CN106658289B - A kind of loudspeaker self-adaptive regulating and method - Google Patents
A kind of loudspeaker self-adaptive regulating and method Download PDFInfo
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- CN106658289B CN106658289B CN201611086725.2A CN201611086725A CN106658289B CN 106658289 B CN106658289 B CN 106658289B CN 201611086725 A CN201611086725 A CN 201611086725A CN 106658289 B CN106658289 B CN 106658289B
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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
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a kind of loudspeaker self-adaptive regulating and method, described device includes: amplitude measurement module, control module and output module, the amplitude measurement module, for measuring diaphragm of loudspeaker amplitude；The control module, for when determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, the power that reduction is input to the voice signal of loudspeaker to be the first power；The output module, for according to power output voice signal adjusted.By measuring diaphragm of loudspeaker amplitude; when determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold; reduce the power for being input to the voice signal of loudspeaker; it is adaptively adjusted to realize according to voice signal power of the diaphragm of loudspeaker amplitude to output; the diaphragm of loudspeaker through moisture etc. reasons and in repressed situation, protect loudspeaker from damage.
Description
Technical field
The present invention relates to intelligent terminal technical field, espespecially a kind of loudspeaker self-adaptive regulating and method.
Background technique
Into after the intelligent terminal epoch, the function that mobile terminal is supported is more and more, and existing mobile terminal usually has
Boombox, boombox refer to that mobile terminal has built-in loudspeaker, and such user can not only pass through earphone jack
The sound of mobile terminal sending can also be listened to by boombox.Mobile terminal with boombox, can not
With external speaker, it also can be avoided and wear inconvenience brought by earphone for a long time.Using loudspeaker as external speaker, sound channel
Audio is after digital signal processing unit completes low-pass filtering, analog-to-digital conversion, Digital Signal Processing, via audio power amplifier unit
After i.e. power amplifier carries out power amplification, through being put outside loudspeaker.
The principle of sound of loudspeaker can be briefly summarized as follows: the magnetic field of loudspeaker is generated by magnet.Coil is then placed in described
In magnetic field.When passing through coil as the signal instruction of carrier using alternating current will cutting magnetic induction line so that coil is in electromagnetism sense
It is shaken under the influence of answering.Vibrating diaphragm vibration is driven by the vibration of coil.Vibrating diaphragm stretches repeatedly and compresses neighbouring air, that is, produces
Raw sound wave.
In actual use, in the vibrating diaphragm of loudspeaker because of certain reason in repressed situation, such as loudspeaker dampness
Function is affected afterwards, and the air flowing from the diaphragm of loudspeaker slows down the heat dissipation for the heat for even stopping, therefore generating in coil
Efficiency reduces, and at this time if also playing voice signal with normal power, easily causes the mechanical damage of loudspeaker.
Summary of the invention
It is the general introduction to the theme being described in detail herein below.This general introduction is not the protection model in order to limit claim
It encloses.
The embodiment of the invention provides a kind of loudspeaker self-adaptive regulating and methods, carry out outside sound in mobile terminal
According to the voice signal power of loudspeaker amplitude adjustment output when putting, protection loudspeaker is against damages.
To achieve the goals above, the embodiment of the invention provides a kind of loudspeaker self-adaptive regulatings, comprising: amplitude
Measurement module, control module and output module,
The amplitude measurement module, for measuring diaphragm of loudspeaker amplitude；
The control module, for reducing when determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold
The power for being input to the voice signal of loudspeaker is the first power；
The output module, for according to power output voice signal adjusted.
Optionally,
The control module determines diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, comprising:
It determines diaphragm of loudspeaker amplitude and is less than or equal to the lowest amplitude that loudspeaker works normally, or determine and raise
Sound device vibrating diaphragm amplitude is less than or equal to the default amplitude higher than lowest amplitude.
Optionally,
The control module is also used to press when determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold
According to the corresponding relationship of the vibrating diaphragm amplitude and output power that prestore, the output power of loudspeaker is adjusted.
Optionally, described device further include:
First cue module, for judging that diaphragm of loudspeaker amplitude is less than or equal to the first vibration when the control module
Width threshold value prompts user's loudspeaker abnormal.
Optionally, described device further include:
Second cue module, for judging that diaphragm of loudspeaker amplitude is less than or equal to the first vibration when the control module
Width threshold value prompts user to open power adjustment functions；
Receiving module confirms for receiving user and opens the open instructions of power adjustment functions, and by the open instruction
It exports to control module；Correspondingly,
The control module, for after receiving the open instruction, by adjusting the loudspeaker power amplifier
Output parameter, reduce be input to loudspeaker voice signal power.
The embodiment of the invention also provides a kind of loudspeaker adaptive regulation methods, which comprises
Measure diaphragm of loudspeaker amplitude；
When determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, the sound for being input to loudspeaker is reduced
The power of signal is the first power；
According to power output voice signal adjusted.
Optionally,
The diaphragm of loudspeaker amplitude that determines is less than or equal to the first amplitude threshold, comprising:
It determines diaphragm of loudspeaker amplitude and is less than or equal to the lowest amplitude that loudspeaker works normally, or determine and raise
Sound device vibrating diaphragm amplitude is less than or equal to the default amplitude higher than lowest amplitude.
Optionally, the method also includes:
When determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, according to the vibrating diaphragm amplitude prestored with it is defeated
The corresponding relationship of power out adjusts the output power of loudspeaker.
Optionally, the method also includes:
When judging diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, prompt user's loudspeaker is abnormal.
Optionally, the method also includes:
When judging diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, prompt user opens power adjustment function
Energy；
It receives user and confirms the open instruction for opening power adjustment functions；
After receiving the open instruction, by adjusting the output parameter of the loudspeaker power amplifier, reduce defeated
Enter the power to the voice signal of loudspeaker.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored with computer executable instructions, described
Computer executable instructions, which are performed, realizes the above-mentioned terminal lookup method based on audio-frequency information.
Compared with prior art, loudspeaker self-adaptive regulating provided in an embodiment of the present invention and method, pass through measurement
Diaphragm of loudspeaker amplitude, when determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, reduction, which is input to, is raised
The power of the voice signal of sound device carries out adaptively to realize according to voice signal power of the diaphragm of loudspeaker amplitude to output
Adjustment, the diaphragm of loudspeaker through moisture or other the reason of and in repressed situation, protect loudspeaker from damage.
Preferably meet the demand of user.
After reading and understanding attached drawing and detailed description, it can be appreciated that other aspects.
Detailed description of the invention
Attached drawing is used to provide to further understand technical scheme, and constitutes part of specification, with this
The embodiment of application is used to explain the technical solution of the application together, does not constitute the limitation to technical scheme.Attached
In figure:
The optional hardware structural diagram of Fig. 1 optional mobile terminal of embodiment to realize the present invention；
Fig. 2 is the schematic diagram of loudspeaker self-adaptive regulating provided in an embodiment of the present invention；
Fig. 3 is the flow chart of loudspeaker adaptive regulation method provided in an embodiment of the present invention；
Fig. 4 is the flow chart of the loudspeaker adaptive regulation method of present application example one；
Fig. 5 is the flow chart of the loudspeaker adaptive regulation method of present application example two；
Fig. 6 is the flow chart of the loudspeaker adaptive regulation method of present application example three.
The embodiments will be further described with reference to the accompanying drawings for realization, functional characteristics and the advantage of the application purpose.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the application, it is not used to limit the application.
The mobile terminal of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, use
For indicate element such as " module ", " component " or " unit " suffix only for being conducive to the explanation of the application, itself
There is no specific meanings.Therefore, " module " can be used mixedly with " component ".
Mobile terminal can be implemented in a variety of manners.For example, terminal described in the embodiment of the present invention may include all
Such as mobile phone, smart phone, laptop, digit broadcasting receiver, PDA (personal digital assistant), PAD (plate electricity
Brain), PMP (portable media player), navigation device etc. mobile terminal.
The optional hardware structural diagram of Fig. 1 optional mobile terminal of embodiment to realize the present invention.
Mobile terminal 100 may include wireless communication unit 110, A/V (audio/video) input unit 120, user's input
Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power supply unit 190
Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups shown
Part.More or fewer components can alternatively be implemented.The element of mobile terminal will be discussed in more detail below.
Wireless communication unit 110 generally includes one or more components, allows mobile terminal 100 and wireless communication system
Or the radio communication between network.For example, wireless communication unit may include broadcasting reception module 111, mobile communication module
112, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.
Broadcasting reception module 111 receives broadcast singal and/or broadcast from external broadcast management server via broadcast channel
Relevant information.Broadcast channel may include satellite channel and/or terrestrial channel.Broadcast management server, which can be, to be generated and sent
The broadcast singal and/or broadcast related information generated before the server or reception of broadcast singal and/or broadcast related information
And send it to the server of terminal.Broadcast singal may include TV broadcast singal, radio signals, data broadcasting
Signal etc..Moreover, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Closing information can also provide via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 receives.Broadcast singal can exist in a variety of manners, for example, it can be with the electronics of digital multimedia broadcasting (DMB)
Program guide (EPG), digital video broadcast-handheld (DVB-H) electronic service guidebooks (ESG) etc. form and exist.Broadcast
Receiving module 111 can receive signal broadcast by using various types of broadcast systems.Particularly, broadcasting reception module 111
It can be wide by using such as multimedia broadcasting-ground (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video
It broadcasts-holds (DVB-H), forward link media (MediaFLO@) Radio Data System, received terrestrial digital broadcasting integrated service
(ISDB-T) etc. digit broadcasting system receives digital broadcasting.Broadcasting reception module 111, which may be constructed such that, to be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via the received broadcast singal of broadcasting reception module 111 and/
Or broadcast related information can store in memory 160 (or other types of storage medium).
Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal may include that voice is logical
Talk about signal, video calling signal or according to text and/or Multimedia Message transmission and/or received various types of data.
The Wi-Fi (Wireless Internet Access) of the support mobile terminal of wireless Internet module 113.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved in the module may include WLAN (Wireless LAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting short range communication.Some examples of short-range communication technology include indigo plant
ToothTM, radio frequency identification (RFID), Infrared Data Association (IrDA), ultra wide band (UWB), purple honeybeeTMEtc..
Location information module 115 is the module for checking or obtaining the location information of mobile terminal.Location information module
Typical case be GPS (global positioning system).According to current technology, GPS module 115, which calculates, comes from three or more satellites
Range information and correct time information and the Information application triangulation for calculating, thus according to longitude, latitude
Highly accurately calculate three-dimensional current location information.Currently, it is defended for the method for calculating position and temporal information using three
Star and the error that calculated position and temporal information are corrected by using an other satellite.In addition, GPS module 115
It can be by Continuous plus current location information in real time come calculating speed information.
A/V input unit 120 is for receiving audio or video signal.A/V input unit 120 may include 121 He of camera
Microphone 1220, camera 121 is to the static map obtained in video acquisition mode or image capture mode by image capture apparatus
The image data of piece or video is handled.Treated, and picture frame may be displayed on display unit 151.At camera 121
Picture frame after reason can store in memory 160 (or other storage mediums) or carry out via wireless communication unit 110
It sends, two or more cameras 1210 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone relation mould
Sound (audio data) is received via microphone in formula, logging mode, speech recognition mode etc. operational mode, and can be incited somebody to action
Such acoustic processing is audio data.Audio that treated (voice) data can be converted in the case where telephone calling model
For the format output that can be sent to mobile communication base station via mobile communication module 112.Various types can be implemented in microphone 122
Noise eliminate (or inhibit) algorithm with eliminate noise that (or inhibition) generates during sending and receiving audio signal or
Person's interference.
The order that user input unit 130 can be inputted according to user generates key input data to control each of mobile terminal
Kind operation.User input unit 130 allows user to input various types of information, and may include keyboard, metal dome, touch
Plate (for example, the sensitive component of detection due to the variation of resistance, pressure, capacitor etc. caused by being contacted), idler wheel, rocking bar etc.
Deng.Particularly, when touch tablet is superimposed upon in the form of layer on display unit 151, touch screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 100, (for example, mobile terminal 100 opens or closes shape
State), the position of mobile terminal 100, user is for the presence or absence of contact (that is, touch input) of mobile terminal 100, mobile terminal
100 orientation, the acceleration or deceleration movement of mobile terminal 100 and direction etc., and generate for controlling mobile terminal 100
The order of operation or signal.For example, sensing unit 140 can sense when mobile terminal 100 is embodied as sliding-type mobile phone
The sliding-type phone is to open or close.In addition, sensing unit 140 be able to detect power supply unit 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 may include that proximity sensor 1410 will combine below
Touch screen is described this.
Interface unit 170 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be storage and use each of mobile terminal 100 for verifying user
It plants information and may include subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM)
Etc..In addition, the device (hereinafter referred to as " identification device ") with identification module can take the form of smart card, therefore, know
Other device can be connect via port or other attachment devices with mobile terminal 100.Interface unit 170, which can be used for receiving, to be come from
The input (for example, data information, electric power etc.) of external device (ED) and the input received is transferred in mobile terminal 100
One or more elements can be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 100 is connect with external base, interface unit 170 may be used as allowing will be electric by it
Power, which is provided from pedestal to the path or may be used as of mobile terminal 100, allows the various command signals inputted from pedestal to pass through it
It is transferred to the path of mobile terminal.The various command signals or electric power inputted from pedestal, which may be used as mobile terminal for identification, is
The no signal being accurately fitted on pedestal.Output unit 150 is configured to provide with vision, audio and/or tactile manner defeated
Signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.) out.Output unit 150 may include display
Unit 151, audio output module 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information handled in mobile terminal 100.For example, when mobile terminal 100 is in electricity
When talking about call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia file
Downloading etc.) relevant user interface (UI) or graphic user interface (GUI).When mobile terminal 100 is in video calling mode
Or when image capture mode, display unit 151 can show captured image and/or received image, show video or figure
Picture and the UI or GUI of correlation function etc..
Meanwhile when display unit 151 and touch tablet in the form of layer it is superposed on one another to form touch screen when, display unit
151 may be used as input unit and output device.Display unit 151 may include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user to watch from outside, this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
Desired embodiment, mobile terminal 100 may include two or more display units (or other display devices), for example, moving
Dynamic terminal may include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detecting touch
Input pressure and touch input position and touch input area.
Audio output module 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
It is when under the isotypes such as speech recognition mode, broadcast reception mode, wireless communication unit 110 is received or in memory 160
The audio data transducing audio signal of middle storage and to export be sound.Moreover, audio output module 152 can provide and movement
The relevant audio output of specific function (for example, call signal receives sound, message sink sound etc.) that terminal 100 executes.
Audio output module 152 may include loudspeaker, buzzer etc..
Alarm unit 153 can provide output notifying event to mobile terminal 100.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..Other than audio or video output, alarm unit
153 can provide output in different ways with the generation of notification event.For example, alarm unit 153 can be in the form of vibration
Output is provided, when receiving calling, message or some other entrance communications (incoming communication), alarm list
Member 153 can provide tactile output (that is, vibration) to notify to user.By providing such tactile output, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can be provided via display unit 151 or audio output module 152.
Memory 160 can store the software program etc. of the processing and control operation that are executed by controller 180, Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And memory 160 can store about the vibrations of various modes and audio signal exported when touching and being applied to touch screen
Data.
Memory 160 may include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, more
Media card, card-type memory (for example, SD or DX memory etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..Moreover, mobile terminal 100 can execute memory with by network connection
The network storage device of 160 store function cooperates.
The overall operation of the usually control mobile terminal of controller 180.For example, controller 180 executes and voice communication, data
Communication, video calling etc. relevant control and processing.In addition, controller 180 may include for reproducing (or playback) more matchmakers
The multi-media module 1810 of volume data, multi-media module 1810 can construct in controller 180, or can be structured as and control
Device 180 processed separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input executed on the touchscreen or figure
Piece draws input and is identified as character or image.
Power supply unit 190 receives external power or internal power under the control of controller 180 and provides operation each member
Electric power appropriate needed for part and component.
Various embodiments described herein can be to use the calculating of such as computer software, hardware or any combination thereof
Machine readable medium is implemented.Hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), controller, microcontroller, microprocessor, is designed to execute function described herein processor
At least one of electronic unit is implemented, and in some cases, such embodiment can be implemented in controller 180.
For software implementation, the embodiment of such as process or function can with allow to execute the individual of at least one functions or operations
Software module is implemented.Software code can by the software application (or program) write with any programming language appropriate Lai
Implement, software code can store in memory 160 and be executed by controller 180.
So far, oneself is through describing mobile terminal according to its function.In the following, for the sake of brevity, will description such as board-type,
Straight plate type mobile terminal in various types of mobile terminals of oscillating-type, slide type mobile terminal etc. is as example.This hair
Bright embodiment can be applied to a plurality of types of mobile terminals, and be not limited to straight plate type mobile terminal.
Based on above-mentioned mobile terminal hardware configuration, the loudspeaker self-adaptive regulating and method of the embodiment of the present invention are proposed
Each embodiment.
Fig. 2 is the schematic diagram of loudspeaker self-adaptive regulating provided in an embodiment of the present invention, as shown in Fig. 2, the device
It can be carried on the mobile terminals such as mobile phone, put outside sound using the loudspeaker that mobile terminal is arranged in, the present embodiment mentions
The loudspeaker self-adaptive regulating of confession, comprising: amplitude measurement module, control module and output module,
The amplitude measurement module, for measuring diaphragm of loudspeaker amplitude；
The control module, for reducing when determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold
The power for being input to the voice signal of loudspeaker is the first power；
The output module, for according to power output voice signal adjusted.
As an embodiment of the present embodiment, the amplitude measurement module measures diaphragm of loudspeaker amplitude, comprising: root
According to detected vibrating diaphragm induced current in the loop determine the amplitude of the diaphragm of loudspeaker.
As an embodiment of the present embodiment, the control module when determine diaphragm of loudspeaker amplitude be less than or
Equal to first threshold, it is the first power that reduction, which is input to the voice signal power of loudspeaker, comprising:
Power by adjusting the output parameter adjustment output signal of power amplifier is the first power.Here loudspeaking is adjusted
The output parameter of device, is specifically as follows: the power amplifier parameter of loudspeaker is reduced, for example, reducing amplification factor or the reduction of power amplifier
System gain etc., as a result, the output function of loudspeaker is at power bracket when voice signal is exported via loudspeaker
It is interior, loudspeaker will not be damaged.
In the present embodiment, it drives vibration vibration of membrane to be conducted into human ear to push air vibration by coil, draws
It rises and rouses vibration of membrane in human ear to hear sound.Power amplifier is the driving unit of loudspeaker, and loudspeaker needs telecommunications
Number input can just there is sound to come out.After the current feedback detected is to power amplifier, inside power amplifier
DSP (digital processing element) does Digital Signal Analysis, then adjusts to the output electric signal of power amplifier, to make vibrating diaphragm
It works in the state of a safety.Loudspeaker provided in an embodiment of the present invention, by the real amplitude of real-time measurement vibrating diaphragm, simultaneously
As soon as loudspeaker has a minimum amplitude to do standard, the output gain of power amplifier is needed to reduce lower than minimum amplitude,
Output signal is reduced, so that making the amplitude of vibrating diaphragm reduces, loudspeaker is avoided to be destroyed.Therefore, even if vibrating diaphragm is due to dampness etc.
Reason reduced performance also can accurately make feedback, reduce error.
In an embodiment of the present embodiment, first amplitude threshold can be set to loudspeaker normal work
Lowest amplitude, the present embodiment shows when finding the amplitude of loudspeaker already less than the lowest amplitude that can be worked normally as a result,
The vibrating diaphragm of loudspeaker is inhibited, and is in abnormal operational conditions, is needed to be adjusted the output power of loudspeaker at this time.
In another embodiment, first amplitude threshold can be set to a default vibration higher than lowest amplitude
Amplitude, the present embodiment presets amplitude already below this in discovery amplitude as a result, shows if do not reduced to loudspeaker
Power, then loudspeaker may be subjected to damage, mode pretreated in this way can preferably protect loudspeaker.
In the other embodiment of the present embodiment, the control module is also used to determine diaphragm of loudspeaker vibration
Width is less than or equal to the first amplitude threshold, according to the corresponding relationship of the vibrating diaphragm amplitude and output power that prestore, adjusts loudspeaker
Output power.
In the present embodiment, described device further includes memory module, for vibrating diaphragm amplitude and output power to be stored in advance
Corresponding relationship corresponds to table to one.The corresponding relationship of the corresponding table can be provided by mobile-phone manufacturers, preset configuration in mobile phone,
It is also possible to what user was configured according to use demand by mobile phone.
If put outside sound, vibrating diaphragm amplitude changes in mobile phone speaker circuit, then can be according to vibrating diaphragm
The corresponding table of amplitude and the corresponding relationship of output power adjusts power amplifier parameter, so as to adjust the voice signal of output
Power.
In this way, when vibrating diaphragm amplitude is less than the amplitude operated normally in loudspeaker circuit, according to the vibrating diaphragm amplitude that prestores with
The corresponding relationship of output power adjusts the power of the voice signal of output, lowers by reducing the power parameter of power amplifier
Volume.To realize the adaptive adjustment to loudspeaker.
In the other embodiment of the present embodiment, described device further include:
First cue module, for judging that diaphragm of loudspeaker amplitude is less than or equal to the first vibration in the control module
Width threshold value prompts user's loudspeaker abnormal.
Prompt the operation of user can be with when detecting that loudspeaker amplitude has abnormal in this way, the automatic volume that reduces even is stopped
The operation for only playing music carries out simultaneously, at this point, being only that simple prompt user's loudspeaker is abnormal, to notify user's relevant abnormalities
The case where, it does not need user and does any processing.
In other embodiment, the device of the embodiment of the present invention further include:
Second cue module, for judging that diaphragm of loudspeaker amplitude is less than or equal to the first vibration in the control module
Width threshold value prompts user to open power adjustment functions；
Receiving module confirms for receiving user and opens the open instructions of power adjustment functions, and by the open instruction
It exports to control module；
The control module, for after receiving the open instruction, by adjusting the loudspeaker power amplifier
Output parameter, reduce be input to loudspeaker voice signal power.
In the present embodiment, after control module can be in power adjustment scene judging mobile terminal, automatically to function
Rate is adjusted, that is, adjusts the parameter of the loudspeaker power amplifier of the mobile terminal.Alternatively, can also judge to move
After terminal is in power adjustment scene, prompt information is given the user by the second cue module, user is prompted to open power tune
Whole function, after user determines and opens power adjustment functions, control module opens power adjustment function according to the open instruction of user
Can, that is, adjust the parameter of the loudspeaker power amplifier.
In the present embodiment, the control module is also used to after the parameter for reducing loudspeaker power amplifier, is sentencing
It is disconnected go out vibrating diaphragm amplitude when being greater than first amplitude threshold, restore the parameter of the mobile terminal power amplifier.In this way
It can preferably guarantee volume and sound quality, enhance user experience.
When the device of the present embodiment, which is applied to mobile phone, carries out outer sound reproduction sound broadcasting, the environment of surrounding is to change
's.It is frequently encountered the more severe situation of ambient enviroment, such as especially moist.Or the loudspeaker of mobile terminal has been intake
And user does not have found, if playing music using loudspeaker in the case where this loudspeaker is affected, is easy to
Loudspeaker is damaged, if terminal can with the amplitude of real-time detection loudspeaker, when the loudspeaker amplitude of detection has abnormal,
The automatic volume that reduces even stops playing music, and prompts user's loudspeaker abnormal, can guarantee the use of mobile terminal well
Performance enhances user experience.
It should be noted that amplitude measurement module can be in loudspeaker self-adaptive regulating provided in an embodiment of the present invention
It is arranged in the sensing unit 140 of Fig. 1, control module can be set in the controller 180 in Fig. 1, and memory module can be set
It sets in the memory 160 in Fig. 1, the output unit 150 in Fig. 1 can be set in the first cue module and the second cue module
In, receiving module can be set in the user input unit 130 in Fig. 1.
Hardware configuration and loudspeaker self-adaptive regulating based on above-mentioned mobile terminal, propose the embodiment of the present invention
Loudspeaker adaptive regulation method.
Fig. 3 is the flow chart of loudspeaker adaptive regulation method provided in an embodiment of the present invention.As shown in figure 3, this implementation
The loudspeaker adaptive regulation method that example provides is applied in the mobile terminals such as mobile phone, utilizes the loudspeaking that mobile terminal is arranged in
Device put outside sound, the described method comprises the following steps:
Measure diaphragm of loudspeaker amplitude；
When determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, the sound for being input to loudspeaker is reduced
The power of signal is the first power；
According to power output voice signal adjusted.
As an embodiment of the present embodiment, the measurement diaphragm of loudspeaker amplitude, comprising: according to detected
Vibrating diaphragm induced current in the loop determine the amplitude of the diaphragm of loudspeaker.
As an embodiment of the present embodiment, it is first that the reduction, which is input to the voice signal power of loudspeaker,
Power, comprising:
Power by adjusting the output parameter adjustment output signal of power amplifier is the first power.
Here the output parameter for adjusting loudspeaker, is specifically as follows: reducing the power amplifier parameter of loudspeaker, for example, reducing function
Amplification factor for putting reduces system gain etc., as a result, when voice signal is exported via loudspeaker loudspeaker output
Function is in power bracket, will not be damaged to loudspeaker.
In the present embodiment, it drives vibration vibration of membrane to be conducted into human ear to push air vibration by coil, draws
It rises and rouses vibration of membrane in human ear to hear sound.Power amplifier is the driving unit of loudspeaker, and loudspeaker needs telecommunications
Number input can just there is sound to come out.After the current feedback detected is to power amplifier, inside power amplifier
DSP (digital processing element) does Digital Signal Analysis, then adjusts to the output electric signal of power amplifier, to make vibrating diaphragm
It works in the state of a safety.Loudspeaker provided in an embodiment of the present invention, by the real amplitude of real-time measurement vibrating diaphragm, simultaneously
As soon as loudspeaker has a minimum amplitude to do standard, the output gain of power amplifier is needed to reduce lower than minimum amplitude,
Output signal is reduced, so that making the amplitude of vibrating diaphragm reduces, loudspeaker is avoided to be destroyed.Therefore, even if vibrating diaphragm is due to dampness etc.
Reason reduced performance also can accurately make feedback, reduce error.
In an embodiment of the present embodiment, first amplitude threshold can be set to loudspeaker normal work
Lowest amplitude, the present embodiment shows when finding the amplitude of loudspeaker already less than the lowest amplitude that can be worked normally as a result,
The vibrating diaphragm of loudspeaker is inhibited, and is in abnormal operational conditions, is needed to be adjusted the output power of loudspeaker at this time.
In another embodiment, first amplitude threshold can be set to a default vibration higher than lowest amplitude
Amplitude, the present embodiment presets amplitude already below this in discovery amplitude as a result, shows if do not reduced to loudspeaker
Power, then loudspeaker may be subjected to damage, mode pretreated in this way can preferably protect loudspeaker.
In the other embodiment of the present embodiment, the method also includes:
When determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, according to the vibrating diaphragm amplitude prestored with it is defeated
The corresponding relationship of power out adjusts the output power of loudspeaker.
In the present embodiment, the method also includes being stored in advance the corresponding relationship of vibrating diaphragm amplitude and output power to one
Corresponding table.
The corresponding relationship of the corresponding table can be provided by mobile-phone manufacturers, and preset configuration is also possible to use in mobile phone
Family is configured according to use demand by mobile phone.
If put outside sound, vibrating diaphragm amplitude changes in mobile phone speaker circuit, then can be according to vibrating diaphragm
The corresponding table of amplitude and the corresponding relationship of output power adjusts power amplifier parameter, so as to adjust the voice signal of output
Power.In this way, when vibrating diaphragm amplitude is less than the amplitude operated normally in loudspeaker circuit, according to the vibrating diaphragm amplitude and output prestored
The corresponding relationship of power adjusts the power of the voice signal of output, lowers sound by reducing the power parameter of power amplifier
Amount.To realize the adaptive adjustment to loudspeaker.
In the other embodiment of the present embodiment, the method also includes:
When judging diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, prompt user's loudspeaker is abnormal.
Prompt the operation of user can be with when detecting that loudspeaker amplitude has abnormal in this way, the automatic volume that reduces even is stopped
The operation for only playing music carries out simultaneously, at this point, being only that simple prompt user's loudspeaker is abnormal, to notify user's relevant abnormalities
The case where, it does not need user and does any processing.
In other embodiment, the method for the embodiment of the present invention further include:
Diaphragm of loudspeaker amplitude is being judged less than or equal to the first amplitude threshold, and prompt user opens power adjustment function
Energy；
It receives user and confirms the open instruction for opening power adjustment functions；
After receiving the open instruction, by adjusting the output parameter of the loudspeaker power amplifier, reduce defeated
Enter the power to the voice signal of loudspeaker.
In the present embodiment, after power adjustment scene being in judging mobile terminal, power is adjusted automatically
It is whole, that is, adjust the parameter of the loudspeaker power amplifier of the mobile terminal.Alternatively, can also be in judging mobile terminal
After power adjustment scene, by giving the user prompt information, prompts user to open power adjustment functions, determine and open in user
After power adjustment functions, power adjustment functions are opened according to the open instruction of user, that is, adjust the power of loudspeaker amplification
The parameter of device.
In the present embodiment, the method also includes: reduce loudspeaker power amplifier parameter after, judging
When the vibrating diaphragm amplitude is greater than first amplitude threshold, restore the parameter of the mobile terminal power amplifier.It in this way can be with
Preferably guarantee volume and sound quality, enhances user experience.
Other are referred to above-mentioned loudspeaker about the processing details of the loudspeaker adaptive regulation method and adaptively adjust
The description of regulating device, therefore repeated no more in this.
Illustrate the application of the present processes embodiment below by way of multiple examples.
Example one
Fig. 4 is the flow chart of the loudspeaker adaptive regulation method of present application example one.As shown in figure 4, this example provides
Method the following steps are included:
Step 401: when user plays game, unlatching sound outer playing function；
Step 402: measurement diaphragm of loudspeaker amplitude；
Step 403: judging whether diaphragm of loudspeaker amplitude is less than or equal to the first amplitude threshold；It is to then follow the steps
404, it is no to then follow the steps 402；
Step 404: reducing and being input to the power of the voice signal of loudspeaker is the first power；
Step 405: according to power output voice signal adjusted.
In this example, after judging that mobile terminal is in power adjustment scene, power is adjusted automatically, that is, is adjusted
The parameter of the loudspeaker power amplifier of the whole mobile terminal specially reduces the power for being input to the voice signal of loudspeaker
For the first power, and according to power output voice signal adjusted.
Example two:
Fig. 5 is the flow chart of the loudspeaker adaptive regulation method of present application example two.As shown in figure 5, this example provides
Method the following steps are included:
Step 501: when user listens to music, opening sound outer playing function；
Step 502: measurement diaphragm of loudspeaker amplitude；
Step 503: judging whether diaphragm of loudspeaker amplitude is less than or equal to the first amplitude threshold；It is to then follow the steps
504, it is no to then follow the steps 502；
Step 504: prompt user's loudspeaker is abnormal；
Step 505: reducing and being input to the power of the voice signal of loudspeaker is the first power；
Step 506: according to power output voice signal adjusted.
In this example, after judging that mobile terminal is in power adjustment scene, power is adjusted automatically, that is, is adjusted
The parameter of the loudspeaker power amplifier of the whole mobile terminal, while the case where notify user's relevant abnormalities, do not need user
Do any processing.
Example three:
Fig. 6 is the flow chart of the loudspeaker adaptive regulation method of present application example three.As shown in fig. 6, this example provides
Method the following steps are included:
Step 601: when user listens to music, opening sound outer playing function；
Step 602: measurement diaphragm of loudspeaker amplitude；
Step 603: judging whether diaphragm of loudspeaker amplitude is less than or equal to the first amplitude threshold；It is to then follow the steps
604, it is no to then follow the steps 602；
Step 604: prompt user opens power adjustment functions；
Step 605: receiving user and confirm the open instruction for opening power adjustment functions；
Step 606: after receiving the open instruction, joining by adjusting the output of the loudspeaker power amplifier
Number, reducing and being input to the power of the voice signal of loudspeaker is the first power；
Step 607: according to power output voice signal adjusted.
In this example, after judging that mobile terminal is in power adjustment scene, by giving the user prompt information,
It prompts user to open power adjustment functions, after user determines and opens power adjustment functions, is opened according to the open instruction of user
Power adjustment functions adjust the parameter of the loudspeaker power amplifier.
The embodiment of the present invention is less than or equal to by measurement diaphragm of loudspeaker amplitude when determining diaphragm of loudspeaker amplitude
When the first amplitude threshold, the power for being input to the voice signal of loudspeaker is reduced, to realize according to diaphragm of loudspeaker amplitude pair
The voice signal power of output is adaptively adjusted, the diaphragm of loudspeaker through moisture or other the reason of and it is repressed
In the case of, protect loudspeaker from damage.Preferably meet the demand of user.
In addition, the embodiment of the present invention also provides a kind of computer readable storage medium, computer executable instructions are stored with,
The computer executable instructions, which are performed, realizes the above-mentioned terminal lookup method based on audio-frequency information.
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.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
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 device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (8)
1. a kind of loudspeaker self-adaptive regulating characterized by comprising amplitude measurement module, control module and output mould
Block,
The amplitude measurement module, for measuring diaphragm of loudspeaker amplitude；
The control module, for reducing input when determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold
Power to the voice signal of loudspeaker is the first power；
The output module, for according to power output voice signal adjusted；
The control module determines diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, comprising:
It determines diaphragm of loudspeaker amplitude and is less than or equal to the lowest amplitude that loudspeaker works normally, or determine loudspeaker
Vibrating diaphragm amplitude is less than or equal to the default amplitude higher than lowest amplitude.
2. the apparatus according to claim 1, which is characterized in that
The control module is also used to determine diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, according to pre-
The corresponding relationship of the vibrating diaphragm amplitude and output power deposited adjusts the output power of loudspeaker.
3. the apparatus according to claim 1, which is characterized in that described device further include:
First cue module, for judging that diaphragm of loudspeaker amplitude is less than or equal to the first amplitude threshold when the control module
Value prompts user's loudspeaker abnormal.
4. the apparatus according to claim 1, which is characterized in that described device further include:
Second cue module, for judging that diaphragm of loudspeaker amplitude is less than or equal to the first amplitude threshold when the control module
Value prompts user to open power adjustment functions；
Receiving module confirms the open instruction of unlatching power adjustment functions for receiving user, and the open instruction is exported
To control module；Correspondingly,
The control module, for after receiving the open instruction, by adjusting the defeated of the loudspeaker power amplifier
Parameter out reduces the power for being input to the voice signal of loudspeaker.
5. a kind of loudspeaker adaptive regulation method, which is characterized in that the described method includes:
Measure diaphragm of loudspeaker amplitude；
When determining diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, the voice signal for being input to loudspeaker is reduced
Power be the first power；
According to power output voice signal adjusted；
The diaphragm of loudspeaker amplitude that determines is less than or equal to the first amplitude threshold, comprising:
It determines diaphragm of loudspeaker amplitude and is less than or equal to the lowest amplitude that loudspeaker works normally, or determine loudspeaker
Vibrating diaphragm amplitude is less than or equal to the default amplitude higher than lowest amplitude.
6. according to the method described in claim 5, it is characterized in that, the method also includes:
It is less than or equal to the first amplitude threshold when determining diaphragm of loudspeaker amplitude, according to the vibrating diaphragm amplitude and output work prestored
The corresponding relationship of rate adjusts the output power of loudspeaker.
7. according to the method described in claim 5, it is characterized in that, the method also includes:
When judging diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, prompt user's loudspeaker is abnormal.
8. according to the method described in claim 5, it is characterized in that, the method also includes:
When judging diaphragm of loudspeaker amplitude less than or equal to the first amplitude threshold, prompt user opens power adjustment functions；
It receives user and confirms the open instruction for opening power adjustment functions；
After receiving the open instruction, by adjusting the output parameter of the loudspeaker power amplifier, reduction is input to
The power of the voice signal of loudspeaker.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108040316A (en) * | 2017-11-24 | 2018-05-15 | 维沃移动通信有限公司 | A kind of amplitude detection method and mobile terminal |
| CN109218953A (en) * | 2018-08-13 | 2019-01-15 | 广州市星睿科技有限公司 | One kind being used for sound equipment sound film quality amount detection systems and method |
| CN110868653B (en) * | 2018-08-28 | 2020-12-25 | 武汉市聚芯微电子有限责任公司 | Loudspeaker protection device and method |
| CN113079441B (en) * | 2020-01-06 | 2022-09-02 | 北京小米移动软件有限公司 | Loudspeaker and terminal equipment |
| CN113556647B (en) * | 2020-04-23 | 2022-11-22 | 华为技术有限公司 | Loudspeaker device and method for reducing shell vibration thereof |
| CN111741406B (en) * | 2020-06-12 | 2022-03-01 | 瑞声科技(新加坡)有限公司 | Audio signal adjusting method and device, computer equipment and storage medium |
| CN116896713B (en) * | 2023-09-04 | 2023-12-05 | 立臻精密智造(昆山)有限公司 | Device and method for determining height of loudspeaker diaphragm |
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