CN107040655A - Mobile terminal and audio adaptive equilibrium method - Google Patents
Mobile terminal and audio adaptive equilibrium method Download PDFInfo
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- CN107040655A CN107040655A CN201710181123.3A CN201710181123A CN107040655A CN 107040655 A CN107040655 A CN 107040655A CN 201710181123 A CN201710181123 A CN 201710181123A CN 107040655 A CN107040655 A CN 107040655A
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- ear canal
- canal length
- frequency
- mobile terminal
- earphone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
Abstract
The invention discloses a kind of mobile terminal and audio adaptive equilibrium method, the audio adaptive equilibrium method comprises the following steps：The ear canal length that earphone is sent is received, wherein, the earphone measures the ear canal length of user by distance measuring sensor；Resonant frequency is calculated according to the ear canal length and preset formula, and the frequency to the resonant frequency and in the preset range in the resonant frequency is handled and matched with obtaining three frequencies；When detecting voice data, the frequency of the voice data is adjusted according to described three frequency proportionings, and the voice data after adjustment is sent to the earphone.The present invention can reduce the resonant frequency in voice data, reduce duct cavity resonance, so as to effectively alleviate audio sharply, reduce hearing impairment.
Description
Technical field
The present invention relates to the technical field of audio effect processing, more particularly to a kind of mobile terminal and audio adaptive equalization side
Method.
Background technology
Mobile terminal at this stage all possesses audio and video playing function, and mobile terminal outer playback frequency or can be broadcast by earphone
Playback frequency.After earphone is connected with mobile terminal, user puts on that earphone i.e. audible sound is happy to receive calls.At present, it is more popular
In-Ear Headphones, small volume is easy to user to carry, and is in close contact with ear, can effectively reduce ambient noise pair
The interference of music, reduces leakage sound, and the texture and amount for increasing low frequency are felt, and increase the performance to music detail.
But In-Ear Headphones belong to non-natural pronunciation, long periods of wear In-Ear Headphones listen music, easily produce auditory system
Fatigue and damage, the particularly higher sound of frequency.Its main cause is that the band segment in audio can cause duct cavity
Resonance, it is generally the case that the frequency of sound wave for triggering resonance is between 2.5-3.3KHz, but because In-Ear Headphones go deep into ear
Road, therefore trigger the frequency of sound wave of resonance to will increase between 4-5KHz.And frequency of sound wave between 4-5KHz when, human body is listened
The injury of feel system is larger, and user also may feel that it is ear-piercing.Therefore, In-Ear Headphones are worn and listen music in mobile terminal
When, it is tighter due to closing, cause duct cavity resonance, be easily caused that audio is sharp and damage hearing.
The content of the invention
It is a primary object of the present invention to propose a kind of mobile terminal and audio adaptive equilibrium method, it is intended to solve user
It is tighter due to closing when wearing In-Ear Headphones and listening music, cause duct cavity resonance, be easily caused that audio is sharp to be listened with damage
The technical problem of power.
To achieve the above object, a kind of mobile terminal that the present invention is provided, the mobile terminal includes：
Receiving module, the ear canal length for receiving earphone transmission, wherein, the earphone is measured by distance measuring sensor and used
The ear canal length at family；
Processing module is calculated, for calculating resonant frequency according to the ear canal length and preset formula, and to the resonance
Frequency in frequency and preset range in the resonant frequency is handled to obtain three frequency proportionings；
Sending module is adjusted, for when detecting voice data, the voice data to be adjusted according to described three frequency proportionings
Frequency, and the voice data after adjustment is sent to the earphone.
Alternatively, the calculating processing module includes：
Computing unit, for calculating resonant acoustic wave wavelength according to the ear canal length and the first preset formula；
The computing unit, is additionally operable to calculate corresponding resonance frequency according to the resonant acoustic wave wavelength and the second preset formula
Rate；
Screening unit, the resonant frequency of default screening conditions is met for being filtered out from the resonant frequency.
Alternatively, the mobile terminal also includes：
Obtain judge module, for obtaining history ear canal length, and judge the history ear canal length whether with the ear
Road length is identical；
First acquisition module, if identical with the ear canal length for the history ear canal length, obtains the history
Corresponding three frequency of ear canal length is matched；
The calculating processing module, if it is different from the ear canal length to be additionally operable to the history ear canal length, according to institute
State ear canal length and preset formula and calculate resonant frequency, and to the resonant frequency and the preset range in the resonant frequency
Interior frequency is handled to obtain three frequency proportionings.
Alternatively, the acquisition judge module includes：
Judging unit, for judging whether the difference of the history ear canal length and the ear canal length is in preset difference value
In the range of；
First identifying unit, if being in for the difference in the range of preset difference value, judges the history ear canal length
It is identical with the ear canal length；
Second identifying unit, if being not in for the difference in the range of preset difference value, judges that the history duct is long
Degree is different from the ear canal length.
Alternatively, the mobile terminal also includes：
Preserving module is recorded, during for being disconnected in the connection for detecting the earphone and mobile terminal, recording and preserving disconnected
Open duration；
Judge module, for when detecting the earphone and the mobile terminal and being again coupled to, when judging the disconnection
It is long whether to be less than or equal to preset duration；
Second acquisition module, if being less than or equal to preset duration for the disconnection duration, obtains three frequency and matches；
The receiving module, if being additionally operable to the disconnection duration is more than preset duration, the duct for receiving earphone transmission is long
Degree.
In addition, to achieve the above object, the present invention also provides a kind of audio adaptive equilibrium method, and the audio is adaptive
Equalization methods comprise the following steps：
The ear canal length that earphone is sent is received, wherein, the earphone measures the ear canal length of user by distance measuring sensor；
Resonant frequency is calculated according to the ear canal length and preset formula, and to the resonant frequency and in the resonance
Frequency in the preset range of frequency is handled to obtain three frequency proportionings；
When detecting voice data, the frequency of the voice data is adjusted according to described three frequency proportionings, and by after adjustment
Voice data send to the earphone.
Alternatively, it is described to be included according to the step of the ear canal length and preset formula calculating resonant frequency：
Resonant acoustic wave wavelength is calculated according to the ear canal length and the first preset formula；
Corresponding resonant frequency is calculated according to the resonant acoustic wave wavelength and the second preset formula；
The resonant frequency for meeting default screening conditions is filtered out from the resonant frequency.
Alternatively, after the step of ear canal length that the reception earphone is sent, the audio adaptive equilibrium method is also
Including：
History ear canal length is obtained, and judges whether the history ear canal length is identical with the ear canal length；
If the history ear canal length is identical with the ear canal length, corresponding three frequency of the history ear canal length is obtained
Proportioning；
If the history ear canal length is different from the ear canal length, perform according to the ear canal length and preset formula
Resonant frequency is calculated, and frequency to the resonant frequency and in the preset range in the resonant frequency is handled to obtain
The step of taking three frequency proportionings.
Alternatively, it is described to judge whether the step identical with the ear canal length includes the history ear canal length：
Judge the history ear canal length with the difference of the ear canal length whether in the range of preset difference value；
If the difference is in the range of preset difference value, the history ear canal length and the ear canal length phase are judged
Together；
If the difference is not in the range of preset difference value, judge the history ear canal length with the ear canal length not
Together.
Alternatively, it is described when detecting voice data, the frequency of the voice data is adjusted according to described three frequency proportionings,
And send the voice data after adjustment to after the step of the earphone, the audio adaptive equilibrium method also includes：
When the connection for detecting the earphone and mobile terminal disconnects, record and preserve disconnection duration；
When detecting the earphone and the mobile terminal is again coupled to, judge whether the disconnection duration is less than or waits
In preset duration；
If the disconnection duration is less than or equal to preset duration, obtains three frequency and match；
If the disconnection duration is more than preset duration, the step of performing the ear canal length for receiving earphone transmission.
Mobile terminal of the present invention receives the ear canal length that earphone is sent, and is calculated altogether according to the ear canal length and preset formula
Vibration frequency, then the frequency to resonant frequency and in the preset range in the resonant frequency is handled is matched somebody with somebody with obtaining three frequencies
Than, and when detecting voice data, adjust the frequency of the voice data according to the three frequencies proportioning, then by the audio number after adjustment
According to sending to the earphone, this programme is by the ear canal length of the built-in distance measuring sensor measurement user in earphone, and it is accurate to can obtain
Ear canal length, and mobile terminal is when receiving accurate ear canal length, can be according to the ear canal length and preset formula meter
Resonant frequency is calculated, then the resonant frequency is handled to obtain three frequency proportionings so that mobile terminal can detect sound
Frequency according to when, adjustment voice data in frequency, reduce voice data in resonant frequency, reduce duct cavity resonance so that
Effectively alleviate audio sharp, reduce hearing impairment.
Brief description of the drawings
Fig. 1 is a kind of optional hardware architecture diagram for the mobile terminal for realizing each embodiment of the invention；
Fig. 2 is the high-level schematic functional block diagram of mobile terminal first embodiment of the present invention；
Fig. 3 is the refinement high-level schematic functional block diagram that processing module is calculated described in Fig. 2；
Fig. 4 is the curve synoptic diagram after being handled in the embodiment of the present invention resonant frequency；
Fig. 5 is the high-level schematic functional block diagram of mobile terminal second embodiment of the present invention；
Fig. 6 is the refinement high-level schematic functional block diagram of judge module described in Fig. 5；
Fig. 7 is the high-level schematic functional block diagram of mobile terminal 3rd embodiment of the present invention；
Fig. 8 is the schematic flow sheet of audio adaptive equilibrium method first embodiment of the present invention；
Fig. 9 is that the refinement flow for calculating resonant frequency step according to the ear canal length and preset formula described in Fig. 8 is shown
It is intended to；
Figure 10 is the schematic flow sheet of audio adaptive equilibrium method second embodiment of the present invention；
Figure 11 be Figure 10 described in judge the history ear canal length whether the refinement with the ear canal length same steps
Schematic flow sheet；
Figure 12 is the schematic flow sheet of audio adaptive equilibrium method 3rd embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Describe to realize the mobile terminal of each embodiment of the invention referring now to accompanying drawing.In follow-up description, use
For represent element such as " module ", " part " or " unit " suffix only for be conducive to the present invention explanation, itself
Not specific meaning.Therefore, " module " can be used mixedly with " part ".
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
Phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (tablet personal computer), PMP
The mobile terminal of (portable media player), guider etc. and such as numeral TV, desktop computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for movement
Outside the element of purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 illustrates for the hardware configuration of the mobile terminal of realization each embodiment of the invention.
Mobile terminal 1 00 can include wireless communication unit 110, sensing unit 140, output unit 150, memory 160,
Interface unit 170, controller 180 and power subsystem 190 etc..Fig. 1 shows the mobile terminal with various assemblies, but should
What is understood is, it is not required that implement all components shown.More or less components can alternatively be implemented.To be detailed below
The element of thin description mobile terminal.
Wireless communication unit 110 generally includes one or more assemblies, and it allows mobile terminal 1 00 and radio communication device
Or the radio communication between network.For example, wireless communication unit can include mobile communication module 112, wireless Internet mould
At least one in block 113 and short range communication module 114.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by the module can include WLAN (WLAN) (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 junction service.Some examples of short-range communication technology include indigo plant
Tooth TM, radio frequency identification (RFID), Infrared Data Association (IrDA), ultra wide band (UWB), purple honeybee TM etc..
Sensing unit 140 detects the current state of mobile terminal 1 00, (for example, mobile terminal 1 00 opens or closes shape
State), the position of mobile terminal 1 00, user is for the presence or absence of contact (that is, touch input) of mobile terminal 1 00, mobile terminal
100 orientation, the acceleration of mobile terminal 1 00 or by fast movement and direction etc., and generate for controlling mobile terminal 1 00
The order of operation or signal.For example, when mobile terminal 1 00 is embodied as sliding-type mobile phone, sensing unit 140 can be sensed
The sliding-type phone is opening or closing.In addition, sensing unit 140 can detect power subsystem 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140, which can include proximity transducer 141, to be combined below
This is described touch-screen.
Interface unit 170 is connected the interface that can pass through as at least one external device (ED) with mobile terminal 1 00.For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, 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 that storage is used to verify that user uses each of mobile terminal 1 00
Plant information and subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) can be included
Etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can take the form of smart card, therefore, know
Other device can be connected via port or other attachment means with mobile terminal 1 00.Interface unit 170 can be used for reception and come from
The input (for example, data message, electric power etc.) of external device (ED) and the input received is transferred in mobile terminal 1 00
One or more elements can be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 may be used as allowing by it by electricity
Power provides to the path of mobile terminal 1 00 from base or may be used as allowing passing through it from the various command signals that base is inputted
It is transferred to the path of mobile terminal.The various command signals or electric power inputted from base may be used as being used to recognize that mobile terminal is
The no signal being accurately fitted within base.Output unit 150 is configured to provide defeated with vision, audio and/or tactile manner
Go out signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.).Output unit 150 can include audio
Output module 152 etc..
Dio Output Modules 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
It is that wireless communication unit 110 is received or in memory 160 when under the isotypes such as speech recognition mode, broadcast reception mode
The voice data transducing audio signal of middle storage and it is output as sound.Moreover, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) for the specific function correlation that terminal 100 is performed.
Dio Output Modules 152 can include sound pick-up, buzzer etc..
Memory 160 can store software program of the processing performed by controller 180 and control operation etc., 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 the vibration of various modes on being exported when touching and being applied to touch-screen and audio signal
Data.
Memory 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memory (for example, SD or DX memories etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only storage (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..Moreover, mobile terminal 1 00 can be with performing memory by network connection
The network storage device cooperation of 160 store function.
The overall operation of the generally control mobile terminal of controller 180.For example, controller 180 is performed and voice call, data
Communication, video calling etc. related control and processing.In addition, controller 180 can include being used to reproduce (or playback) many matchmakers
The multi-media module 181 of volume data, multi-media module 181 can be constructed in controller 180, or can be structured as and control
Device 180 is separated.Controller 180 can be with execution pattern identifying processing, by the handwriting input performed on the touchscreen or picture
Draw input and be identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each member
Appropriate electric power needed for part and component.
Various embodiments described herein can be with use such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implemented.Implement for hardware, 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), processor, controller, microcontroller, microprocessor, it is designed to perform function described herein
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 be with allowing to perform the single of at least one function or operation
Software module is implemented.Software code can by the software application (or program) write with any appropriate programming language Lai
Implement, software code can be stored in memory 160 and be performed by controller 180.
So far, oneself according to its function through describing mobile terminal.Below, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc. is as showing
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
Mobile terminal 1 00 as shown in Figure 1 may be constructed such that using via frame or packet transmission data it is all if any
Line and radio communication device and satellite-based communicator are operated.
Each implementation of structure based on above-mentioned mobile terminal hardware configuration, communicator, proposition apparatus of the present invention and method
Example.
The present invention provides a kind of mobile terminal.
Reference picture 2, Fig. 2 is the high-level schematic functional block diagram of mobile terminal first embodiment of the present invention.
In the present embodiment, the mobile terminal includes：
Receiving module 10, the ear canal length for receiving earphone transmission, wherein, the earphone is measured by distance measuring sensor
The ear canal length of user；
The mobile terminal includes smart mobile phone and tablet personal computer etc., and the earphone includes bluetooth earphone and wired earphone etc., should
Distance measuring sensor and micro-control unit etc. are embedded with earphone, the distance measuring sensor includes laser range sensor and infrared distance measurement
Sensor etc..In the present embodiment, the distance measuring sensor is laser range sensor.In specific implementation, the laser ranging is passed
Power consumption under sensor normal mode of operation is 20mW, and stand-by power consumption is 5 μ A, and package dimension is 2.4mmx4.4mmx1mm, the laser
The distance measurement result of distance measuring sensor is accurate to millimeter, and the color and reflected light of target object do not interfere with distance measurement result.The ear
On machine after electricity, that is, mobile terminal is inserted an earphone into, mobile terminal is that laser range sensor is powered or opened by earphone interface
Power supply in earphone is powered for laser range sensor, and the earphone measures the ear canal length of user by laser range sensor
(human antrum auris length is generally 2.5~3.5 centimetres, belongs to Centimeter Level), after the measurement data of ear canal length is obtained, passes through ear
The embedded micro-control unit of machine is encoded to the measurement data, then sends the measurement data after coding to mobile terminal.
In specific implementation, when earphone is bluetooth earphone, the earphone is sent the measurement data after coding to shifting by bluetooth module
Dynamic terminal, and earphone is when being wired earphone, the earphone is sent the measurement data after coding to mobile terminal by earphone cord.
In another specific implementation, the built-in laser ranging sensing in the left and right end of earphone, and it is left by the laser ranging sensing measurement
The ear canal length of auris dextra piece, i.e., left ear canal length and right ear canal length, and left ear canal length and right ear canal length are sent to shifting
Dynamic terminal.
The receiving module 10 is equivalent to short range communication module 114 or interface unit 170 shown in Fig. 1, the mobile terminal
The ear canal length that earphone is sent is received by receiving module 10, the unit of the ear canal length can for centimetre and millimeter.Specific
In implementation, when the ear canal length includes left ear canal length and right ear canal length, the flat of left ear canal length and right ear canal length is taken
Average as user ear canal length, for example, it is assumed that left ear canal length and right ear canal length that mobile terminal is received are respectively
15mm and 17mm, then the ear canal length of user is 16mm.
Processing module 20 is calculated, for calculating resonant frequency according to the ear canal length and preset formula, and to described common
Frequency in vibration frequency and preset range in the resonant frequency is handled to obtain three frequency proportionings；
The calculating processing module 20 is connect equivalent to the controller 180 shown in Fig. 1, the mobile terminal by receiving module 10
After the ear canal length for receiving earphone transmission, preset formula is obtained by calculating processing module 20, and according to the preset formula and be somebody's turn to do
Ear canal length calculates resonant frequency, then according to default sound effect algorithms to the resonant frequency and the default model in the resonant frequency
Frequency in enclosing is handled, to obtain three frequency proportionings.The three frequencies proportioning is the ratio of low frequency, intermediate frequency and high frequency.The default public affairs
Formula is d=(λ/4)+(k λ/2), and wherein d is that ear canal length, λ are wave length of sound, and k is equal to 0 or is natural number, ear canal length d
The unit for being SI units, i.e. ear canal length and wave length of sound with unit of the sound wave wavelength X in the preset formula is equal
For rice.In specific implementation, the unit for the ear canal length that mobile terminal is received is millimeter, then before resonant frequency is calculated,
Mobile terminal is converted the ear canal length according to unit conversion relation, obtains the ear canal length that unit is rice.
Specifically, reference picture 3, Fig. 3 is that the refinement high-level schematic functional block diagram of processing module 20, the meter are calculated described in Fig. 2
Calculating processing module 20 includes：
Computing unit 21, for calculating resonant acoustic wave wavelength according to the ear canal length and the first preset formula；
The computing unit 21, is additionally operable to calculate corresponding resonance according to the resonant acoustic wave wavelength and the second preset formula
Frequency；
Screening unit 22, the resonant frequency of default screening conditions is met for being filtered out from the resonant frequency.
The default screening conditions are whether resonant frequency is between 0-20kHz, first preset formula be d=(λ/4)+
(k λ/2), second preset formula is λ=c/f, and the λ is wave length of sound, and unit is rice, and the c is acoustic velocity, is 340m/s, f
For frequency of sound wave, unit is Hz.The mobile terminal is calculated by computing unit 21 according to the ear canal length and the first preset formula
Resonant acoustic wave wavelength, and corresponding resonant frequency is calculated according to the resonant acoustic wave wavelength and the second preset formula, then pass through sieve
Menu member 22 filters out the resonant frequency for meeting default screening conditions from the resonant frequency, that is, filter out in 0-20kHz it
Between resonant frequency.For example, it is assumed that the ear canal length that mobile terminal is received is 20mm, according to the first preset formula d=(λ/4)
+ (k λ/2), the second preset formula λ=c/f and default screening conditions, can obtain meeting the resonant acoustic wave frequency of default screening conditions
Respectively 4.25kHz and 12.75kHz, it is assumed that the ear canal length that mobile terminal is received is 17mm, then meets default screening conditions
Resonant acoustic wave frequency be respectively 5kHz and 15kHz.
After acquisition meets the resonant frequency of screening conditions, then the frequency in the preset range of the resonant frequency is obtained, and
Handled, that is, carried out according to frequency of the default sound effect algorithms to the resonant frequency and in the preset range in the resonant frequency
Well-balanced adjustment, with obtain three frequency proportioning, then by the ear canal length and this three frequency proportioning preserved, the ear canal length with this three
Frequency proportioning has one-to-one relationship.Fig. 4 is the curve synoptic diagram after being handled in the embodiment of the present invention resonant frequency, such as
Shown in Fig. 4, resonant frequency substantially 5kHz, when frequency is in 200Hz to 2kHz, well-balanced adjustment curve substantially straight line,
Frequency i.e. not to 200Hz to 2kHz carries out attenuation processing, and when frequency is in the preset range of resonant frequency, equilibrium is adjusted
The frequency that pitch curve is presented in trench, i.e., the preset range to resonant frequency and in resonant frequency carries out attenuation processing, reduces
It is sharp that resonant frequency is brought.
Sending module 30 is adjusted, for when detecting voice data, the audio number to be adjusted according to described three frequency proportionings
According to frequency, and the voice data after adjustment is sent to the earphone.
The adjustment sending module 30 exists equivalent to the controller 180 and interface unit 170 shown in Fig. 1, the mobile terminal
Obtain after three frequency proportionings, detection mobile terminal whether there is the voice data played, and detect voice data, then root
It is adjusted, then sends the voice data after adjustment to earphone, the ear with the frequency for comparing the voice data according to three frequency
Machine receives voice data, and plays the voice data., will by earphone cord when the earphone is wired earphone in specific implementation
Voice data is transmitted to earphone, when the earphone is bluetooth earphone, is then transmitted voice data to earphone by bluetooth.
In the present embodiment, mobile terminal of the present invention receives the ear canal length that earphone is sent, and according to the ear canal length and
Preset formula calculates resonant frequency, and then the frequency to resonant frequency and in the preset range in the resonant frequency is handled
Matched with obtaining three frequencies, and when detecting voice data, the frequency of the voice data is adjusted according to the three frequencies proportioning, then will adjust
Voice data after whole is sent to the earphone, and this programme is long by the duct that built-in distance measuring sensor measures user in earphone
Degree, can obtain accurate ear canal length, and mobile terminal is when receiving accurate ear canal length, can be according to the ear canal length
Resonant frequency is calculated with preset formula, then the resonant frequency is handled to obtain three frequency proportionings so that mobile terminal energy
It is enough to adjust the frequency in voice data when detecting voice data, the resonant frequency in voice data is reduced, duct chamber is reduced
Resonance body, so as to effectively alleviate audio sharply, reduces hearing impairment.
Further, reference picture 5, it is described to move in mobile terminal second embodiment of the present invention based on above-mentioned first embodiment
Dynamic terminal also includes：
Obtain judge module 40, for obtaining history ear canal length, and judge the history ear canal length whether with it is described
Ear canal length is identical；
The acquisition judge module 40 is connect equivalent to the controller 180 shown in Fig. 1, the mobile terminal by receiving module 10
Receive after the ear canal length that earphone is sent, by obtaining the history ear canal length in the acquisition mobile terminal of judge module 40, and judge
Whether the history ear canal length is identical with the ear canal length received, and the history ear canal length is stored in mobile terminal.
Specifically, reference picture 6, Fig. 6 is the refinement high-level schematic functional block diagram for obtaining judge module 40 described in Fig. 5,
The acquisition judge module 40 includes：
Judging unit 41, for judging the history ear canal length with the difference of the ear canal length whether in default poor
In the range of value；
First identifying unit 42, if being in for the difference in the range of preset difference value, judges that the history duct is long
Degree is identical with the ear canal length；
Second identifying unit 43, if being not in for the difference in the range of preset difference value, judges the history duct
Length is different from the ear canal length.
The mobile terminal judges history ear canal length by judging unit 41 and whether the difference of ear canal length that receives
In the range of preset difference value, if the difference is in the range of preset difference value, judge that this is gone through by the first identifying unit 42
History ear canal length is identical with the ear canal length, if the difference is not in the range of preset difference value, passes through the first identifying unit
43 judge that the history ear canal length is different from the ear canal length.
First acquisition module 50, if identical with the ear canal length for the history ear canal length, goes through described in acquisition
Corresponding three frequency of history ear canal length is matched；
The calculating processing module 20, if it is different from the ear canal length to be additionally operable to the history ear canal length, basis
The ear canal length and preset formula calculate resonant frequency, and to the resonant frequency and the default model in the resonant frequency
Frequency in enclosing is handled to obtain three frequency proportionings.
If the history ear canal length is identical with the ear canal length, mobile terminal is obtained by the first acquisition module 50 should
Corresponding three frequency of history ear canal length is matched, and when detecting voice data, is matched frequently according to history three and adjusted the audio number
According to frequency, then the voice data after adjustment is sent to earphone, if the history ear canal length is different from the ear canal length,
Then by calculating processing module 20 according to ear canal length and preset formula the calculating resonant frequency received, and to the resonant frequency
Handled to obtain three frequency proportionings with the frequency in the preset range of the resonant frequency.
In the present embodiment, the present invention obtains history ear canal length, and sentence after the ear canal length of earphone transmission is received
Whether the disconnected history ear canal length is identical with the ear canal length received, if identical, obtains the history ear canal length corresponding
Three frequencies are matched, otherwise, calculate resonant frequency according to the ear canal length and preset formula received, and to the resonant frequency and be in
Frequency in the resonant frequency preset range is handled, and to obtain three frequency proportionings, this programme passes through the duct received is long
Degree is compared with history ear canal length, when identical, and directly obtains three frequency proportionings, can be quick right according to the three frequencies proportioning
Voice data is handled, and can be reduced the calculating process of three frequency proportionings, be improved processing speed.
Further, reference picture 7, based on above-mentioned first or second embodiments, in mobile terminal 3rd embodiment of the present invention,
The mobile terminal also includes：
Preserving module 60 is recorded, during for being disconnected in the connection for detecting the earphone and mobile terminal, recording and preserving
Disconnect duration；
The record preserving module 60 is detecting the earphone and shifting equivalent to the memory 160 shown in Fig. 1, mobile terminal
When the connection of dynamic terminal disconnects, i.e., when user disconnects the bluetooth connection of earphone extraction or bluetooth earphone, record and preserve disconnection
Duration, while recording turn-off time, and is matched frequently according to the turn-off time mark three, is then preserved three frequencies after mark and is matched.
Judge module 70, for when detecting the earphone and the mobile terminal is again coupled to, judging described disconnect
Whether duration is less than or equal to preset duration；
Second acquisition module 80, if being less than or equal to preset duration for the disconnection duration, obtains three frequency and matches somebody with somebody
Than；
The receiving module 10, if being additionally operable to the disconnection duration is more than preset duration, receives the duct that earphone is sent
Length.
The judge module 70 is detecting earphone and movement eventually equivalent to the controller 180 shown in Fig. 1, the mobile terminal
When end is again coupled to, judge whether the disconnection duration is less than or equal to preset duration by judge module 70, if during the disconnection
It is long to be less than or equal to preset duration, then preserve three frequencies are obtained according to turn-off time by the second acquisition module 80 and matched, and root
Handled, then sent the voice data after adjustment to earphone, if during the disconnection with voice data is compared according to three frequency
It is long to be more than preset duration, then receive the ear canal length that earphone is sent.
In the present embodiment, the present invention records when the connection of earphone and mobile terminal disconnects and preserves disconnection duration, and
When earphone and mobile terminal are again coupled to, judge whether the disconnection duration is less than or equal to preset duration, if during the disconnection
Long to be less than or equal to preset duration, then three frequencies for obtaining preservation mark are matched, and this programme passes through the company in earphone and mobile terminal
When connecing disconnection, record disconnects duration, and is again coupled in earphone with mobile terminal, and disconnects duration less than or equal to preset duration
When, obtain the three frequency proportionings for preserving mark so that mobile terminal can be handled quickly voice data, effective to reduce
Duct cavity resonance, so as to effectively alleviate audio sharply, reduces hearing impairment.
The present invention further provides a kind of audio adaptive equilibrium method；
Reference picture 8, Fig. 8 is the schematic flow sheet of audio adaptive equilibrium method first embodiment of the present invention.
In the present embodiment, the audio adaptive equilibrium method includes：
Step S10, receives the ear canal length that earphone is sent, wherein, the earphone measures user's by distance measuring sensor
Ear canal length；
Audio adaptive equilibrium method is applied to mobile terminal, and the mobile terminal includes smart mobile phone and tablet personal computer etc.,
The earphone includes bluetooth earphone and wired earphone etc., distance measuring sensor and micro-control unit etc. is embedded with the earphone, the ranging
Sensor includes laser range sensor and infrared distance sensor etc..In the present embodiment, the distance measuring sensor is Laser Measuring
Away from sensor.In specific implementation, the power consumption under the laser range sensor normal mode of operation is 20mW, and stand-by power consumption is 5 μ
A, package dimension is 2.4mmx4.4mmx1mm, and the distance measurement result of the laser range sensor is accurate to millimeter, and target object
Color and reflected light do not interfere with distance measurement result.On the earphone after electricity, that is, mobile terminal is inserted an earphone into, mobile terminal passes through ear
Machine interface is that the power supply that laser range sensor powered or opened in earphone is that laser range sensor is powered, and the earphone is by swashing
Ligh-ranging sensor measures the ear canal length (human antrum auris length is generally 2.5~3.5 centimetres, belongs to Centimeter Level) of user,
After the measurement data for obtaining ear canal length, the micro-control unit embedded by earphone is encoded to the measurement data, then will
Measurement data after coding is sent to mobile terminal.In specific implementation, when earphone is bluetooth earphone, the earphone passes through bluetooth
Module sends the measurement data after coding to mobile terminal, and earphone be wired earphone when, the earphone by earphone cord will compile
Measurement data after code is sent to mobile terminal.In another specific implementation, the built-in laser ranging in the left and right end of earphone
Sensing, and by the ear canal length of the laser ranging sensing measurement left-right ear, i.e., left ear canal length and right ear canal length, and will
Left ear canal length and right ear canal length are sent to mobile terminal.
The mobile terminal receives the ear canal length that earphone is sent, the unit of the ear canal length can for centimetre and millimeter.
In specific implementation, when the ear canal length includes left ear canal length and right ear canal length, left ear canal length and right ear canal length are taken
Average value as user ear canal length, for example, it is assumed that left ear canal length that mobile terminal is received and right ear canal length point
Not Wei 15mm and 17mm, then the ear canal length of user be 16mm.
Step S20, calculates resonant frequency, and to the resonant frequency and be according to the ear canal length and preset formula
Frequency in the preset range of the resonant frequency is handled to obtain three frequency proportionings；
The mobile terminal is received after the ear canal length of earphone transmission, obtains preset formula, and according to the preset formula and
The ear canal length calculates resonant frequency, is then preset according to default sound effect algorithms to the resonant frequency and in the resonant frequency
In the range of frequency handled, with obtain three frequency proportioning.The three frequencies proportioning is the ratio of low frequency, intermediate frequency and high frequency.This is preset
Formula is d=(λ/4)+(k λ/2), and wherein d is that ear canal length, λ are wave length of sound, and k is equal to 0 or is natural number, the ear canal length
The unit of d and sound wave wavelength X in the preset formula is that the unit of SI units, i.e. ear canal length and wave length of sound is equal
For rice.In specific implementation, the unit for the ear canal length that mobile terminal is received is millimeter, then before resonant frequency is calculated,
Mobile terminal is converted the ear canal length according to unit conversion relation, obtains the ear canal length that unit is rice.
Specifically, reference picture 9, Fig. 9 is the refinement schematic flow sheet of step S20 described in Fig. 8, and the step S20 includes：
Step S21, resonant acoustic wave wavelength is calculated according to the ear canal length and the first preset formula；
Step S22, corresponding resonant frequency is calculated according to the resonant acoustic wave wavelength and the second preset formula；
Step S23, filters out the resonant frequency for meeting default screening conditions from the resonant frequency.
The default screening conditions are whether resonant frequency is between 0-20kHz, first preset formula be d=(λ/4)+
(k λ/2), second preset formula is λ=c/f, and the λ is wave length of sound, and unit is rice, and the c is acoustic velocity, is 340m/s, f
For frequency of sound wave, unit is Hz.The mobile terminal is calculated by computing unit 21 according to the ear canal length and the first preset formula
Resonant acoustic wave wavelength, and corresponding resonant frequency is calculated according to the resonant acoustic wave wavelength and the second preset formula, then pass through sieve
Menu member 22 filters out the resonant frequency for meeting default screening conditions from the resonant frequency, that is, filter out in 0-20kHz it
Between resonant frequency.For example, it is assumed that the ear canal length that mobile terminal is received is 20mm, according to the first preset formula d=(λ/4)
+ (k λ/2), the second preset formula λ=c/f and default screening conditions, can obtain meeting the resonant acoustic wave frequency of default screening conditions
Respectively 4.25kHz and 12.75kHz, it is assumed that the ear canal length that mobile terminal is received is 17mm, then meets default screening conditions
Resonant acoustic wave frequency be respectively 5kHz and 15kHz.
After acquisition meets the resonant frequency of screening conditions, then the frequency in the preset range of the resonant frequency is obtained, and
Handled, that is, carried out according to frequency of the default sound effect algorithms to the resonant frequency and in the preset range in the resonant frequency
Well-balanced adjustment, with obtain three frequency proportioning, then by the ear canal length and this three frequency proportioning preserved, the ear canal length with this three
Frequency proportioning has one-to-one relationship.Fig. 4 is the curve synoptic diagram after being handled in the embodiment of the present invention resonant frequency, such as
Shown in Fig. 4, resonant frequency substantially 5kHz, when frequency is in 200Hz to 2kHz, well-balanced adjustment curve substantially straight line,
Frequency i.e. not to 200Hz to 2kHz carries out attenuation processing, and when frequency is in the preset range of resonant frequency, equilibrium is adjusted
The frequency that pitch curve is presented in trench, i.e., the preset range to resonant frequency and in resonant frequency carries out attenuation processing, reduces
It is sharp that resonant frequency is brought.
Step S30, when detecting voice data, the frequency of the voice data is adjusted according to described three frequency proportionings, and
Voice data after adjustment is sent to the earphone.
The mobile terminal is after three frequency proportionings are obtained, and detection mobile terminal whether there is the voice data played, and
Voice data is being detected, then is being adjusted according to three frequency with the frequency for comparing the voice data, then by the sound after adjustment
Frequency is according to sending to earphone, and the earphone receives voice data, and plays the voice data.In specific implementation, the earphone is to have
During line earphone, voice data is transmitted to earphone by earphone cord, when the earphone is bluetooth earphone, then by bluetooth by audio
Data transfer is to earphone.
In the present embodiment, mobile terminal of the present invention receives the ear canal length that earphone is sent, and according to the ear canal length and
Preset formula calculates resonant frequency, and then the frequency to resonant frequency and in the preset range in the resonant frequency is handled
Matched with obtaining three frequencies, and when detecting voice data, the frequency of the voice data is adjusted according to the three frequencies proportioning, then will adjust
Voice data after whole is sent to the earphone, and this programme is long by the duct that built-in distance measuring sensor measures user in earphone
Degree, can obtain accurate ear canal length, and mobile terminal is when receiving accurate ear canal length, can be according to the ear canal length
Resonant frequency is calculated with preset formula, then the resonant frequency is handled to obtain three frequency proportionings so that mobile terminal energy
It is enough to adjust the frequency in voice data when detecting voice data, the resonant frequency in voice data is reduced, duct chamber is reduced
Resonance body, so as to effectively alleviate audio sharply, reduces hearing impairment.
Further, reference picture 10, based on above-mentioned first embodiment, audio adaptive equilibrium method second of the present invention is implemented
In example, after the step S10, the audio adaptive equilibrium method also includes：
Step S40, obtain history ear canal length, and judge the history ear canal length whether with the ear canal length phase
Together；
The mobile terminal is received after the ear canal length that earphone is sent, and obtains the history ear canal length in mobile terminal, and sentence
Breaking, whether the history ear canal length is identical with the ear canal length received, and the history ear canal length is stored in mobile terminal
's.
Specifically, reference picture 11, Figure 11 is the refinement schematic flow sheet of step S40 described in Figure 10, the step S40 bags
Include：
Step S41, judges whether the difference of the history ear canal length and the ear canal length is in preset difference value scope
It is interior；
Step S42, if the difference is in the range of preset difference value, judges the history ear canal length and the duct
Length is identical；
Step S43, if the difference is not in the range of preset difference value, judges the history ear canal length and the ear
Road length is different.
Whether the difference for the ear canal length that the mobile terminal judges history ear canal length and received is in preset difference value model
In enclosing, if the difference is in the range of preset difference value, judge that the history ear canal length is identical with the ear canal length, if should
Difference is not in the range of preset difference value, then judges that the history ear canal length is different from the ear canal length.
Step S50, if the history ear canal length is identical with the ear canal length, obtains the history ear canal length pair
Three frequencies answered are matched；
If the history ear canal length is different from the ear canal length, step S20 is performed, i.e., according to the ear canal length
Resonant frequency is calculated with preset formula, and frequency to the resonant frequency and in the preset range in the resonant frequency is entered
Row processing is matched with obtaining three frequencies.
If the history ear canal length is identical with the ear canal length, it is corresponding that mobile terminal then obtains the history ear canal length
Three frequencies are matched, and when detecting voice data, the frequency of the voice data are adjusted according to three frequency proportionings, then by after adjustment
Voice data is sent to earphone, if the history ear canal length is different from the ear canal length, according to the ear canal length received
Calculated with preset formula at resonant frequency, and frequency to the resonant frequency and in the preset range in the resonant frequency
Reason is matched with obtaining three frequencies.
In the present embodiment, the present invention obtains history ear canal length, and sentence after the ear canal length of earphone transmission is received
Whether the disconnected history ear canal length is identical with the ear canal length received, if identical, obtains the history ear canal length corresponding
Three frequencies are matched, otherwise, calculate resonant frequency according to the ear canal length and preset formula received, and to the resonant frequency and be in
Frequency in the resonant frequency preset range is handled, and to obtain three frequency proportionings, this programme passes through the duct received is long
Degree is compared with history ear canal length, when identical, and directly obtains three frequency proportionings, can be quick right according to the three frequencies proportioning
Voice data is handled, and can be reduced the calculating process of three frequency proportionings, be improved processing speed.
Further, reference picture 12, based on above-mentioned first or second embodiments, audio adaptive equilibrium method of the present invention
In three embodiments, after the step S30, the audio adaptive equilibrium method also includes：
Step S60, when the connection for detecting the earphone and mobile terminal disconnects, records and preserves disconnection duration；
Mobile terminal is when the connection for detecting the earphone and mobile terminal disconnects, i.e., user extracts earphone or bluetooth ear
When the bluetooth connection of machine disconnects, record and preserve disconnection duration, while turn-off time is recorded, and according to the turn-off time mark three
Frequency is matched, and is then preserved three frequencies after mark and is matched.
Whether step S70, when detecting the earphone and the mobile terminal is again coupled to, judge the disconnection duration
Less than or equal to preset duration；
Step S80, if the disconnection duration is less than or equal to preset duration, obtains three frequency and matches；
If the disconnection duration is more than preset duration, step S10 is performed, that is, receives the ear canal length that earphone is sent.
The mobile terminal judges whether the disconnection duration is less than or waits when detecting earphone and mobile terminal is again coupled to
In preset duration, if the disconnection duration is less than or equal to preset duration, by the second acquisition module 80 according to turn-off time
Obtain three frequencies preserved to match, and handled according to three frequency with voice data is compared, then by the voice data after adjustment
Send to earphone, if the disconnection duration is more than preset duration, receive the ear canal length that earphone is sent.
In the present embodiment, the present invention records when the connection of earphone and mobile terminal disconnects and preserves disconnection duration, and
When earphone and mobile terminal are again coupled to, judge whether the disconnection duration is less than or equal to preset duration, if during the disconnection
Long to be less than or equal to preset duration, then three frequencies for obtaining preservation mark are matched, and this programme passes through the company in earphone and mobile terminal
When connecing disconnection, record disconnects duration, and is again coupled in earphone with mobile terminal, and disconnects duration less than or equal to preset duration
When, obtain the three frequency proportionings for preserving mark so that mobile terminal can be handled quickly voice data, effective to reduce
Duct cavity resonance, so as to effectively alleviate audio sharply, reduces hearing impairment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Understood based on such, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are to cause a station terminal equipment (can be mobile phone, computer, clothes
It is engaged in device, air conditioner, or network equipment etc.) perform method described in each embodiment of the invention.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of mobile terminal, it is characterised in that the mobile terminal includes：
Receiving module, the ear canal length for receiving earphone transmission, wherein, the earphone measures user's by distance measuring sensor
Ear canal length；
Processing module is calculated, for calculating resonant frequency according to the ear canal length and preset formula, and to the resonant frequency
Handled to obtain three frequency proportionings with the frequency in the preset range in the resonant frequency；
Sending module is adjusted, for when detecting voice data, the frequency of the voice data to be adjusted according to described three frequency proportionings
Rate, and the voice data after adjustment is sent to the earphone.
2. mobile terminal as claimed in claim 1, it is characterised in that the calculating processing module includes：
Computing unit, for calculating resonant acoustic wave wavelength according to the ear canal length and the first preset formula；
The computing unit, is additionally operable to calculate corresponding resonant frequency according to the resonant acoustic wave wavelength and the second preset formula；
Screening unit, the resonant frequency of default screening conditions is met for being filtered out from the resonant frequency.
3. mobile terminal as claimed in claim 1, it is characterised in that the mobile terminal also includes：
Judge module is obtained, for obtaining history ear canal length, and judges whether the history ear canal length is long with the duct
Degree is identical；
First acquisition module, if identical with the ear canal length for the history ear canal length, obtains the history duct
Corresponding three frequency of length is matched；
The calculating processing module, if it is different from the ear canal length to be additionally operable to the history ear canal length, according to the ear
Road length and preset formula calculate resonant frequency, and to the resonant frequency and in the preset range in the resonant frequency
Frequency is handled to obtain three frequency proportionings.
4. mobile terminal as claimed in claim 3, it is characterised in that the acquisition judge module includes：
Judging unit, for judging whether the difference of the history ear canal length and the ear canal length is in preset difference value scope
It is interior；
First identifying unit, if being in for the difference in the range of preset difference value, judges the history ear canal length and institute
State ear canal length identical；
Second identifying unit, if being not in for the difference in the range of preset difference value, judge the history ear canal length with
The ear canal length is different.
5. the mobile terminal as any one of claim 1-4, it is characterised in that the mobile terminal also includes：
Preserving module is recorded, during for being disconnected in the connection for detecting the earphone and mobile terminal, when recording and preserving disconnection
It is long；
Judge module, for when detecting the earphone and the mobile terminal and being again coupled to, judging that the duration that disconnects is
It is no to be less than or equal to preset duration；
Second acquisition module, if being less than or equal to preset duration for the disconnection duration, obtains three frequency and matches；
The receiving module, if being additionally operable to the disconnection duration is more than preset duration, receives the ear canal length that earphone is sent.
6. a kind of audio adaptive equilibrium method, it is characterised in that the audio adaptive equilibrium method comprises the following steps：
The ear canal length that earphone is sent is received, wherein, the earphone measures the ear canal length of user by distance measuring sensor；
Resonant frequency is calculated according to the ear canal length and preset formula, and to the resonant frequency and in the resonant frequency
Preset range in frequency handled with obtain three frequency proportioning；
When detecting voice data, the frequency of the voice datas is adjusted according to described three frequency proportionings, and by the sound after adjustment
Frequency is according to transmission to the earphone.
7. audio adaptive equilibrium method as claimed in claim 6, it is characterised in that described according to the ear canal length and pre-
If the step of formula calculates resonant frequency includes：
Resonant acoustic wave wavelength is calculated according to the ear canal length and the first preset formula；
Corresponding resonant frequency is calculated according to the resonant acoustic wave wavelength and the second preset formula；
The resonant frequency for meeting default screening conditions is filtered out from the resonant frequency.
8. audio adaptive equilibrium method as claimed in claim 6, it is characterised in that the duct that the reception earphone is sent is long
After the step of spending, the audio adaptive equilibrium method also includes：
History ear canal length is obtained, and judges whether the history ear canal length is identical with the ear canal length；
If the history ear canal length is identical with the ear canal length, obtains corresponding three frequency of the history ear canal length and match somebody with somebody
Than；
If the history ear canal length is different from the ear canal length, perform according to the ear canal length and preset formula calculating
Resonant frequency, and frequency to the resonant frequency and in the preset range in the resonant frequency handled to obtain three
The step of frequency is matched.
9. audio adaptive equilibrium method as claimed in claim 8, it is characterised in that the judgement history ear canal length
Whether the step identical with the ear canal length includes：
Judge the history ear canal length with the difference of the ear canal length whether in the range of preset difference value；
If the difference is in the range of preset difference value, judge that the history ear canal length is identical with the ear canal length；
If the difference is not in the range of preset difference value, judge that the history ear canal length is different from the ear canal length.
10. the audio adaptive equilibrium method as any one of claim 6-9, it is characterised in that described in the basis
Ear canal length and preset formula calculate resonant frequency, and to the resonant frequency and in the preset range in the resonant frequency
Frequency handled with obtain three frequency proportioning the step of after, the audio adaptive equilibrium method also includes：
When the connection for detecting the earphone and mobile terminal disconnects, record and preserve disconnection duration；
When detecting the earphone and the mobile terminal is again coupled to, judge whether the disconnection duration is less than or equal to pre-
If duration；
If the disconnection duration is less than or equal to preset duration, obtains three frequency and match；
If the disconnection duration is more than preset duration, the step of performing the ear canal length for receiving earphone transmission.
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| CN201710181123.3A CN107040655A (en) | 2017-03-23 | 2017-03-23 | Mobile terminal and audio adaptive equilibrium method |
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| WO2021258414A1 (en) * | 2020-06-24 | 2021-12-30 | 瑞声声学科技(深圳)有限公司 | Method and apparatus for suppressing vibration of housing of electronic device, and device and storage medium |
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