CN106453760A

CN106453760A - Method for improving environmental noise and terminal

Info

Publication number: CN106453760A
Application number: CN201610890634.8A
Authority: CN
Inventors: 李劲松
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2016-10-11
Filing date: 2016-10-11
Publication date: 2017-02-22

Abstract

The embodiment of the invention discloses a method for improving environmental noise and a terminal. The method comprises the following steps: the terminal obtains an environmental voltage signal according to preset environmental detection parameters, the terminal receives a noise identification instruction and obtains a noise identification mode from the noise identification instruction, the terminal obtains a reversed polarity signal corresponding to the environmental voltage signal according to the noise identification mode, the terminal generates a noise cancellation signal according to the relationship between a sum of amplitudes of the environmental voltage signal and the reversed polarity signal and a preset amplitude range, and the terminal sends the generated noise cancellation signal. The problem of environmental noise in a communication process of the terminal is solved, and the call quality and the user experience are improved.

Description

A kind of method improving ambient noise and terminal

Technical field

The present invention relates to field of wireless communication, more particularly, to a kind of method improving ambient noise and terminal.

Background technology

With the universalness of intelligent handhold communication equipment, the quantity of user gets more and more.During user uses, lead to Often can run under the more use environment of external sound interference source, being disturbed by external sound is affected thus affecting user's communication Quality and experience.

For above demand it is common practice to use In-Ear Headphones or noise-eliminating earphone.This will need user to increase One peripheral hardware, and because the sound in whole environment can be curbed by earphone de-noising, there is personal security's hidden danger.

Content of the invention

Present invention is primarily targeted at proposing a kind of method improving ambient noise and terminal it is intended to solve terminal called Ambient noise problem present in process, lifting speech quality and Consumer's Experience.

For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：

In a first aspect, embodiments providing a kind of method improving ambient noise, methods described includes：

Described terminal is according to default environment measuring parameter acquiring ambient voltage signal；

Described terminal receives Noise Identification instruction, and obtains Noise Identification mode from the instruction of described Noise Identification；

Described terminal obtains the corresponding polarity reversing signal of described ambient voltage signal according to described Noise Identification mode；

Described terminal according to the amplitude sum of described ambient voltage signal and polarity reversing signal and default amplitude range it Between relation generate noise cancellation signal；

The noise cancellation signal of generation is launched by described terminal.

In such scheme, institute's terminal obtains the corresponding antipole of described ambient voltage signal according to described Noise Identification mode Property signal, specifically includes：

When Noise Identification mode is suppression noisy mode, described terminal passes through described ambient voltage signal and the base prestoring Quasi-noise source obtains corresponding first polarity reversing signal of described ambient voltage signal；

When Noise Identification mode is suppression ambient sound mode, described terminal passes through described ambient voltage signal acquisition institute State corresponding second polarity reversing signal of ambient voltage signal.

Further, when Noise Identification mode is suppression noisy mode, described terminal passes through described ambient voltage signal Obtain corresponding first polarity reversing signal of described ambient voltage signal with the reference noise source prestoring, specifically include：

When Noise Identification mode is suppression noisy mode, described terminal passes through described ambient voltage signal and the base prestoring Quasi-noise source carries out signal contrast, distinguishes the noise in ambient voltage signal；Wherein, the described reference noise source prestoring according to Described default environment measuring parameter acquiring；

Described terminal-pair ambient voltage signal carries out detection process, obtains the first voice signal；Wherein, described first sound Signal refers specifically to described ambient voltage signal and carries out, with the reference noise source prestoring, the noise signal distinguished after signal contrast；

First voice signal described in described terminal-pair carries out region filtering, obtains the first noise signal；

First noise signal described in described terminal-pair carries out power amplification, obtains the first noise and amplifies signal；

Described in described terminal-pair, the first noise amplifies signal and carries out reversed polarity process, obtains the first polarity reversing signal.

Further, when Noise Identification mode is suppression ambient sound mode, described terminal passes through described ambient voltage Corresponding second polarity reversing signal of ambient voltage signal described in signal acquisition, specifically includes：

When Noise Identification mode be suppression ambient sound mode when, described terminal will give tacit consent to described ambient voltage signal not with The reference noise source prestoring carries out signal contrast；

Described terminal-pair ambient voltage signal carries out detection process, obtains second sound signal；Described second sound signal Refer specifically to ambient voltage signal；

Second sound signal described in described terminal-pair carries out region filtering, obtains the second noise signal；

Second noise signal described in described terminal-pair carries out power amplification, obtains the second noise and amplifies signal；

Described in described terminal-pair, the second noise amplifies signal and carries out reversed polarity process, obtains the second polarity reversing signal.

In such scheme, described terminal according to the amplitude sum of described ambient voltage signal and polarity reversing signal with default Amplitude range between relation generate noise cancellation signal, specifically include：

When Noise Identification mode is suppression noisy mode, described terminal is according to described ambient voltage signal and the first antipole When the amplitude sum of property signal is in default amplitude range, described terminal is by the amplitude of described first polarity reversing signal, phase place Be converted to amplitude with described first noise signal, the first noise cancellation signal of opposite in phase；

Described terminal is according to the amplitude sum of described ambient voltage signal and opposite polarity noise signal in default amplitude model When enclosing outer, the amplitude of the first polarity reversing signal described in described terminal-pair carries out feedback compensation, obtains noise compensation signal, described end End by the amplitude of described noise compensation signal, phase transition be with the amplitude of described first noise signal, opposite in phase first Noise cancellation signal；

When Noise Identification mode is suppression ambient sound mode, described terminal is by the width of described second polarity reversing signal Value, phase transition are amplitude with described second noise signal, the second noise cancellation signal of opposite in phase.

Second aspect, embodiments provides a kind of terminal improving ambient noise, and described terminal includes：Sound passes Sense module, noise instruction module, noise determination module, voltage comparison module and acoustic emission module, wherein,

Described sound sensor module, for according to default environment measuring parameter acquiring ambient voltage signal；

Described noise instruction module, for receiving Noise Identification instruction, and obtains noise from the instruction of described Noise Identification RM；

Described noise determination module, corresponding anti-for described ambient voltage signal is obtained according to described Noise Identification mode Polar signal；

Described voltage comparison module, for the amplitude sum according to described ambient voltage signal and polarity reversing signal with default Amplitude range between relation generate noise cancellation signal；

Described acoustic emission module, for being launched the noise cancellation signal of generation.

In such scheme, described noise determination module includes：First decision sub-module and the second decision sub-module, its In,

Described first decision sub-module, for when Noise Identification mode is suppression noisy mode, by described environment electricity Pressure signal obtains corresponding first polarity reversing signal of described ambient voltage signal with the reference noise source prestoring；

Described second decision sub-module, for when Noise Identification mode is suppression ambient sound mode, by described ring Border voltage signal obtains corresponding second polarity reversing signal of described ambient voltage signal.

Further, described first decision sub-module, specifically for,

When Noise Identification mode is suppression noisy mode, by described ambient voltage signal and the reference noise source prestoring Carry out signal contrast, distinguish the noise in ambient voltage signal；Wherein, the described reference noise source prestoring is according to described default Environment measuring parameter acquiring；

And, ambient voltage signal is carried out with detection process, obtains the first voice signal；Wherein, described first sound letter Number refer specifically to described ambient voltage signal and carry out, with the reference noise source prestoring, the noise signal distinguished after signal contrast；

And, described first voice signal is carried out with region filtering, obtains the first noise signal；

And, described first noise signal is carried out with power amplification, obtains the first noise and amplify signal；

And, signal is amplified to described first noise and carries out reversed polarity process, obtain the first polarity reversing signal.

Further, described second decision sub-module, specifically for,

When Noise Identification mode be suppression ambient sound mode when, by give tacit consent to described ambient voltage signal not with the base prestoring Quasi-noise source carries out signal contrast；

And, ambient voltage signal is carried out with detection process, obtains second sound signal；Described second sound signal is concrete Finger ring border voltage signal；

And, described second sound signal is carried out with region filtering, obtains the second noise signal；

And, described second noise signal is carried out with power amplification, obtains the second noise and amplify signal；

And, signal is amplified to described second noise and carries out reversed polarity process, obtain the second polarity reversing signal.

In such scheme, described voltage comparison module includes：Signal generation submodule and signal feedback compensation submodule, Wherein,

For described voltage comparison module, when Noise Identification mode is suppression noisy mode,

Described signal generation submodule, the amplitude sum according to described ambient voltage signal and the first polarity reversing signal is pre- If amplitude range in when, the amplitude of described first polarity reversing signal, phase transition are the width with described first noise signal Value, the first noise cancellation signal of opposite in phase；

Described signal feedback compensation submodule, according to the amplitude sum of described ambient voltage signal and opposite polarity noise signal When outside default amplitude range, feedback compensation is carried out to the amplitude of described first polarity reversing signal, obtains noise compensation signal, The amplitude of described noise compensation signal, phase transition are to make an uproar with the amplitude of described first noise signal, the first of opposite in phase Sound offseting signal；

And, for described voltage comparison module, when Noise Identification mode is suppression ambient sound mode,

Described signal generation submodule, be additionally operable to by the amplitude of described second polarity reversing signal, phase transition be with described The amplitude of the second noise signal, the second noise cancellation signal of opposite in phase.

A kind of method of improvement ambient noise and terminal that the embodiment of the present invention is provided, described terminal is according to default ring Parameter acquiring ambient voltage signal is detected in border, and described terminal receives Noise Identification instruction, and obtains from the instruction of described Noise Identification Take Noise Identification mode, described terminal obtains described ambient voltage signal corresponding reversed polarity letter according to described Noise Identification mode Number, described terminal is according to the pass between the amplitude sum of described ambient voltage signal and polarity reversing signal and default amplitude range System generates noise cancellation signal, and the noise cancellation signal of generation is launched by described terminal, deposits during solving terminal called Ambient noise problem, lifting speech quality and Consumer's Experience.

Brief description

Fig. 1 is a kind of hardware architecture diagram of mobile terminal provided in an embodiment of the present invention；

Fig. 2 is the communication system architecture schematic diagram that mobile terminal provided in an embodiment of the present invention is operable to；

Fig. 3 is the schematic diagram of a kind of terminal improving ambient noise provided in an embodiment of the present invention and environmental interaction；

Fig. 4 is a kind of method flow diagram improving ambient noise provided in an embodiment of the present invention；

Fig. 5 is a kind of method flow diagram obtaining polarity reversing signal provided in an embodiment of the present invention；

Fig. 6 is a kind of method detailed flow chart improving ambient noise provided in an embodiment of the present invention；

Fig. 7 is a kind of ambient sound provided in an embodiment of the present invention and the distance between terminal relation schematic diagram；

Fig. 8 is the schematic diagram that a kind of terminal provided in an embodiment of the present invention opens Noise Identification function；

Fig. 9 is the schematic diagram that a kind of terminal provided in an embodiment of the present invention opens suppression noisy mode；

Figure 10 is the schematic diagram that a kind of terminal provided in an embodiment of the present invention opens suppression ambient sound mode；

Figure 11 is a kind of apparatus structure block diagram improving ambient noise provided in an embodiment of the present invention；

Figure 12 is a kind of composition frame chart of noise determination module provided in an embodiment of the present invention；

Figure 13 is a kind of composition frame chart of voltage comparison module provided in an embodiment of the present invention.

Specific 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.

The mobile terminal realizing each embodiment of the present invention to be described referring now to accompanying drawing 1.In follow-up description, make With being used for the suffix of such as " module ", " part " or " unit " that represent element only for being conducive to the explanation of the present invention, its Body does not have specific meaning.Therefore, " module " and " part " can mixedly use.

Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving Phone, smart phone, notebook computer, digit broadcasting receiver, personal digital assistant (PDA), panel computer (PAD), portable The fixation of the mobile terminal of formula multimedia player (PMP), guider etc. and such as digital TV, desktop computer etc. Terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for mobile mesh Element outside, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.

Fig. 1 is that the hardware configuration of the mobile terminal realizing each embodiment of the present invention is illustrated.

Mobile terminal 1 00 can include wireless communication unit 110, audio/video (A/V) input block 120, user input Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power subsystem 190 Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups illustrating Part, can alternatively implement more or less of assembly, will be discussed in more detail below the element of mobile terminal.

Wireless communication unit 110 generally includes one or more assemblies, and it allows mobile terminal 1 00 and wireless communication system Or the radio communication between network.For example, wireless communication unit can include broadcasting reception module 111, mobile communication module 112nd, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.

Broadcasting reception module 111 receives broadcast singal and/or broadcast via broadcast channel from external broadcast management server Relevant information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can be generated and sent The broadcast singal generating before the server of broadcast singal and/or broadcast related information or reception and/or broadcast related information And send it to the server of terminal.Broadcast singal can include TV broadcast singal, radio signals, data broadcasting Signal etc..And, broadcast singal may further include the broadcast singal combining with TV or radio signals.Broadcast phase Pass information can also provide via mobile communications network, and in this case, broadcast related information can be by mobile communication mould Block 112 is receiving.Broadcast singal can exist in a variety of manners, and for example, it can be with the electronics of DMB (DMB) The form of program guide (EPG), the electronic service guidebooks (ESG) of digital video broadcast-handheld (DVB-H) etc. and exist.Broadcast Receiver module 111 can be broadcasted by using various types of broadcast system receipt signals.Especially, broadcasting reception module 111 Can be wide by using such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), digital video Broadcast-hand-held (DVB-H), the Radio Data System of forward link media (MediaFLO@), received terrestrial digital broadcasting integrated service Etc. (ISDB-T) digit broadcasting system receives digital broadcasting.Broadcasting reception module 111 may be constructed such that and is adapted to provide for extensively Broadcast the various broadcast systems of signal and above-mentioned digit broadcasting system.Via broadcasting reception module 111 receive broadcast singal and/ Or broadcast related information can be stored in memory 160 (or other types of storage medium).

Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal And at least one of server and/or receive from it radio signal.Such radio signal can include voice and lead to Words signal, video calling signal or the various types of data sending and/or receiving according to text and/or Multimedia Message.

Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.This module can be internally or externally It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by this module can include WLAN (WLAN) (Wi-Fi), Wibro (WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..

Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology include indigo plant Tooth TM, RF identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybee TM etc..

Location information module 115 be for check or obtain mobile terminal positional information module.Location information module 115 typical case is GPS (global positioning system).According to current technology, location information module 115 calculate from three or The range information of more satellites and correct time information and the Information application triangulation for calculating, thus according to warp Degree, latitude and highly accurately calculate three-dimensional current location information.Currently, the method for calculating position and temporal information uses Three satellites and the error of the position that calculates by using other satellite correction and temporal information.Additionally, position Information module 115 can be by Continuous plus current location information in real time come calculating speed information.

A/V input block 120 is used for receiving audio or video signal.A/V input block 120 can include camera 121 He Microphone 122, camera 121 is to the static images being obtained by image capture apparatus in Video Capture pattern or image capture mode Or the view data of video is processed.Picture frame after process may be displayed on display unit 151.Process through camera 121 Picture frame afterwards can be stored in memory 160 (or other storage medium) or carry out sending out via wireless communication unit 110 Send, two or more cameras 121 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone calling model, note Sound (voice data) is received via microphone 122 in record pattern, speech recognition mode etc. operational mode, and can be by this The acoustic processing of sample is voice data.Audio frequency (voice) data after process can be converted in the case of telephone calling model The form output of mobile communication base station can be sent to via mobile communication module 112.Microphone 122 can be implemented various types of Noise eliminate (or suppression) algorithm with eliminate (or suppression) receive and the noise that produces during sending audio signal or Interference.

User input unit 130 can generate key input data to control each of mobile terminal according to the order of user input Plant operation.User input unit 130 allows the various types of information of user input, and can include keyboard, metal dome, touch Plate (for example, detection due to touched and lead to resistance, pressure, the change of electric capacity etc. sensitive component), roller, rocking bar etc. Deng.Especially, when touch pad is superimposed upon on display unit 151 as a layer, touch-screen can be formed.

Sensing unit 140 detect mobile terminal 1 00 current state, (for example, mobile terminal 1 00 open or close shape State), the position of mobile terminal 1 00, user is for the presence or absence of the contact (that is, touch input) of mobile terminal 1 00, mobile terminal 100 orientation, the acceleration or deceleration movement of mobile terminal 1 00 and direction etc., and generate for controlling mobile terminal 1 00 The order of operation or signal.For example, when mobile terminal 1 00 is embodied as sliding-type mobile phone, sensing unit 140 can sense This sliding-type phone opens or cuts out.In addition, sensing unit 140 can detect power subsystem 190 whether provide electric power or Whether person's interface unit 170 is coupled with external device (ED).Sensing unit 140 can include proximity transducer 141 and will combine below Touch-screen this is described.

Interface unit 170 is connected, with mobile terminal 1 00, the interface that can pass through as at least one external device (ED).For example, External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing Line FPDP, memory card port, the port of device for connection with identification module, audio input/output (I/O) end Mouth, video i/o port, ear port etc..Identification module can be storage for verifying that user uses each of mobile terminal 1 00 Kind of information and subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) can be included Etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can take the form of smart card, therefore, know Other device can be connected with mobile terminal 1 00 via port or other attachment means.Interface unit 170 can be used for reception and is derived from The input (for example, data message, electric power etc.) of the external device (ED) and input receiving is transferred in mobile terminal 1 00 One or more elements or can be used for transmission data between mobile terminal and external device (ED).

In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing by it by electricity Power provides the path of mobile terminal 1 00 from base or can serve as allowing the various command signals from base input to pass through it It is transferred to the path of mobile terminal.May serve as identifying that mobile terminal is from the various command signals of base input or electric power The no signal being accurately fitted within base.Output unit 150 is configured to defeated with the offer of vision, audio frequency and/or tactile manner Go out signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.).Output unit 150 can include showing Unit 151, dio Output Modules 152, alarm unit 153 etc..

Display unit 151 may be displayed on the information processing in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity During words call mode, display unit 151 can show (for example, text messaging, the multimedia file that communicate with call or other Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern Or during image capture mode, display unit 151 can show the image of capture and/or the image of reception, illustrate video or figure UI or GUI of picture and correlation function etc..

Meanwhile, when display unit 151 and the touch pad touch-screen with formation superposed on one another as a layer, display unit 151 can serve as input unit and output device.Display unit 151 can include liquid crystal display (LCD), thin film transistor (TFT) In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least A kind of.Some in these displays may be constructed such that transparence to allow user from outside viewing, and this is properly termed as transparent Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific The embodiment wanted, mobile terminal 1 00 can include two or more display units (or other display device), for example, moves Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch-screen can be used for detection and touches Input pressure and touch input position and touch input area.

Dio Output Modules 152 can mobile terminal be in call signal reception pattern, call mode, logging mode, When under the isotypes such as speech recognition mode, broadcast reception mode, that wireless communication unit 110 is received or in memory 160 The voice data transducing audio signal of middle storage and be output as sound.And, dio Output Modules 152 can provide and move The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation of terminal 100 execution. Dio Output Modules 152 can include loudspeaker, buzzer etc..

Alarm unit 153 can provide output to notify event to mobile terminal 1 00.Typical event is permissible Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video output, alarm unit 153 can provide output in a different manner with the generation of notification event.For example, alarm unit 153 can be in the form of vibrating Output is provided, enters when communicating (Incoming Communication) when receiving calling, message or some other, alarm list Unit 153 can provide tactile output (for example, vibrating) to notify to user.By providing such tactile output, even if When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153 The output of the generation of notification event can also be provided via display unit 151 or dio Output Modules 152.

Memory 160 can store software program of the process being executed by controller 180 and control operation etc., or can Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And And, memory 160 can be to store the vibration of various modes with regard to exporting and audio signal when touching and being applied to touch-screen Data.

Memory 160 can include the storage medium of at least one type, and described storage medium includes flash memory, hard disk, many Media card, card-type memory (for example, SD or DX memory etc.), random access storage device (RAM), static random-access storage Device (SRAM), read-only storage (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory (PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can execute memory with by network connection The network storage device cooperation of 160 store function.

Controller 180 generally controls the overall operation of mobile terminal.For example, controller 180 execution and voice call, data The related control of communication, video calling etc. and process.In addition, controller 180 can be included for reproducing (or playback) many matchmakers The multi-media module 181 of volume data, multi-media module 181 can construct in controller 180, or it is so structured that and controls Device 180 separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input executing on the touchscreen or picture Draw input and be identified as character or image.

Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit Suitable electric power needed for part and assembly.

Various embodiment described herein can be with using such as computer software, hardware or its any combination of calculating Machine computer-readable recording medium is implementing.Hardware is implemented, embodiment described herein can be by using application-specific IC (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can Program gate array (FPGA), processor, controller, microcontroller, microprocessor, be designed to execute function described herein At least one in electronic unit implementing, in some cases, can be implemented in controller 180 by such embodiment. Software is implemented, the embodiment of such as process or function can with allow to execute the single of at least one function or operation Software module is implementing.Software code can be come by the software application (or program) write with any suitable programming language Implement, software code can be stored in memory 160 and be executed by controller 180.

So far, oneself is through describing mobile terminal according to its function.Below, for the sake of brevity, will describe such as folded form, Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc. is as showing Example.Therefore, the present invention can be applied to any kind of mobile terminal, and is not limited to slide type mobile terminal.

As shown in Figure 1 mobile terminal 1 00 may be constructed such that using via frame or packet transmission data all if any Line and wireless communication system and satellite-based communication system are operating.

The communication system being wherein operable to according to the mobile terminal of the present invention referring now to Fig. 2 description.

Such communication system can use different air interfaces and/or physical layer.For example, used by communication system Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system System (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under The description in face is related to cdma communication system, but such teaching is equally applicable to other types of system.

With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 1s 00, multiple base station (BS) 270, base station Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN) 290 formation interfaces.MSC280 is also structured to and can form interface via the BSC275 that back haul link is couple to base station 270. If back haul link can construct according to any one in the interface that Ganji knows, described interface includes such as E1/T1, ATM, IP, PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system as shown in Figure 2 can include multiple BSC2750.

Each BS270 can service one or more subregions (or region), by the sky of multidirectional antenna or sensing specific direction Each subregion that line covers is radially away from BS270.Or, each subregion can by for diversity reception two or more Antenna covers.Each BS270 may be constructed such that support multiple frequency distribution, and the distribution of each frequency has specific frequency spectrum (for example, 1.25MHz, 5MHz etc.).

Intersecting that subregion and frequency are distributed can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly representing single BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Or, each subregion of specific BS270 can be claimed For multiple cellular stations.

As shown in Figure 2, broadcast singal is sent to the mobile terminal of operation in system by broadcsting transmitter (BT) 295 100.Broadcasting reception module 111 is arranged at mobile terminal 1 00 to receive the broadcast being sent by BT295 as shown in Figure 1 Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.Satellite 300 helps position multiple mobile terminals At least one of 100.

In fig. 2, depict multiple satellites 300, it is understood that be, it is possible to use any number of satellite obtains useful Location information.GPS module 115 is generally configured to coordinate with satellite 300 to obtain the positioning letter wanted as shown in Figure 1 Breath.Substitute GPS tracking technique or outside GPS tracking technique, it is possible to use other of the position of mobile terminal can be followed the tracks of Technology.In addition, at least one gps satellite 300 can optionally or additionally process satellite dmb transmission.

As a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminal 1s 00 Signal.Mobile terminal 1 00 generally participates in call, information receiving and transmitting and other types of communication.Each of certain base station 270 reception is anti- Processed in specific BS270 to link signal.The data obtaining is forwarded to the BSC275 of correlation.BSC provides call Resource allocation and the mobile management function of including the coordination of soft switching process between BS270.BSC275 is also by the number receiving According to being routed to MSC280, it provides the extra route service for forming interface with PSTN290.Similarly, PSTN290 with MSC280 forms interface, and MSC and BSC275 form interface, and BSC275 correspondingly controls BS270 with by forward link signals It is sent to mobile terminal 1 00.

Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the inventive method is proposed.

Referring to Fig. 3, it illustrates a kind of terminal 20 and environment 10 improving ambient noise provided in an embodiment of the present invention it Between interaction schematic diagram it is possible to understand that, this schematic diagram is merely to illustrate the technical scheme of the embodiment of the present invention, not to this Bright embodiment carries out any concrete restriction.

Based on above-mentioned schematic diagram, the basic thought of the embodiment of the present invention is：Described terminal is joined according to default environment measuring Number obtains ambient voltage signal, and described terminal obtains described environment according to described ambient voltage signal with the reference noise source prestoring Noise signal in voltage signal, described terminal obtains described noise signal corresponding opposite polarity noise signal, described terminal root Generate according to the relation between the amplitude sum of described ambient voltage signal and opposite polarity noise signal and default amplitude thresholds and make an uproar Sound offseting signal, finally described terminal the noise cancellation signal of generation is launched to offset the noise in environment, solve eventually Ambient noise problem present in end communication process, lifting speech quality and Consumer's Experience.

Embodiment one

Referring to Fig. 4, it illustrates a kind of method flow diagram improving ambient noise provided in an embodiment of the present invention, described side Method is applied to terminal, and methods described includes：

S401：Described terminal is according to default environment measuring parameter acquiring ambient voltage signal；

S402：Described terminal receives Noise Identification instruction, and obtains Noise Identification mode from the instruction of described Noise Identification；

S403：Described terminal obtains described ambient voltage signal corresponding reversed polarity letter according to described Noise Identification mode Number；

S404：Described terminal is according to the amplitude sum of described ambient voltage signal and polarity reversing signal and default amplitude model Relation between enclosing generates noise cancellation signal；

S405：The noise cancellation signal of generation is launched by described terminal.

For step S401, described environment measuring parameter includes：Ambient sound is apart from the distance range of terminal, ambient sound The parameters such as frequency, the range of energy levels of ambient sound；

Further, described ambient voltage signal can include：Terminal with the distance between ambient sound in the range of institute The all voice signals that can receive.

For step S401, described terminal, according to default environment measuring parameter acquiring ambient voltage signal, specifically includes：

Described terminal is according to described default environment measuring parameter acquiring environmental voice information；

Described environmental sound signal is converted to ambient voltage signal by described terminal.

For step S402, described Noise Identification mode includes：Suppression noisy mode and suppression ambient sound mode.

For step S403, referring to Fig. 5, described terminal obtains described ambient voltage signal according to Noise Identification mode and corresponds to Polarity reversing signal, including：

S4031：When Noise Identification mode is suppression noisy mode, described terminal pass through described ambient voltage signal with pre- The reference noise source deposited obtains corresponding first polarity reversing signal of described ambient voltage signal；

S4032：When Noise Identification mode is suppression ambient sound mode, described terminal is according to described ambient voltage signal Obtain corresponding second polarity reversing signal.

During implementing, for step S4031 it is preferable that when Noise Identification mode be suppression noisy mode when, institute State that terminal passes through described ambient voltage signal and to obtain described ambient voltage signal corresponding first anti-the reference noise source that prestores Polar signal, specifically includes：

Described in described terminal-pair, the first noise amplifies signal and carries out reversed polarity process, obtains the first polarity reversing signal；Wherein, Described reversed polarity is processed it is preferable that described noise can be amplified the amplitude of signal, phase place is converted into inverse value.

During implementing, for step S4032 it is preferable that working as Noise Identification mode is suppression ambient sound side During formula, described terminal, by the corresponding reversed polarity of ambient voltage signal described in described ambient voltage signal acquisition, specifically includes：

For step S404, it should be noted that the amplitude of described ambient voltage signal and opposite polarity noise signal is same One moment obtained, and this ensure that the amplitude sum of described ambient voltage signal and opposite polarity noise signal is in described environment electricity Ask in the case of pressure signal and opposite polarity noise signal same-phase.

For step S404, described noise cancellation signal includes：First noise cancellation signal and the second noise cancellation signal；

For step S404, when Noise Identification mode is suppression noisy mode, described terminal is according to described ambient voltage Relation between the amplitude sum of signal and polarity reversing signal and default amplitude range generates noise cancellation signal, concrete bag Include：

Described terminal is according to the amplitude sum of described ambient voltage signal and the first polarity reversing signal in default amplitude model When enclosing interior, described terminal by the amplitude of described first polarity reversing signal, phase transition be with the amplitude of described first noise signal, First noise cancellation signal of opposite in phase；

For step S404, when Noise Identification mode is suppression ambient sound mode, described terminal is according to described environment Relation between the amplitude sum of voltage signal and polarity reversing signal and default amplitude range generates noise cancellation signal, specifically Including：

Described terminal is by width that the amplitude of described second polarity reversing signal, phase transition are with described second noise signal Value, the second noise cancellation signal of opposite in phase.

For step S405, when described terminal transmission the first noise cancellation signal, described first noise cancellation signal can To offset the first noise signal distinguished in ambient voltage signal, thus lifting speech quality and Consumer's Experience；

When described terminal transmission the second noise cancellation signal, described second noise cancellation signal will offset ambient voltage The second noise signal in signal, reaches the effect improving Tonghua environment.

A kind of method of improvement ambient noise that the present embodiment provides, described terminal obtains according to default environment measuring parameter Take ambient voltage signal, described terminal receives Noise Identification instruction, and obtain Noise Identification side from the instruction of described Noise Identification Formula, described terminal obtains the corresponding polarity reversing signal of described ambient voltage signal, described terminal according to described Noise Identification mode Relation between amplitude sum according to described ambient voltage signal and polarity reversing signal and default amplitude range generates noise Offseting signal, the noise cancellation signal of generation is launched by described terminal, solves environment present in terminal called process and makes an uproar Sound problem, lifting speech quality and Consumer's Experience.

Embodiment two

Referring to Fig. 6, it illustrates a kind of concrete grammar flow chart improving ambient noise provided in an embodiment of the present invention, institute Method of stating includes for improving the terminal of ambient noise, methods described：

S601：Described terminal is according to default environment measuring parameter acquiring ambient voltage signal；

S602：After described terminal receives Noise Identification instruction, and obtain Noise Identification side from the instruction of described Noise Identification Formula；Wherein, described Noise Identification mode includes：Suppression noisy mode and suppression ambient sound mode；When Noise Identification mode is During suppression noisy mode, go to step S603 to step S609；When Noise Identification mode is suppression ambient sound mode, go to Step S610 is to step S615；

S603：Described terminal carries out signal contrast by described ambient voltage signal with the reference noise source prestoring, and distinguishes Go out the noise in ambient voltage signal；Wherein, the described reference noise source prestoring is obtained according to described default environment measuring parameter Take；

S604：Described terminal-pair ambient voltage signal carries out detection process, obtains the first voice signal；Wherein, described One voice signal refers specifically to described ambient voltage signal and carries out, with the reference noise source prestoring, the noise distinguished after signal contrast Signal；

S605：First voice signal described in described terminal-pair carries out region filtering, obtains the first noise signal；

S606：First noise signal described in described terminal-pair carries out power amplification, obtains the first noise and amplifies signal；

S607：Described in described terminal-pair, the first noise amplifies signal and carries out reversed polarity process, obtains the first polarity reversing signal；

S608：Described terminal is according to the amplitude sum of described ambient voltage signal and the first polarity reversing signal in default width When in the range of value, the amplitude of described first polarity reversing signal, phase transition are and described first noise signal by described terminal Amplitude, the first noise cancellation signal of opposite in phase；

S609：Described terminal is according to the amplitude sum of described ambient voltage signal and opposite polarity noise signal in default width When outside value scope, the amplitude of the first polarity reversing signal described in described terminal-pair carries out feedback compensation, obtains noise compensation signal, institute Stating terminal by the amplitude of described noise compensation signal, phase transition is and the amplitude of described first noise signal, opposite in phase First noise cancellation signal；

S610：Described terminal does not carry out signal contrast with the reference noise source prestoring by giving tacit consent to described ambient voltage signal；

S611：Described terminal-pair ambient voltage signal carries out detection process, obtains second sound signal；Described second sound Signal refers specifically to ambient voltage signal；

S612：Second sound signal described in described terminal-pair carries out region filtering, obtains the second noise signal；

S613：Second noise signal described in described terminal-pair carries out power amplification, obtains the second noise and amplifies signal；

S614：Described in described terminal-pair, the second noise amplifies signal and carries out reversed polarity process, obtains the second polarity reversing signal；

S615：The amplitude of described second polarity reversing signal, phase transition be and described second noise signal by described terminal Amplitude, the second noise cancellation signal of opposite in phase；

S616：The noise cancellation signal of generation is launched by described terminal.

For step S601, described environment measuring parameter includes：Ambient sound is apart from the distance range of terminal, ambient sound The parameters such as frequency, the range of energy levels of ambient sound；

Such as, ambient sound apart from the distance range of terminal is：Institute in the range of 10 meters of terminal for the ambient sound is sound Message number, specifically, the distance relation of described terminal and ambient sound can be as described in Figure 7；

The audio frequency range that described ambient sound frequency can include described terminal reception is 20HZ-20KHZ；

Described ambient sound range of energy levels can include 0dB-25dB.

For step S601, described terminal, according to default environment measuring parameter acquiring ambient voltage signal, specifically includes：

For step S602, described Noise Identification instructs opens Noise Identification function for instruction terminal；

Preferably, described Noise Identification instruction can be shown by the display screen of described terminal, described Noise Identification Information can be specifically " whether to open Noise Identification function？", described Noise Identification information is particularly shown mode can be as Fig. 8 institute Show；

Further, described select Noise Identification mode can receive Noise Identification instruction after, by slide select Item key selects, when slip option keys are slided to the right, for opening corresponding Noise Identification mode, when slip option keys are slided to the left, For closing corresponding Noise Identification mode, specifically, Fig. 9 is to open suppression noisy mode, closes the signal of suppression environmental manner Figure, Figure 10 is to open suppression environmental manner, closes the schematic diagram of suppression noisy mode.

For step S603, described reference noise source as a kind of noise reference signal, the described reference noise source prestoring According to described default environment measuring parameter acquiring, such as reference noise source can be the sound that ambient sound energy level is more than 20dB Sound voltage signal, reference noise source can be the sound voltage signal that sound frequency is higher than 1500KHZ.

First voice signal of the refinement obtaining through region filtering for step S605, described first voice signal, will The first voice signal after described refinement is referred to as the first noise signal；

Further, the method for described region filtering specifically can using wavelet transformation, Hilbert algorithm, spline interpolation, Fast Fourier Transform (FFT), what the present invention paid close attention to is not the concrete form of region filtering, but the realizability of region filtering.

For step S607, described reversed polarity is processed it is preferable that described noise can amplify amplitude, the phase place of signal It is converted into inverse value.

For step S608, it should be noted that the amplitude of described ambient voltage signal and the first polarity reversing signal is same One moment obtained, and this ensure that the amplitude sum of described ambient voltage signal and the first polarity reversing signal is in described environment electricity Ask in the case of pressure signal and the first polarity reversing signal same-phase；

Further, described amplitude range is used for the width relatively between described ambient voltage signal and the first polarity reversing signal Value relation, described amplitude range can take the arbitrary value between -1.00 to 1.00.

For step S609, described feedback compensation, refer specifically to：Described in described terminal-pair, the first polarity reversing signal carries out amplitude Compensate, until described ambient voltage signal and carry out the first polarity reversing signal after amplitude compensation amplitude sum in default width In the range of value, described terminal obtains the first polarity reversing signal after amplitude compensation as noise compensation signal.

For step S612, described second sound signal obtains the first voice signal refining through region filtering, by institute State the second sound signal after refinement and be referred to as the second noise signal；

For step S616, described ambient noise signal includes：First noise cancellation signal and the second noise cancellation signal；

Further, when described terminal transmission the first noise cancellation signal, described first noise cancellation signal can support Disappear the first noise signal distinguished in ambient voltage signal, thus lifting speech quality and Consumer's Experience；

A kind of method of improvement ambient noise that the present embodiment provides, described terminal obtains according to default environment measuring parameter Take ambient voltage signal, after described terminal receives Noise Identification instruction, select Noise Identification mode, when Noise Identification mode is only During identification noisy mode, described terminal is passed through described ambient voltage signal and is obtained described ambient voltage with the reference noise source prestoring Corresponding first polarity reversing signal of signal, the amplitude sum according to described ambient voltage signal and the first polarity reversing signal with default Amplitude range between relation generate the first noise cancellation signal, when Noise Identification mode be suppression ambient sound mode when, Described terminal passes through corresponding second polarity reversing signal of ambient voltage signal described in described ambient voltage signal acquisition, described terminal By the amplitude of described second polarity reversing signal, phase transition be with the amplitude of described second noise signal, opposite in phase second Noise cancellation signal, the noise cancellation signal of generation is launched by described terminal, solves ring present in terminal called process Border noise problem, lifting speech quality and Consumer's Experience.

Embodiment three

Based on the identical technical scheme of above-described embodiment, referring to Figure 11, it illustrates provided in an embodiment of the present invention one Plant terminal 11 structured flowchart improving ambient noise, described terminal includes：Sound sensor module 1101, noise instruction module 1102nd, noise determination module 1103, voltage comparison module 1104 and acoustic emission module 1105, wherein,

Described sound sensor module 1101, for according to default environment measuring parameter acquiring ambient voltage signal；

Described noise instruction module 1102, for receiving Noise Identification instruction, and obtains from the instruction of described Noise Identification Noise Identification mode；

Described noise determination module 1103, corresponds to for obtaining described ambient voltage signal according to described Noise Identification mode Polarity reversing signal；

Described voltage comparison module 1104, for the amplitude sum according to described ambient voltage signal and polarity reversing signal with Relation between default amplitude range generates noise cancellation signal；

Described acoustic emission module 1105, for being launched the noise cancellation signal of generation.

For described sound sensor module 1101, described environment measuring parameter includes：Ambient sound is apart from the distance of terminal The parameters such as scope, ambient sound frequency, the range of energy levels of ambient sound；

Described sound sensor module 1101, specifically for,

According to described default environment measuring parameter acquiring environmental voice information；

Described environmental sound signal is converted to ambient voltage signal.

For described noise instruction module 1102, described Noise Identification mode includes：Suppression noisy mode and suppression environment Voice mode；

Described noise determination module 1103 includes：First decision sub-module 11031 and the second decision sub-module 11032, institute The structured flowchart stating noise determination module 1103 may refer to Figure 12, wherein,

Described first decision sub-module 11031, for when Noise Identification mode is suppression noisy mode, by described ring Border voltage signal obtains corresponding first polarity reversing signal of described ambient voltage signal with the reference noise source prestoring；

Described second decision sub-module 11032, for when Noise Identification mode is suppression ambient sound mode, according to institute State corresponding second polarity reversing signal of ambient voltage signal acquisition.

Preferably, described first decision sub-module 11031, specifically for,

Signal contrast is carried out with the reference noise source prestoring by described ambient voltage signal, distinguishes ambient voltage signal In noise；Wherein, the described reference noise source prestoring is according to described default environment measuring parameter acquiring；

And, signal is amplified to described first noise and carries out reversed polarity process, obtain the first polarity reversing signal；Wherein, institute State reversed polarity to process it is preferable that described noise can be amplified the amplitude of signal, phase place is converted into inverse value.

Preferably, described second decision sub-module 11032, specifically for,

Do not carry out signal contrast by giving tacit consent to described ambient voltage signal with the reference noise source prestoring；

For described voltage comparison module 1104, it should be noted that described ambient voltage signal and opposite polarity noise letter Number amplitude obtain in synchronization, this ensure that the amplitude sum of described ambient voltage signal and opposite polarity noise signal is Ask in the case of described ambient voltage signal and opposite polarity noise signal same-phase.

For described voltage comparison module 1104, described noise cancellation signal includes：First noise cancellation signal and second Noise cancellation signal；

Described voltage comparison module 1104 includes：Signal generation submodule 11041 and signal feedback compensation submodule 11042, wherein, the structured flowchart of described voltage comparison module 1104 may refer to Figure 13.

For described voltage comparison module 1104, when Noise Identification mode is suppression noisy mode,

Described signal generation submodule 11041, for the width according to described ambient voltage signal and the first polarity reversing signal When value sum is in default amplitude range, the amplitude of described first polarity reversing signal, phase transition are to make an uproar with described first The amplitude of acoustical signal, the first noise cancellation signal of opposite in phase；

Described signal feedback compensation submodule 11042, for according to described ambient voltage signal and opposite polarity noise signal Amplitude sum outside default amplitude range when, feedback compensation is carried out to the amplitude of described first polarity reversing signal, acquisition is made an uproar Sound thermal compensation signal, the amplitude of described noise compensation signal, phase transition are and the amplitude of described first noise signal, phase place phase The first anti-noise cancellation signal；

For described voltage comparison module 1104, when Noise Identification mode is suppression ambient sound mode,

Described signal generation submodule 11041, be additionally operable to by the amplitude of described second polarity reversing signal, phase transition be with The amplitude of described second noise signal, the second noise cancellation signal of opposite in phase.

It should be noted that for described acoustic emission module 1105, when described terminal transmission first noise cancellation signal When, described first noise cancellation signal can offset the first noise signal distinguished in ambient voltage signal, thus lifting is logical Words quality and Consumer's Experience；

A kind of terminal of improvement ambient noise that the present embodiment provides, described sound sensor module 1101, for according to pre- If environment measuring parameter acquiring ambient voltage signal, described noise instruction module 1102 is used for receiving Noise Identification instruction, and Obtain Noise Identification mode from the instruction of described Noise Identification, described noise determination module 1103 is used for according to described Noise Identification Mode obtains the corresponding polarity reversing signal of described ambient voltage signal,

Described voltage comparison module 1104 be used for according to the amplitude sum of described ambient voltage signal and polarity reversing signal with Relation between default amplitude range generates noise cancellation signal, and described acoustic emission module 1105 is used for the noise that will generate Offseting signal is launched, thus solving the problems, such as ambient noise present in terminal called process, lifts speech quality and user Experience.

It should be noted that herein, term " inclusion ", "comprising" or its any other variant are intended to non-row The comprising of his property, so that including a series of process of key elements, method, article or device not only include those key elements, and And also include other key elements of being not expressly set out, or also include intrinsic for this process, method, article or device institute Key element.In the absence of more restrictions, the key element being limited by sentence "including a ..." is it is not excluded that including being somebody's turn to do Also there is other identical element in the process of key element, method, article or device.

The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.

Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side Method can be realized by the mode of software plus necessary general hardware platform naturally it is also possible to pass through hardware, but in many cases The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words Go out partly can embodying in the form of software product of contribution, this computer software product is stored in a storage medium In (as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can be mobile phone, computer, clothes Business device, air-conditioner, or network equipment etc.) method described by execution each embodiment of the present invention.

These are only the preferred embodiments of the present invention, not thereby limit the present invention the scope of the claims, every using this Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims

1. a kind of method improving ambient noise is it is characterised in that methods described includes：

Described terminal is according between the amplitude sum of described ambient voltage signal and polarity reversing signal and default amplitude range Relation generates noise cancellation signal；

The noise cancellation signal of generation is launched by described terminal.

2. method according to claim 1 is it is characterised in that institute's terminal obtains described ring according to described Noise Identification mode The corresponding polarity reversing signal of border voltage signal, specifically includes：

When Noise Identification mode is suppression noisy mode, described terminal is made an uproar with the benchmark prestoring by described ambient voltage signal Sound source obtains corresponding first polarity reversing signal of described ambient voltage signal；

When Noise Identification mode is suppression ambient sound mode, described terminal passes through ring described in described ambient voltage signal acquisition Corresponding second polarity reversing signal of border voltage signal.

3. method according to claim 2 it is characterised in that when Noise Identification mode be suppression noisy mode when, described Terminal is passed through described ambient voltage signal and is obtained corresponding first antipole of described ambient voltage signal with the reference noise source prestoring Property signal, specifically includes：

When Noise Identification mode is suppression noisy mode, described terminal is made an uproar with the benchmark prestoring by described ambient voltage signal Sound source carries out signal contrast, distinguishes the noise in ambient voltage signal；Wherein, the described reference noise source prestoring is according to described Default environment measuring parameter acquiring；

Described terminal-pair ambient voltage signal carries out detection process, obtains the first voice signal；Wherein, described first voice signal Refer specifically to described ambient voltage signal and carry out, with the reference noise source prestoring, the noise signal distinguished after signal contrast；

4. method according to claim 2 it is characterised in that when Noise Identification mode be suppression ambient sound mode when, Described terminal passes through corresponding second polarity reversing signal of ambient voltage signal described in described ambient voltage signal acquisition, concrete bag Include：

When Noise Identification mode be suppression ambient sound mode when, described terminal by give tacit consent to described ambient voltage signal not with prestore Reference noise source carry out signal contrast；

Described terminal-pair ambient voltage signal carries out detection process, obtains second sound signal；Described second sound signal is concrete Finger ring border voltage signal；

5. method according to claim 1 is it is characterised in that described terminal is according to described ambient voltage signal and reversed polarity Relation between the amplitude sum of signal and default amplitude range generates noise cancellation signal, specifically includes：

When Noise Identification mode is suppression noisy mode, described terminal is believed according to described ambient voltage signal and the first reversed polarity Number amplitude sum in default amplitude range when, described terminal is by the amplitude of described first polarity reversing signal, phase transition It is amplitude with described first noise signal, the first noise cancellation signal of opposite in phase；

Described terminal is according to the amplitude sum of described ambient voltage signal and opposite polarity noise signal outside default amplitude range When, the amplitude of the first polarity reversing signal described in described terminal-pair carries out feedback compensation, obtains noise compensation signal, and described terminal will The amplitude of described noise compensation signal, phase transition are amplitude with described first noise signal, the first noise of opposite in phase Offseting signal；

When Noise Identification mode is suppression ambient sound mode, described terminal is by the amplitude of described second polarity reversing signal, phase Position is converted to amplitude with described second noise signal, the second noise cancellation signal of opposite in phase.

6. a kind of terminal improving ambient noise is it is characterised in that described terminal includes：Sound sensor module, noise instruction mould Block, noise determination module, voltage comparison module and acoustic emission module, wherein,

Described noise instruction module, for receiving Noise Identification instruction, and obtains Noise Identification from the instruction of described Noise Identification Mode；

Described noise determination module, for obtaining the corresponding reversed polarity of described ambient voltage signal according to described Noise Identification mode Signal；

Described voltage comparison module, for the amplitude sum according to described ambient voltage signal and polarity reversing signal and default width Relation between value scope generates noise cancellation signal；

7. terminal according to claim 6 is it is characterised in that described noise determination module includes：First decision sub-module With the second decision sub-module, wherein,

Described first decision sub-module, for when Noise Identification mode is suppression noisy mode, being believed by described ambient voltage Number obtain corresponding first polarity reversing signal of described ambient voltage signal with the reference noise source that prestores；

Described second decision sub-module, for when Noise Identification mode is suppression ambient sound mode, by described environment electricity Corresponding second polarity reversing signal of ambient voltage signal described in pressure signal acquisition.

8. terminal according to claim 7 is it is characterised in that described first decision sub-module, specifically for,

When Noise Identification mode is suppression noisy mode, carried out with the reference noise source prestoring by described ambient voltage signal Signal contrast, distinguishes the noise in ambient voltage signal；Wherein, the described reference noise source prestoring is according to described default ring Parameter acquiring is detected in border；

And, ambient voltage signal is carried out with detection process, obtains the first voice signal；Wherein, described first voice signal tool Body refers to described ambient voltage signal and carries out, with the reference noise source prestoring, the noise signal distinguished after signal contrast；

9. terminal according to claim 7 is it is characterised in that described second decision sub-module, specifically for,

When Noise Identification mode is suppression ambient sound mode, do not make an uproar giving tacit consent to described ambient voltage signal with the benchmark prestoring Sound source carries out signal contrast；

And, ambient voltage signal is carried out with detection process, obtains second sound signal；The concrete finger ring of described second sound signal Border voltage signal；

10. terminal according to claim 6 is it is characterised in that described voltage comparison module includes：Signal generation submodule With signal feedback compensation submodule, wherein,

Described signal generation submodule, the amplitude sum according to described ambient voltage signal and the first polarity reversing signal is default When in amplitude range, the amplitude of described first polarity reversing signal, phase transition are and the amplitude of described first noise signal, phase The first contrary noise cancellation signal of position；

Described signal feedback compensation submodule, the amplitude sum according to described ambient voltage signal and opposite polarity noise signal is pre- If amplitude range outside when, the amplitude of described first polarity reversing signal is carried out with feedback compensation, obtains noise compensation signal, by institute State the amplitude of noise compensation signal, phase transition is to support with the amplitude of described first noise signal, the first noise of opposite in phase Disappear signal；

Described signal generation submodule, be additionally operable to the amplitude of described second polarity reversing signal, phase transition are and described second The amplitude of noise signal, the second noise cancellation signal of opposite in phase.