CN202284970U - Sounding device applied to mobile communication terminal - Google Patents
Sounding device applied to mobile communication terminal Download PDFInfo
- Publication number
- CN202284970U CN202284970U CN2011204142643U CN201120414264U CN202284970U CN 202284970 U CN202284970 U CN 202284970U CN 2011204142643 U CN2011204142643 U CN 2011204142643U CN 201120414264 U CN201120414264 U CN 201120414264U CN 202284970 U CN202284970 U CN 202284970U
- Authority
- CN
- China
- Prior art keywords
- module
- communication terminal
- signal
- acoustic pressure
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Telephone Function (AREA)
Abstract
The utility model provides a sounding device applied to a mobile communication terminal. The sounding device comprises an acquisition module, an analog front end (AFE) module and a processing module; the acquisition module is used for acquiring environment sound pressure information and outputting a sound pressure analog signal; the AFE module is used for amplifying the sound pressure analog signal, converting the sound pressure analog signal into a sound pressure digital signal, performing nonlinear compensation and temperature compensation on the sound pressure digital signal, and then outputting a digital correction signal; a data association list and a reference value are preset in the processing module; a plurality of voltage values and dB values respectively corresponding to the voltage values are pre-stored in the data association list, and the processing module is used for processing the received digital correction signal to generate a voltage value, outputting and displaying the dB value corresponding to the voltage value, comparing the dB value and the reference value, calculating an environment noise exceeding value, and outputting and displaying the environment noise exceeding value. The sounding device is used for solving the problems of low sampling rate, no correction of analog to digital converter (ADC) output, and small dynamic range of a microphone (MIC) module and the like during sounding of the mobile communication terminal in the prior art.
Description
Technical field
The utility model relates to a kind of sound testing technology, particularly relates to a kind of sounding apparatus that is applied to communication terminal.
Background technology
The development of Along with computer technology, the intelligent communication terminal equipment that is used for the communication purpose that possesses calculating, storage and self-learning capability arises at the historic moment.Typical intelligent communication terminal comprises smart mobile phone, panel computer and possesses the personal digital assistant etc. of wireless communication capability.Because said intelligent communication terminal equipment is from " pattern that with equipment is " center " changes the pattern of " focus be put on man " into; integrated formula calculating, control technology, artificial intelligence technology and the biological identification technology etc. of imbedding; demonstrated fully the aim of " people-oriented ", made its hommization more.Owing to the development of hardware and software engineering, intelligent communication terminal equipment also can be provided with according to the individual demand adjustment again, make communicating terminal personalized more.Especially along with the reaching its maturity of smart mobile phone and dull and stereotyped computer technology, progressively become user's personal information center.For example the built-in various sensors of smart mobile phone or panel computer are as acceleration; Image; Pressure etc. also provide many application or experience for the user, and meanwhile, the user also expects and newly increased requirement the function and the application of intelligent communication terminal equipment further; Such as for pursuing comfortable rest or working environment, place hope on the demand of utilizing described intelligent communication terminal equipment that neighbourhood noise is tested.
In the prior art; There is the dealer to utilize to be loaded into the application of intelligent communication terminal equipment to realize the purpose that neighbourhood noise is tested; Also have through the hardware structure that changes said intelligent communication terminal equipment and reach the purpose that neighbourhood noise is tested; But still have following defective through using: the sampling rate of voice is lower, noise that can not frequency measurement spectrum broad; ADC output can not reflect the absolute sound intensity, does not proofread and correct; The dynamic range of MIC module is big inadequately, and lower bound has only 45dBSPL.
Thereby, how a kind of sound testing technology that is applied to communication terminal is provided, to solve the many defectives that exist in the above-mentioned prior art, real this area practitioner's problem demanding prompt solution that become.
The utility model content
The shortcoming of prior art in view of the above; The purpose of the utility model is to provide a kind of sounding apparatus that is applied to communication terminal; The sampling rate that is used for solving prior art communication terminal voice when sounding is lower, and ADC output does not have problems such as proofread and correct and the dynamic range of MIC module is little.
For realizing above-mentioned purpose and other relevant purposes; The utility model provides a kind of sounding apparatus that is applied to communication terminal, it is characterized in that, said sounding apparatus comprises at least: acquisition module; In order to will gathering environment acoustic pressure information, and output acoustic pressure simulating signal; The AFE module; Connect said acquisition module; Be used for said acoustic pressure simulating signal is amplified, and be the acoustic pressure digital signal, and said acoustic pressure digital signal is carried out nonlinear compensation and back output digital correction signal is handled in temperature compensation the acoustic pressure analog signal conversion of amplifying; Processing module; Connect said AFE module, be preset with a data association table and a reference value, said data association table prestores a plurality of magnitudes of voltage and the corresponding respectively dB value of this magnitude of voltage; In order to according to the digital correction signal that receives formation voltage value after treatment; And the dB value that said magnitude of voltage is corresponding output shows, simultaneously said dB value and said reference value compared, and calculates the neighbourhood noise value that exceeds standard and export demonstration.
In the sounding apparatus of the utility model, said AFE module comprises: signal amplification unit, connect said acquisition module, and said acoustic pressure simulating signal is amplified back output; AD conversion unit connects said signal amplification unit, is the acoustic pressure digital signal with the acoustic pressure analog signal conversion of amplifying; The figure adjustment unit connects said AD conversion unit, and said acoustic pressure digital signal is carried out nonlinear compensation and temperature compensation processing back output digital correction signal.Wherein, Said figure adjustment unit comprises non-linear compensation circuit and the temperature-compensation circuit that is connected in said AD conversion unit; Said non-linear compensation circuit compensates the nonlinear characteristic of said acoustic pressure digital signal, and the temperature varying coefficient of said temperature-compensation circuit through gathering said AD conversion unit is to the temperature compensation of carrying out of said acoustic pressure digital signal.
The sounding apparatus of the utility model also comprises display module, connects said processing module, dB value and the neighbourhood noise that is used to the to show said processing module output value that exceeds standard.
In the sounding apparatus of the utility model; Said acquisition module is the MIC recording module; Particularly; Said MIC recording module is MIC recording module intrinsic in the said communication terminal or the MIC recording module that places said communication terminal in addition, and the signal to noise ratio (S/N ratio) of said MIC recording module is greater than 30dB.
In the sounding apparatus of the utility model, said processing module is an application processor.
As stated; The sounding apparatus that is applied to communication terminal of the utility model; Can collect the high voice signal of sampling rate through the bigger acquisition module of its dynamic range; And then obtain the noise that broad is composed in frequency measurement, moreover the signal after amplifying has been carried out figure adjustment owing to be provided with the AFE module, can draw acoustic pressure parameter accurately; And then satisfied the client and can easily use real-time neighbourhood noise test, for the communication terminal of for example smart mobile phone and panel computer provides an interesting also useful environmental protection application.
Description of drawings
Fig. 1 is shown as the sounding apparatus theory diagram that the utility model is applied to communication terminal.
The element numbers explanation
1 sounding apparatus
11 acquisition modules
12 AFE modules
121 signal amplification units
122 AD conversion units
123 figure adjustment unit
13 processing modules
14 display modules
Embodiment
Below through the embodiment of specific instantiation explanation the utility model, those skilled in the art can be understood other advantages and the effect of the utility model easily by the content that this instructions disclosed.The utility model can also be implemented or use through other different embodiment, and each item details in this instructions also can be carried out various modifications or change based on different viewpoints and application under the spirit that does not deviate from the utility model.
See also Fig. 1, be shown as the sounding apparatus theory diagram that the utility model is applied to communication terminal.Need to prove; The diagram that is provided in the present embodiment is only explained the basic conception of the utility model in a schematic way; Satisfy only show in graphic with the utility model in relevant assembly but not component count, shape and plotted when implementing according to reality; Kenel, quantity and the ratio of each assembly can be a kind of random change during its actual enforcement, and its assembly layout kenel also maybe be more complicated.
As shown in the figure; The utility model provides a kind of sounding apparatus 1 that is applied to communication terminal, and in present embodiment, said communication terminal (diagram) for example is smart mobile phone, panel computer, or portable intelligent mobile terminal device such as individual processor; Said sounding apparatus 1 comprises at least: acquisition module 11; AFE module 12, processing module 13, and display module 14.
Said acquisition module 11 will be in order to will gather environment acoustic pressure information; And output acoustic pressure simulating signal; Described acoustic pressure is the variation that produces after atmospheric pressure is disturbed, and is the overbottom pressure of atmospheric pressure, and it is equivalent to the pressure change that the disturbance of stack on atmospheric pressure causes; Because the measurement ratio of acoustic pressure is easier to realize, also can tries to achieve other physical quantitys such as particle velocity indirectly through the measurement of acoustic pressure.In present embodiment, said acquisition module 11 is the MIC recording module, and particularly, said MIC recording module is a MIC recording module intrinsic in the said communication terminal, and the signal to noise ratio (S/N ratio) of said MIC recording module is greater than 30dB.In other embodiment, said MIC recording module also can be the MIC recording module that places said communication terminal in addition, and promptly extra MIC module, its signal to noise ratio (S/N ratio) also need greater than 30dB.
Said AFE module 12 connects said acquisition module 11; Be used for said acoustic pressure simulating signal is amplified, and be the acoustic pressure digital signal, and said acoustic pressure digital signal is carried out nonlinear compensation and back output digital correction signal is handled in temperature compensation the acoustic pressure analog signal conversion of amplifying; Particularly; Said AFE module 12 is by signal amplification unit 121, AD conversion unit 122, and figure adjustment unit 123 3 parts are formed.
Wherein, said signal amplification unit 121 connects said acquisition module 11, and said acoustic pressure simulating signal is amplified back output, and in concrete embodiment, said signal amplification unit 121 is a signal amplifier.
Said AD conversion unit 122 connects said signal amplification unit 121, is the acoustic pressure digital signal with the acoustic pressure analog signal conversion of amplifying, and in concrete embodiment, said AD conversion unit 122 is an ADC change-over circuit.
Said figure adjustment unit 123 connects said AD conversion unit 122, and said acoustic pressure digital signal is carried out nonlinear compensation and temperature compensation processing back output digital correction signal.In present embodiment; Said figure adjustment unit 123 comprises non-linear compensation circuit and the temperature-compensation circuit that is connected in said AD conversion unit 122; Said non-linear compensation circuit compensates the nonlinear characteristic of said acoustic pressure digital signal, and the temperature varying coefficient of said temperature-compensation circuit through gathering said AD conversion unit 122 is to the temperature compensation of carrying out of said acoustic pressure digital signal.
Said processing module 13 connects said AFE module 12; Be preset with a data association table and a reference value; Said data association table prestores a plurality of magnitudes of voltage and the corresponding respectively dB value of this magnitude of voltage, and in order to according to the digital correction signal that receives formation voltage value after treatment, and the dB value that said magnitude of voltage is corresponding is exported demonstration; Simultaneously said dB value and said reference value are compared, and calculate exceed standard value output of neighbourhood noise and show.In present embodiment, said processing module 13 is application processor (Application Processor).
Said display module 14 connects said processing module 13, dB value and the neighbourhood noise that is used to the to show said processing module 13 outputs value that exceeds standard.In present embodiment, said display module 14 is a display screen intrinsic in the said communication terminal.
By shown in Figure 1; Said acquisition module 11 is according to the environment acoustic pressure information output acoustic pressure simulating signal of gathering; Said AFE module 12 is amplified this acoustic pressure simulating signal, and converts the acoustic pressure digital signal into, then said acoustic pressure digital signal is carried out nonlinear compensation and temperature compensation processing back output digital correction signal; Again by said processing module 13 according to the digital correction signal that receives formation voltage value after treatment; And the dB value that said magnitude of voltage is corresponding output shows by display module 14, simultaneously said dB value and said reference value compared, and calculates the neighbourhood noise value that exceeds standard and export demonstration; Can draw neighbourhood noise parameter accurately, and then satisfy the client and can easily use real-time neighbourhood noise test.
In sum; The sounding apparatus that is applied to communication terminal of the utility model; Can collect the high voice signal of sampling rate through the bigger acquisition module of its dynamic range; And then obtain the noise that broad is composed in frequency measurement, moreover the signal after amplifying has been carried out figure adjustment owing to be provided with the AFE module, can draw acoustic pressure parameter accurately; And then satisfied the client and can easily use real-time neighbourhood noise test, for for example smart mobile phone and panel computer are that communication terminal provides an interesting also useful environmental protection application.So the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
The foregoing description is the principle and the effect thereof of illustrative the utility model only, but not is used to limit the utility model.Any be familiar with this technological personage all can be under the spirit and category of the utility model, the foregoing description is modified or is changed.Therefore, have common knowledge the knowledgeable under such as in the technical field, must contain by the claim of the utility model not breaking away from all equivalence modification or changes that spirit that the utility model discloses and technological thought are accomplished down.
Claims (8)
1. a sounding apparatus that is applied to communication terminal is characterized in that, said sounding apparatus comprises at least:
Acquisition module, in order to will gathering environment acoustic pressure information, and output acoustic pressure simulating signal;
The AFE module; Connect said acquisition module; Be used for said acoustic pressure simulating signal is amplified, and be the acoustic pressure digital signal, and said acoustic pressure digital signal is carried out nonlinear compensation and back output digital correction signal is handled in temperature compensation the acoustic pressure analog signal conversion of amplifying;
Processing module; Connect said AFE module, be preset with a data association table and a reference value, said data association table prestores a plurality of magnitudes of voltage and the corresponding respectively dB value of this magnitude of voltage; In order to according to the digital correction signal that receives formation voltage value after treatment; And the dB value that said magnitude of voltage is corresponding output shows, simultaneously said dB value and said reference value compared, and calculates the neighbourhood noise value that exceeds standard and export demonstration.
2. the sounding apparatus that is applied to communication terminal according to claim 1 is characterized in that: said AFE module comprises:
Signal amplification unit connects said acquisition module, and said acoustic pressure simulating signal is amplified back output;
AD conversion unit connects said signal amplification unit, is the acoustic pressure digital signal with the acoustic pressure analog signal conversion of amplifying;
The figure adjustment unit connects said AD conversion unit, and said acoustic pressure digital signal is carried out nonlinear compensation and temperature compensation processing back output digital correction signal.
3. the sounding apparatus that is applied to communication terminal according to claim 2; It is characterized in that: said figure adjustment unit comprises non-linear compensation circuit and the temperature-compensation circuit that is connected in said AD conversion unit; Said non-linear compensation circuit compensates the nonlinear characteristic of said acoustic pressure digital signal, and the temperature varying coefficient of said temperature-compensation circuit through gathering said AD conversion unit is to the temperature compensation of carrying out of said acoustic pressure digital signal.
4. the sounding apparatus that is applied to communication terminal according to claim 1 is characterized in that: said sounding apparatus also comprises display module, connects said processing module, dB value and the neighbourhood noise that is used to the to show said processing module output value that exceeds standard.
5. the sounding apparatus that is applied to communication terminal according to claim 1 is characterized in that: said acquisition module is the MIC recording module.
6. the sounding apparatus that is applied to communication terminal according to claim 5 is characterized in that: said MIC recording module is MIC recording module intrinsic in the said communication terminal or the MIC recording module that places said communication terminal in addition.
7. the sounding apparatus that is applied to communication terminal according to claim 6 is characterized in that: the signal to noise ratio (S/N ratio) of said MIC recording module is greater than 30dB.
8. the sounding apparatus that is applied to communication terminal according to claim 1 is characterized in that: said processing module is an application processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204142643U CN202284970U (en) | 2011-10-26 | 2011-10-26 | Sounding device applied to mobile communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204142643U CN202284970U (en) | 2011-10-26 | 2011-10-26 | Sounding device applied to mobile communication terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284970U true CN202284970U (en) | 2012-06-27 |
Family
ID=46296489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204142643U Withdrawn - After Issue CN202284970U (en) | 2011-10-26 | 2011-10-26 | Sounding device applied to mobile communication terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284970U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076083A (en) * | 2011-10-26 | 2013-05-01 | 无锡闻德科技有限公司 | Sound detection device applied to mobile communication terminal |
| CN104391177A (en) * | 2014-11-17 | 2015-03-04 | 南车青岛四方机车车辆股份有限公司 | System and method for grid-side harmonic testing of CRH unit |
| CN108833790A (en) * | 2018-08-14 | 2018-11-16 | 烟台艾睿光电科技有限公司 | A kind of Acquisition Circuit of analog signal, method and device |
| CN112002542A (en) * | 2020-09-21 | 2020-11-27 | 国网湖南省电力有限公司 | Method for reducing distribution transformer operation noise by suppressing user load harmonic |
-
2011
- 2011-10-26 CN CN2011204142643U patent/CN202284970U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076083A (en) * | 2011-10-26 | 2013-05-01 | 无锡闻德科技有限公司 | Sound detection device applied to mobile communication terminal |
| CN103076083B (en) * | 2011-10-26 | 2015-08-05 | 无锡闻德科技有限公司 | Be applied to the sounding apparatus of communication terminal |
| CN104391177A (en) * | 2014-11-17 | 2015-03-04 | 南车青岛四方机车车辆股份有限公司 | System and method for grid-side harmonic testing of CRH unit |
| CN104391177B (en) * | 2014-11-17 | 2017-10-31 | 中车青岛四方机车车辆股份有限公司 | EMUs side harmonics test system and method |
| CN108833790A (en) * | 2018-08-14 | 2018-11-16 | 烟台艾睿光电科技有限公司 | A kind of Acquisition Circuit of analog signal, method and device |
| CN112002542A (en) * | 2020-09-21 | 2020-11-27 | 国网湖南省电力有限公司 | Method for reducing distribution transformer operation noise by suppressing user load harmonic |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108551631A (en) | A kind of sound quality compensation method and mobile terminal | |
| CN107799125A (en) | A kind of audio recognition method, mobile terminal and computer-readable recording medium | |
| CN202284970U (en) | Sounding device applied to mobile communication terminal | |
| CN108668024B (en) | Voice processing method and terminal | |
| CN109348504B (en) | Power detection method, mobile terminal and power detection circuit | |
| CN107645606A (en) | Screen luminance adjustment method, mobile terminal and readable storage medium storing program for executing | |
| CN106126165B (en) | A kind of audio stream processing method and mobile terminal | |
| CN107678614A (en) | A kind of method, equipment and computer-readable recording medium for realizing information alert | |
| CN107562406A (en) | A kind of volume adjusting method, mobile terminal and computer-readable recording medium | |
| CN107147767B (en) | In Call control method, device, storage medium and terminal | |
| CN107643967A (en) | A kind of automatic speech wakes up test device, system and method | |
| CN108196775A (en) | Sectional drawing control method, flexible screen terminal and computer readable storage medium | |
| CN109547894A (en) | A kind of electro-acoustic element amplitude method of adjustment, device and mobile terminal | |
| CN110995909B (en) | Sound compensation method and device | |
| CN106265019A (en) | A kind of vibrations apparatus control method and device | |
| CN106356071A (en) | Noise detection method and device | |
| CN110795188A (en) | Message interaction method and electronic equipment | |
| CN108093119B (en) | Strange incoming call number marking method and mobile terminal | |
| CN107040637A (en) | Eliminate method, mobile terminal and the computer-readable recording medium of current sound | |
| CN103076083B (en) | Be applied to the sounding apparatus of communication terminal | |
| CN106453909A (en) | Power adjusting method and mobile terminal | |
| CN107705804A (en) | A kind of audible device condition detection method and mobile terminal | |
| CN107728990A (en) | A kind of audio frequency playing method, mobile terminal and computer-readable recording medium | |
| CN107291385A (en) | A kind of method and terminal of data write-in | |
| CN107743174B (en) | Clipping judgment method of sound signal and mobile terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120627 Effective date of abandoning: 20150805 |
|
| RGAV | Abandon patent right to avoid regrant |