CN106657621A - Sound signal adaptive adjustment device and sound signal adaptive adjustment method - Google Patents
Sound signal adaptive adjustment device and sound signal adaptive adjustment method Download PDFInfo
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- CN106657621A CN106657621A CN201611095734.8A CN201611095734A CN106657621A CN 106657621 A CN106657621 A CN 106657621A CN 201611095734 A CN201611095734 A CN 201611095734A CN 106657621 A CN106657621 A CN 106657621A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72442—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files
Abstract
The invention discloses a sound signal adaptive adjustment device and a sound signal adaptive adjustment method. A receiver arranged on a mobile terminal is used for sound loud speaking. The device comprises a control module and an output module, wherein the control module is used for adjusting the electric signal power of loud speaking sound signals inputted to the receiver to be first power when the distance between a mobile phone and a human ear is smaller than or equal to a first distance threshold and adjusting the cutoff frequency of a digital filter to a first cutoff frequency according to an inherent frequency response curve of the receiver, and/or adjusting the electric signal power of loud speaking sound signals inputted to the receiver to be second power when the distance between the mobile phone and the human ear is larger than or equal to a second distance threshold and adjusting the cutoff frequency of the digital filter to a second cutoff frequency according to an inherent frequency response curve of the receiver, the first power is smaller than the second power, and the first cutoff frequency is smaller than the second cutoff frequency; and the output module is used for outputting loud speaking sound signals according to the power and the frequency after adjustment.
Description
Technical field
The present invention relates to intelligent terminal technical field, espespecially a kind of voice signal self-adaptive regulating and method.
Background technology
Into after the intelligent terminal epoch, the function that mobile terminal is supported is more and more, and existing mobile terminal generally has
Boombox, boombox refers to that mobile terminal has built-in loudspeaker, and such user not only can pass through earphone jack
The sound that mobile terminal sends can also be listened to by boombox.Mobile terminal with boombox, can not
With external speaker, it is also possible to avoid long-time and wear the inconvenience that earphone is brought.And due to the restriction of size of mobile terminals, lead to
Often a loudspeaker is only provided with terminal, realizes monophonic playing function, in monaural broadcast mode, you can only experience
To sound, the front and back position of music and tone color, the size of volume, and the sound horizontal movement such as from left to right can not be experienced,
Effect is to simplify for real natural phonation, has been distortion.
In order to strengthen the audio signal result of broadcast of mobile terminal, a kind of thinking is two loudspeakers of setting in terminal,
Realize that two-channel is played, and for the mobile terminals such as mobile phone, in order to strengthen Consumer's Experience, battery capacity requirement is being compared
In the case of height, mobile terminal is needed to do thinner and thinner as far as possible.Under the premise of such, two boomboxs are set on mobile phone
It is relatively difficult.
The content of the invention
The following is the general introduction of the theme to describing in detail herein.This general introduction is not to limit the protection model of claim
Enclose.
A kind of voice signal self-adaptive regulating and method are embodiments provided, improving mobile terminal carries out sound
Voice signal play quality when putting outside sound, strengthens Consumer's Experience.
To achieve these goals, a kind of voice signal self-adaptive regulating is embodiments provided, using setting
Putting the receiver in mobile terminal carries out being put outside sound, including：Control module and output module,
The control module, for when mobile phone is determined with a distance from human ear less than or equal to the first distance threshold, adjusting
The whole outer electric signal power for putting voice signal for being input to receiver is the first power, and according to the intrinsic frequency response curve adjustment of receiver
The cut-off frequency of digital filter is the first cut-off frequency；And/or,
When mobile phone is determined with a distance from human ear more than or equal to second distance threshold value, adjustment is input to the outer of receiver and puts
The electric signal power of voice signal is the second power, and adjusts the cutoff frequency of digital filter according to the intrinsic frequency response curve of receiver
Rate is the second cut-off frequency；
The output module, for according to putting voice signal outside the power and rate-adaptive pacemaker after adjustment；
Wherein, first power is less than second power, and first cut-off frequency is less than second cutoff frequency
Rate.
Optionally,
The control module, is additionally operable to when determining mobile phone with a distance from human ear more than the first distance threshold and less than the
Two distance thresholds, obtain the first corresponding relation of the distance value and performance number for prestoring, and according to first corresponding relation, adjust institute
State the outer electric signal power for putting voice signal for being input to receiver；And obtain the cutoff frequency of the distance value that prestores and digital filter
Second corresponding relation of rate, according to second corresponding relation, adjusts the cut-off frequency of the digital filter.
Optionally,
It is positive correlation corresponding relation that the control module obtains the first corresponding relation of the distance value and performance number for prestoring；
And/or, it is positive that the control module obtains the second corresponding relation of the cut-off frequency of the distance value and digital filter for prestoring
Close corresponding relation.
Optionally, described device also includes：
Measurement module, for measuring with a distance from human ear to mobile phone.
Optionally, described device also includes：
Memory module, for prestoring distance value and the first of the electric signal power value of voice signal of the mobile phone from human ear
Corresponding relation is to the first corresponding table, and/or prestores distance value and the cut-off frequency of digital filter of the mobile phone from human ear
Second corresponding relation is to the second corresponding table.
The embodiment of the present invention additionally provides a kind of voice signal adaptive regulation method, using being arranged on listening for mobile terminal
Cylinder carries out being put outside sound, and methods described includes：
When mobile phone is determined with a distance from human ear less than or equal to the first distance threshold, adjustment is input to the outer of receiver and puts
The electric signal power of voice signal is the first power, and adjusts the cutoff frequency of digital filter according to the intrinsic frequency response curve of receiver
Rate is the first cut-off frequency；And/or,
When mobile phone is determined with a distance from human ear more than or equal to second distance threshold value, adjustment is input to the outer of receiver and puts
The electric signal power of voice signal is the second power, and adjusts the cutoff frequency of digital filter according to the intrinsic frequency response curve of receiver
Rate is the second cut-off frequency；
The output module, for according to putting voice signal outside the power and rate-adaptive pacemaker after adjustment；
Wherein, first power is less than second power, and first cut-off frequency is less than second cutoff frequency
Rate.
Optionally, methods described also includes：
When mobile phone is determined with a distance from human ear more than the first distance threshold and less than second distance threshold value, prestored
Distance value and performance number the first corresponding relation, according to first corresponding relation, be input to the outer of receiver described in adjustment and put
The electric signal power of voice signal；And obtain the second corresponding relation of the distance value that prestores and the cut-off frequency of digital filter,
According to second corresponding relation, the cut-off frequency of the digital filter is adjusted.
Optionally,
First corresponding relation for obtaining the distance value and performance number for prestoring is positive correlation corresponding relation；And/or, it is described
The distance value that acquisition prestores is positive correlation corresponding relation with the second corresponding relation of the cut-off frequency of digital filter.
Optionally,
The judgement mobile phone is that mobile phone is measured with a distance from human ear using range sensor with a distance from human ear.
Optionally, methods described also includes：
The first corresponding relation that mobile phone is prestored from the electric signal power value of distance value and the voice signal of human ear is to the
One corresponding table, and/or mobile phone is prestored from the distance value of human ear and the second corresponding relation of the cut-off frequency of digital filter
To the second corresponding table.
The embodiment of the present invention also provides a kind of computer-readable recording medium, and be stored with computer executable instructions, described
The above-mentioned terminal lookup method based on audio-frequency information is realized when computer executable instructions are performed.
Compared with prior art, voice signal self-adaptive regulating provided in an embodiment of the present invention and method, by profit
With earpiece as loudspeaker, the played in stereo carried out when putting outside voice signal is coordinated with the existing loudspeaker of mobile phone.And
And Mobile state adjustment is entered to voice signal according to the distance of mobile phone and human ear, when mobile phone and human ear are closer to the distance, by reducing
The power of voice signal, increases frequency range to improve the tonequality of voice signal；When mobile phone and human ear it is distant when, by increase
The power of voice signal, reduces frequency range to improve the volume and loudness of voice signal, it is achieved thereby that according to mobile phone and human ear
The voice signal that distance is externally put carries out self-adaptative adjustment, preferably meets the demand of user, enhances Consumer's Experience.
After reading and understanding accompanying drawing and describing in detail, it can be appreciated that other aspects.
Description of the drawings
Accompanying drawing is used for providing further understanding technical scheme, and constitutes a part for specification, with this
The embodiment of application is used to explain the technical scheme of the application together, does not constitute the restriction to technical scheme.Attached
In figure：
Fig. 1 is the optional hardware architecture diagram of an optional mobile terminal for realizing the embodiment of the present invention；
Fig. 2 is the schematic diagram of voice signal self-adaptive regulating provided in an embodiment of the present invention；
Fig. 3 is the effect that voice signal regulation is carried out using voice signal self-adaptive regulating provided in an embodiment of the present invention
Fruit is schemed；
Fig. 4 is the flow chart of voice signal adaptive regulation method provided in an embodiment of the present invention；
Fig. 5 is the flow chart of the voice signal adaptive regulation method of present application example one；
Fig. 6 is the flow chart of the voice signal adaptive regulation method of present application example two.
The realization of the application purpose, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that specific embodiment described herein is not used to limit the application only to explain the application.
The mobile terminal of each embodiment of the invention is realized referring now to Description of Drawings.In follow-up description, use
For represent element such as " module ", " part " or " unit " suffix only for being conducive to the explanation of the application, itself
Not specific meaning.Therefore, " module " can be used mixedly with " part ".
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the embodiment of the present invention can include all
Such as mobile phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD (flat board electricity
Brain), PMP (portable media player), the mobile terminal of guider etc..
Fig. 1 is the optional hardware architecture diagram of an optional mobile terminal for realizing the embodiment of the present invention.
Mobile terminal 1 00 can include wireless communication unit 110, A/V (audio/video) 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 for illustrating
Part.More or less of component can alternatively be implemented.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 generated before the server or reception of broadcast singal and/or broadcast related information and/or broadcast related information
And send it to the server of terminal.Broadcast singal can include TV broadcast singals, radio signals, data broadcasting
Signal etc..And, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Pass information can also be provided via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 is receiving.Broadcast singal can be present 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 receive signal broadcast by using various types of broadcast systems.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), forward link media (MediaFLO@) Radio Data System, 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 be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.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 be logical including voice
Words signal, video calling signal or the various types of data for 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.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by the module can include WLAN (WLAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology include indigo plant
ToothTM, RF identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybeeTMEtc..
Location information module 115 is the module for checking or obtaining the positional information of mobile terminal.Location information module
Typical case be GPS (global positioning system).According to current technology, GPS module 115 is calculated from three or more satellites
Range information and correct time information and for calculate Information application triangulation, so as to according to longitude, latitude
Highly accurately calculate three-dimensional current location information.Currently, the method for calculating position and temporal information is defended using three
The error of star and the position that calculated by using other satellite correction and temporal information.Additionally, GPS module 115
Can be by Continuous plus current location information in real time come calculating speed information.
A/V input blocks 120 are used to receive audio or video signal.A/V input blocks 120 can include the He of camera 121
Microphone 1220, the static map that 121 pairs, camera is obtained in Video Capture pattern or image capture mode by image capture apparatus
The view data of piece or video is processed.Picture frame after process may be displayed on display unit 151.At Jing cameras 121
Picture frame after reason can be stored in memory 160 (or other storage mediums) or via wireless communication unit 110 and carry out
Send, two or more cameras 1210 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone relation mould
Sound (voice data) is received via microphone in formula, logging mode, speech recognition mode etc. operational mode, and can be by
Such acoustic processing is voice data.Audio frequency (voice) data after process can be changed in the case of telephone calling model
For the form output of mobile communication base station can be sent to via mobile communication module 112.Microphone 122 can implement all kinds
Noise eliminate (or suppress) algorithm eliminating (or suppression) in the noise for receiving and producing during sending audio signal or
Person disturbs.
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 is due to the sensitive component of the change of touched and caused resistance, pressure, electric capacity etc.), roller, rocking bar etc.
Deng.Especially, when touch pad is superimposed upon in the form of layer on display unit 151, touch-screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 1 00, and (for example, mobile terminal 1 00 opens or closes shape
State), the presence or absence of contact (that is, touch input), the mobile terminal of the position of mobile terminal 1 00, user for mobile terminal 1 00
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 be sensed
The sliding-type phone is opened or closed.In addition, sensing unit 140 can detect power subsystem 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 can will be combined below including proximity transducer 1410
Touch-screen to this being described.
Interface unit 170 is connected the interface that can pass through with mobile terminal 1 00 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 for device of the connection with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be that storage uses each of mobile terminal 1 00 for verifying user
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 via port or other attachment means with mobile terminal 1 00.Interface unit 170 can be used for receive from
The input (for example, data message, electric power etc.) of external device (ED) and the input for receiving is transferred in mobile terminal 1 00
One or more elements can be used for the 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 to pass through it by electricity
Power from base provide to mobile terminal 1 00 path or can serve as allow from base be input into various command signals pass through its
It is transferred to the path of mobile terminal.Can serve as recognizing that mobile terminal is from the various command signals or electric power of base input
The no signal being accurately fitted within base.Output unit 150 is configured to provide defeated with 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 processed in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia files
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 the display unit 151 and touch pad touch-screen with formation superposed on one another in the form of 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
It is 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 devices), for example, move
Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch-screen can be used for detection and touch
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal in call signal reception pattern, call mode, logging mode,
It is that wireless communication unit 110 is received or in memory 160 when under the isotypes such as speech recognition mode, broadcast reception mode
The voice data transducing audio signal of middle storage and it is output as sound.And, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation that terminal 100 is performed.
Dio Output Modules 152 can include loudspeaker, buzzer etc..
Alarm unit 153 can provide output so that event is notified to mobile terminal 1 00.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video is exported, alarm unit
153 can in a different manner provide output with the generation of notification event.For example, alarm unit 153 can be in the form of vibrating
Output is provided, when calling, message or some other entrance communication (incoming communication) are received, alarm list
Unit 153 can provide tactile output (that is, 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 be provided via display unit 151 or dio Output Modules 152.
Memory 160 can store software program for the process and control operation performed by controller 180 etc., Huo Zheke
With the data (for example, telephone directory, message, still image, video etc.) for temporarily storing own Jing outputs or will export.And
And, memory 160 can be storing the vibration of various modes with regard to exporting when touching and being applied to touch-screen and audio signal
Data.
Memory 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memory (for example, SD or DX memories etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only storage (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can perform memory with by network connection
The network storage device cooperation of 160 store function.
The overall operation of the generally control mobile terminal of controller 180.For example, controller 180 is performed and voice call, data
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 1810 of volume data, multi-media module 1810 can be constructed in controller 180, or is so structured that and control
Device processed 180 is separated.Controller 180 can be with execution pattern identifying processing, by the handwriting input for performing on the touchscreen or figure
Piece draws input and is 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
Appropriate electric power needed for part and component.
Various embodiments described herein can be with using such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implementing.For hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is designed to perform function described herein
Implementing, in some cases, such embodiment can be implemented at least one in electronic unit in controller 180.
For software is implemented, the embodiment of such as process or function can with allow to perform 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 appropriate programming language
Implement, software code can be stored in memory 160 and be performed by controller 180.
So far, own Jing describes mobile terminal according to its function.Below, for the sake of brevity, will description such as board-type,
Straight plate type mobile terminal in various types of mobile terminals of oscillating-type, slide type mobile terminal etc. is as an example.This
Bright embodiment can be applied to polytype mobile terminal, and be not limited to straight plate type mobile terminal.
Based on above-mentioned mobile terminal hardware configuration, the terminal based on audio-frequency information for proposing the embodiment of the present invention searches device
And each embodiment of method.
Fig. 2 is the schematic diagram of voice signal self-adaptive regulating provided in an embodiment of the present invention, as shown in Fig. 2 the dress
Putting can be carried on the mobile terminals such as mobile phone, carry out being put outside sound using the receiver of mobile terminal is arranged on, and the present embodiment is carried
For voice signal self-adaptive regulating, including：Control module and output module,
The control module, for when mobile phone is determined with a distance from human ear less than or equal to the first distance threshold, adjusting
The whole outer electric signal power for putting voice signal for being input to receiver is the first power, and according to the intrinsic frequency response curve adjustment of receiver
The cut-off frequency of digital filter is the first cut-off frequency；And/or,
When mobile phone is determined with a distance from human ear more than or equal to second distance threshold value, adjustment is input to the outer of receiver and puts
The electric signal power of voice signal is the second power, and adjusts the cutoff frequency of digital filter according to the intrinsic frequency response curve of receiver
Rate is the second cut-off frequency；
The output module, for according to putting voice signal outside the power and rate-adaptive pacemaker after adjustment；
Wherein, first power is less than second power, and first cut-off frequency is less than second cutoff frequency
Rate.
In an embodiment of the present embodiment, the control module, be additionally operable to when determine mobile phone from human ear away from
From more than the first distance threshold and less than second distance threshold value, close according to the distance value for prestoring is corresponding with the first of performance number
It is that the outer electric signal power for putting voice signal of receiver is input to described in adjustment；And according to the distance value and digital filtering for prestoring
Second corresponding relation of the cut-off frequency of device, adjusts the cut-off frequency of the digital filter.
In the present embodiment, the first corresponding relation that the control module obtains the distance value and performance number for prestoring is positive
Close corresponding relation；And/or, it is described to state the second couple that control module obtains the cut-off frequency of the distance value and digital filter for prestoring
Should be related to for positive correlation corresponding relation, i.e. the distance value and performance number positive correlation, the distance value cuts with digital filter
Only frequency positive correlation.
Illustrate by taking mobile phone as an example, the sound channel being related in cell phone system there are three tunnels, all the way sound channel is logical
The conversation voice that other side speaks during words, is pronounced by receiver；Second road sound channel is sent out when sending a telegram here, carrying out short message or set an alarm
The ringing tone for going out, and converse music and the video sound such as hands-free or broadcasting MP3, WAV, are pronounced by loudspeaker；The
Three tunnels are that both above sound can pass through earphone pronunciation.The road sound channels of Zhe tri- are required for being connected to filtering respectively in mobile phone
Circuit, protection circuit, audio-frequency amplifier part, electro-acoustic transducing device carry out the process of audio frequency and play.
In the present embodiment, in order to be able to raise one's voice to its utmost outside under current terminal structure state sound when support played in stereo,
By receiver when loudspeaker (loudspeaker) is used, this is equivalent to using two loudspeakers the embodiment of the present invention, and each loudspeaker is suitable
In a sound channel, so as to realize played in stereo.
Receiver is used when loudspeaker, needs to meet following condition：
First, when normal talking is used, receiver can meet the standard of common receiver by objective test criteria；
2nd, put outward when using, need receiver rated power than larger, so can just not hear the music of receiver broadcasting.
In order to meet second condition, the receiver of the function is supported, it is in the range of audio frequency frequency range (20-20kHz) and common
Receiver is equally used, and preferable loudspeaker frequency characteristic should be 20～20KHz, thus all audio frequency can equably be reset out
Come, but this does not accomplish.If also support in this frequency range it is high-power use, receiver is required very high and is easily existed
Receiver is damaged when playing low frequency, this is that the amplitude ratio of receiver is larger because the wavelength of low frequency signal is long, the calculating of wavelength is public
Formula is as follows：
In atmosphere sound propagation velocity c is definite value, and the more little then wavelength X of frequency f is bigger；
Therefore, support the receiver of this outer playing function when music is played, the frequency range of support just relatively narrowly, typically exists
During more than 1kHz, receiver can be used under high-power.Therefore high-pass filter (HPF-High is typically caused when music is played
Pass Filter) cut-off frequency be arranged on more than 1kHz.
When the device of the present embodiment is applied to mobile phone carries out played in stereo, the distance of people and mobile phone can be with should
It is changed with demand.Game is played when mobile phone is held, human ear is closer from mobile phone；When it is simple outer put listen music when, then having can
Energy human ear is distant from mobile phone.It is desirable that tonequality (high bass, soft degree, the fidelity that can hear when closer from mobile phone
Degree) it is better, when we are distant from mobile phone, especially in more noisy public arena, it would be desirable that hearing stereophone
The voice signal listened in the case of fruit becomes apparent from, and sound is some larger.
At present, we carry out voice regulation using the voice signal that mobile phone is externally put, be limited only to by volume key come
The size of volume is adjusted, this can only change the loudness of voice, but can not change the quality of voice signal, sound mentioned here
Signal quality includes high bass, soft degree, fidelity of voice signal etc..
Sound frequency is divided into low frequency, intermediate frequency and high frequency, the speech quality that the composition difference that each frequency component contains is obtained
Also it is corresponding different.If the frequency component high-frequency ratio in voice signal is more, sound is sounded can be more sharp；If sound
Frequency component low frequency in signal is relatively more, then sound relatively soft.
Therefore in the present embodiment, according to mobile phone and the distance of human ear, adaptive adjustment inputs to the electric signal of receiver
Power and high-pass filter cut-off frequency so that apart from it is near when tonequality more preferably, apart from it is remote when sound more greatly.The effect of adjustment
Fruit is as shown in Figure 3.Show in Fig. 3 apart from it is close when effect 30, distance increase when effect 31, distance continue increase when
Effect 32.
When human ear is close apart from mobile phone, i.e., mobile phone is less than the first distance threshold with a distance from human ear, and adjustment is input to be listened
The electric signal power of cylinder is the first relatively small power, and the cut-off frequency for adjusting the digital filter of receiver is relatively small
First cut-off frequency, such frequency range is more relatively wide, due to the increase of frequency range, supplements low frequency part and makes voice softer,
Frequency distortion is reduced, so as to obtain more preferable tonequality, the ratio of more preferable height sonority can be obtained, closer to original sound
Color；With distance increase, the voice signal power for inputing to receiver gradually increases, the cut-off frequency of the digital filter of receiver
Gradually increase, corresponding frequency range also will and then become narrow gradually.Because sound frequency is higher, the sound film amplitude of receiver is less, defeated
Entering can be relatively larger to the sound power of receiver, in addition, narrowing with frequency range, low frequency part is cut down and makes sound
Message number is louder and clearer.Accordingly even when mobile phone is distant from human ear, also can hear than larger sound.So it is achieved that mobile phone
Self-adaptative adjustment of the receiver to voice signal during played in stereo, on the premise of receiver performance is met, dynamic adjustment is to low frequency
Filtration, with dynamic ensure tonequality, enhance Consumer's Experience.
In the present embodiment, described device also includes, measurement module, for measuring with a distance from human ear to mobile phone.
The present embodiment measures mobile phone with a distance from human ear by range sensor, and the range sensor is called displacement transducer.Distance
Sensor is generally located on the both sides of earpiece or in earpiece groove, different according to the element for using, distance
Sensor can be divided into optical displacement sensor, linear proximity transducer, ultrasonic displacement sensor etc..
In the present embodiment, described device also includes, memory module, for prestore mobile phone from human ear distance value with
First corresponding relation of the electric signal power value of voice signal prestores distance value of the mobile phone from human ear to the first corresponding table
With the second corresponding relation of the cut-off frequency of digital filter to the second corresponding table.First corresponding relation of the first correspondence table
Can be provided by mobile-phone manufacturers with the second corresponding relation in the second correspondence table, be built in advance in mobile phone, or use
Family is configured according to use demand by mobile phone.
If during putting outside sound, mobile phone is changed with a distance from human ear, then can according to mobile phone from human ear away from
From value and the corresponding table of the electric signal power value of voice signal, the electric signal power of the voice signal for being input to receiver is adjusted；And
And, according to the distance value for prestoring and the corresponding table of the cut-off frequency of digital filter, adjust the cutoff frequency of the digital filter
Rate.
So, when mobile phone reduces with a distance from human ear, increase frequency range, strengthen sound signal quality；In mobile phone from human ear
Distance increase when, increase voice signal electric signal power, increase sound.It is achieved thereby that receiver is to the adaptive of voice signal
Should adjust.
In the present embodiment, by using earpiece as loudspeaker, coordinating with the existing loudspeaker of mobile phone carries out sound
Played in stereo when putting outside signal.And Mobile state adjustment is entered to voice signal according to the distance of mobile phone and human ear, works as mobile phone
When closer to the distance with human ear, by the power for reducing voice signal, increase frequency range to improve the tonequality of voice signal；When mobile phone with
Human ear it is distant when, by the power for increasing voice signal, reduce frequency range to improve the volume and loudness of voice signal, from
And realizing the voice signal externally put according to the distance of mobile phone and human ear carries out self-adaptative adjustment, preferably meet user's
Demand, enhances Consumer's Experience.
In the present embodiment, the outer voice signal put, including：The voice that output music, the tinkle of bells, user voluntarily record
One or more kinds of combinations in information.
Wherein, the music, the tinkle of bells can be systemic presupposition, or according to the personal needs of user by user
Voluntarily arrange.
In an embodiment of the present embodiment, the voice signal self-adaptive regulating also includes：
Setting module, for the set information of receive user, and performs outside the unlatching receiver according to the set information
Playing function is not turned on the operation of the receiver outer playing function.
When the operation for receiving user's unlatching receiver outer playing function, then use receiver as loudspeaker, realize double
Sound channel is played；When the operation for receiving user and being not turned on the receiver outer playing function, then enter the receiver as conventional receiver
Exercise and use.
It should be noted that the control module in voice signal self-adaptive regulating provided in an embodiment of the present invention can be with
In arranging controller 180 in FIG, range sensor can be arranged in sensing unit 140 in FIG, and memory module can
In to arrange memory 160 in FIG, output module can be arranged in output unit 150 in FIG, and setting module can
In to arrange user input unit 130 in FIG.
Hardware configuration and voice signal self-adaptive regulating based on above-mentioned mobile terminal, proposes the embodiment of the present invention
Voice signal adaptive regulation method.
Fig. 4 is the flow chart of voice signal adaptive regulation method provided in an embodiment of the present invention.As shown in figure 4, this reality
The voice signal adaptive regulation method of example offer is applied, in being applied to the mobile terminals such as mobile phone, using being arranged on mobile terminal
Receiver and loudspeaker carry out being put outside sound, comprise the following steps：
Step 401：When mobile phone is determined with a distance from human ear less than or equal to the first distance threshold, adjustment is input to be listened
The outer electric signal power for putting voice signal of cylinder is the first power, and according to the intrinsic frequency response curve adjustment digital filter of receiver
Cut-off frequency be the first cut-off frequency；And/or,
When mobile phone is determined with a distance from human ear more than or equal to second distance threshold value, adjustment is input to the outer of receiver and puts
The electric signal power of voice signal is the second power, and adjusts the cutoff frequency of digital filter according to the intrinsic frequency response curve of receiver
Rate is the second cut-off frequency；
Step 402：According to putting voice signal outside the power and rate-adaptive pacemaker after adjustment；
Wherein, first power is less than second power, and first cut-off frequency is less than second cutoff frequency
Rate.
In the present embodiment, as a kind of embodiment, methods described also includes：When determining mobile phone with a distance from human ear
More than the first distance threshold and less than second distance threshold value, according to the distance value for prestoring and the corresponding relation of performance number, adjust
The outer electric signal power for putting voice signal for being input to receiver；And according to the cut-off of the distance value and digital filter for prestoring
The corresponding relation of frequency, adjusts the cut-off frequency of the digital filter.
In the present embodiment, the cutoff frequency of the distance value and performance number positive correlation, the distance value and digital filter
Rate positive correlation.
In the present embodiment, methods described also includes：
Mobile phone is prestored from the distance value of human ear and the corresponding relation of the electric signal power value of voice signal to corresponding table,
And mobile phone is prestored from the distance value of human ear and the corresponding relation of the cut-off frequency of digital filter to corresponding table.The correspondence table
In corresponding relation can be provided by mobile-phone manufacturers, be built in advance in mobile phone, or user be logical according to use demand
Cross what mobile phone was configured.
In the present embodiment, methods described also includes：Mobile phone is surveyed with a distance from human ear using range sensor
Amount.
In the present embodiment, methods described also includes：
The set information of receive user, and the unlatching receiver outer playing function is performed according to the set information or is not opened
Open the operation of the receiver outer playing function.
When the operation for receiving user's unlatching receiver outer playing function, then use receiver as loudspeaker, realize double
Sound channel is played；When the operation for receiving user and being not turned on the receiver outer playing function, then enter the receiver as conventional receiver
Exercise and use.
Tut signal adaptive tune is referred to regard to the process details of the voice signal adaptive regulation method
The description of regulating device, therefore repeat no more in this.
The application of the present processes embodiment is illustrated below by way of multiple examples.
Example one
Fig. 5 is the flow chart of the voice signal adaptive regulation method of present application example one.As shown in figure 5, this example is carried
For method comprise the following steps：
Step 501：Play when user plays, open receiver outer playing function；
Step 502：Judge which mobile phone is located at a distance from human ear interval, be less than or equal to the first distance threshold,
More than or equal to second distance threshold value, or between the first distance threshold and second distance threshold value；When less than or wait
In the first distance threshold, execution step 503, when more than or equal to second distance threshold value, execution step 504, when positioned at first
Between distance threshold and second distance threshold value, execution step 505；
Step 503：It is the first power that adjustment is input to the outer electric signal power for putting voice signal of receiver, and according to receiver
The cut-off frequency of intrinsic frequency response curve adjustment digital filter is the first cut-off frequency, then execution step 506；
Step 504：It is the second power that adjustment is input to the outer electric signal power for putting voice signal of receiver, and according to receiver
The cut-off frequency of intrinsic frequency response curve adjustment digital filter is the second cut-off frequency；Then execution step 506；
Step 505：According to the corresponding relation of the distance value and performance number for prestoring, the outer sound reproduction of receiver is input to described in adjustment
The electric signal power of message number；And according to the distance value for prestoring and the corresponding relation of the cut-off frequency of digital filter, adjust institute
State the cut-off frequency of digital filter, then execution step 506；
Step 506：According to putting voice signal outside the power and rate-adaptive pacemaker after adjustment.
Example two：
Fig. 6 is the flow chart of the voice signal adaptive regulation method of present application example two.As shown in fig. 6, this example is carried
For method comprise the following steps：
Step 601：When user listens music, receiver outer playing function is opened；
Step 602：Mobile phone is determined with a distance from human ear more than or equal to second distance threshold value, adjustment is input to receiver
The outer electric signal power for putting voice signal be the second power, and according to the intrinsic frequency response curve adjustment digital filter of receiver
Cut-off frequency is the second cut-off frequency；
Step 603：According to putting voice signal outside the power and rate-adaptive pacemaker after adjustment.
By using earpiece as loudspeaker, coordinate with the existing loudspeaker of mobile phone carries out sound to the embodiment of the present invention
Played in stereo when putting outside signal.And Mobile state adjustment is entered to voice signal according to the distance of mobile phone and human ear, works as mobile phone
When closer to the distance with human ear, by the power for reducing voice signal, increase frequency range to improve the tonequality of voice signal；When mobile phone with
Human ear it is distant when, by the power for increasing voice signal, reduce frequency range to improve the volume and loudness of voice signal, from
And realizing the voice signal externally put according to the distance of mobile phone and human ear carries out self-adaptative adjustment, preferably meet user's
Demand, enhances Consumer's Experience.
Additionally, the embodiment of the present invention also provides a kind of computer-readable recording medium, be stored with computer executable instructions,
The computer executable instructions realize the above-mentioned terminal lookup method based on audio-frequency information when being performed.
It should be noted that herein, term " including ", "comprising" or its any other variant are intended to non-row
His property is included, so that a series of process, method, article or device including key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", 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 add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, computer takes
Business device, air-conditioner, or network equipment etc.) perform method described in each embodiment of the invention.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is 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 (10)
1. a kind of voice signal self-adaptive regulating, it is characterised in that carry out sound using the receiver for being arranged on mobile terminal
Put outward, including：Control module and output module,
The control module, for when mobile phone is determined with a distance from human ear less than or equal to the first distance threshold, adjusting defeated
Enter to receiver the outer electric signal power for putting voice signal be the first power, and according to receiver it is intrinsic frequency response curve adjustment numeral
The cut-off frequency of wave filter is the first cut-off frequency；And/or,
When mobile phone is determined with a distance from human ear more than or equal to second distance threshold value, adjustment is input to the outer sound reproduction sound of receiver
The electric signal power of signal is the second power, and is according to the cut-off frequency of the intrinsic frequency response curve adjustment digital filter of receiver
Second cut-off frequency；
The output module, for according to putting voice signal outside the power and rate-adaptive pacemaker after adjustment；
Wherein, first power is less than second power, and first cut-off frequency is less than second cut-off frequency.
2. device according to claim 1, it is characterised in that
The control module, be additionally operable to when determine mobile phone with a distance from human ear more than the first distance threshold and less than second away from
From threshold value, the first corresponding relation of the distance value and performance number for prestoring is obtained, according to first corresponding relation, adjusted described defeated
Enter the outer electric signal power for putting voice signal to receiver；And obtain the cut-off frequency of the distance value and digital filter for prestoring
Second corresponding relation, according to second corresponding relation, adjusts the cut-off frequency of the digital filter.
3. device according to claim 1, it is characterised in that
It is positive correlation corresponding relation that the control module obtains the first corresponding relation of the distance value and performance number for prestoring；And/or,
It is corresponding for positive correlation with the second corresponding relation of the cut-off frequency of digital filter that the control module obtains the distance value for prestoring
Relation.
4. device according to claim 1, it is characterised in that also include：
Measurement module, for measuring with a distance from human ear to mobile phone.
5. device according to claim 1, it is characterised in that also include：
Memory module, it is corresponding with the first of the electric signal power value of voice signal from the distance value of human ear for prestoring mobile phone
It is related to the first corresponding table, and/or prestores distance value and the second of the cut-off frequency of digital filter of the mobile phone from human ear
Corresponding relation is to the second corresponding table.
6. a kind of voice signal adaptive regulation method, it is characterised in that carry out sound using the receiver for being arranged on mobile terminal
Put outward, methods described includes：
When mobile phone is determined with a distance from human ear less than or equal to the first distance threshold, adjustment is input to the outer sound reproduction sound of receiver
The electric signal power of signal is the first power, and is according to the cut-off frequency of the intrinsic frequency response curve adjustment digital filter of receiver
First cut-off frequency；And/or,
When mobile phone is determined with a distance from human ear more than or equal to second distance threshold value, adjustment is input to the outer sound reproduction sound of receiver
The electric signal power of signal is the second power, and is according to the cut-off frequency of the intrinsic frequency response curve adjustment digital filter of receiver
Second cut-off frequency；
The output module, for according to putting voice signal outside the power and rate-adaptive pacemaker after adjustment；
Wherein, first power is less than second power, and first cut-off frequency is less than second cut-off frequency.
7. method according to claim 6, it is characterised in that methods described also includes：
When determining mobile phone with a distance from human ear more than the first distance threshold and less than second distance threshold value, acquisition prestore away from
From value and the first corresponding relation of performance number, according to first corresponding relation, the outer sound reproduction sound of receiver is input to described in adjustment
The electric signal power of signal；And the second corresponding relation of the distance value that prestores and the cut-off frequency of digital filter is obtained, according to
Second corresponding relation, adjusts the cut-off frequency of the digital filter.
8. method according to claim 6, it is characterised in that
First corresponding relation for obtaining the distance value and performance number for prestoring is positive correlation corresponding relation；And/or, the acquisition
The distance value for prestoring is positive correlation corresponding relation with the second corresponding relation of the cut-off frequency of digital filter.
9. method according to claim 6, it is characterised in that
The judgement mobile phone is that mobile phone is measured with a distance from human ear using range sensor with a distance from human ear.
10. method according to claim 6, it is characterised in that also include：
Mobile phone is prestored from the distance value of human ear and first corresponding relation to first pair of the electric signal power value of voice signal
Answer table, and/or prestore mobile phone from the distance value of human ear and the second corresponding relation of the cut-off frequency of digital filter to the
Two corresponding tables.
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| CN106657621B (en) | 2020-03-27 |
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