CN103634730A - Audio parameter automatic adjustment system and method used for mobile terminal assembling line - Google Patents
Audio parameter automatic adjustment system and method used for mobile terminal assembling line Download PDFInfo
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- CN103634730A CN103634730A CN201210294948.3A CN201210294948A CN103634730A CN 103634730 A CN103634730 A CN 103634730A CN 201210294948 A CN201210294948 A CN 201210294948A CN 103634730 A CN103634730 A CN 103634730A
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Abstract
The invention discloses an audio parameter automatic adjustment system and a method used for production assembling line. The system comprises a sound-absorbing box body, a sound pickup device, an audio analysis device and an audio adjustment module. The sound-absorbing box body comprises a sealed box and an accommodating groove. Sound-absorbing materials are adhered on the internal wall of the sealed box. The accommodating groove is used for placing and fixing a mobile terminal to be adjusted so that a loudspeaker of the mobile terminal is closely clung to a shell of the box body. The sound pickup device is arranged at the loudspeaker position of the mobile terminal and used for acquiring an audio signal and sending the acquired audio signal to the audio analysis device. The audio analysis device is connected with the sound pickup device via a USB interface and used for receiving the audio signal and extracting an audio parameter to analyze and sending an analysis result to the audio adjustment module. The audio adjustment module is arranged inside the mobile terminal and used for playing a sound file so as to send the audio signal to the sound pickup device and adjusting the audio parameter according to the analysis result.
Description
Technical field
The present invention relates to terminal technology field, relate in particular to a kind of audio frequency parameter automatic adjustment system and method for mobile terminal assembly line.
Background technology
Present various mobile terminal product emerges in an endless stream, and speech communication and multimedia application are its very important functions always, and the quality of audio quality, directly has influence on user's experience.In order to guarantee the quality of audio frequency, in product design process, need audio frequency parameter to arrange, and finally set one group of audio frequency parameter, for subsequent product, produce, and in process of production, generally just no longer these parameters are adjusted.
In whole audio system, parametric loudspeaker is the biggest factor that affects audio system quality, but this point is often ignored by general mobile-phone manufacturers, because resetting of loudspeaker audio frequency parameter, need to adopt artificial mode to carry out, waste time and energy, can extend the testing time of product, increase cost, and a lot of audio analysis instrument erect-positions need to be set, input ratio is larger.
In sum, need a kind of method of fast automatic setting product audio frequency parameter cheaply to improve the audio quality of mobile terminal, increase user for the satisfaction of product.
Summary of the invention
Problem to be solved by this invention is to provide a kind of audio frequency parameter automatic adjustment system and method for the production of assembly line, to solve the problem of product audio quality property of there are differences when dispatching from the factory, and the satisfaction when improving user in audio plays and receiving calls.
In order to solve the problems of the technologies described above, a kind of audio frequency parameter automatic adjustment system for the production of assembly line provided by the invention is achieved through the following technical solutions:
For the production of an audio frequency parameter automatic adjustment system for assembly line, described system comprises:
Sound-absorbing casing, comprises a closed box, on described closed box inwall, pastes sound-absorbing material, and a holding tank for placing and fixing mobile terminal to be adjusted, and makes described mobile terminal loudspeaker be close to the housing of described casing;
Pick-up, is arranged at the loudspeaker position of described mobile terminal, for gathering audio signal, and the audio signal collecting is sent to audio analysis device;
Audio analysis device, is connected with described pick-up by USB interface, is used for receiving described audio signal, and extracts audio frequency parameter analysis, and analysis result is sent to audio frequency adjusting module;
Audio frequency adjusting module, is arranged in described mobile terminal, and the file that is used for playing sound, to send audio signal to described pick-up, is adjusted audio frequency parameter according to described analysis result.
In order to solve aforementioned technical problem, the present invention also provides a kind of audio frequency parameter automatic adjusting method for the production of assembly line, and described method is achieved through the following technical solutions:
For the production of an audio frequency parameter automatic adjusting method for assembly line, described method comprises the steps:
S101. audio analysis device sends audio-frequency test adjustment order to mobile terminal;
S102. when the audio frequency adjusting module of mobile terminal receives described audio-frequency test adjustment order, enter automatic test and adjust state;
S103. according to described test adjustment order, by loudspeaker, play predefined audio files;
S104. described audio frequency adjusting module sends audio signal to described audio analysis device;
S105. described audio analysis device receives described audio signal, and extracts audio frequency parameter analysis, according to analysis result data, resets audio frequency parameter, and the described audio frequency parameter resetting is sent to audio frequency adjusting module;
Whether the audio frequency parameter that S106. judgement is set is reasonable, if not, again sends audio-frequency test adjustment order, if so, stops test adjustment;
S107. described audio frequency adjusting module change audio frequency parameter is the audio frequency parameter resetting and plays described audio files, enters S103 to S106.
Audio frequency parameter automatic adjustment system and the method for a kind of mobile terminal assembly line of the embodiment of the present invention, can be used for mobile terminal or device product assembly line, make product when dispatching from the factory, can eliminate the audio quality difference causing because of loudspeaker, phone housing cavity, circuit parameter etc., the consistency of improving the quality of products, and improve user and experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the audio frequency parameter automatic adjustment system composition frame chart of embodiment of the present invention mobile terminal assembly line;
Fig. 2 is the audio frequency parameter automatic adjusting method flow chart of embodiment of the present invention mobile terminal assembly line.
Embodiment
In order to make the object of the embodiment of the present invention, technical scheme and advantage are clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is carried out to clear, complete description, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the present invention mainly provides a kind of audio frequency parameter automatic adjustment system of mobile terminal assembly line, the product audio frequency parameter in production process is adjusted automatically, and made it reach optimal state, to improve user's experience.
For solving the problems of the technologies described above, the invention provides the audio-frequency test case of a sealing, on wall, paste sound-absorbing material within it, the mobile phone that need to adjust parameter is fixed on the ad-hoc location of audio-frequency test case.
A high-quality pick-up is placed in loudspeaker position at mobile phone, be used for gathering audio signal, and the audio signal collecting is transported to the external audio analytical equipment of a built-in high-grade sound card, for indexs such as the signal to noise ratio of audio signal, harmonic distortion, inband flatness, analyze.
According to the result of analyzing, the USB interface by mobile terminal transmits new audio frequency parameter to mobile terminal, adjusts, until audio frequency parameter is adjusted to optimum state by test repeatedly repeatedly.
Its concrete execution mode is as follows:
For fear of in debug process, be subject to the interference of ambient noise, the embodiment of the present invention is used a kind of airtight double-deck soundproof box, fills sound-absorbing material in interlayer, with effectively isolated outside sound interference.
On the inwall of casing, post wavy sound-absorbing material, to avoid the sound that the loudspeaker of mobile phone send reflected by tank surface and cause test error.
For example, Mobile phone horn position is apart from casing housing 2mm place, lay high-quality pick-up, pick-up passes casing by wire cable and is connected to outside audio analysis device, for the audio signal of terminal is outputed to external audio analytical equipment, in the junction of audio frequency output cable and casing, use rubber sealing ring carries out the encapsulation process of casing, to avoid the interference of external audio signal.
Audio analysis device adopts USB cable to be connected with the mobile terminal in casing, and for transmitting test command or audio frequency parameter, the junction of USB cable and casing, adopts rubber seal to process equally, to avoid the interference of external audio signal.
In mobile terminal, comprise an audio frequency adjusting module, the broadcasting that is used for carrying out audio files with output audio parameter to audio analysis device; And according to the order of audio analysis device input, adjust described audio frequency parameter, and wherein, the sine wave signal that described audio files comprises different amplitudes and frequency, these sine wave signals are to preset according to demand.Be audio frequency adjusting module according to external audio analytical equipment after audio frequency parameter is analyzed, set rational audio frequency parameter, and adjust after sending to audio frequency adjusting module.
Wherein, described audio analysis device specifically comprises:
Analog to digital converter, is used for described audio signal to be converted to digital signal;
Digital signal processor, is used for analyzing described digital signal, obtains audio analysis result data;
Digital received and sent interface, is used for receiving described audio signal and sends described analysis result data to described audio frequency adjusting module.
Built-in DSP digital signal processor, described digital signal processor obtains analysis result data to index analyses such as the signal to noise ratio of audio signal, total harmonic distortion and inband flatness, and described result data is sent to audio frequency adjusting module by USB communication interface.
Wherein, the method for audio analysis does not repeat one by one, and persons skilled in the art are according to the principle of audio analysis and conventional time domain or frequency-domain analysis method, or adopts existing audio analyzer can obtain audio frequency parameter.
Result according to analyzing, transmits new audio frequency parameter by USB interface to mobile terminal, by test repeatedly repeatedly, until audio frequency parameter is adjusted to optimum state.
The present invention, in audio frequency parameter self-regulating process, can record adjustment process automatically, such as: the IEMI number of memory mobile phone, the relevant informations such as series number of product, and remain in the SD card of audio analysis device, as follow-up test foundation.
Audio frequency parameter automatic adjustment system and the method for a kind of mobile terminal assembly line of the embodiment of the present invention, can be used for mobile terminal or device product assembly line, make product when dispatching from the factory, can eliminate the audio quality difference causing because of loudspeaker, phone housing cavity, circuit parameter etc., the consistency of improving the quality of products, and improve user and experience.
In order to realize goal of the invention of the present invention, the embodiment of the present invention also provides a kind of audio frequency parameter automatic adjusting method for the production of assembly line, and described method comprises the steps:
S101. audio analysis device sends audio-frequency test adjustment order to mobile terminal;
S102. when the audio frequency adjusting module of mobile terminal receives described audio-frequency test adjustment order, enter automatic test and adjust state;
S103. according to described test adjustment order, by loudspeaker, play predefined audio files;
S104. described audio frequency adjusting module sends audio signal to described audio analysis device;
S105. described audio analysis device receives described audio signal, and extracts audio frequency parameter analysis, according to analysis result data, resets audio frequency parameter, and the described audio frequency parameter resetting is sent to audio frequency adjusting module;
Whether the audio frequency parameter that S106. judgement is set is reasonable, if so, stops test adjustment;
S107. if not, again send audio-frequency test adjustment order, described audio frequency adjusting module changes audio frequency parameter and is the audio frequency parameter resetting and plays described audio files, enters S103 to S106.
Therefore,, when mobile terminal receives after test command, enter automatic test mode, according to the order of external audio analytical equipment, automatically play relevant audio file, and according to the audio frequency parameter of outside input, implement parameter adjustment, until audio-frequency index reaches optimum state.
In the embodiment providing in the application, should be understood that disclosed module can realize in other way, for example, embodiment described above is only that schematically for example division of described module, is only a kind of logical partitioning, during actual realization, can there is other dividing mode, for example a plurality of modules or unit or equipment can in conjunction with or can be integrated in another system, or some features can ignore, or do not carry out.In addition, shown coupling between mutually or direct-coupling or communication connection can pass through some interfaces, opinion coupling or the communication connection of system or unit, can be electrically, mechanical or other form.
The described unit as separating component explanation can or can not be also that physics separates, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can divide less than in a plurality of network element.Can select according to the actual needs the some or all of object that realizes the present embodiment scheme wherein.
In addition, each functional module in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that also can adopt hardware to add SFU software functional unit realizes.
The integrated unit that the above-mentioned form with SFU software functional unit realizes, can be stored in an embodied on computer readable access media.Above-mentioned SFU software functional unit is stored in a storage medium, comprise some instructions with so that computer equipment (can be personal computer, server or, the network equipment, mobile terminal etc.) carry out the part steps of method described in the embodiment of the present invention.And aforesaid storage medium comprises: the medium that USB flash disk, portable hard drive, read-only memory, random access memory, magnetic disc or CD etc. can be program code stored.
Those skilled in the art will recognize that; above-mentioned embodiment is exemplary; in order to make those skilled in the art can better understand this patent content; should not be understood as the restriction to this patent protection range; so long as disclose spiritual do any according to this patent, be equal to change or modify, all falling into this patent protection range.
Claims (5)
1. for the production of an audio frequency parameter automatic adjustment system for assembly line, it is characterized in that, described system comprises:
Sound-absorbing casing, comprises a closed box, on described closed box inwall, pastes sound-absorbing material, and a holding tank for placing and fixing mobile terminal to be adjusted, and makes described mobile terminal loudspeaker be close to the housing of described casing;
Pick-up, is arranged at the loudspeaker position of described mobile terminal, for gathering audio signal, and the audio signal collecting is sent to audio analysis device;
Audio analysis device, is connected with described pick-up by USB interface, is used for receiving described audio signal, and extracts audio frequency parameter analysis, and analysis result is sent to audio frequency adjusting module;
Audio frequency adjusting module, is arranged in described mobile terminal, and the file that is used for playing sound, to send audio signal to described pick-up, is adjusted audio frequency parameter according to described analysis result.
2. the audio frequency parameter automatic adjustment system for the production of assembly line as claimed in claim 1, is characterized in that, described audio analysis device comprises:
Analog to digital converter, is used for described audio signal to be converted to digital signal;
Digital signal processor, is used for analyzing described digital signal, obtains audio analysis result data;
Digital received and sent interface, is used for receiving described audio signal and sends described analysis result data to described audio frequency adjusting module.
3. the audio frequency parameter automatic adjustment system for the production of assembly line as claimed in claim 2, is characterized in that, described digital received and sent interface comprises USB interface.
4. for the production of an audio frequency parameter automatic adjusting method for assembly line, it is characterized in that, described method comprises the steps:
S101. audio analysis device sends audio-frequency test adjustment order to mobile terminal;
S102. when the audio frequency adjusting module of mobile terminal receives described audio-frequency test adjustment order, enter automatic test and adjust state;
S103. according to described test adjustment order, by loudspeaker, play predefined audio files;
S104. described audio frequency adjusting module sends audio signal to described audio analysis device;
S105. described audio analysis device receives described audio signal, and extracts audio frequency parameter analysis, according to analysis result data, resets audio frequency parameter, and the described audio frequency parameter resetting is sent to audio frequency adjusting module;
Whether the audio frequency parameter that S106. judgement is set is reasonable, if not, again sends audio-frequency test adjustment order, if so, stops test adjustment;
S107. described audio frequency adjusting module change audio frequency parameter is the audio frequency parameter resetting and plays described audio files, enters S103 to S106.
5. the audio frequency parameter automatic adjusting method for the production of assembly line as claimed in claim 4, is characterized in that, described audio frequency parameter comprises signal to noise ratio, harmonic distortion or inband flatness.
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| CN106454680A (en) * | 2016-11-23 | 2017-02-22 | 吟飞科技(江苏)有限公司 | Test field for speaker sound and testing method |
| CN112799629A (en) * | 2021-01-06 | 2021-05-14 | 深圳市金锐显数码科技有限公司 | Mainboard audio debugging method, device, equipment and storage medium |
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