CN109547894A - A kind of electro-acoustic element amplitude method of adjustment, device and mobile terminal - Google Patents
A kind of electro-acoustic element amplitude method of adjustment, device and mobile terminal Download PDFInfo
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- CN109547894A CN109547894A CN201811246876.9A CN201811246876A CN109547894A CN 109547894 A CN109547894 A CN 109547894A CN 201811246876 A CN201811246876 A CN 201811246876A CN 109547894 A CN109547894 A CN 109547894A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Circuit For Audible Band Transducer (AREA)
Abstract
The embodiment of the present application discloses a kind of electro-acoustic element amplitude method of adjustment, device and mobile terminal, and electro-acoustic element amplitude transfinites caused by solving the problems, such as because of air pressure.This method comprises: obtaining the atmospheric pressure value of electro-acoustic element local environment；Based on the atmospheric pressure value, adjust input signal strength corresponding with the electro-acoustic element or cutoff frequency, make the working amplitude of the electro-acoustic element no more than limit amplitude, so as to avoid electro-acoustic element amplitude from transfiniting, electro-acoustic element amplitude transfinites caused by solving the problems, such as because of air pressure.
Description
Technical field
The present invention relates to field of terminal more particularly to a kind of electro-acoustic element amplitude methods of adjustment, device and mobile terminal.
Background technique
It is universal with mobile terminal, the different region or not also more and more extensive using region, environment of mobile terminal
There are apparent air pressure differences for same environment, for example, the air pressure of plateau region is significantly lower than coastal region, the difference of air pressure sometimes
It can achieve 0.6 standard atmospheric pressure.
Currently, electro-acoustic element is generally fitted in mobile terminal, for example including moving coil receiver and moving-coil type loudspeaking
Device etc..In order to guarantee the normal work of electro-acoustic element, electro-acoustic element generally has certain amplitude limitation, in electro-acoustic element work
Amplitude is not allowed to transfinite.
However, the amplitude of electro-acoustic element can be obviously increased or even be transfinited, and amplitude transfinites easy when entering hypobaric
It generates noise and even damages electro-acoustic element.Therefore, it is necessary to which providing one kind in response to this can protect under different air pressures
The method of electro-acoustic element.
Summary of the invention
The embodiment of the present application provides a kind of electro-acoustic element amplitude method of adjustment, device and mobile terminal, solves to make because of air pressure
At electro-acoustic element amplitude transfinite the problem of.
In order to solve the above-mentioned technical problem, the present invention is implemented as follows:
In a first aspect, providing a kind of electro-acoustic element amplitude method of adjustment, comprising: obtain the gas of electro-acoustic element local environment
Pressure value；Based on the atmospheric pressure value, input signal strength corresponding with the electro-acoustic element or cutoff frequency are adjusted, so that the electricity
The working amplitude of acoustic device is not more than limit amplitude.
Second aspect provides a kind of electro-acoustic element amplitude adjustment apparatus, comprising: atmospheric pressure value obtains module, for obtaining
The atmospheric pressure value of electro-acoustic element local environment；Amplitude adjusts module, for being based on the atmospheric pressure value, adjustment and the electro-acoustic element
Corresponding input signal strength or cutoff frequency, so that the working amplitude of the electro-acoustic element is not more than limit amplitude.
The third aspect provides a kind of mobile terminal, which includes processor, memory and be stored in described deposit
On reservoir and the computer program that can run on the processor, the computer program are realized when being executed by the processor
The step of method as described in relation to the first aspect.
Fourth aspect provides a kind of computer readable storage medium, stores meter on the computer readable storage medium
Calculation machine program, the step of method as described in relation to the first aspect is realized when the computer program is executed by processor.
In the embodiment of the present application, by obtaining the atmospheric pressure value of electro-acoustic element local environment, and based on the air pressure got
Value adjusts input signal strength corresponding with electro-acoustic element or cutoff frequency, so that the working amplitude of electro-acoustic element is not more than pole
Amplitude is limited, can be avoided electro-acoustic element amplitude transfinites, and electro-acoustic element amplitude transfinites caused by solving the problems, such as because of air pressure.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the electro-acoustic element amplitude method of adjustment flow diagram that one embodiment of the present of invention provides；
Fig. 2 is the loadspeaker structure schematic diagram of electro-acoustic element amplitude method of adjustment application provided in an embodiment of the present invention；
Fig. 3 is the hardware structural diagram for realizing electro-acoustic element of embodiment of the present invention amplitude method of adjustment；
Fig. 4 is another schematic diagram of hardware configuration for realizing electro-acoustic element of embodiment of the present invention amplitude method of adjustment；
Fig. 5 is the another schematic diagram of hardware configuration for realizing electro-acoustic element of embodiment of the present invention amplitude method of adjustment；
Fig. 6 is the lower schematic diagram of hardware configuration for realizing electro-acoustic element of embodiment of the present invention amplitude method of adjustment；
Fig. 7 is the electro-acoustic element amplitude adjustment apparatus structural schematic diagram that one embodiment of the present of invention provides；
A kind of hardware structural diagram of Fig. 8 mobile terminal of each embodiment to realize the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in Figure 1, one embodiment of the present of invention provides a kind of electro-acoustic element amplitude method of adjustment, including walk as follows
It is rapid:
S102: the atmospheric pressure value of electro-acoustic element local environment is obtained.
The electro-acoustic element mentioned in each embodiment of this specification, specifically can be dynamic-circular electroacoustic device, not only includes
There is the receiver (also referred to as earpiece) for audio electrical signal to be converted into voice signal, further includes the loudspeaking having for issuing the sound
Device (also referred to as loudspeaker) etc..
For electro-acoustic element local environment, specific place, such as the plateau * *, * meters of * * of height above sea level * of mountain range specifically can be
Upper, seabeach * * etc.；It is also possible to other environment, for example, the laboratory environment of low-temp low-pressure, in closed vehicle environment etc..
The atmospheric pressure value of electro-acoustic element local environment can be the atmospheric pressure value of electro-acoustic element local environment, can be with Pa
For unit, such as 101.325kPa, 90kPa etc.；Can also as unit of standard atmospheric pressure, for example, 0.6 standard atmospheric pressure,
0.8 standard atmospheric pressure, 1 standard atmospheric pressure etc..
When obtaining the atmospheric pressure value of electro-acoustic element local environment in step S102, there can be following numerous embodiments:
The atmospheric pressure value that electro-acoustic element local environment can be obtained by the output valve based on preset pressure, for example, the zund-Burguet apparatus
Part is located in mobile terminal, and barometer namely the barometer are equipped on mobile terminal and electro-acoustic element is in identical environment
Under, the atmospheric pressure value exported by barometer has obtained the atmospheric pressure value of electro-acoustic element local environment.
The electro-acoustic element local environment can be obtained from default port based on the geographical location information of the electro-acoustic element
Atmospheric pressure value, for example, the electro-acoustic element is located in mobile terminal, positioning device is equipped on mobile terminal can obtain shifting in real time
The geographical location information of dynamic terminal, the geographical location information for being then based on mobile terminal go to obtain from the port that Net Meteorological Observatory provides
Take the atmospheric pressure value of electro-acoustic element local environment.
The atmospheric pressure value that user can also be inputted is as the atmospheric pressure value of electro-acoustic element local environment.
Certainly, in order to improve the accuracy of the atmospheric pressure value got, which can be combined with a variety of acquisition modes and obtains
The atmospheric pressure value for taking electro-acoustic element local environment, the multiple atmospheric pressure values that then will acquire are averaging as electro-acoustic element local environment
Atmospheric pressure value, improve the accuracy of the atmospheric pressure value got；In addition, present embodiments providing a variety of realizations for obtaining atmospheric pressure value
Mode is simply easily achieved.
S104: being based on the atmospheric pressure value, adjusts input signal strength corresponding with the electro-acoustic element or cutoff frequency, makes
The working amplitude of the electro-acoustic element is not more than limit amplitude.
The input signal strength that the atmospheric pressure value that step S104 specifically can be determined and be got matches；It is then based on described
Input signal strength adjusts the amplitude of the electro-acoustic element no more than limit amplitude.
Under the embodiment, it is previously stored with multiple atmospheric pressure values and distinguishes matched multiple input signal strengths, multiple air pressures
Value and matched multiple input signal strength positive correlations namely atmospheric pressure value are bigger, and input signal strength is also bigger；Conversely, air pressure
It is worth smaller, input signal strength is also smaller.
In the embodiment, input signal strength is controlled by the input resistance of the electro-acoustic element, can be by adjusting defeated
The resistance value adjustment electro-acoustic element working amplitude for entering resistance does not transfinite, and pure hardware realization is simple and reliable, and does not interfere with electroacoustic
The sound quality of device.
Optionally, step S104 can specifically determine the cutoff frequency to match with the atmospheric pressure value；Based on described section
Only frequency adjusts the amplitude of the electro-acoustic element no more than limit amplitude.
Under the embodiment, cutoff frequency can be to be controlled by the filter capacitor of electro-acoustic element；Meanwhile it being previously stored with more
A atmospheric pressure value distinguishes matched multiple cutoff frequencies, and the multiple atmospheric pressure value and matched multiple cutoff frequencies are negatively correlated.
The embodiment, which can adjust electro-acoustic element working amplitude by adjusting the capacitive reactance of filter capacitor, not to transfinite, pure hardware
It realizes, it is simple and reliable, and do not interfere with the sound quality of electro-acoustic element.
The embodiment of the present application here it is shown that aforementioned rapid S104 two kinds of specific implementations.It should be understood, of course, that step
S104 can also realize in other manners, the embodiment of the present application to this with no restriction.
In the embodiment of the present application, by obtaining the atmospheric pressure value of electro-acoustic element local environment, and based on the air pressure got
Value adjusts input signal strength corresponding with electro-acoustic element or cutoff frequency, makes the working amplitude of electro-acoustic element no more than the limit
Amplitude avoids electro-acoustic element amplitude from transfiniting, and electro-acoustic element amplitude transfinites caused by solving the problems, such as because of air pressure.
Optionally, above-described embodiment can obtain the atmospheric pressure value of electro-acoustic element local environment before electro-acoustic element work,
The working amplitude for adjusting the electro-acoustic element based on the atmospheric pressure value is not more than limit amplitude, can realize in advance to electro-acoustic element
Protection.
Optionally, above-described embodiment can obtain the air pressure of electro-acoustic element local environment in real time when electro-acoustic element works
Value, and limit amplitude is not more than based on the working amplitude that the atmospheric pressure value adjusts the electro-acoustic element, it realizes to electro-acoustic element more
Accurate real-time guard.
It is specific below with reference to two for electro-acoustic element amplitude method of adjustment provided by the embodiments of the present application is described in detail
Embodiment is illustrated.
Below by electro-acoustic element be loudspeaker for be introduced, it will be understood that following embodiments be applied equally to by
Talk about other electro-acoustic elements such as device.
Fig. 2 is loudspeaker provided by the embodiments of the present application, as shown in Fig. 2, specifically including that
Bracket 201 is mainly used for fixed magnet 202 and vibrating diaphragm 204, is that the primary structural support of entire loudspeaker monomer is made
With.
Magnet 202 can be permanent magnet, be fixed on the bracket 201 of lower section that main function is to generate stable magnetic field ring
Border.
Coil 203, can be and be entwined by thin copper wire, is fixed on 204 lower section of vibrating diaphragm, wraps up magnet 202.Work as coil
203 can generate magnetism when being powered, and generate magnetic force moving coil 202 with magnet 202 and vibrating diaphragm 204 is driven to move.In addition, coil 203
There is elastic slice to be connected with external circuit (not shown) below bracket 201, input signal is transferred to coil 203 by external circuit.
Vibrating diaphragm 204 is fixed on bracket 201, and lower section is connected with coil 203, pushes air to generate when vibrating diaphragm 204 moves
Sound.
When speaker operation shown in Fig. 2, outside can access input signal, by the coil 203 of loudspeaker, coil at this time
203 generate under magnetic field and the interaction of permanent magnet 202, and coil 203 can generate displacement, and push vibrating diaphragm 204, and vibrating diaphragm 204 pushes
Air generates the sound of specific frequency, i.e. sounding.
The limiting case of speaker operation: there is maximum limitation in the displacement of the diaphragm of loudspeaker 204, that is, have the displacement upper limit.When
When no more than the amplitude upper limit (namely limit amplitude), loudspeaker belongs to normal work, and when being more than the amplitude upper limit, it will cause raise
The excessive deformation of sound device vibrating diaphragm 204 causes permanent damage or thoroughly failure；On the other hand it is, since vibrating diaphragm 204 is excessively drawn
It stretches and may cause falling off or break and causing the damage of loudspeaker for coil 203.
Based on loudspeaker shown in Fig. 2, the input signal strength of input loudspeaker can be reduced by intelligence to solve to raise
The problem of amplitude transfinites when sound device is in hypobaric, will be explained in detail below.
The embodiment can model speaker system before executing, i.e., confirmation is for raising under different atmospheric pressure values
Sound device reach capacity amplitude when corresponding input signal strength.
Optionally, as shown in figure 3, can lead to when the power amplifier PA (abbreviation power amplifier) of loudspeaker uses simulation input
Cross that the mode in input channel series resistance carries out the decaying of input signal signal namely concatenated resistance value is bigger, input signal
Intensity is smaller.Therefore, can be by under different atmospheric pressure values, requirement for input signal strength is converted into the impedance of input resistance
Value requires.
Under a kind of embodiment, atmospheric pressure value, input signal strength and the resistance of cooperation are referring to table 1, in table 1,
Multiple atmospheric pressure values and matched multiple input signal strengths are positively correlated；Multiple input signal strengths and the input resistance to match are negative
It is related.
Table 1
| Atmospheric pressure value | Input signal strength | Concatenated resistance value |
| 1 standard atmospheric pressure | 500mV | 0R |
| 0.8 standard atmospheric pressure | 400mV | 30R |
| 0.7 standard atmospheric pressure | 300mV | 60R |
| 0.6 standard atmospheric pressure | 200mV | 90R |
By aforesaid operations, described in which can obtain before speaker operation or when speaker operation
The atmospheric pressure value of electro-acoustic element local environment, and matched with the atmospheric pressure value in table 1, by selecting corresponding resistance value
Realize that the working amplitude of loudspeaker is not more than limit amplitude.
As shown in figure 3, being illustrated in fig. 3 shown below in the embodiment of the present application for using the power amplifier PA of simulation input that can use
Framework.The resistance value for changing input channel can cooperate different resistance to realize by multiway analog switch.Input impedance is got higher
When, the opposite intensity of the received input signal of power amplifier PA input port is to reduce, in the situation that power amplifier PA amplification factor is constant
Under, the input signal strength of loudspeaker is reduced, to play reduction output volume, reduces the purpose of speaker operation amplitude.
Optionally, for the power amplifier PA of digital signal input, as shown in figure 4, then multiple resistance can be integrated into power amplifier
Inside PA, carry out selecting different resistance by the control mode of IC bus IIC or general I/O port GPIO
Value, to achieve the effect that reduce hardware volume.
Below with reference to table 1, the workflow of the present embodiment is introduced: before speaker operation, or being raised
Sound device obtains the atmospheric pressure value of the loudspeaker local environment when working；
If atmospheric pressure value is greater than or equal to standard atmospheric pressure, analog switch controls the access of 0R resistance；
If pressure value is less than standard atmospheric pressure and is greater than or equal to 0.8 standard atmospheric pressure, analog switch control 30R resistance is connect
Enter；
If pressure value is less than 0.8 standard atmospheric pressure and is greater than or equal to 0.7 standard atmospheric pressure, analog switch controls 60R electricity
Resistance access；
If pressure value is less than 0.7 standard atmospheric pressure and is greater than or equal to 0.6 standard atmospheric pressure, analog switch controls 90R electricity
Resistance access；
If pressure value controls loudspeaker and stops playing, to protect to loudspeaker less than 0.6 standard atmospheric pressure.
The embodiment of the present application is realized by pure hardware mode, is realized simple and reliable；Reduced by way of series resistance defeated
Enter signal strength, will not influence the outer playback matter of loudspeaker.
Optionally, the embodiment of the present application can be applied in receiver.
The embodiment of the present application is raised in the case where not influencing software and whole aircraft reliability by the cooperation realization of hardware circuit
Amplitude adjustment of the sound device in low pressure；Consumer's manual configuration can be not necessarily to according to different air pressure automatic adaptations；Make to disappear
Expense person normal use loudspeaker and receiver can not have to concern the risk of damage under high altitude localities (low pressure) environment.
It, can be by the filter parameter of adjustment input electrical signal, to solve loudspeaking based on loudspeaker shown in Fig. 2
The problem of amplitude transfinites when device is in hypobaric, will be explained in detail below.
The embodiment can model speaker system before executing, i.e., confirmation is for raising under different atmospheric pressure values
Sound device reach capacity amplitude when corresponding cutoff frequency.
In view of the big part of loudspeaker vibration intensity is concentrated mainly on low frequency region, the amplitude in medium-high frequency region is smaller,
If it is possible to individually handle low frequency part, the adjustment for speaker operation amplitude equally may be implemented.
The embodiment can model speaker system before executing, i.e., confirmation is for raising under different atmospheric pressure values
Sound device reach capacity amplitude when corresponding cutoff frequency.
Under a kind of embodiment, atmospheric pressure value, cutoff frequency and the capacitance of cooperation are referring to table 2, in table 2, Duo Geqi
Pressure value and matched multiple cutoff frequencies are negatively correlated；Multiple cutoff frequencies and the capacitance to match are negatively correlated.
Table 2
| Atmospheric pressure value | Cutoff frequency | Capacitance in parallel |
| 1 standard atmospheric pressure | 250Hz | 2uF |
| 0.8 standard atmospheric pressure | 500Hz | 1uF |
| 0.7 standard atmospheric pressure | 700Hz | 0.71uF |
| 0.6 standard atmospheric pressure | 900Hz | 0.56uF |
As shown in figure 5, being illustrated in fig. 5 shown below in the embodiment of the present application for using the power amplifier PA of simulation input that can use
Framework.Adjustment input filter capacitor mode carries out signal decaying, it can low frequency electrical signal will be inputted under different air pressures
The requirement of intensity is converted into the capacitance of shunt capacitance.Above-mentioned capacitor has 2 effects, and an effect is to be used for isolated DC signal,
It is another to function as high-pass filter use, i.e., decay to low frequency signal；According to following cutoff frequency calculation formula:
As capacitance CInputWhen variation, the value of F also changes therewith, i.e., by adjusting CInput, in RInputBeing in the case where constant can
To change F's.
When F is bigger, the decaying of low frequency is vibration width more severe, and that loudspeaker can be obtained from the amplitude rule of loudspeaker
Degree is typically all low frequency part greatly, therefore the method by increasing F can inhibit low frequency to reduce the working amplitude of loudspeaker.
By aforesaid operations, described in which can obtain before speaker operation or when speaker operation
The atmospheric pressure value of electro-acoustic element local environment, when recognizing atmospheric pressure value variation, the value (capacitive reactance) by changing capacitor be can be realized
The working amplitude of loudspeaker is not more than limit amplitude.
Optionally, as shown in fig. 6, can be then integrated into capacitor in power amplifier PA for the power amplifier PA that digital signal inputs
Portion carries out selecting different capacitances by the adjustment mode of IC bus IIC or general I/O port GPIO.
The embodiment of the present application is realized by pure hardware mode, is realized simple and reliable；Increased by way of shunt capacitance and is cut
Only frequency will not influence the outer playback matter of loudspeaker；As shown in fig. 6, multiple capacitors can be integrated into inside power amplifier PA, reduce
Hardware volume.Optionally, the embodiment of the present application can be applied in receiver.
The embodiment of the present application passes through matching for sensor and hardware circuit in the case where not influencing software and whole aircraft reliability
Close the working amplitude adjustment for realizing loudspeaker in low pressure；Consumer can be not necessarily to according to different air pressure automatic adaptations
Manual configuration；Normal use loudspeaker and receiver under high altitude localities (low pressure) environment is enabled the customer to not have to concern
The risk of damage.
Below with reference to table 2, the workflow of the present embodiment is introduced: before speaker operation, or being raised
Sound device obtains the atmospheric pressure value of the loudspeaker local environment when working；
If atmospheric pressure value is greater than or equal to standard atmospheric pressure, analog switch controls the access of 2uF capacitor；
If pressure value is less than standard atmospheric pressure and is greater than or equal to 0.8 standard atmospheric pressure, analog switch control 1uF capacitor is connect
Enter；
If pressure value is less than 0.8 standard atmospheric pressure and is greater than or equal to 0.7 standard atmospheric pressure, analog switch controls 0.71uF
Capacitor access；
If pressure value is less than 0.7 standard atmospheric pressure and is greater than or equal to 0.6 standard atmospheric pressure, analog switch controls 0.56uF
Capacitor access；
If pressure value controls loudspeaker and stops playing, to protect to loudspeaker less than 0.6 standard atmospheric pressure.
Combine Fig. 1 to Fig. 6 that the electro-acoustic element amplitude method of adjustment according to the embodiment of the present application is described in detail above.Below
Fig. 7 detailed description will be combined according to the electro-acoustic element amplitude adjustment apparatus 700 of the embodiment of the present application, Fig. 7 is according to the application reality
Apply the structural schematic diagram of the electro-acoustic element amplitude adjustment apparatus 700 of example.As shown in fig. 7, electro-acoustic element amplitude adjustment apparatus 700 wraps
It includes:
Atmospheric pressure value obtains module 702, can be used for obtaining the atmospheric pressure value of electro-acoustic element local environment；
Amplitude adjusts module 704, can be used for adjusting input letter corresponding with the electro-acoustic element based on the atmospheric pressure value
Number intensity or cutoff frequency, so that the working amplitude of the electro-acoustic element is not more than limit amplitude.
In the embodiment of the present application, by obtaining the atmospheric pressure value of electro-acoustic element local environment, and based on the air pressure got
Value adjusts input signal strength corresponding with electro-acoustic element or cutoff frequency, makes the working amplitude of electro-acoustic element no more than the limit
Amplitude, can be avoided electro-acoustic element amplitude transfinites, and electro-acoustic element amplitude transfinites caused by solving the problems, such as because of air pressure.
Optionally, as one embodiment, the amplitude adjusts module 704, is determined for and the atmospheric pressure value phase
Matched input signal strength, wherein the input signal strength is controlled by the input resistance of the electro-acoustic element；
Make the working amplitude of the electro-acoustic element no more than limit amplitude based on the input signal strength.
Optionally, as one embodiment, the amplitude adjusts module 704, is determined for and the atmospheric pressure value phase
Matched cutoff frequency, wherein the cutoff frequency is controlled by the filter capacitor of the electro-acoustic element；
Make the working amplitude of the electro-acoustic element no more than limit amplitude based on the cutoff frequency.
Optionally, as one embodiment, the atmospheric pressure value obtains module 702, can be used in the electro-acoustic element work
The atmospheric pressure value of the electro-acoustic element local environment is obtained before making；Or
The atmospheric pressure value of the electro-acoustic element local environment is obtained in electro-acoustic element work.
Optionally, as one embodiment, the atmospheric pressure value obtains module 702, can be used for executing following at least one:
Output valve based on preset pressure obtains the atmospheric pressure value of the electro-acoustic element local environment；And
Based on the geographical location information of the electro-acoustic element, the atmospheric pressure value of the electro-acoustic element local environment is obtained.
Before being referred to corresponding the embodiment of the present application according to the electro-acoustic element amplitude adjustment apparatus 700 of the embodiment of the present application
The process of the electro-acoustic element amplitude method of adjustment of text, also, each unit/mould in the electro-acoustic element amplitude adjustment apparatus 700
Block and other above-mentioned operation and/or functions are respectively in order to realize the corresponding process in above-mentioned electro-acoustic element amplitude method of adjustment
Succinct, details are not described herein.
A kind of hardware structural diagram of Fig. 8 mobile terminal of each embodiment to realize the present invention, the mobile terminal 800
Including but not limited to: radio frequency unit 801, audio output unit 803, input unit 804, sensor 805, is shown network module 802
Show the components such as unit 806, user input unit 807, interface unit 808, memory 809, processor 810 and power supply 811.
It will be understood by those skilled in the art that mobile terminal structure shown in Fig. 8 does not constitute the restriction to mobile terminal, it is mobile whole
End may include perhaps combining certain components or different component layouts than illustrating more or fewer components.In the application
In embodiment, mobile terminal includes but is not limited to mobile phone, tablet computer, laptop, palm PC, car-mounted terminal, can wear
Wear equipment and pedometer etc..
Wherein, processor 810 are based on the atmospheric pressure value for obtaining the atmospheric pressure value of electro-acoustic element local environment, adjustment with
The corresponding input signal strength of the electro-acoustic element or cutoff frequency, make the working amplitude of the electro-acoustic element shake no more than the limit
Width.
By obtaining the atmospheric pressure value of electro-acoustic element local environment, and based on the atmospheric pressure value got, adjustment and electro-acoustic element
Corresponding input signal strength or cutoff frequency make the working amplitude of electro-acoustic element no more than limit amplitude, can be avoided electroacoustic
Device amplitude transfinites, and electro-acoustic element amplitude transfinites caused by solving the problems, such as because of air pressure.
It should be understood that the embodiment of the present application in, radio frequency unit 801 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 810 handle；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 801 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 801 can also by wireless communication system and network and other set
Standby communication.
Mobile terminal provides wireless broadband internet by network module 802 for user and accesses, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
Audio output unit 803 can be received by radio frequency unit 801 or network module 802 or in memory 809
The audio data of storage is converted into audio signal and exports to be sound.Moreover, audio output unit 803 can also be provided and be moved
The relevant audio output of specific function that dynamic terminal 800 executes is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 803 includes loudspeaker, buzzer and receiver etc..
Input unit 804 is for receiving audio or video signal.Input unit 804 may include graphics processor
(Graphics Processing Unit, GPU) 8041 and microphone 8042, graphics processor 8041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 806.Through graphics processor 8041, treated that picture frame can be deposited
Storage is sent in memory 809 (or other storage mediums) or via radio frequency unit 801 or network module 802.Mike
Wind 8042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be
The format output that mobile communication base station can be sent to via radio frequency unit 801 is converted in the case where telephone calling model.
Mobile terminal 800 further includes at least one sensor 805, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 8061, and proximity sensor can close when mobile terminal 800 is moved in one's ear
Display panel 8061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；It passes
Sensor 805 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared sensor etc. are spent, details are not described herein.
Display unit 806 is for showing information input by user or being supplied to the information of user.Display unit 806 can wrap
Display panel 8061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 8061.
User input unit 807 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 807 include touch panel 8071 and
Other input equipments 8072.Touch panel 8071, also referred to as touch screen collect the touch operation of user on it or nearby
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 8071 or in touch panel 8071
Neighbouring operation).Touch panel 8071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects touch operation bring signal, transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 810, receiving area
It manages the order that device 810 is sent and is executed.Furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Seed type realizes touch panel 8071.In addition to touch panel 8071, user input unit 807 can also include other input equipments
8072.Specifically, other input equipments 8072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, operating stick, details are not described herein.
Further, touch panel 8071 can be covered on display panel 8061, when touch panel 8071 is detected at it
On or near touch operation after, send processor 810 to determine the type of touch event, be followed by subsequent processing device 810 according to touching
The type for touching event provides corresponding visual output on display panel 8061.Although in fig. 8, touch panel 8071 and display
Panel 8061 is the function that outputs and inputs of realizing mobile terminal as two independent components, but in some embodiments
In, can be integrated by touch panel 8071 and display panel 8061 and realize the function that outputs and inputs of mobile terminal, it is specific this
Place is without limitation.
Interface unit 808 is the interface that external device (ED) is connect with mobile terminal 800.For example, external device (ED) may include having
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end
Mouth, port, the port audio input/output (I/O), video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 808 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and
By one or more elements that the input received is transferred in mobile terminal 800 or can be used in 800 He of mobile terminal
Data are transmitted between external device (ED).
Memory 809 can be used for storing software program and various data.Memory 809 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 809 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 810 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 809, and calls and is stored in storage
Data in device 809 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 810 may include one or more processing units；Preferably, processor 810 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 810.
Mobile terminal 800 can also include the power supply 811 (such as battery) powered to all parts, it is preferred that power supply 811
Can be logically contiguous by power-supply management system and processor 810, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
In addition, mobile terminal 800 includes some unshowned functional modules, details are not described herein.
Preferably, the embodiment of the present application also provides a kind of mobile terminal, including processor 810, and memory 809 is stored in
On memory 809 and the computer program that can run on the processor 810, the computer program are executed by processor 810
Each process of the above-mentioned electro-acoustic element amplitude control method embodiment of Shi Shixian, and identical technical effect can be reached, to avoid
It repeats, which is not described herein again.
The embodiment of the present application also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each mistake of above-mentioned electro-acoustic element amplitude control method embodiment when being executed by processor
Journey, and identical technical effect can be reached, to avoid repeating, which is not described herein again.Wherein, the computer-readable storage medium
Matter, such as read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access
Memory, abbreviation RAM), magnetic or disk etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within protection of the invention.
Claims (12)
1. a kind of electro-acoustic element amplitude method of adjustment characterized by comprising
Obtain the atmospheric pressure value of electro-acoustic element local environment；
Based on the atmospheric pressure value, input signal strength corresponding with the electro-acoustic element or cutoff frequency are adjusted, so that the electricity
The working amplitude of acoustic device is not more than limit amplitude.
2. the method as described in claim 1, which is characterized in that described to be based on the atmospheric pressure value, adjustment and the electro-acoustic element
Corresponding input signal strength, so that the working amplitude of the electro-acoustic element is not more than limit amplitude, comprising:
The determining input signal strength to match with the atmospheric pressure value, wherein the input signal strength is by the electro-acoustic element
Input resistance control；
Make the working amplitude of the electro-acoustic element no more than limit amplitude based on the input signal strength.
3. the method as described in claim 1, which is characterized in that described to be based on the atmospheric pressure value, adjustment and the electro-acoustic element
Corresponding cutoff frequency, so that the working amplitude of the electro-acoustic element is not more than limit amplitude, comprising:
The determining cutoff frequency to match with the atmospheric pressure value, wherein filtered electrical of the cutoff frequency by the electro-acoustic element
Hold control；
Make the working amplitude of the electro-acoustic element no more than limit amplitude based on the cutoff frequency.
4. the method as described in claim 1, which is characterized in that the atmospheric pressure value for obtaining electro-acoustic element local environment, comprising:
The atmospheric pressure value of the electro-acoustic element local environment is obtained before electro-acoustic element work；Or
The atmospheric pressure value of the electro-acoustic element local environment is obtained in electro-acoustic element work.
5. such as the described in any item methods of Claims 1-4, which is characterized in that the gas for obtaining electro-acoustic element local environment
Pressure value includes following at least one:
Output valve based on preset pressure obtains the atmospheric pressure value of the electro-acoustic element local environment；And
Based on the geographical location information of the electro-acoustic element, the atmospheric pressure value of the electro-acoustic element local environment is obtained.
6. a kind of electro-acoustic element amplitude adjustment apparatus characterized by comprising
Atmospheric pressure value obtains module, for obtaining the atmospheric pressure value of electro-acoustic element local environment；
Amplitude adjusts module, for being based on the atmospheric pressure value, adjusting input signal strength corresponding with the electro-acoustic element or cutting
Only frequency, so that the working amplitude of the electro-acoustic element is not more than limit amplitude.
7. device as claimed in claim 6, which is characterized in that
The amplitude adjusts module, for the determining input signal strength to match with the atmospheric pressure value, wherein the input letter
Number intensity is controlled by the input resistance of the electro-acoustic element；
Make the working amplitude of the electro-acoustic element no more than limit amplitude based on the input signal strength.
8. device as claimed in claim 6, which is characterized in that
The amplitude adjusts module, for the determining cutoff frequency to match with the atmospheric pressure value, wherein the cutoff frequency by
The filter capacitor of the electro-acoustic element controls；
Make the working amplitude of the electro-acoustic element no more than limit amplitude based on the cutoff frequency.
9. device as claimed in claim 6, which is characterized in that
The atmospheric pressure value obtains module, for obtaining the gas of the electro-acoustic element local environment before electro-acoustic element work
Pressure value；Or
The atmospheric pressure value of the electro-acoustic element local environment is obtained in electro-acoustic element work.
10. such as the described in any item devices of claim 6 to 9, which is characterized in that
The atmospheric pressure value obtains module, for executing following at least one:
Output valve based on preset pressure obtains the atmospheric pressure value of the electro-acoustic element local environment；And
Based on the geographical location information of the electro-acoustic element, the atmospheric pressure value of the electro-acoustic element local environment is obtained.
11. a kind of mobile terminal characterized by comprising memory, processor and be stored on the memory and can be in institute
The computer program run on processor is stated, such as claim 1 to 5 is realized when the computer program is executed by the processor
Any one of described in method the step of.
12. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program, the step of method as described in any one of claims 1 to 5 is realized when the computer program is executed by processor.
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| CN109547894B (en) | 2021-06-29 |
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