CN105338452A - Method for achieving noise reduction in electronic terminal and electronic terminal thereof - Google Patents
Method for achieving noise reduction in electronic terminal and electronic terminal thereof Download PDFInfo
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- CN105338452A CN105338452A CN201510889889.8A CN201510889889A CN105338452A CN 105338452 A CN105338452 A CN 105338452A CN 201510889889 A CN201510889889 A CN 201510889889A CN 105338452 A CN105338452 A CN 105338452A
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- ambient noise
- electric terminal
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- noising signal
- earphone
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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
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Headphones And Earphones (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention provides a method for achieving noise reduction in an electronic terminal and the electronic terminal thereof. The electronic terminal is connected with an earphone. The method includes the steps that environmental noise is acquired through a microphone of the electronic terminal; terminal noise reduction signals for offsetting the environmental noise are generated; the terminal noise reduction signals are output through the electronic terminal and/or the earphone according to the type of the earphone. According to the method and the electronic terminal thereof, noise reduction can be achieved based on the environmental noise acquired by the microphone of the electronic terminal.
Description
Technical field
All things considered of the present invention relates to electric terminal field, more particularly, relate to a kind of in electric terminal, realize noise reduction method and the electric terminal of application the method.
Background technology
At the larger environment of background noise (such as, road, subway, bar) under, (namely user has the bi-telephone of active noise reduction function by use, there is the earphone of left ear unit and auris dextra unit), still clearly can hear music, dialog context etc. that electric terminal is exported by earphone.But, there is the earphone price general charged of active noise reduction function costly, and earphone common at present, namely allow to realize noise reduction by electric terminal, noise reduction is also undesirable; Further, the single head-receiver (that is, only having the earphone of left ear unit or auris dextra unit) with active noise reduction function also cannot reach desirable ears noise reduction.
Summary of the invention
Exemplary embodiment of the present invention is that provide a kind of realizes the method for noise reduction and the electric terminal of application the method in electric terminal, and its ambient noise that can gather based on the microphone of electric terminal realizes noise reduction.
According to exemplary embodiment of the present invention, provide a kind of method realizing noise reduction in electric terminal, wherein, electric terminal is connected with earphone, and described method comprises: gather ambient noise by the microphone of electric terminal; Generate the terminal de-noising signal for offsetting described ambient noise; Type according to described earphone exports described terminal de-noising signal by electric terminal and/or described earphone.
Alternatively, detecting that electric terminal is near the ear of user, gather ambient noise by the microphone of electric terminal, wherein, export described terminal de-noising signal according to the type of described earphone by the side headphone unit of the close electric terminal of electric terminal and/or described earphone.
Alternatively, described earphone has left ear unit and auris dextra unit, wherein, exports described terminal de-noising signal by the side headphone unit of the close electric terminal of described earphone.
Alternatively, described earphone does not have microphone, and described method also comprises: based on the offside de-noising signal of the ambient noise near the opposite side headphone unit that described ambient noise generates for offsetting described earphone; Described offside de-noising signal is exported by described opposite side headphone unit.
Alternatively, described earphone is being provided with one-sided microphone near headphone unit place, side, wherein, detecting that electric terminal is near the side headphone unit away from one-sided microphone of described earphone, generates the terminal de-noising signal for offsetting described ambient noise.
Alternatively, described method also comprises: detecting that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, and the ambient noise based on described ambient noise and one-sided microphone collection generates the terminal de-noising signal for offsetting the ambient noise near the headphone unit of described side.
Alternatively, described method also comprises: detecting that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, based on the offside de-noising signal of the ambient noise near the opposite side headphone unit that the ambient noise of described ambient noise and one-sided microphone collection generates for offsetting described earphone; Described offside de-noising signal is exported by described opposite side headphone unit.
Alternatively, described earphone has left ear unit and auris dextra unit, and be provided with one-sided microphone near headphone unit place, side, described method also comprises: when detecting that electric terminal does not have the ear of close user, based on the offside de-noising signal of ambient noise generation for offsetting the ambient noise near away from the side headphone unit of one-sided microphone that one-sided microphone gathers, wherein, described offside de-noising signal is exported by described side headphone unit.
Alternatively, described earphone has one-sided headphone unit, wherein, exports described terminal de-noising signal by the receiver of electric terminal.
Alternatively, described earphone does not have microphone, and described method also comprises: based on the offside de-noising signal of the ambient noise near the one-sided headphone unit that described ambient noise generates for offsetting described earphone; Described offside de-noising signal is exported by the one-sided headphone unit of described earphone.
According to another exemplary embodiment of the present invention, provide a kind of electric terminal realizing noise reduction, wherein, electric terminal is connected with earphone, and described electric terminal comprises: Noise Acquisition unit, gathers ambient noise; De-noising signal generation unit, generates the terminal de-noising signal for offsetting described ambient noise; Output control unit, exports described terminal de-noising signal according to the Type Control electric terminal of described earphone and/or described earphone.
Alternatively, described electric terminal also comprises: gather control unit, detecting that electric terminal is near the ear of user, control noises collecting unit gathers ambient noise, wherein, output control unit exports described terminal de-noising signal according to the side headphone unit of the Type Control electric terminal of described earphone and/or the close electric terminal of described earphone.
Alternatively, described earphone has left ear unit and auris dextra unit, and wherein, the side headphone unit that output control unit controls the close electric terminal of described earphone exports described terminal de-noising signal.
Alternatively, described earphone does not have microphone, wherein, de-noising signal generation unit also generate for offsetting described earphone opposite side headphone unit based on described ambient noise near the offside de-noising signal of ambient noise, output control unit also controls described opposite side headphone unit and exports described offside de-noising signal.
Alternatively, described earphone is being provided with one-sided microphone near headphone unit place, side, wherein, de-noising signal generation unit is detecting that electric terminal is near the side headphone unit away from one-sided microphone of described earphone, generates the terminal de-noising signal for offsetting described ambient noise.
Alternatively, de-noising signal generation unit is detecting that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, and the ambient noise based on described ambient noise and one-sided microphone collection generates the terminal de-noising signal for offsetting the ambient noise near the headphone unit of described side.
Alternatively, de-noising signal generation unit is also detecting that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, based on the offside de-noising signal of the ambient noise near the opposite side headphone unit that the ambient noise of described ambient noise and one-sided microphone collection generates for offsetting described earphone, output control unit also controls described opposite side headphone unit and exports described offside de-noising signal.
Alternatively, described earphone has left ear unit and auris dextra unit, and be provided with one-sided microphone near headphone unit place, side, wherein, de-noising signal generation unit is when detecting that electric terminal does not have the ear of close user, based on the offside de-noising signal of ambient noise generation for offsetting the ambient noise near away from the side headphone unit of one-sided microphone that one-sided microphone gathers, output control unit controls described side headphone unit and exports described offside de-noising signal.
Alternatively, described earphone has one-sided headphone unit, and wherein, the receiver that output control unit controls electric terminal exports described terminal de-noising signal.
Alternatively, described earphone does not have microphone, wherein, de-noising signal generation unit also generate for offsetting described earphone one-sided headphone unit based on described ambient noise near the offside de-noising signal of ambient noise; The one-sided headphone unit that output control unit also controls described earphone exports described offside de-noising signal.
According to another exemplary embodiment of the present invention, provide a kind of device realizing noise reduction in electric terminal, wherein, electric terminal is connected with earphone, and described device comprises: Noise Acquisition unit, gathers ambient noise; De-noising signal generation unit, generates the terminal de-noising signal for offsetting described ambient noise; Output control unit, exports described terminal de-noising signal according to the Type Control electric terminal of described earphone and/or described earphone.
Alternatively, described device also comprises: gather control unit, detecting that electric terminal is near the ear of user, control noises collecting unit gathers ambient noise, wherein, output control unit exports described terminal de-noising signal according to the side headphone unit of the Type Control electric terminal of described earphone and/or the close electric terminal of described earphone.
Alternatively, described earphone has left ear unit and auris dextra unit, and wherein, the side headphone unit that output control unit controls the close electric terminal of described earphone exports described terminal de-noising signal.
Alternatively, described earphone does not have microphone, wherein, de-noising signal generation unit also generate for offsetting described earphone opposite side headphone unit based on described ambient noise near the offside de-noising signal of ambient noise, output control unit also controls described opposite side headphone unit and exports described offside de-noising signal.
Alternatively, described earphone is being provided with one-sided microphone near headphone unit place, side, wherein, de-noising signal generation unit is detecting that electric terminal is near the side headphone unit away from one-sided microphone of described earphone, generates the terminal de-noising signal for offsetting described ambient noise.
Alternatively, de-noising signal generation unit is detecting that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, and the ambient noise based on described ambient noise and one-sided microphone collection generates the terminal de-noising signal for offsetting the ambient noise near the headphone unit of described side.
Alternatively, de-noising signal generation unit is also detecting that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, based on the offside de-noising signal of the ambient noise near the opposite side headphone unit that the ambient noise of described ambient noise and one-sided microphone collection generates for offsetting described earphone, output control unit also controls described opposite side headphone unit and exports described offside de-noising signal.
Alternatively, described earphone has left ear unit and auris dextra unit, and be provided with one-sided microphone near headphone unit place, side, wherein, de-noising signal generation unit is when detecting that electric terminal does not have the ear of close user, based on the offside de-noising signal of ambient noise generation for offsetting the ambient noise near away from the side headphone unit of one-sided microphone that one-sided microphone gathers, output control unit controls described side headphone unit and exports described offside de-noising signal.
Alternatively, described earphone has one-sided headphone unit, and wherein, the receiver that output control unit controls electric terminal exports described terminal de-noising signal.
Alternatively, described earphone does not have microphone, wherein, de-noising signal generation unit also generate for offsetting described earphone one-sided headphone unit based on described ambient noise near the offside de-noising signal of ambient noise; The one-sided headphone unit that output control unit also controls described earphone exports described offside de-noising signal.
In the method realizing noise reduction according to an exemplary embodiment of the present invention in electric terminal and electric terminal thereof, the ambient noise that can gather based on the microphone of electric terminal realizes noise reduction.
Part in ensuing description is set forth general plotting of the present invention other in and/or advantage, some will be clearly by describing, or can learn through the enforcement of general plotting of the present invention.
Accompanying drawing explanation
By below in conjunction with exemplarily illustrating the description that the accompanying drawing of embodiment carries out, the above and other object of exemplary embodiment of the present and feature will become apparent, wherein:
Fig. 1 illustrates the flow chart of the method realizing noise reduction according to an exemplary embodiment of the present invention in electric terminal;
Fig. 2 illustrates the example realizing ears noise reduction according to an exemplary embodiment of the present invention in electric terminal;
Fig. 3 illustrates another example realizing ears noise reduction according to an exemplary embodiment of the present invention in electric terminal;
Fig. 4 illustrates the block diagram of the electric terminal realizing noise reduction according to an exemplary embodiment of the present invention.
Embodiment
Now will in detail with reference to embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein, identical label refers to identical parts all the time.Below by referring to accompanying drawing, described embodiment will be described, to explain the present invention.
Fig. 1 illustrates the flow chart of the method realizing noise reduction according to an exemplary embodiment of the present invention in electric terminal.Described method by being arranged on the execution that should be used for for noise reduction in electric terminal, or is performed by the function program realized in the operating system of electric terminal.Here, described electric terminal is connected with earphone, and user wears described earphone.Exemplarily, described electric terminal is connected with earphone by wired or wireless (such as, bluetooth etc.) mode.
With reference to Fig. 1, in step S10, gather ambient noise by the microphone of electric terminal.
Exemplarily, can come to gather ambient noise by the microphone of electric terminal according to the operation of user.Such as, when the operation for noise reduction receiving user, ambient noise can be gathered by the microphone of electric terminal.The described operation for noise reduction can be contact action, physical button operation, acoustic control operation etc.
As another example, electric terminal can gather ambient noise by the microphone of electric terminal automatically.Such as, can detect that electric terminal is near the ear of user, by the ambient noise near the ear of the microphone collection user of electric terminal.Here, detected electrons terminal is carried out whether near the ear of user by various technology.Such as, detected electrons terminal is carried out whether near the ear of user by proximity transducer etc.
In addition, also after the operation for noise reduction receiving user, can detect that electric terminal is near the ear of user when, gather ambient noise by the microphone of electric terminal.
In step S20, generate the terminal de-noising signal for offsetting described ambient noise.Generating the terminal de-noising signal for offsetting described ambient noise by various mode, not repeating them here.
In step S30, the type according to described earphone exports described terminal de-noising signal by electric terminal and/or described earphone.Particularly, according to the type of described earphone by electric terminal (such as, the receiver, loud speaker etc. of electric terminal), or earphone, or electric terminal and earphone export described terminal de-noising signal.The type of described earphone can comprise: have the bi-telephone of one-sided microphone (namely, there is the earphone of left ear unit and auris dextra unit), do not have microphone bi-telephone, there is the single head-receiver (that is, only having the earphone of left ear unit or auris dextra unit) of microphone, not there is the single head-receiver etc. of microphone.
Exemplarily, in step S10, can detect that electric terminal is near the ear of user, ambient noise is gathered by the microphone of electric terminal, in step S20, generating terminal de-noising signal for offsetting described ambient noise, in step S30, described terminal de-noising signal can be exported according to the type of described earphone by the side headphone unit of the close electric terminal of electric terminal and/or described earphone.
For described earphone for having the earphone of left ear unit and auris dextra unit, in step S10, can detect that electric terminal is near the ear of user, ambient noise is gathered by the microphone of electric terminal, in step S20, generate the terminal de-noising signal for offsetting described ambient noise, in step S30, the side headphone unit by the close electric terminal of described earphone exports described terminal de-noising signal.That is, generate the terminal de-noising signal of the ambient noise near the side ear for offsetting the close user of electric terminal and exported to user by this side headphone unit, thus the ambient noise that user eavesdrops at this ear can be reduced.
Further, exemplarily, there is left ear unit and auris dextra unit and under not having microphone situation, the method realizing noise reduction according to an exemplary embodiment of the present invention in electric terminal also can comprise: the offside de-noising signal generating the ambient noise near the opposite side headphone unit for offsetting described earphone based on described ambient noise at described earphone; Then described offside de-noising signal is exported by described opposite side headphone unit.Namely, generating the terminal de-noising signal of the ambient noise near the side ear for offsetting the close user of electric terminal and while being exported to user by this side headphone unit, also generate the offside de-noising signal of the ambient noise near the opposite side ear for offsetting user and exported to user by opposite side headphone unit, thus user is when wearing the earphone without microphone, the ambient noise that user eavesdrops at ears still can be reduced.Here, generate for offsetting described earphone opposite side headphone unit by various mode based on the ambient noise near the side headphone unit collected near the offside de-noising signal of ambient noise.Such as, can generate for offsetting described earphone opposite side headphone unit according to the space transitive relation of sound wave based on the ambient noise near the side headphone unit collected near the offside de-noising signal of ambient noise.
As another example, at described earphone, there is left ear unit and auris dextra unit, and described earphone at close side headphone unit (namely, left ear unit or auris dextra unit) place is when being provided with one-sided microphone, in step S20, can detect that electric terminal is near the side headphone unit away from one-sided microphone of described earphone, generate the terminal de-noising signal for offsetting described ambient noise, in step S30, by described earphone the side headphone unit away from one-sided microphone (namely, the side headphone unit of the close electric terminal of described earphone) export described terminal de-noising signal.Here, by various mode detected electrons terminal whether near the side headphone unit away from one-sided microphone of described earphone.Such as, the ambient noise that can collect according to the microphone of electric terminal and being determined by the correlation between the signal that exports away from the side headphone unit of one-sided microphone, if both correlations are high, then can determine the side headphone unit away from one-sided microphone of electric terminal near described earphone.
Correspondingly, the method realizing noise reduction according to an exemplary embodiment of the present invention in electric terminal also can comprise: gather ambient noise by the one-sided microphone of described earphone; Generate the de-noising signal for offsetting the ambient noise gathered by the one-sided microphone of described earphone; This de-noising signal is exported by the side headphone unit of the close one-sided microphone of described earphone, thus realization reduces the ambient noise that user eavesdrops at ears, and realize the noise reduction of corresponding ear side due to the ambient noise respectively based on each ear side, improve noise reduction.Fig. 2 illustrates the example realizing ears noise reduction according to an exemplary embodiment of the present invention in electric terminal, as shown in Figure 2, the ambient noise of different ear side is gathered respectively by the microphone of earphone and the microphone of electric terminal, and exported by respective side headphone unit by the corresponding de-noising signal generated, thus realize good ears noise reduction.
Exemplarily, the method realizing noise reduction according to an exemplary embodiment of the present invention in electric terminal also can comprise: detecting that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, ambient noise based on described ambient noise and one-sided microphone collection generates the terminal de-noising signal for offsetting the ambient noise near the headphone unit of described side, and exports this de-noising signal by the side headphone unit of the close one-sided microphone of described earphone.That is, the ambient noise that the ambient noise collected based on the microphone of electric terminal and the microphone of earphone collect generates terminal de-noising signal, thus improves noise reduction.
Correspondingly, the method realizing noise reduction according to an exemplary embodiment of the present invention in electric terminal also can comprise: detecting that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, based on the offside de-noising signal of the ambient noise near the opposite side headphone unit that the ambient noise of described ambient noise and one-sided microphone collection generates for offsetting described earphone; Described offside de-noising signal is exported by described opposite side headphone unit.Namely, generating the terminal de-noising signal of the ambient noise near the side ear for offsetting the close user of electric terminal and while being exported to user by the headphone unit of this side, also generate the offside de-noising signal of the ambient noise near the opposite side ear for offsetting user and exported to user by opposite side headphone unit, thus realization reduces the ambient noise that user eavesdrops at ears.
In addition, exemplarily, at described earphone, there is left ear unit and auris dextra unit, and when being provided with one-sided microphone near headphone unit place, side, the method realizing noise reduction according to an exemplary embodiment of the present invention in electric terminal also can comprise: when detecting that electric terminal does not have the ear of close user, based on the offside de-noising signal of ambient noise generation for offsetting the ambient noise near away from the side headphone unit of one-sided microphone that one-sided microphone gathers, wherein, described offside de-noising signal is exported by described side headphone unit.Correspondingly, also can generate the de-noising signal for offsetting the ambient noise gathered by one-sided microphone and export this de-noising signal by the side headphone unit of the close one-sided microphone of described earphone, thus realization reduces the ambient noise that user eavesdrops at ears.
Take described earphone as the earphone with one-sided headphone unit, in step S10, can detect that electric terminal is near the ear of user, ambient noise is gathered by the microphone of electric terminal, in step S20, generate the terminal de-noising signal for offsetting described ambient noise, in step S30, the receiver by electric terminal exports described terminal de-noising signal.Particularly, user wears single head-receiver on the ear of side, if user needs to carry out noise reduction, can by the side ear of electric terminal near non-wear headphones, thus electric terminal is detecting that electric terminal is near the ear of user, gather ambient noise by the microphone of electric terminal, generate for offset this to pick up the ears piece near ambient noise terminal de-noising signal and exported by the receiver of electric terminal, to reduce the ambient noise that user eavesdrops at this ear.
Further, exemplarily, when described earphone has one-sided headphone unit and does not have microphone, the method realizing noise reduction according to an exemplary embodiment of the present invention in electric terminal also can comprise: based on the offside de-noising signal of the ambient noise near the one-sided headphone unit that described ambient noise generates for offsetting described earphone, and export described offside de-noising signal by the one-sided headphone unit of described earphone.Namely, generating the terminal de-noising signal of the ambient noise near the side ear for offsetting the close user of electric terminal and while being exported to user by the receiver of electric terminal, also generate the offside de-noising signal of the ambient noise near the opposite side ear for offsetting user and exported to user by opposite side headphone unit, thus user is when wearing single head-receiver, the ambient noise that user eavesdrops at ears still can be reduced.
As another example, when described earphone has one-sided headphone unit and has microphone, the method realizing noise reduction according to an exemplary embodiment of the present invention in electric terminal also can comprise: gather ambient noise by the microphone of described earphone; Generate the de-noising signal for offsetting the ambient noise gathered by the microphone of described earphone; This de-noising signal is exported by the one-sided headphone unit of described earphone.Thus user is when wearing single head-receiver, the noise that user eavesdrops at ears still can be reduced.
As another example, described single head-receiver has active noise reduction function (such as, active noise reduction bluetooth earphone), thus user can be realized when wearing single head-receiver according to exemplary embodiment of the present invention, still can reduce the ambient noise that user eavesdrops at ears.Fig. 3 illustrates another example realizing ears noise reduction according to an exemplary embodiment of the present invention in electric terminal, as shown in Figure 3, the side ear of user has worn active noise reduction bluetooth earphone, microphone by electric terminal gathers the ambient noise near opposite side ear, and exported by the receiver of electric terminal by the corresponding de-noising signal generated, thus realize good ears noise reduction.
Fig. 4 illustrates the block diagram of the electric terminal realizing noise reduction according to an exemplary embodiment of the present invention.Here, exemplarily, described electric terminal can be mobile communication terminal (such as, smart mobile phone), intelligent wearable device (such as, intelligent watch), personal computer, panel computer, game machine, digital multimedia player etc. can the electric terminals of frames connecting with headphone.
As shown in Figure 4, the electric terminal realizing noise reduction according to an exemplary embodiment of the present invention comprises: Noise Acquisition unit 10, de-noising signal generation unit 20 and output control unit 30.These unit realize by special device, exemplarily, described unit can be realized by the common hardware such as digital signal processor, field programmable gate array processor, also realize by dedicated hardware processors such as special chips, also can be realized with software mode by computer program completely, such as, be implemented as be arranged in electric terminal for the module in the application of noise reduction, or be implemented as the function program realized in the operating system of electric terminal.
Here, should be appreciated that, described electric terminal, except having Noise Acquisition unit 10, de-noising signal generation unit 20 and output control unit 30, also can have it performs himself function other device as electric terminal.Such as, described electric terminal is as necessary devices of electric terminal such as mobile communication terminal, panel computer, game machine, digital multimedia players, and the present invention is not restricted this.
Particularly, Noise Acquisition unit 10 is for gathering ambient noise.Such as, Noise Acquisition unit 10 can be the device that the microphone etc. of electric terminal can gather ambient noise.
Exemplarily, the electric terminal realizing noise reduction according to an exemplary embodiment of the present invention also can comprise: gather control unit (not shown).Gather control unit and gather ambient noise for control noises collecting unit 10.
Exemplarily, gather control unit to carry out control noises collecting unit 10 according to the operation of user and gather ambient noise.Such as, can when the operation for noise reduction receiving user, control noises collecting unit 10 gathers ambient noise.The described operation for noise reduction can be contact action, physical button operation, acoustic control operation etc.
As another example, gather control unit and automatically can gather ambient noise by control noises collecting unit 10.Such as, gather control unit and can detect that electric terminal is near the ear of user, control noises collecting unit 10 gathers the ambient noise near the ear of user.Here, gather control unit and carry out detected electrons terminal whether near the ear of user by various technology.Such as, detected electrons terminal is carried out whether near the ear of user by proximity transducer etc.
In addition, gathering control unit also can after the operation for noise reduction receiving user, and detect that electric terminal is near the ear of user when, control noises collecting unit 10 gathers ambient noise.
De-noising signal generation unit 20 is for generating the terminal de-noising signal for offsetting described ambient noise.De-noising signal generation unit 20 generates the terminal de-noising signal for offsetting described ambient noise by various mode, does not repeat them here.
Output control unit 30 is for exporting described terminal de-noising signal according to the Type Control electric terminal of described earphone and/or described earphone.Particularly, output control unit 30 is according to the Type Control electric terminal (such as, the receiver, loud speaker etc. of electric terminal) of described earphone, or earphone, or electric terminal and earphone export described terminal de-noising signal.The type of described earphone can comprise: have the bi-telephone of one-sided microphone (namely, there is the earphone of left ear unit and auris dextra unit), do not have microphone bi-telephone, there is the single head-receiver (that is, only having the earphone of left ear unit or auris dextra unit) of microphone, not there is the single head-receiver etc. of microphone.
Exemplarily, gather control unit and can detect that electric terminal is near the ear of user, control noises collecting unit 10 gathers ambient noise, de-noising signal generation unit 20 generates the terminal de-noising signal for offsetting described ambient noise, and output control unit 30 can export described terminal de-noising signal according to the side headphone unit of the close electric terminal of the Type Control electric terminal of described earphone and/or described earphone.
For described earphone for having the earphone of left ear unit and auris dextra unit, gather control unit and can detect that electric terminal is near the ear of user, control noises collecting unit 10 gathers ambient noise, de-noising signal generation unit 20 generates the terminal de-noising signal for offsetting described ambient noise, and the side headphone unit that output control unit 30 can control the close electric terminal of described earphone exports described terminal de-noising signal.That is, generate the terminal de-noising signal of the ambient noise near the side ear for offsetting the close user of electric terminal and exported to user by this side headphone unit, thus the ambient noise that user eavesdrops at this ear can be reduced.
Further, exemplarily, there is left ear unit and auris dextra unit and under not there is microphone situation at described earphone, the offside de-noising signal of the ambient noise near the opposite side headphone unit that de-noising signal generation unit 20 also can generate for offsetting described earphone based on described ambient noise; Output control unit 30 also can control described opposite side headphone unit and export described offside de-noising signal.Namely, generating the terminal de-noising signal of the ambient noise near the side ear for offsetting the close user of electric terminal and while being exported to user by this side headphone unit, also generate the offside de-noising signal of the ambient noise near the opposite side ear for offsetting user and exported to user by opposite side headphone unit, thus user is when wearing the earphone without microphone, the ambient noise that user eavesdrops at ears still can be reduced.Here, de-noising signal generation unit 20 generate for offsetting described earphone opposite side headphone unit by various mode based on the ambient noise near the side headphone unit collected near the offside de-noising signal of ambient noise.Such as, de-noising signal generation unit 20 can generate for offsetting described earphone opposite side headphone unit according to the space transitive relation of sound wave based on the ambient noise near the side headphone unit collected near the offside de-noising signal of ambient noise.
As another example, at described earphone, there is left ear unit and auris dextra unit, and described earphone is when being provided with one-sided microphone near headphone unit place, side, de-noising signal generation unit 20 can detect that electric terminal is near the side headphone unit away from one-sided microphone of described earphone, generate the terminal de-noising signal for offsetting described ambient noise, (namely output control unit 30 can control the side headphone unit away from one-sided microphone of described earphone, the side headphone unit of the close electric terminal of described earphone) export described terminal de-noising signal.Here, de-noising signal generation unit 20 by various mode detected electrons terminal whether near the side headphone unit away from one-sided microphone of described earphone.Such as, the ambient noise that can collect according to the microphone of electric terminal and being determined by the correlation between the signal that exports away from the side headphone unit of one-sided microphone, if both correlations are high, then can determine the side headphone unit away from one-sided microphone of electric terminal near described earphone.
Correspondingly, exemplarily, the one-sided microphone collection ambient noise that control unit also can control described earphone is gathered; De-noising signal generation unit 20 also can generate the de-noising signal for offsetting the ambient noise gathered by the one-sided microphone of described earphone; The side headphone unit that output control unit 30 also can control the close one-sided microphone of described earphone exports this de-noising signal, thus realization reduces the ambient noise that user eavesdrops at ears, and realize the noise reduction of corresponding ear side due to the ambient noise respectively based on each ear side, improve noise reduction.
Exemplarily, de-noising signal generation unit 20 can detect that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, ambient noise based on described ambient noise and one-sided microphone collection generates the terminal de-noising signal for offsetting the ambient noise near the headphone unit of described side, and the side headphone unit that output control unit 30 can control the close one-sided microphone of described earphone exports this de-noising signal.That is, the ambient noise that the ambient noise collected based on the microphone of electric terminal and the microphone of earphone collect generates terminal de-noising signal, thus improves noise reduction.
Correspondingly, exemplarily, de-noising signal generation unit 20 also can detect that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, based on the offside de-noising signal of the ambient noise near the opposite side headphone unit that the ambient noise of described ambient noise and one-sided microphone collection generates for offsetting described earphone; Output control unit 30 can control described opposite side headphone unit and export described offside de-noising signal.Namely, generating the terminal de-noising signal of the ambient noise near the side ear for offsetting the close user of electric terminal and while being exported to user by the headphone unit of this side, also generate the offside de-noising signal of the ambient noise near the opposite side ear for offsetting user and exported to user by opposite side headphone unit, thus realization reduces the ambient noise that user eavesdrops at ears.
In addition, exemplarily, at described earphone, there is left ear unit and auris dextra unit, and when being provided with one-sided microphone near headphone unit place, side, de-noising signal generation unit 20 can when detecting that electric terminal does not have the ear of close user, based on the offside de-noising signal of ambient noise generation for offsetting the ambient noise near away from the side headphone unit of one-sided microphone that one-sided microphone gathers, output control unit 30 can control described side headphone unit and export described offside de-noising signal.Correspondingly, also can generate the de-noising signal for offsetting the ambient noise gathered by one-sided microphone and export this de-noising signal by the side headphone unit of the close one-sided microphone of described earphone, thus realization reduces the ambient noise that user eavesdrops at ears.
Take described earphone as the earphone with one-sided headphone unit, gather control unit and can detect that electric terminal is near the ear of user, control noises collecting unit 10 gathers ambient noise, de-noising signal generation unit 20 generates the terminal de-noising signal for offsetting described ambient noise, and the receiver that output control unit 30 can control electric terminal exports described terminal de-noising signal.Particularly, user wears single head-receiver on the ear of side, if user needs to carry out noise reduction, can by the side ear of electric terminal near non-wear headphones, thus collection control unit is detecting that electric terminal is near the ear of user, control noises collecting unit 10 gathers ambient noise, generate for offset this to pick up the ears piece near ambient noise terminal de-noising signal and exported by the receiver of electric terminal, to reduce the ambient noise that user eavesdrops at this ear.
Further, exemplarily, when described earphone has one-sided headphone unit and does not have microphone, the offside de-noising signal of the ambient noise near the one-sided headphone unit that de-noising signal generation unit 20 also can generate for offsetting described earphone based on described ambient noise, the one-sided headphone unit that output control unit 30 also can control described earphone exports described offside de-noising signal.Namely, generating the terminal de-noising signal of the ambient noise near the side ear for offsetting the close user of electric terminal and while being exported to user by the receiver of electric terminal, also generate the offside de-noising signal of the ambient noise near the opposite side ear for offsetting user and exported to user by opposite side headphone unit, thus user is when wearing single head-receiver, the ambient noise that user eavesdrops at ears still can be reduced.
As another example, when described earphone has one-sided headphone unit and has microphone, gather the microphone collection ambient noise that control unit also can control described earphone; De-noising signal generation unit 20 also can generate the de-noising signal for offsetting the ambient noise gathered by the microphone of described earphone; The one-sided headphone unit that output control unit 30 also can control described earphone exports this de-noising signal.Thus user is when wearing single head-receiver, the ambient noise that user eavesdrops at ears still can be reduced.
As another example, described single head-receiver has active noise reduction function (such as, active noise reduction bluetooth earphone), thus user can be realized when wearing single head-receiver according to exemplary embodiment of the present invention, still can reduce the ambient noise that user eavesdrops at ears.
Should be appreciated that, said units also can be implemented as the unit realized in electric terminal according to an exemplary embodiment of the present invention in the device of noise reduction, does not repeat them here.
In electric terminal, realize method and the electric terminal thereof of noise reduction according to an exemplary embodiment of the present invention, the ambient noise that can gather based on the microphone of electric terminal realizes noise reduction.
Although show and described exemplary embodiments more of the present invention, but those skilled in the art should understand that, when not departing from by the principle of the present invention of claim and its scope of equivalents thereof and spirit, can modify to these embodiments.
Claims (11)
1. in electric terminal, realize a method for noise reduction, wherein, electric terminal is connected with earphone, and described method comprises:
Ambient noise is gathered by the microphone of electric terminal;
Generate the terminal de-noising signal for offsetting described ambient noise;
Type according to described earphone exports described terminal de-noising signal by electric terminal and/or described earphone.
2. method according to claim 1, wherein,
Detecting that electric terminal is near the ear of user, gathering ambient noise by the microphone of electric terminal,
Wherein, described terminal de-noising signal is exported according to the type of described earphone by the side headphone unit of the close electric terminal of electric terminal and/or described earphone.
3. method according to claim 2, wherein, described earphone has left ear unit and auris dextra unit, wherein,
Described terminal de-noising signal is exported by the side headphone unit of the close electric terminal of described earphone.
4. method according to claim 3, wherein, described earphone does not have microphone, and described method also comprises:
Based on the offside de-noising signal of the ambient noise near the opposite side headphone unit that described ambient noise generates for offsetting described earphone;
Described offside de-noising signal is exported by described opposite side headphone unit.
5. method according to claim 3, wherein, described earphone is being provided with one-sided microphone near headphone unit place, side, wherein,
Detecting that electric terminal is near the side headphone unit away from one-sided microphone of described earphone, generates the terminal de-noising signal for offsetting described ambient noise.
6. method according to claim 5, also comprises:
Detecting that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, the ambient noise based on described ambient noise and one-sided microphone collection generates the terminal de-noising signal for offsetting the ambient noise near the headphone unit of described side.
7. method according to claim 6, also comprises:
Detecting that electric terminal is near the side headphone unit of the close one-sided microphone of described earphone, based on the offside de-noising signal of the ambient noise near the opposite side headphone unit that the ambient noise of described ambient noise and one-sided microphone collection generates for offsetting described earphone;
Described offside de-noising signal is exported by described opposite side headphone unit.
8. method according to claim 1, wherein, described earphone has left ear unit and auris dextra unit, and is being provided with one-sided microphone near headphone unit place, side, and described method also comprises:
When detecting that electric terminal does not have the ear of close user, based on the offside de-noising signal of ambient noise generation for offsetting the ambient noise near away from the side headphone unit of one-sided microphone that one-sided microphone gathers,
Wherein, described offside de-noising signal is exported by described side headphone unit.
9. method according to claim 2, wherein, described earphone has one-sided headphone unit, wherein, exports described terminal de-noising signal by the receiver of electric terminal.
10. method according to claim 9, wherein, described earphone does not have microphone, and described method also comprises:
Based on the offside de-noising signal of the ambient noise near the one-sided headphone unit that described ambient noise generates for offsetting described earphone;
Described offside de-noising signal is exported by the one-sided headphone unit of described earphone.
11. 1 kinds of electric terminals realizing noise reduction, wherein, electric terminal is connected with earphone, and described electric terminal comprises:
Noise Acquisition unit, gathers ambient noise;
De-noising signal generation unit, generates the terminal de-noising signal for offsetting described ambient noise;
Output control unit, exports described terminal de-noising signal according to the Type Control electric terminal of described earphone and/or described earphone.
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