the ear microphone of a mobile terminal and the audio testing method of receiver, it is characterised in that comprise the steps:
Test audio signal is sent to mobile terminal by measuring microphone earphone by audio test device, and by described mobile whole Test audio signal described in the ear microphone interface of end, described mobile terminal generates sound according to described test audio signal Frequently signal, and play described audio signal by the receiver of described mobile terminal;
Described audio test device receives the described audio signal that described mobile terminal generates;
Described audio signal is sampled and carries out fast Fourier FFT to determine described sound by described audio test device Frequently the frequency of signal;
Judge that the difference of the frequency of described audio signal and the frequency of described test audio signal is whether within the scope of presetting;
If it is determined that within the scope of presetting, then judge that described mobile terminal is tested by voice-frequency channel.
2. audio testing method as claimed in claim 1, it is characterised in that described mobile terminal is by measuring mike by institute State audio signal to send to described audio test device.
3. audio testing method as claimed in claim 2, it is characterised in that described mobile terminal, described measurement Mike's otopyorrhagia Machine and described measurement mike are placed in audio frequency shielded box.
4. audio testing method as claimed in claim 2, it is characterised in that also include: described measurement mike is sent Described audio signal is amplified.
5. the ear microphone of a mobile terminal and the audio test system of receiver, it is characterised in that including: audio-frequency test fills Put and measure mike,
Described audio test device is used for generating test audio signal and described test audio signal being sent to described mobile whole End, and according to the audio signal received and described test audio signal, the voice-frequency channel of described mobile terminal is surveyed Examination, wherein, described audio signal is the survey that described mobile terminal arrives according to the ear microphone interface of described mobile terminal Examination audio signal is converted to, and is played out by the receiver of described mobile terminal, wherein, and described audio test device Including:
Generation module, is used for generating test audio signal;
Sending module, for sending described test audio signal to measuring microphone earphone;
Receiver module, for receiving the described audio signal that described measurement mike sends;
Frequency generation module, is used for that described audio signal is sampled and carried out fast Fourier FFT described to determine The frequency of audio signal;And
Judge module, whether the difference for the frequency of the frequency and described test audio signal that judge described audio signal is being preset Within the scope of, if it is determined that within the scope of presetting, then judge that described mobile terminal is tested by voice-frequency channel;
Described measurement mike is for receiving the described mobile audio signal sent, and sends described audio signal to described sound Frequency test device.
6. audio test system as claimed in claim 5, it is characterised in that described measurement mike is simulation artificial ear.
7. audio test system as claimed in claim 5, it is characterised in that also include:
Measure microphone earphone, for receiving the test audio signal from described audio test device, and by described test tone Frequently signal is sent to the ear microphone interface of described mobile terminal.
8. audio test system as claimed in claim 7, it is characterised in that also include:
Audio frequency shielded box, accommodates described measurement microphone earphone, described mobile terminal and described among described audio frequency shielded box Measure mike.
9. audio test system as claimed in claim 5, it is characterised in that also include:
Front-located power amplifier device, described front-located power amplifier device is arranged between described audio test device and described measurement mike, For described audio signal is amplified.
CN201110430487.3A 2011-12-20 2011-12-20 The ear microphone of mobile terminal and the audio testing method of receiver and system Active CN103179495B (en)

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