CN107743279A - A kind of earphone noise-reduction method, earphone and mobile terminal - Google Patents
A kind of earphone noise-reduction method, earphone and mobile terminal Download PDFInfo
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- CN107743279A CN107743279A CN201710927240.XA CN201710927240A CN107743279A CN 107743279 A CN107743279 A CN 107743279A CN 201710927240 A CN201710927240 A CN 201710927240A CN 107743279 A CN107743279 A CN 107743279A
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- signal
- earphone
- ambient noise
- phase
- noise signal
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
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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
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Telephone Function (AREA)
Abstract
The embodiments of the invention provide a kind of earphone noise-reduction method, earphone and mobile terminal.Methods described includes：Gather ambient noise signal；Anti-phase noise cancellation signal is generated using the ambient noise signal；The anti-phase noise cancellation signal is sent to earphone, the earphone eliminates ambient noise signal using the anti-phase noise cancellation signal in playing audio signal.Improve the broadcasting tonequality of earphone, due in embodiments of the present invention, being to substitute earphone by using the powerful calculation function of electronic equipment to carry out noise reduction process, therefore the device of noise reduction process need not be loaded in earphone, simplify Headphone structure, reduce earphone gross weight and volume.
Description
Technical field
The present invention relates to field of data transmission, more particularly to a kind of earphone noise-reduction method, a kind of earphone and a kind of movement are eventually
End.
Background technology
With the development of mobile communication technology, mobile terminal has become a part indispensable in people's life, when
Before, wireless communication module, such as bluetooth module, infrared module etc. are all loaded with most of mobile terminal devices, this gives people
Life bring more convenient places.Correspondingly, the wireless communication earphone of bluetooth module or infrared module is carried undoubtedly
It is by one of peripheral product of people's favor.The appearance of wireless communication earphone, people are allowed to break away from the constraint of wired earphone；But
Lossy compression method has been carried out to audio when being wirelessly transferred voice data, has damaged tonequality, therefore the tonequality of wireless communication earphone is endured to the fullest extent
Denounce.If wireless communication earphone uses in more noisy environment, acoustical quality is worse.
Therefore, it is necessary to set noise reduction module, entered with the voice signal that the pickup module to wireless communication earphone is collected
Row noise reduction process.The noise reduction module can be loaded into wireless communication earphone or external, but can all cause the complicated of earphone
Change, so that increase earphone overall weight and volume, Consumer's Experience are poor.
The content of the invention
The embodiment of the present invention provides a kind of earphone noise-reduction method and mobile terminal, to solve how to reduce noise in earphone
Problem.
First aspect, there is provided a kind of earphone noise-reduction method, methods described include：
Gather ambient noise signal；
Anti-phase noise cancellation signal is generated using the ambient noise signal；
The anti-phase noise cancellation signal is sent to earphone, the earphone is playing audio letter using the anti-phase noise cancellation signal
Number when eliminate ambient noise signal.
Preferably, methods described is applied to electronic equipment, and the electronic equipment is provided with pick up facility, or, the ear
Machine is provided with pick up facility, the step of the collection ambient noise signal, including：
When the electronic equipment is provided with pick up facility, the pick up facility of the electronic equipment is controlled to gather ambient noise
Signal；
When the earphone is provided with pick up facility, the pick up facility of the earphone is controlled to gather ambient noise signal, and
The earphone is controlled to send the ambient noise signal to the electronic equipment.
Preferably, described the step of anti-phase noise cancellation signal is generated using the ambient noise signal, including：
Obtain the phase, frequency and amplitude of the ambient noise signal；
Using the phase, frequency and amplitude of the ambient noise signal, generation and the ambient noise signal opposite in phase,
Frequency is identical and the anti-phase noise cancellation signal of amplitude identical.
Preferably, before described the step of generating anti-phase noise cancellation signal using the ambient noise signal, in addition to：
Determine the signal intensity of the ambient noise signal；
When the signal intensity of the ambient noise signal is more than default intensity threshold, perform described using the environment
Noise signal generates the step of anti-phase noise cancellation signal.
Preferably, the electronic equipment includes mobile terminal.
Second aspect, there is provided a kind of mobile terminal, the mobile terminal include：
Noise signal acquisition module, for gathering ambient noise signal；
Anti-phase noise cancellation signal generation module, for generating anti-phase noise cancellation signal using the ambient noise signal；
Anti-phase noise cancellation signal sending module, for the anti-phase noise cancellation signal to be sent to earphone, the earphone uses institute
State anti-phase noise cancellation signal and eliminate ambient noise signal in playing audio signal.
Preferably, it is characterised in that methods described is applied to electronic equipment, and the electronic equipment is provided with pick up facility,
Or the earphone is provided with pick up facility, the noise signal acquisition module includes：
First noise signal gathers submodule, for when the electronic equipment is provided with pick up facility, controlling the electricity
The pick up facility collection ambient noise signal of sub- equipment；
Second noise signal gathers submodule, for when the earphone is provided with pick up facility, controlling the earphone
Pick up facility gathers ambient noise signal, and controls the earphone to send the ambient noise signal to the electronic equipment.
Preferably, the anti-phase noise cancellation signal generation module includes：
Ambient noise feature acquisition submodule, for obtaining the phase, frequency and amplitude of the ambient noise signal；
Anti-phase noise cancellation signal generates submodule, for phase, frequency and the amplitude using the ambient noise signal, generation
With the ambient noise signal opposite in phase, frequency is identical and the anti-phase noise cancellation signal of amplitude identical.
Preferably, in addition to：
Signal intensity determining module, for determining the signal intensity of the ambient noise signal；
Anti-phase de-noising execution module, it is more than default intensity threshold for the signal intensity in the ambient noise signal
When, perform described the step of anti-phase noise cancellation signal is generated using the ambient noise signal.
The third aspect, there is provided a kind of earphone, including：
Anti-phase noise cancellation signal receiving module, for receiving phase to be opposite, frequency is identical and the anti-phase de-noising of amplitude identical is believed
Number；
Ambient noise signal cancellation module, for using the opposite in phase, frequency are identical and amplitude identical is anti-phase to disappear
Noise cancellation signal superposition eliminates the ambient noise signal in playing audio signal.
So, can be after completing to gather ambient noise signal, by electricity in actual applications with the embodiment of the present invention
Sub- equipment generates anti-phase noise cancellation signal by the ambient noise signal collected, finally sends anti-phase noise cancellation signal to earphone,
Enable earphone to utilize the ambient noise around the elimination of anti-phase noise cancellation signal when playing audio, improve the broadcasting sound of earphone
Matter, due in embodiments of the present invention, being to substitute earphone by using the powerful calculation function of electronic equipment to carry out noise reduction process,
Therefore the device of noise reduction process need not be loaded in earphone, simplifies Headphone structure, reduces earphone gross weight and volume.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the flow chart of the earphone noise-reduction method of first embodiment of the invention；
Fig. 2 is the flow chart of the earphone noise-reduction method of second embodiment of the invention；
Fig. 3 is the structured flowchart of the mobile terminal of third embodiment of the invention；
Fig. 4 is the structured flowchart of the earphone of fourth embodiment of the invention；
Fig. 5 is the block diagram of the mobile terminal of another embodiment of the present invention；
Fig. 6 is the structural representation of the mobile terminal of another embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
First embodiment
Reference picture 1, the flow chart of the method for the earphone noise-reduction method of one embodiment of the invention is shown, can specifically be wrapped
Include following steps：
Step 101, ambient noise signal is gathered；
The embodiment of the present invention can apply in electronic equipment, wherein, the electronic equipment refers to have access to earphone
Equipment.After earphone is accessed, start the ambient noise signal around collection.
In actual applications, ambient noise signal can be noise signal caused by the environment residing for user.
For example, when user is in sound caused by the complex place of sound field environment such as airport, harbour, snow mountain, market
Sound, it can be viewed as noise signal.
Step 102, anti-phase noise cancellation signal is generated using the ambient noise signal；
In the specific implementation, the embodiment of the present invention ambient noise signal based on collection can generate instead in the electronic device
Phase noise cancellation signal.
Step 103, the anti-phase noise cancellation signal is sent to earphone, the earphone is being broadcast using the anti-phase noise cancellation signal
Ambient noise signal is eliminated when putting audio signal.
After anti-phase noise cancellation signal is generated in ambient noise signal of the electronic equipment based on collection, by the anti-phase noise cancellation signal
Send to earphone, earphone and can then be eliminated in playing audio signal using the superposition of anti-phase noise cancellation signal in playing audio signal
When around ambient noise signal.
So, can be after completing to gather ambient noise signal, by electricity in actual applications with the embodiment of the present invention
Sub- equipment generates anti-phase noise cancellation signal by the ambient noise signal collected, finally sends anti-phase noise cancellation signal to earphone,
Enable earphone to utilize the ambient noise around the elimination of anti-phase noise cancellation signal when playing audio, improve the broadcasting sound of earphone
Matter, due in embodiments of the present invention, being to substitute earphone by using the powerful calculation function of electronic equipment to carry out noise reduction process,
Therefore the device of noise reduction process need not be loaded in earphone, simplifies Headphone structure, reduces earphone gross weight and volume.
Second embodiment
Reference picture 2, the flow chart of the method for the earphone noise-reduction method of one embodiment of the invention is shown, can specifically be wrapped
Include following steps：
Step 201, ambient noise signal is gathered；
In a preferred embodiment of the invention, when electronic equipment is provided with pick up facility electronics can be controlled to set
Standby pick up facility collection ambient noise signal.
In actual applications, the electronic equipment in the embodiment of the present invention can include the mobile end for being provided with pick up facility
End, audio-frequence player device, PC (personal computer, personal computer) etc..Wherein, pick up facility can be used for
The microphone of audio is gathered, for example, the microphone on mobile phone, the microphone on computer, the microphone on wireless headset etc..
In the specific implementation, whether the embodiment of the present invention can be provided with by the system detectio electronic equipment of electronic equipment
Pick up facility, when system judges that electronic equipment is provided with pick up facility, the pickup of installation on an electronic device can be utilized to set
Standby collection ambient noise signal.
In another preferred embodiment of the invention, picking up for earphone can be controlled when earphone is provided with pick up facility
Sound equipment gathers ambient noise signal, and controls earphone to send ambient noise signal to electronic equipment.
In actual applications, the earphone in the embodiment of the present invention can be the earphone for being provided with pick up facility, for example, installation
There are line control earphone, bluetooth earphone, Infrared earphone and 2.4G earphones of microphone etc..
In the specific implementation, whether the embodiment of the present invention it can have and can be called by the system detectio of electronic equipment
, the pick up facility of earphone is installed on, if so, then electronic equipment can control the pick up facility of earphone to gather ambient noise letter
Number, and control earphone that the ambient noise signal collected is sent in electronic equipment.
By taking mobile phone as an example, when mobile phone detects that user utilizes bluetooth earphone receiving and transmitting voice information, mobile phone can call indigo plant
Microphone on tooth earphone, ambient noise signal, and the ambient noise that will be collected are gathered by the microphone on bluetooth earphone
Signal is sent to mobile phone.
Step 202, the signal intensity of the ambient noise signal is determined；
In actual applications, not all sound field complex environment all can bring the excessively obvious sense of hearing to do to user
Disturb, if electronic equipment generates anti-phase noise cancellation signal when user is in the weaker place of signal intensity of ambient noise signal,
Not only not required for user, meanwhile, the calculating pressure of electronics processors is also increased, so, the embodiment of the present invention can
So that when it is determined that signal intensity is more than preset value, anti-phase noise cancellation signal is generated using ambient noise signal.
In the specific implementation, the present invention can determine that the ambient noise received is believed by the system software in electronic equipment
Number signal intensity.
For example, in android system, by the ambient noise signal got read (byte [] audioData, int
OffsetInBytes, int sizeInBytes) method, ambient noise signal is read into incoming byte arrays from buffering area
After audioData, can with to ambient noise signal it is squared and, after quadratic sum is tried to achieve, quadratic sum is substituted into Lp=
In 20log10 (Prms/Pref) dB formula, you can calculate decibel value, i.e. signal intensity.
When the signal intensity of the ambient noise signal is more than default intensity threshold, step 203 is performed；
Step 203, anti-phase noise cancellation signal is generated using the ambient noise signal；
In a preferred embodiment of the invention, can disappear in the following way using ambient noise signal generation is anti-phase
Noise cancellation signal：
Obtain phase, frequency and the amplitude of ambient noise signal；Using the phase, frequency and amplitude of ambient noise signal,
Generation is with ambient noise signal opposite in phase, frequency is identical and the anti-phase noise cancellation signal of amplitude identical.
For example, collecting ambient noise signal in the microphone that mobile phone is carried by it, or, receive by the wheat on earphone
After the ambient noise signal that gram wind is sent, the phase, frequency and amplitude of the ambient noise signal are parsed, after being parsed,
By the phase, frequency and amplitude parsed, generate with the opposite in phase of the ambient noise signal, frequency is identical and amplitude phase
Same anti-phase noise cancellation signal.
Step 204, the anti-phase noise cancellation signal is sent to earphone, the earphone is being broadcast using the anti-phase noise cancellation signal
Ambient noise signal is eliminated when putting audio signal.
In the specific implementation, the embodiment of the present invention can be set after electronic equipment generates anti-phase noise cancellation signal by electronics
It is standby to send anti-phase noise cancellation signal to earphone so that earphone can be identical using opposite in phase, frequency in playing audio signal
Noise cancellation signal superposition anti-phase with amplitude identical eliminates the ambient noise signal in playing audio signal, improves the broadcasting of earphone
Tonequality.
So, can be after completing to gather ambient noise signal, first really in actual applications with the embodiment of the present invention
The signal intensity of ambient noise signal is determined, when the signal intensity of ambient noise signal is more than default intensity threshold, then by electricity
Sub- equipment generates anti-phase noise cancellation signal by the ambient noise signal collected, finally sends anti-phase noise cancellation signal to earphone,
Enable earphone to utilize the ambient noise around the elimination of anti-phase noise cancellation signal when playing audio, improve the broadcasting sound of earphone
Matter, due in embodiments of the present invention, being to substitute earphone by using the powerful calculation function of electronic equipment to carry out noise reduction process,
Therefore the device of noise reduction process need not be loaded in earphone, simplifies Headphone structure, reduces earphone gross weight and volume, separately
Outside, the embodiment of the present invention can be it is determined that user just generates anti-phase noise cancellation signal, and then reduction when needing and carrying out noise reduction to earphone
The calculating pressure of electronics processors.
It should be noted that for embodiment of the method, in order to be briefly described, therefore it is all expressed as to a series of action group
Close, but those skilled in the art should know, the embodiment of the present invention is not limited by described sequence of movement, because according to
According to the embodiment of the present invention, some steps can use other orders or carry out simultaneously.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention is implemented
Necessary to example.
3rd embodiment
Reference picture 3, the structured flowchart of the mobile terminal of one embodiment of the invention is shown, the mobile terminal 300 is specific
Following module can be included：
Noise signal acquisition module 301, for gathering ambient noise signal；
Anti-phase noise cancellation signal generation module 302, for generating anti-phase noise cancellation signal using the ambient noise signal；
Anti-phase noise cancellation signal sending module 303, for the anti-phase noise cancellation signal to be sent to earphone, the earphone uses
The anti-phase noise cancellation signal eliminates ambient noise signal in playing audio signal.
In one preferred embodiment of the embodiment of the present invention, methods described is applied to electronic equipment, the electronic equipment peace
Equipped with pick up facility, or, the earphone is provided with pick up facility, and the noise signal acquisition module 301 can include as follows
Submodule：
First noise signal gathers submodule, for when the electronic equipment is provided with pick up facility, controlling the electricity
The pick up facility collection ambient noise signal of sub- equipment；
Second noise signal gathers submodule, for when the earphone is provided with pick up facility, controlling the earphone
Pick up facility gathers ambient noise signal, and controls the earphone to send the ambient noise signal to the electronic equipment.
In one preferred embodiment of the embodiment of the present invention, the anti-phase noise cancellation signal generation module 302 can be included such as
Lower submodule：
Ambient noise feature acquisition submodule, for obtaining the phase, frequency and amplitude of the ambient noise signal；
Anti-phase noise cancellation signal generates submodule, for phase, frequency and the amplitude using the ambient noise signal, generation
With the ambient noise signal opposite in phase, frequency is identical and the anti-phase noise cancellation signal of amplitude identical.
In one preferred embodiment of the embodiment of the present invention, the mobile terminal 300 can also include following module：
Signal intensity determining module, for determining the signal intensity of the ambient noise signal；
Anti-phase de-noising execution module, it is more than default intensity threshold for the signal intensity in the ambient noise signal
When, perform described the step of anti-phase noise cancellation signal is generated using the ambient noise signal.
So, can be after completing to gather ambient noise signal, by electricity in actual applications with the embodiment of the present invention
Sub- equipment generates anti-phase noise cancellation signal by the ambient noise signal collected, finally sends anti-phase noise cancellation signal to earphone,
Enable earphone to utilize the ambient noise around the elimination of anti-phase noise cancellation signal when playing audio, improve the broadcasting sound of earphone
Matter, due in embodiments of the present invention, being to substitute earphone by using the powerful calculation function of electronic equipment to carry out noise reduction process,
Therefore the device of noise reduction process need not be loaded in earphone, simplifies Headphone structure, reduces earphone gross weight and volume.
For mobile terminal embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple,
The relevent part can refer to the partial explaination of embodiments of method.
Fourth embodiment
Reference picture 4, the structured flowchart of the earphone of one embodiment of the invention is shown, the mobile terminal 400 specifically can be with
Including following module：
Anti-phase noise cancellation signal receiving module 401, for receiving phase to be opposite, frequency is identical and the anti-phase de-noising of amplitude identical
Signal；
Ambient noise signal cancellation module 402, for using the opposite in phase, frequency is identical and amplitude identical is anti-phase
Noise cancellation signal superposition eliminates the ambient noise signal in playing audio signal.
So, in actual applications with the embodiment of the present invention, ambient noise that can be by electronic equipment by collecting
The anti-phase noise cancellation signal of signal generation, finally anti-phase noise cancellation signal is sent to earphone so that earphone being capable of profit when playing audio
The ambient noise of surrounding is eliminated with anti-phase noise cancellation signal, the broadcasting tonequality of earphone is improved, due in embodiments of the present invention, being logical
Cross and substitute earphone progress noise reduction process using the powerful calculation function of electronic equipment, therefore need not be loaded in earphone at noise reduction
The device of reason, simplifies Headphone structure, reduces earphone gross weight and volume.
For earphone embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, it is related
Part illustrates referring to the part of embodiment of the method.
5th embodiment
Fig. 5 is the block diagram of the mobile terminal of another embodiment of the present invention.Mobile terminal 500 shown in Fig. 5 includes：At least
One processor 501, memory 502, at least one network interface 504 and other users interface 503.In mobile terminal 500
Each component is coupled by bus system 505.It is understood that bus system 505 is used to realize the company between these components
Connect letter.Bus system 505 is in addition to including data/address bus, in addition to power bus, controlling bus and status signal bus in addition.But
It is for the sake of clear explanation, various buses is all designated as bus system 505 in Figure 5.
Wherein, user interface 503 can include display, keyboard or pointing device (for example, mouse, trace ball
(trackball), touch-sensitive plate or touch-screen etc..
It is appreciated that the memory 502 in the embodiment of the present invention can be volatile memory or nonvolatile memory,
Or it may include both volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read-only storage (Read-
OnlyMemory, ROM), programmable read only memory (ProgrammableROM, PROM), Erasable Programmable Read Only Memory EPROM
(ErasablePROM, EPROM), Electrically Erasable Read Only Memory (ElectricallyEPROM, EEPROM) dodge
Deposit.Volatile memory can be random access memory (RandomAccessMemory, RAM), and it is used as outside slow at a high speed
Deposit.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static RAM
(StaticRAM, SRAM), dynamic random access memory (DynamicRAM, DRAM), Synchronous Dynamic Random Access Memory
(SynchronousDRAM, SDRAM), double data speed synchronous dynamic RAM (DoubleDataRate
SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links
Dynamic random access memory (SynchlinkDRAM, SLDRAM) and direct rambus random access memory
(DirectRambusRAM, DRRAM).The memory 502 of the system and method for description of the embodiment of the present invention is intended to include but unlimited
In these memories with any other suitable type.
In some embodiments, memory 502 stores following element, can perform module or data structure, or
Their subset of person, or their superset：Operating system 5021 and application program 5022.
Wherein, operating system 5021, comprising various system programs, such as ccf layer, core library layer, driving layer etc., it is used for
Realize various basic businesses and the hardware based task of processing.Application program 5022, include various application programs, such as media
Player (MediaPlayer), browser (Browser) etc., for realizing various applied business.Realize embodiment of the present invention side
The program of method may be embodied in application program 5022.
In embodiments of the present invention, by calling program or the instruction of the storage of memory 502, specifically, can be application
The program stored in program 5022 or instruction, processor 501 are used to gather ambient noise signal；Using the ambient noise signal
Generate anti-phase noise cancellation signal；The anti-phase noise cancellation signal is sent to earphone, the earphone is existed using the anti-phase noise cancellation signal
Ambient noise signal is eliminated during playing audio signal.
The method that the embodiments of the present invention disclose can apply in processor 501, or be realized by processor 501.
Processor 501 is probably a kind of IC chip, has the disposal ability of signal.In implementation process, the above method it is each
Step can be completed by the integrated logic circuit of the hardware in processor 501 or the instruction of software form.Above-mentioned processing
Device 501 can be general processor, digital signal processor (DigitalSignalProcessor, DSP), application specific integrated circuit
(ApplicationSpecific IntegratedCircuit, ASIC), ready-made programmable gate array
(FieldProgrammableGateArray, FPGA) either other PLDs, discrete gate or transistor logic
Device, discrete hardware components.It can realize or perform disclosed each method, step and the box in the embodiment of the present invention
Figure.General processor can be microprocessor or the processor can also be any conventional processor etc..With reference to the present invention
The step of method disclosed in embodiment, can be embodied directly in hardware decoding processor and perform completion, or use decoding processor
In hardware and software module combination perform completion.Software module can be located at random access memory, and flash memory, read-only storage can
In the ripe storage medium in this area such as program read-only memory or electrically erasable programmable memory, register.The storage
Medium is located at memory 502, and processor 501 reads the information in memory 502, and the step of the above method is completed with reference to its hardware
Suddenly.
It is understood that the embodiment of the present invention description these embodiments can use hardware, software, firmware, middleware,
Microcode or its combination are realized.Realized for hardware, processing unit can be realized in one or more application specific integrated circuits
(ApplicationSpecificIntegratedCircuits, ASIC), digital signal processor
(DigitalSignalProcessing, DSP), digital signal processing appts (DSPDevice, DSPD), programmable logic device
(ProgrammableLogicDevice, PLD), field programmable gate array (Field-ProgrammableGateArray,
FPGA), general processor, controller, microcontroller, microprocessor, other electronics lists for performing herein described function
In member or its combination.
For software realize, can by perform the module (such as process, function etc.) of function described in the embodiment of the present invention come
Realize the technology described in the embodiment of the present invention.Software code is storable in memory and passes through computing device.Memory can
To realize within a processor or outside processor.
Alternatively, processor 501 is additionally operable to：When the electronic equipment is provided with pick up facility, the electronics is controlled to set
Standby pick up facility collection ambient noise signal.
Alternatively, processor 501 is additionally operable to：When the earphone is provided with pick up facility, the pickup of the earphone is controlled
Equipment gathers ambient noise signal, and controls the earphone to send the ambient noise signal to the electronic equipment.
Alternatively, processor 501 is additionally operable to：Obtain the phase, frequency and amplitude of the ambient noise signal.
Alternatively, processor 501 is additionally operable to：Using the phase, frequency and amplitude of the ambient noise signal, generation and institute
State that ambient noise signal opposite in phase, frequency be identical and the anti-phase noise cancellation signal of amplitude identical.
Alternatively, processor 501 is additionally operable to：Determine the signal intensity of the ambient noise signal.
Alternatively, processor 501 is additionally operable to：When the signal intensity of the ambient noise signal is more than default intensity threshold
When, perform described the step of anti-phase noise cancellation signal is generated using the ambient noise signal.
Mobile terminal 500 can realize each process that mobile terminal is realized in previous embodiment, to avoid repeating, here
Repeat no more.
For the embodiment of mobile terminal 500, because it is substantially similar to embodiment of the method, so the comparison of description is simple
Single, the relevent part can refer to the partial explaination of embodiments of method.
The embodiment of the present invention is used in actual applications, can be set after completing to gather ambient noise signal by electronics
The standby ambient noise signal by collecting generates anti-phase noise cancellation signal, finally sends anti-phase noise cancellation signal to earphone so that
Earphone can utilize the ambient noise around the elimination of anti-phase noise cancellation signal when playing audio, improve the broadcasting tonequality of earphone, by
In in embodiments of the present invention, being to substitute earphone by using the powerful calculation function of electronic equipment to carry out noise reduction process, therefore
The device of noise reduction process need not be loaded in earphone, simplifies Headphone structure, reduces earphone gross weight and volume.
Sixth embodiment
Fig. 6 is the structural representation of the mobile terminal of another embodiment of the present invention.Specifically, the mobile terminal in Fig. 6
600 can be mobile phone, tablet personal computer, personal digital assistant (PersonalDigital Assistant, PDA) or vehicle-mounted computer
Deng.
Mobile terminal 600 in Fig. 6 includes radio frequency (RadioFrequency, RF) circuit 610, memory 620, input list
Member 630, display unit 640, processor 660, voicefrequency circuit 670, WiFi (WirelessFidelity) module 680 and power supply
690。
Wherein, input block 630 can be used for the numeral or character information for receiving user's input, and generation and mobile terminal
The signal input that 600 user is set and function control is relevant.Specifically, in the embodiment of the present invention, the input block 630 can
With including contact panel 631.Contact panel 631, also referred to as touch-screen, collect touch operation of the user on or near it
(for example user uses the operations of any suitable object or annex on contact panel 631 such as finger, stylus), and according to advance
The formula of setting drives corresponding attachment means.Optionally, contact panel 631 may include touch detecting apparatus and touch controller
Two parts.Wherein, the touch orientation of touch detecting apparatus detection user, and the signal that touch operation is brought is detected, by signal
Send touch controller to；Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate,
Give the processor 660 again, and the order sent of reception processing device 660 and can be performed.Furthermore, it is possible to using resistance-type,
The polytypes such as condenser type, infrared ray and surface acoustic wave realize contact panel 631.Except contact panel 631, input block
630 can also include other input equipments 632, and other input equipments 632 can include but is not limited to physical keyboard, function key
One or more in (such as volume control button, switch key etc.), trace ball, mouse, action bars etc..
Wherein, display unit 640 can be used for display by the information of user's input or be supplied to information and the movement of user
The various menu interfaces of terminal 600.Display unit 640 may include display panel 641, optionally, can use LCD or organic hairs
The forms such as optical diode (OrganicLight-EmittingDiode, OLED) configure display panel 641.
It should be noted that contact panel 631 can cover display panel 641, touch display screen is formed, when the touch display screen is examined
After measuring the touch operation on or near it, processor 660 is sent to determine the type of touch event, is followed by subsequent processing device
660 provide corresponding visual output according to the type of touch event in touch display screen.
Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface viewing area
And arrangement mode of the conventional control viewing area does not limit, can be arranged above and below, left-right situs etc. can distinguish two it is aobvious
Show the arrangement mode in area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can be with
The interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface viewing area
It can also be the empty interface not comprising any content.The conventional control viewing area is used to show the higher control of utilization rate, for example,
Application icons such as settings button, interface numbering, scroll bar, phone directory icon etc..
Wherein processor 660 is the control centre of mobile terminal 600, utilizes various interfaces and connection whole mobile phone
Various pieces, by running or performing the software program and/or module that are stored in first memory 621, and call storage
Data in second memory 622, the various functions and processing data of mobile terminal 600 are performed, so as to mobile terminal 600
Carry out integral monitoring.Optionally, processor 660 may include one or more processing units.
In embodiments of the present invention, by call store the first memory 621 in software program and/or module and/
Or the data in the second memory 622, processor 660 are used to gather ambient noise signal；Using the ambient noise signal
Generate anti-phase noise cancellation signal；The anti-phase noise cancellation signal is sent to earphone, the earphone is existed using the anti-phase noise cancellation signal
Ambient noise signal is eliminated during playing audio signal.
Alternatively, processor 660 is additionally operable to：When the electronic equipment is provided with pick up facility, the electronics is controlled to set
Standby pick up facility collection ambient noise signal.
Alternatively, processor 660 is additionally operable to：When the earphone is provided with pick up facility, the pickup of the earphone is controlled
Equipment gathers ambient noise signal, and controls the earphone to send the ambient noise signal to the electronic equipment.
Alternatively, processor 660 is additionally operable to：Obtain the phase, frequency and amplitude of the ambient noise signal.
Alternatively, processor 660 is additionally operable to：Using the phase, frequency and amplitude of the ambient noise signal, generation and institute
State that ambient noise signal opposite in phase, frequency be identical and the anti-phase noise cancellation signal of amplitude identical.
Alternatively, processor 660 is additionally operable to：Determine the signal intensity of the ambient noise signal.
Alternatively, processor 660 is additionally operable to：When the signal intensity of the ambient noise signal is more than default intensity threshold
When, perform described the step of anti-phase noise cancellation signal is generated using the ambient noise signal.
For the embodiment of mobile terminal 600, because it is substantially similar to embodiment of the method, so the comparison of description is simple
Single, the relevent part can refer to the partial explaination of embodiments of method.
It can be seen that in actual applications with the embodiment of the present invention, can be after completing to gather ambient noise signal, by electricity
Sub- equipment generates anti-phase noise cancellation signal by the ambient noise signal collected, finally sends anti-phase noise cancellation signal to earphone,
Enable earphone to utilize the ambient noise around the elimination of anti-phase noise cancellation signal when playing audio, improve the broadcasting sound of earphone
Matter, due in embodiments of the present invention, being to substitute earphone by using the powerful calculation function of electronic equipment to carry out noise reduction process,
Therefore the device of noise reduction process need not be loaded in earphone, simplifies Headphone structure, reduces earphone gross weight and volume.
Those of ordinary skill in the art it is to be appreciated that with reference to disclosed in the embodiment of the present invention embodiment description it is each
The unit and algorithm steps of example, it can be realized with the combination of electronic hardware or computer software and electronic hardware.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In embodiment provided herein, it should be understood that disclosed apparatus and method, others can be passed through
Mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, is only
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit
Connect, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to be contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are causing a computer equipment (can be
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the present invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can be with store program codes
Medium.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of earphone noise-reduction method, it is characterised in that the noise-reduction method includes：
Gather ambient noise signal；
Anti-phase noise cancellation signal is generated using the ambient noise signal；
The anti-phase noise cancellation signal is sent to earphone, the earphone is using the anti-phase noise cancellation signal in playing audio signal
Eliminate ambient noise signal.
2. according to the method for claim 1, it is characterised in that methods described is applied to electronic equipment, the electronic equipment
Pick up facility is installed, or, the earphone is provided with pick up facility, the step of the collection ambient noise signal, including：
When the electronic equipment is provided with pick up facility, the pick up facility of the electronic equipment is controlled to gather ambient noise letter
Number；
When the earphone is provided with pick up facility, the pick up facility of the earphone is controlled to gather ambient noise signal, and control
The earphone sends the ambient noise signal to the electronic equipment.
3. according to the method for claim 1, it is characterised in that described that anti-phase de-noising is generated using the ambient noise signal
The step of signal, including：
Obtain the phase, frequency and amplitude of the ambient noise signal；
Using the phase, frequency and amplitude of the ambient noise signal, generation and the ambient noise signal opposite in phase, frequency
The identical and anti-phase noise cancellation signal of amplitude identical.
4. according to the method for claim 1, it is characterised in that disappear described using ambient noise signal generation is anti-phase
Before the step of noise cancellation signal, in addition to：
Determine the signal intensity of the ambient noise signal；
When the signal intensity of the ambient noise signal is more than default intensity threshold, perform described using the ambient noise
The step of signal generation anti-phase noise cancellation signal.
5. according to the method for claim 2, it is characterised in that the electronic equipment includes mobile terminal.
6. a kind of mobile terminal, it is characterised in that the mobile terminal includes：
Noise signal acquisition module, for gathering ambient noise signal；
Anti-phase noise cancellation signal generation module, for generating anti-phase noise cancellation signal using the ambient noise signal；
Anti-phase noise cancellation signal sending module, for the anti-phase noise cancellation signal to be sent to earphone, the earphone is using described anti-
Phase noise cancellation signal eliminates ambient noise signal in playing audio signal.
7. mobile terminal according to claim 6, it is characterised in that methods described is applied to electronic equipment, the electronics
Equipment is provided with pick up facility, or, the earphone is provided with pick up facility, and the noise signal acquisition module includes：
First noise signal gathers submodule, for when the electronic equipment is provided with pick up facility, controlling the electronics to set
Standby pick up facility collection ambient noise signal；
Second noise signal gathers submodule, for when the earphone is provided with pick up facility, controlling the pickup of the earphone
Equipment gathers ambient noise signal, and controls the earphone to send the ambient noise signal to the electronic equipment.
8. mobile terminal according to claim 1, it is characterised in that the anti-phase noise cancellation signal generation module includes：
Ambient noise feature acquisition submodule, for obtaining the phase, frequency and amplitude of the ambient noise signal；
Anti-phase noise cancellation signal generates submodule, for phase, frequency and the amplitude using the ambient noise signal, generation and institute
State that ambient noise signal opposite in phase, frequency be identical and the anti-phase noise cancellation signal of amplitude identical.
9. mobile terminal according to claim 6, it is characterised in that also include：
Signal intensity determining module, for determining the signal intensity of the ambient noise signal；
Anti-phase de-noising execution module, for when the signal intensity of the ambient noise signal is more than default intensity threshold, holding
Go described the step of anti-phase noise cancellation signal is generated using the ambient noise signal.
A kind of 10. earphone, it is characterised in that including：
Anti-phase noise cancellation signal receiving module, for receiving phase to be opposite, frequency is identical and the anti-phase noise cancellation signal of amplitude identical；
Ambient noise signal cancellation module, for using, the opposite in phase, frequency are identical and the anti-phase de-noising letter of amplitude identical
Number superposition eliminates ambient noise signal in playing audio signal.
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