CN103179240A - Audio test method and system for mobile terminal - Google Patents
Audio test method and system for mobile terminal Download PDFInfo
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- CN103179240A CN103179240A CN2011104304695A CN201110430469A CN103179240A CN 103179240 A CN103179240 A CN 103179240A CN 2011104304695 A CN2011104304695 A CN 2011104304695A CN 201110430469 A CN201110430469 A CN 201110430469A CN 103179240 A CN103179240 A CN 103179240A
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Abstract
The invention discloses an audio test method for a mobile terminal. The method comprises that an audio test device converts test audio signals into test sound waves through a speaker and plays the test sound waves to the mobile terminal, receives audio signals generated by the mobile terminal according to the test sound waves and tests an audio channel of the mobile terminal according to the audio signals and the test audio signals. The invention further discloses an audio test system for the mobile terminal. According to the audio test method and system for the mobile terminal, a stereo earpiece output channel and a microphone input channel of the mobile terminal can be tested, and a sound and electric signal cross loop-back method is used for performing audio loop-back frequency sweeping in real time, accordingly, unnecessary delay is reduced, test time is shortened, and test costs are reduced.
Description
Technical field
The present invention relates to the audio-frequency test technical field, particularly a kind of audio testing method of mobile terminal and audio test system.
Background technology
Now, mobile terminal has become the necessity of people's daily life.In the large-scale production of modernization mobile terminal, in order to guarantee the audio performance of product, audio-frequency test is link necessary in production test.Wherein, the main test purpose of the audio-frequency test in mobile terminal large-scale production is for making quality.Wherein, audio-frequency test comprises the paster quality that detects mainboard and the assembling quality that detects all parts.
The method that traditional mobile terminal large-scale production audio frequency is surveyed comprises following four kinds:
(1) the artificial subjective testing of terminal voice winding.Use path by the terminal software analog subscriber.This method of testing shortcoming is that Stability and veracity is poor.Because artificial test is subjective judgement, and judgement itself there is no fixed standard in, therefore the standard of test may vary with each individual.And artificial measuring stability is poor, the long sense of fatigue brought of mechanical action, and it is unstable that the rotation of changing shifts all can cause testing.
(2) test of the voice pathway under the signaling call model.Set up signaling by the terminal comprehensive tester and call out, the conversation that simulation is real off the net, and realize audio-frequency test by audio-frequency generator and audio analyzer.The shortcoming of this method of testing is that tester is more and path test is also comparatively complicated, and also long testing cost is high to cause the testing time.
(3) recording of terminal audio frequency path or playback test.Realize that by terminal software each voice-frequency channel independently records or playback, and realize the automatic test of audio frequency by audio-frequency test equipment.The shortcoming of this method of testing is to have split path and makes number of passages be multiplied, thereby has increased testing cost, can not carry out real-time testing.
(4) the terminal voice loopback test of band delay.Set up by terminal software the language path that the user uses, and be the realization of audio-frequency test, path is necessarily postponed.The shortcoming of this method of testing is to have added delay, has increased the testing time, has increased testing cost, can not carry out real-time testing.
Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency.
For this reason, first purpose of the present invention is to provide a kind of audio testing method of mobile terminal, and this audio testing method can be realized the test to stereophone output channel and the microphone input channel of mobile terminal.Second purpose of the present invention is to provide a kind of audio test system of mobile terminal.
For achieving the above object, the embodiment of first aspect present invention has proposed a kind of audio testing method of mobile terminal, comprises the steps: that audio test device is converted to test sound wave by loud speaker with test audio signal and to mobile terminal playing; Described audio test device receives the audio signal that described mobile terminal generates according to described test sound wave; And described audio test device is tested the voice-frequency channel of described mobile terminal according to described audio signal and described test audio signal.
Audio testing method according to the mobile terminal of the embodiment of the present invention, can realize the test to stereophone output channel and the microphone input channel of mobile terminal, and adopt the method for acoustoelectric signal intersection winding, carry out in real time audio frequency winding frequency sweep, thereby reduced unnecessary delay, shorten the testing time, reduced testing cost.
The embodiment of second aspect present invention has proposed a kind of audio test system of mobile terminal, comprise: audio test device and loud speaker, described audio test device is used for generating test audio signal and described test audio signal being sent to described mobile terminal, and according to the audio signal that receives and described test audio signal, the voice-frequency channel of described mobile terminal is tested; Described loud speaker is used for receiving described test audio signal, and test audio signal is converted to test sound wave and to mobile terminal playing, wherein, described mobile terminal generates described audio signal and described audio signal is sent to described audio test device according to described test sound wave.
Audio test system according to the mobile terminal of the embodiment of the present invention, can realize the test to stereophone output channel and the microphone input channel of mobile terminal, and adopt the method for acoustoelectric signal intersection winding, carry out in real time audio frequency winding frequency sweep, thereby reduced unnecessary delay, shorten the testing time, reduced testing cost.
The aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or the additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein:
Fig. 1 is the FB(flow block) according to the audio testing method of the mobile terminal of the embodiment of the present invention;
Fig. 2 is the schematic diagram of the audio test system of mobile terminal according to an embodiment of the invention;
Fig. 3 is the schematic diagram according to the audio test device of the embodiment of the present invention; And
Fig. 4 is the schematic diagram of the audio test system of mobile terminal in accordance with another embodiment of the present invention.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
With reference to following description and accompanying drawing, these and other aspects of embodiments of the invention will be known.These describe and accompanying drawing in, specifically disclose some specific implementations in embodiments of the invention, represent to implement some modes of the principle of embodiments of the invention, still should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise spirit and interior all changes, modification and the equivalent of intension scope that falls into additional claims.
Below with reference to the audio testing method of Fig. 1 description according to the mobile terminal of the embodiment of the present invention.Wherein, mobile terminal comprises microphone and with the stereophone interface of microphone.And loud speaker and mobile terminal all are arranged in the audio frequency shielded box.
As shown in Figure 1, the audio testing method of the mobile terminal of the embodiment of the present invention comprises the steps:
Step S101, audio test device are converted to test sound wave by loud speaker with test audio signal and to mobile terminal playing.
Audio test device produces test audio signal, and exports this test audio signal to loud speaker.Wherein, audio test device is for supporting the audio-frequency test instrument of multichannel input and output.Loud speaker is converted to test sound wave with this test audio signal, and with this test sound wave to mobile terminal playing.
In one embodiment of the invention, the test audio signal that is produced by audio test device can first be amplified by the front-located power amplifier device before outputing to loud speaker.Test audio signal after the front-located power amplifier device will amplify is transported to loud speaker.Wherein, loud speaker is refuted and is connected to the front-located power amplifier device.
In one embodiment of the invention, loud speaker can be the simulation artificial mouth.Export loud speaker in the audio frequency shielded box to by the audio-frequency test signal after the amplification of front-located power amplifier device output, and play by the simulation artificial mouth, thereby test audio signal is converted to test sound wave.Propagate in the space of test sound wave in the audio frequency shielded box.Need to prove, loud speaker is device independently, is not the loud speaker on mobile terminal.The mobile terminal that is positioned at the audio frequency shielded box utilizes the microphone collecting test sound wave on it, and generates audio signal according to this test sound wave.
Also be provided with four joints with the stereophone plug of microphone in the audio frequency shielded box, the stereophone interface with microphone on this stereophone plug and mobile terminal is suitable, and is connected with audio test device.Thus, mobile terminal to stereophone, and conducts to audio test device by the left and right acoustic channels of stereophone with the audio signal winding that generates, thereby audio signal is converted to the signal of telecommunication.In other words, the audio signal of mobile terminal generation is sent to audio test device by stereophone interface and stereophone plug.
Step S102, the audio signal that the audio test device mobile terminal receive generates according to test sound wave.
The audio signal that audio test device generates according to test sound wave by the stereophone mobile terminal receive.
Step S103, audio test device is tested the voice-frequency channel of mobile terminal according to audio signal and test audio signal.
Audio test device carries out data sampling to the audio signal that receives, and the rear data of sampling are carried out FFT (Fast Fourier Transformation, fast Fourier) conversion, thereby the frequency of determining audio signal is the frequency of mobile terminal playing.The frequency of the audio signal the determined difference with the frequency of test audio signal is compared with the scope of presetting, so that the output channel of stereophone and the input channel of microphone are tested.
Within if the difference of the frequency of the frequency of audio signal and test audio signal is positioned at default scope, judge that mobile terminal tests by voice-frequency channel.If the difference of the frequency of the frequency of audio signal and test audio signal is positioned at outside default scope, the voice-frequency channel that judges mobile terminal is obstructed, and namely on the input channel of the output channel of stereophone and microphone, the paster quality of device has earphone jack and the receiver fault of problem or assembling.Judge that simultaneously loudness and distortion are whether within acceptable scope.If the loudness of audio signal is too little, assembly failure is described or foreign matters from being blocked has been arranged receiver.If the distortion of audio signal too greatly illustrate that harmonic signal is too loud.Have whister-type noise or cacophonia in conversation, need to do concrete analysis to the fault mobile phone.
By above-mentioned test, can test the following aspects of the input channel of the stereophone output channel of mobile terminal and microphone:
(1) detect the paster quality of device on above-mentioned two paths;
(2) detect the quality of left and right acoustic channels path in the stereophone jack;
(3) detect the monomer mass of microphone;
(4) assembling quality of each assembly in detection microphone voice chamber.
Audio testing method according to the mobile terminal of the embodiment of the present invention, can realize the test to stereophone output channel and the microphone input channel of mobile terminal, and adopt the method for acoustoelectric signal intersection winding, carry out in real time audio frequency winding frequency sweep, thereby reduced unnecessary delay, reduced the time of interference and Multi-audio-frequency test waste, thereby shortened the testing time, testing efficiency is high and have a higher measuring accuracy.And the tester that the audio testing method of the mobile terminal of the embodiment of the present invention uses is less, has reduced testing cost, is applicable to large-scale production.
Below with reference to the audio test system 200 of Fig. 2 to Fig. 4 description according to the mobile terminal of the embodiment of the present invention.
As shown in Figure 2, the audio test system 200 of the mobile terminal that provides of the embodiment of the present invention comprises audio test device 210 and loud speaker 220.Wherein, audio test device 210 is used for generating test audio signal and test audio signal being sent to mobile terminal 230, and according to the audio signal that receives and test audio signal, the voice-frequency channel of mobile terminal 230 is tested.Loud speaker 220 is used for receiving test audio signal and test audio signal is converted to test sound wave and plays to mobile terminal 230.Wherein, mobile terminal 230 can generate audio signal and audio signal is sent to audio test device 210 according to test sound wave.
As shown in Figure 3, audio test device 210 comprises generation module 211, sending module 212, receiver module 213, frequency generation module 214 and judge module 215.
Particularly, generation module 211 produces test audio signal, then also exports this test audio signal to loud speaker 220 by sending module 212.Wherein, audio test device 210 can be for supporting the audio-frequency test instrument of multichannel input and output.Loud speaker 220 is converted to test sound wave with this test audio signal, and this test sound wave is play to mobile terminal 230.
In one embodiment of the invention, the audio test system 200 of the mobile terminal that provides of the embodiment of the present invention also comprises front-located power amplifier device 240.As shown in Figure 4, front-located power amplifier device 240 is arranged between audio test device 210 and loud speaker 220, is used for test audio signal is amplified.Test audio signal after front-located power amplifier device 240 will amplify is transported to loud speaker 220.Wherein, loud speaker 220 is refuted and is connected to front-located power amplifier device 240.In an example of the present invention, loud speaker 220 can be the simulation artificial mouth.
In yet another embodiment of the present invention, the audio test system 200 of the mobile terminal that provides of the embodiment of the present invention also comprises audio frequency shielded box 250.Accommodate loud speaker 220 and mobile terminal 230 in audio frequency shielded box 250.Exported in the audio frequency shielded box to 250 loud speaker 220 by the audio-frequency test signal after the amplification of front-located power amplifier device 240 output, and play by simulation artificial mouth 220, thereby test audio signal is converted to test sound wave.Propagate in the space of test sound wave in audio frequency shielded box 250.Need to prove, loud speaker 220 is device independently, is not the loud speaker on mobile terminal 230.The mobile terminal 230 that is positioned at audio frequency shielded box 250 utilizes the microphone collecting test sound wave on it, and generates audio signal according to this test sound wave.
Also be provided with four joints with the stereophone plug of microphone in audio frequency shielded box 250, the stereophone interface with microphone on this stereophone plug and mobile terminal is suitable, and is connected with audio test device 210.Thus, mobile terminal 230 to stereophone, and conducts to audio test device 210 by the left and right acoustic channels of stereophone with the audio signal winding that generates, thereby audio signal is converted to the signal of telecommunication.In other words, the audio signal of mobile terminal 230 generations is sent to receiver module 213 by stereophone interface and stereophone plug.
The audio signal that receiver module 213 generates according to test sound wave by stereophone mobile terminal receive 230.214 pairs of audio signals that receive of frequency generation module are carried out data sampling, and the rear data of sampling are carried out the FFT conversion, thereby the frequency of determining audio signal is the frequency that mobile terminal 230 is play.Judge module 215 compares the frequency of the audio signal the determined difference with the frequency of test audio signal with the scope of presetting, so that the output channel of stereophone and the input channel of microphone are tested.
Within if the difference of the frequency of the frequency of audio signal and test audio signal is positioned at default scope, judge module 215 judgement mobile terminals 230 are tested by voice-frequency channel.If the difference of the frequency of the frequency of audio signal and test audio signal is positioned at outside default scope, the voice-frequency channel of judge module 215 judgement mobile terminals is obstructed, and namely on the input channel of the output channel of stereophone and microphone, the paster quality of device has earphone jack and the receiver fault of problem or assembling.
Judge module 215 is used for also judging that loudness and distortion are whether within acceptable scope.If the loudness of audio signal is too little, assembly failure is described or foreign matters from being blocked has been arranged receiver.If the distortion of audio signal too greatly illustrate that harmonic signal is too loud.Have whister-type noise or cacophonia in conversation, need to do concrete analysis to the fault mobile phone.
Audio test system according to the mobile terminal of the embodiment of the present invention, can realize the test to stereophone output channel and the microphone input channel of mobile terminal, and adopt the method for acoustoelectric signal intersection winding, carry out in real time audio frequency winding frequency sweep, thereby reduced unnecessary delay, reduced the time of interference and Multi-audio-frequency test waste, thereby shortened the testing time, testing efficiency is high and have a higher measuring accuracy.And the tester that the audio testing method of the mobile terminal of the embodiment of the present invention uses is less, has reduced testing cost, is applicable to large-scale production.
Describe and to be understood in flow chart or in this any process of otherwise describing or method, expression comprises module, fragment or the part of code of the executable instruction of the step that one or more is used to realize specific logical function or process, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can be not according to order shown or that discuss, comprise according to related function by the mode of basic while or by opposite order, carry out function, this should be understood by the embodiments of the invention person of ordinary skill in the field.
In flow chart the expression or in this logic of otherwise describing and/or step, for example, can be considered to the sequencing list be used to the executable instruction that realizes logic function, may be embodied in any computer-readable medium, use for instruction execution system, device or equipment (as the computer based system, comprise that the system of processor or other can and carry out the system of instruction from instruction execution system, device or equipment instruction fetch), or use in conjunction with these instruction execution systems, device or equipment.With regard to this specification, " computer-readable medium " can be anyly can comprise, storage, communication, propagation or transmission procedure be for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically of computer-readable medium (non-exhaustive list) comprises following: the electrical connection section (electronic installation) with one or more wirings, portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM), the erasable read-only memory (EPROM or flash memory) of editing, fiber device, and portable optic disk read-only memory (CDROM).In addition, computer-readable medium can be even paper or other the suitable medium that can print described program thereon, because can be for example by paper or other media be carried out optical scanner, then edit, decipher or process in the electronics mode with other suitable methods in case of necessity and obtain described program, then it is stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, a plurality of steps or method can realize with being stored in memory and by software or firmware that suitable instruction execution system is carried out.For example, if realize with hardware, the same in another embodiment, can realize with any one in following technology well known in the art or their combination: have for data-signal being realized the discrete logic of the logic gates of logic function, application-specific integrated circuit (ASIC) with suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that and realize that all or part of step that above-described embodiment method is carried is to come the relevant hardware of instruction to complete by program, described program can be stored in a kind of computer-readable recording medium, this program comprises step of embodiment of the method one or a combination set of when carrying out.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can be also that the independent physics of unit exists, and also can be integrated in a module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (11)
1. the audio testing method of a mobile terminal, is characterized in that, comprises the following steps:
Audio test device is converted to test sound wave by loud speaker with test audio signal and to mobile terminal playing;
Described audio test device receives the audio signal that described mobile terminal generates according to described test sound wave; And
Described audio test device is tested the voice-frequency channel of described mobile terminal according to described audio signal and described test audio signal.
2. the audio testing method of mobile terminal as claimed in claim 1, is characterized in that, described mobile terminal is sent to described audio test device by the earphone interface of described mobile terminal with described audio signal.
3. the audio testing method of mobile terminal as claimed in claim 1, is characterized in that, also comprises:
Described loud speaker and described mobile terminal are placed in the audio frequency shielded box.
4. the audio testing method of mobile terminal as claimed in claim 3, is characterized in that, described loud speaker is the simulation artificial mouth.
5. as the audio testing method of the described mobile terminal of claim 1-4 any one, it is characterized in that, described audio test device is tested specifically the voice-frequency channel of mobile terminal according to audio signal and test audio signal and is comprised:
Described audio test device is sampled to described audio signal and is carried out fast Fourier FFT conversion to determine the frequency of described audio signal;
Judge that the difference of frequency of the frequency of described audio signal and described test audio signal is whether within default scope;
If judgement within default scope, judges described mobile terminal and tests by voice-frequency channel.
6. the audio test system of a mobile terminal, is characterized in that, comprises audio test device and loud speaker,
Described audio test device is used for generating test audio signal and described test audio signal being sent to described mobile terminal, and according to the audio signal that receives and described test audio signal, the voice-frequency channel of described mobile terminal is tested;
Described loud speaker is used for receiving described test audio signal, and test audio signal is converted to test sound wave and to mobile terminal playing, wherein, described mobile terminal generates described audio signal and described audio signal is sent to described audio test device according to described test sound wave.
7. the audio test system of mobile terminal as claimed in claim 6, is characterized in that, also comprises:
Front-located power amplifier device, described front-located power amplifier device are arranged between described audio test device and described loud speaker, are used for described test audio signal is amplified.
8. the audio test system of mobile terminal as claimed in claim 6, is characterized in that, described mobile terminal is sent to described audio test device by the earphone interface of described mobile terminal with described audio signal.
9. the audio test system of mobile terminal as claimed in claim 6, is characterized in that, also comprises:
The audio frequency shielded box accommodates described loud speaker and described mobile terminal among described audio frequency shielded box.
10. the audio test system of mobile terminal as claimed in claim 6, is characterized in that, described loud speaker is the simulation artificial mouth.
11. the audio test system as the described mobile terminal of claim 6-10 any one is characterized in that, described audio test device comprises:
Generation module is used for generating test audio signal;
Sending module is used for described test audio signal is sent to described loud speaker;
Receiver module is used for receiving the described audio signal that described mobile terminal sends;
The frequency generation module is used for described audio signal is sampled and carried out fast Fourier FFT conversion to determine the frequency of described audio signal; And
Judge module is used for judging that the difference of frequency of the frequency of described audio signal and described test audio signal whether within default scope, tests by voice-frequency channel if judgement within default scope, judges described mobile terminal.
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| CN111698630B (en) * | 2019-12-02 | 2022-04-05 | 芯讯通无线科技（上海）有限公司 | Test system of audio interface of wireless communication module |
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Application publication date: 20130626 |