CN107301029A - Dio Output Modules, method and terminal device - Google Patents
Dio Output Modules, method and terminal device Download PDFInfo
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- CN107301029A CN107301029A CN201710464943.3A CN201710464943A CN107301029A CN 107301029 A CN107301029 A CN 107301029A CN 201710464943 A CN201710464943 A CN 201710464943A CN 107301029 A CN107301029 A CN 107301029A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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Abstract
The disclosure provides a kind of dio Output Modules, method and terminal device, wherein, the dio Output Modules include：Audio codec, two audio signal driving circuits, a conventional speakers and a piezoelectric transducer, wherein, the input of described two audio signal driving circuits is connected with the audio signal output end of the audio codec；The output end of first audio signal driving circuit connects the input of the piezoelectric acoustic sensor, for driving the piezoelectric transducer output acoustic information；The output end of second audio signal driving circuit connects the input of the conventional speakers, for driving the conventional speakers output acoustic information.The dio Output Modules provided using the disclosure can improve the loudness and audio of terminal device playback sound, lift the audio experience of terminal device.
Description
Technical field
This disclosure relates to communication technical field, more particularly to a kind of dio Output Modules, method and terminal device.
Background technology
With the development of electronic communication, audiovisual experience requirement of the user to terminal devices such as mobile phone, tablet devices is got over
Come higher, it is desirable to realize more preferably tonequality and bigger output volume, and the terminal device in correlation technique is typically provided only with
One loudspeaker, it is impossible to meet above-mentioned audio demand.
In order to solve the above problems, correlation technique is typically using one loudspeaker output audio letter of increase in terminal device
Number, above-mentioned loudspeaker is generally traditional coil-moving speaker.It is complicated yet with existing loadspeaker structure, and for audio
Consideration needs to separate two loudspeakers, is independently arranged, it is necessary to take more spaces, and need in terminal device shell
Diverse location sets up acoustic aperture, though requirement of the user to audio can be met, can not meet user it is lightening to terminal device structure,
The demand of height screen accounting.
The content of the invention
In view of this, the disclosure provides a kind of dio Output Modules and terminal device, to solve the deficiency in correlation technique.
According to the first aspect of the embodiment of the present disclosure there is provided a kind of dio Output Modules, it is arranged in terminal device, wraps
Include：Audio codec, two audio signal driving circuits, a loudspeaker and a piezoelectric transducer, wherein, it is described two
The input of audio signal driving circuit is connected with the audio signal output end of the audio codec；
The output end of first audio signal driving circuit connects the input of the piezoelectric acoustic sensor, for driving
State piezoelectric transducer output acoustic information；
The output end of second audio signal driving circuit connects the input of the conventional speakers, for driving described raise
Sound device exports acoustic information.
Optionally, the first via audio signal driving circuit includes：First power amplification circuit, first power is put
Big circuit receives the first via source audio signal of the audio codec output, strengthens the power of the first via audio signal
Export afterwards to the input of the piezoelectric transducer, drive the piezoelectric transducer output acoustic information.
Optionally, the first via audio signal driving circuit also includes：High-pass filter, the high-pass filter is extracted
HFS in the first via source audio signal of the audio codec output, output to first power amplification electricity
Road.
Optionally, second road audio signal driving circuit includes：Second power amplification circuit, second power is put
Big circuit receives the second tunnel source audio signal of the audio codec output, strengthens the power of second tunnel audio signal
Afterwards, the loudspeaker output acoustic information is driven.
Optionally, second road audio signal driving circuit also includes：Bandpass filter, the bandpass filter is received
Second tunnel source audio signal of the audio codec output, extracts the low frequency signal part in the audio signal of second tunnel
After export to second power amplification circuit.
Optionally, the frequency range of the medium-high frequency voice signal is：1000Hz~10000Hz.
Optionally, the frequency range of the low frequency sound signals part is：300Hz~2200Hz.
According to the second aspect of the embodiment of the present disclosure there is provided a kind of audio-frequency inputting method, using including any of the above-described sound
In the terminal device of frequency output module, methods described includes：
Playback of audio files is treated in acquisition；
Treat that playback of audio files is converted into simulated audio signal by described；
The simulated audio signal is transmitted separately to two audio signal driving circuits, with drive the speaker and pressure respectively
Electric transducer exports acoustic information.
Alternatively, it is described to treat that playback of audio files is converted into simulated audio signal by described, including：
Playback of audio files is treated described in parsing, corresponding digital audio and video signals are obtained；
The digital audio and video signals are filtered using two kinds of default filtering algorithms, the audio number of two kinds of frequency ranges is obtained
According to；
The voice data of first frequency range is converted into first via simulated audio signal；
The voice data of second frequency range is converted into the second road simulated audio signal.
According to the third aspect of the embodiment of the present disclosure there is provided a kind of terminal device, including：
Processor；
For storing the memory of processor-executable instruction and dio Output Modules for playing back sound；
Wherein, the processor is configured as：
Playback of audio files is treated in acquisition；
Treat that playback of audio files is converted into simulated audio signal by described；
The simulated audio signal is transmitted separately to two audio signal driving circuits, with drive the speaker and pressure respectively
Electric transducer exports acoustic information；
The dio Output Modules, including：
Two audio signal driving circuits, a loudspeaker and the piezoelectric transducer being connected with the processor, its
In, the input of described two audio signal driving circuits is connected with the audio signal output end of the processor；
The output end of first audio signal driving circuit connects the input of the piezoelectric acoustic sensor, for driving
State piezoelectric transducer output acoustic information；
The output end of second audio signal driving circuit connects the input of the loudspeaker, for driving the loudspeaker
Export acoustic information.
The technical scheme that the embodiment of the present disclosure is provided can include the following benefits：
The dio Output Modules that the embodiment of the present disclosure is provided are carried out in loudspeaker on the basis of acoustic playback, can be with
Acoustic playback is carried out by a piezoelectric transducer, equivalent to possessing two loudspeakers, terminal device playback sound is effectively enhanced
The loudness of sound, and make playback sound that there is stereophonic effect, strengthen acoustic playback audio, lift the audiovisual experience of terminal device.
In the embodiment of the present disclosure, the mode that piezoelectric transducer exports sound as loudspeaker is conducted by piezoelectric transducer
Discharged on to the positive glass panel of terminal device, it is not necessary to set up acoustic aperture, the front of terminal device on the terminal device
Also without the position of reserved receiver so that the touch-screen area under touch module glass surface will not be because of the position for avoiding receiver
And reduce, effectively increase the screen accounting of touch-screen.
In the embodiment of the present disclosure, the receiver Receiver that piezoelectric transducer acts not only as terminal device is used, also
It can be multiplexed and be used as loudspeaker under the driving of the first audio drive circuitry, while realizing enhancing playback audio and loudness,
But do not increase the hardware configuration of terminal device, there is further lightening using terminal device structure design.
In the embodiment of the present disclosure, by carrying out scaling down processing to the audio signal for being input to loudspeaker, make audio output mould
The level clearly more demarcated, definition of block output sound is higher, terminal device is realized more preferably tonequality and bigger output volume, carries
The audio experience of terminal device is risen.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the disclosure
Example, and be used to together with specification to explain the principle of the disclosure.
Fig. 1 is a kind of structured flowchart of dio Output Modules of the disclosure according to an exemplary embodiment；
Fig. 2 is the schematic diagram of the first audio signal driving circuit shown in Fig. 1；
Fig. 3 is the structured flowchart of another dio Output Modules of the disclosure according to an exemplary embodiment；
Fig. 4-1 is the structural representation of high-pass filtering circuit in the Fig. 3 of the disclosure according to an exemplary embodiment；
Fig. 4-2 is Fig. 4-1 filter effect schematic diagram；
Fig. 4-3 is the structural representation of bandwidth-limited circuit in the Fig. 3 of the disclosure according to an exemplary embodiment；
Fig. 4-4 is Fig. 4-3 filter effect schematic diagram；
Fig. 5 is a kind of flow chart of audio-frequency inputting method of the disclosure according to an exemplary embodiment；
Fig. 6 is the flow chart of another audio-frequency inputting method of the disclosure according to an exemplary embodiment；
Fig. 7 is a kind of structural representation of terminal device of the disclosure according to an exemplary embodiment.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
The term used in the disclosure is the purpose only merely for description specific embodiment, and is not intended to be limiting the disclosure.
" one kind ", " described " and "the" of singulative used in disclosure and the accompanying claims book are also intended to including majority
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wrapped
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the disclosure
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not departing from
In the case of disclosure scope, the first information can also be referred to as the second information, similarly, and the second information can also be referred to as
One information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining ".
In order to meet on the basis of terminal device structure space is not increased, make the output audio of terminal device more preferable, than
If any the volume of surround sound audio, more preferable tonequality and Geng Gao, present disclose provides a kind of dio Output Modules, it is arranged at
In terminal device.Above-mentioned terminal device can be mobile phone, tablet device, wearable device etc..
A kind of structured flowchart of dio Output Modules of the reference picture 1 according to an exemplary embodiment, the disclosure is provided
Dio Output Modules can include：
Audio codec codec10, the first audio signal driving circuit 20, the second audio signal driving circuit 30, pressure
Electric transducer 40, conventional speakers 50.
Wherein, audio codec 10 is connected with the processor (not shown) of terminal device, the output of reception processing device
Audio file, and the audio file be decoded into after digital audio and video signals be converted into simulated audio signal, export to audio
Signal drive circuit.
In the embodiment of the present disclosure, audio codec 10 can include two output ends.Wherein, the first output end and first
The input connection of audio signal driving circuit 20；Second output end and the input of the second audio signal driving circuit 30 connect
Connect.
The output end of first audio signal driving circuit 20 connects the input of piezoelectric transducer 40.First audio signal is driven
Dynamic circuit 20 is used to drive piezoelectric transducer 40 to export acoustic information.
In the embodiment of the present disclosure, the first audio signal driving circuit 20 mainly includes：First power amplifier, for by
The power of simulated audio signal increases to predetermined power all the way, and driving piezoelectric transducer 40 works as loudspeaker Speaker.
The schematic diagram of first audio signal driving circuit of the reference picture 2 according to an exemplary embodiment, above-mentioned first
Power amplifier can be specially a standard model：LM48560 high tension voltage driving chip, equivalent to a kind of AB classes mould
Intend power amplifier.The high tension voltage driving chip receives the first via simulated audio signal of audio codec output, by the
The peak-to-peak voltage of simulated audio signal is enhanced to 30V, i.e. 30Vpkpk all the way, and the output end of driving high tension voltage driving chip connects
The piezoelectric transducer work connect.Two output ends TP705, TP706 of figure mesohigh voltage driver chips are respectively used to connection pressure
The positive and negative terminal of electric transducer.Above-mentioned PadTP705, PadTP706 can be by metal clips respectively with piezoelectric ceramic piece just
The metal contact that negative terminal is directly connected to.
In the embodiment of the present disclosure, piezoelectric transducer 40 is a kind of inverse piezoelectric effect of utilization piezoelectric, can be by electric energy
The sound sensor element of mechanical energy is converted into, for example, a kind of piezo ceramic element.Above-mentioned piezo ceramic element can also utilize pressure
The piezo-electric effect of electric material, is used in terminal device as receiver Receiver.Specifically, above-mentioned piezo ceramic element can
To be the piezoceramic material being fixedly connected by cantilever beam with terminal device center, such as, a kind of length, width and height are respectively：
23mm, 4mm, 1mm piezoelectric ceramic piece Piezo.
In the embodiment of the present disclosure, piezoelectric transducer 40 is as the loudspeaker Speaker course of work：Piezoelectric ceramics medium
Property with spontaneous polarization, and spontaneous polarization can change in the presence of external electric field.When the first audio drive circuitry
Electric field action when piezoelectric ceramic piece, piezoelectric ceramic piece can be made to deform.Specifically, when to piezoelectric ceramic piece loading and its
During spontaneous polarization identical external electric field, equivalent to the polarization intensity for enhancing piezoelectric ceramic piece so that the polarization of piezoelectric ceramic piece edge
Direction extends；Conversely, if loading reversed electric field to piezoelectric ceramic piece, piezoelectric ceramic piece can be promoted to shorten along polarised direction.
Therefore, when exporting the simulated audio signal that AC ammeter reaches to piezoelectric ceramic piece, equivalent to applying polarity to piezoelectric ceramic piece, big
The small external electric field frequently changed, so that piezoelectric ceramic piece produces vibration.Piezoelectric ceramic piece further by above-mentioned vibration successively
Center, the contact panel TP modules of terminal device are passed to, voice message is conducted to TP (Touch Panel, contact panel)
The glass panel of module, is discharged by glass panel, user is heard acoustic information.
In the disclosed embodiments, above-mentioned piezoelectric ceramic piece is also used as under the driving of the first audio drive circuitry
The loudspeaker of output acoustic information is used, and to strengthen loudness during terminal device playback acoustic information, but is not increased terminal and is set
Standby hardware configuration, can save the space of terminal device.
The output end of second audio signal driving circuit 30 is connected with the input of conventional speakers 50.Second audio signal
Drive circuit 30 is used to drive conventional speakers 50 to export acoustic information.
In the embodiment of the present disclosure, the second audio signal driving circuit 30 can include：Second power amplifier, for by
The power of two road simulated audio signals increases to predetermined power, and driving conventional speakers 50 send sound.Wherein, above-mentioned routine is raised
Sound device 50 can be the coil-moving speaker used in correlation technique, the structure of its drive circuit referring to correlation technique, this
Place is no longer described in detail.
The power amplifier used in the embodiment of the present disclosure can be any one following audio-frequency power amplifier：A classes, B
Class, AB classes, D classes, K genus audio power amplifiers or intelligent power amplifier Smart PA (Power Amplifier, power
Amplifier).
The dio Output Modules that the embodiment of the present disclosure is provided are equivalent to possessing two loudspeakers, i.e., in a conventional speakers
Carry out on the basis of acoustic playback, acoustic playback can also be carried out by a piezoelectric transducer, effectively enhance terminal device
The loudness of sound is played back, and makes playback sound that there is stereophonic effect, strengthens acoustic playback audio, the audiovisual of terminal device is lifted
Experience.
On the other hand, the mode of the increased loudspeaker output sound of the disclosure is to conduct to terminal to set by piezoelectric transducer
Discharged on standby positive glass panel, it is not necessary to set up acoustic aperture on the terminal device, the front of terminal device also without
The position of reserved receiver so that the touch-screen area under touch module glass surface will not be reduced because of the position for avoiding receiver,
Effectively increase the screen accounting of touch-screen.
In addition, piezoelectric transducer can be used as receiver Receiver during terminal device hand-free call in the related art
Use, in the embodiment of the present disclosure, above-mentioned piezoelectric ceramic piece can also be multiplexed and raise one's voice under the driving of the first audio drive circuitry
Device is used, and while realizing enhancing playback audio and loudness, is not increased the hardware configuration of terminal device but, is utilized terminal device
Structure design is further lightening.
The full frequency band audio frequency range that human ear can be differentiated probably is：20Hz~20000Hz, but the working frequency of loudspeaker
Scope is extremely difficult to the distinguishable audio frequency range of human ear.Piezoelectric transducer Piezo to the response characteristic of high frequency band signal compared with
It is good, and the operating frequency range of conventional speakers is generally：300Hz~2500Hz.If full frequency band voice signal is through any of the above-described
After loudspeaker output, voice signal distortion occurs in the signal outside speaker operation band limits after output.
Frequency response characteristic based on above-mentioned Piezo and conventional speakers, can also be in another embodiment of the disclosure
At least increase wave filter in audio signal driving circuit all the way, make two loudspeakers coordinate the acoustic information of output to have more preferable
Tonequality.
Referring to the structured flowchart of another dio Output Modules of the Fig. 3 according to an exemplary embodiment, shown in Fig. 1
On the basis of embodiment, high-pass filter 201 can be increased in the first audio signal driving circuit.The high-pass filter 201
Low frequency signal in the first via source audio signal that can be exported to audio codec codec be filtered, and only make to be higher than the
One default cut-off frequency f10HFS pass through, after the power amplifier of the first power amplifier 202, driving Piezo work.Can be with
Increase bandpass filter in the second audio signal driving circuit, the bandpass filter can be defeated to audio codec codec
Low frequency signal and higher signal in the second tunnel source audio signal gone out are filtered, and only lead to the audio signal of partial-band
Cross, after the power amplifier of the second power amplifier 303, driving conventional speakers work.
Fig. 4-1 shows the structural representation of high-pass filtering circuit 201 in Fig. 3, the first via according to an exemplary embodiment
Source audio signal can be exported higher than cut-off frequency f after the high pass filter filters10Simulated audio signal, it is assumed that cut-off
Frequency f10For 1000Hz, then high frequency difference output 1000Hz~10000Hz high band audio signal.Its filter effect exported
Schematic diagram can be as shown in the Fig. 4-2.
Because piezoelectric transducer Piezo belongs to capacitive device, there is preferable response to high-frequency signal, therefore, first
Increase high-pass filter in audio signal driving circuit, the definition of the high-frequency sound signal of Piezo outputs can be made higher.
Similarly, increase bandpass filter in the second audio signal driving circuit, make to export the sound to conventional speakers
Frequency range where signal is matched with the working frequency range of above-mentioned conventional speakers, so that it is more preferable to drive conventional speakers to export definition
Middle low-frequency sound information.
Fig. 4-3 shows the structural representation of bandwidth-limited circuit in Fig. 3 according to an exemplary embodiment, the bandpass filtering
Device includes：One gain control circuit, high-pass filter, low pass filter, an isolated amplifier.Above-mentioned gain
Control circuit is made up of R19, R20, R21, linear amplifier U6, and isolated amplifier is by R12, R15, R13, linear amplifier U4 structures
Into.Above-mentioned high-pass filter and low pass filter can be the Second-Order Active Filters of Sallen-Key structures.It is another in the disclosure
Can also be single order or three order active filter in one embodiment.
Second tunnel source audio signal after gain control circuit, first pass around high-pass filter (High Pass Filter,
HPF), it is assumed that high-pass filter HPF cut-off frequency f20For 350Hz, then the audio signal of high-pass filter output be higher than
350Hz audio signal, then carry out High frequency filter by a low pass filter (Low Pass Filter, LPF), it is assumed that should
The cut-off frequency f of low pass filter30For 2000Hz, then the audio signal of bandpass filter output is the frequency of low frequency difference output
Segment limit is：350Hz~2000Hz.The filter effect schematic diagram of the band filter can be as shown in Fig. 4-4.
The cut-off frequency of each wave filter can according to actual needs, by changing electrical equipment member in circuit in above-mentioned filter circuit
The electrical value of part is adjusted, and the disclosure is not restricted to this.
In the embodiment of the present disclosure, by carrying out scaling down processing to the audio signal for being input to loudspeaker, make audio output mould
The level clearly more demarcated, definition of block output sound is higher, enhances the tonequality that terminal device plays sound, improves terminal device
Audio experience.
Accordingly, the disclosure additionally provides a kind of terminal device, is provided with the terminal device any of the above-described
The dio Output Modules that embodiment is provided.The dio Output Modules that terminal device can use the disclosure to provide play back various sound
Information, such as carry out audio playback in the application scenarios such as VOIP, live, wechat, navigation, hand-held call, hand-free call；May be used also
To carry out music etc..
In addition, the disclosure additionally provides a kind of audio-frequency inputting method, applied in the processor of terminal device, the terminal is set
It is standby also to include the dio Output Modules that any of the above-described embodiment is provided.
A kind of flow chart of audio-frequency inputting method of the reference picture 5 according to an exemplary embodiment, methods described can be with
Comprise the following steps：
In a step 11, obtain and treat playback of audio files；
In the case where receiving user input instruction, the application processor of terminal device can obtain user and specify playback
Audio file.Above-mentioned audio file can be the audio file of various coded formats, such as, MP3, WMA, WAV, ASF, AAC etc.
The audio file of form.
In step 12, treat that playback of audio files is converted into simulated audio signal by described；
The flow chart of another audio-frequency inputting method of the reference picture 6 according to an exemplary embodiment, above-mentioned steps 12
It can include：
In step 121, playback of audio files is treated described in parsing, audio digital signals are obtained；
The application processor of terminal device is obtained after after playback of audio files, and file is transferred into audio codec
Codec is decoded, and obtains digital audio and video signals to be played back.
In step 122, the digital audio and video signals to be played back are filtered using two kinds of default filtering algorithms, obtained
The voice data of two kinds of frequency ranges；
In the embodiment of the present disclosure, terminal device can also be replaced shown in above-mentioned Fig. 4-1 or Fig. 4-3 using software realization mode
Each filter circuit treat playback voice data and be filtered processing, the filtered digital audio-frequency data of acquisition.For example, using
One filtering algorithm replaces the high-pass filter shown in Fig. 4-1 to treat playback voice data and is filtered processing, obtains and includes high frequency
The voice data of section.Replace the bandpass filter shown in Fig. 4-3 to treat playback voice data using the second filtering algorithm to be filtered
Ripple processing, obtains the voice data for including middle low-frequency range.
In step 123, the voice data of the first frequency range is converted into first via simulated audio signal；
In the embodiment of the present disclosure, the voice data of above-mentioned first frequency range can be the voice data for only including high frequency, such as
1000Hz~10000Hz voice data, audio codec is carried out after digital-to-analogue conversion, obtains first via analogue audio frequency letter
Number, it is used as the input signal of piezoelectric transducer.
In step 124, the voice data of the second frequency range is converted into the second road simulated audio signal.
Similarly, the voice data of above-mentioned second frequency range can be the voice data for including middle low frequency, such as 350Hz~2200Hz
Voice data, audio codec carried out after digital-to-analogue conversion, obtains the second road simulated audio signal, is raised one's voice as conventional
The input signal of device such as coil-moving speaker.
In step 13, the simulated audio signal is transmitted separately to two audio signal driving circuits, to drive respectively
Dynamic conventional speakers and piezoelectric transducer output acoustic information.
The two-way simulated audio signal of output is transferred to above-mentioned by the audio codec in terminal device processor respectively
Two dio Output Modules drive circuits, drive piezoelectric transducer and conventional speakers output acoustic information respectively.
The disclosure provide terminal device in, treat playback voice data filtering can by processor audio
Manage module to complete, hardware filtering circuit is replaced with software, the design that circuit is controlled in dio Output Modules can be simplified, save hard
The design cost of part circuit.
Accordingly, the disclosure additionally provides a kind of terminal device, including：Processor；For storing the executable finger of processor
The memory of order；Dio Output Modules for playing back sound；
Wherein, the processor is configured as：
Playback of audio files is treated in acquisition；
Treat that playback of audio files is converted into simulated audio signal by described；
The simulated audio signal is transmitted separately to two audio signal driving circuits, to drive conventional speakers respectively
Acoustic information is exported with piezoelectric transducer；
The dio Output Modules, including：
Two audio signal driving circuits, a conventional speakers and the piezoelectric sensing being connected with the processor
Device, wherein, the input of described two audio signal driving circuits is connected with the audio signal output end of the processor；
The output end of first audio signal driving circuit connects the input of the piezoelectric acoustic sensor, for driving
State piezoelectric transducer output acoustic information；
The output end of second audio signal driving circuit connects the input of the conventional speakers, described normal for driving
Advise loudspeaker output acoustic information.
In a kind of structural representation of terminal device of the reference picture 7 according to an exemplary embodiment, the terminal device
It is provided with any of the above-described dio Output Modules for implementing to exemplify.Terminal device 700 can be specially mobile phone, computer,
Digital broadcast terminal, messaging devices, game console, tablet device, Medical Devices, body-building equipment, personal digital assistant,
Wearable device such as intelligent watch, intelligent glasses, Intelligent bracelet, intelligent running shoes etc..
Reference picture 7, terminal device 700 can include following one or more assemblies：Processing assembly 702, memory 704,
Power supply module 706, multimedia groupware 708, audio-frequency assembly 710, the interface 712 of input/output (I/O), sensor cluster 714,
And communication component 716.
The integrated operation of the usual control device 700 of processing assembly 702, such as with display, call, data communication, phase
Machine operates the operation associated with record operation.Processing assembly 702 can refer to including one or more processors 720 to perform
Order.In addition, processing assembly 702 can include one or more modules, it is easy to the friendship between processing assembly 702 and other assemblies
Mutually.For example, processing assembly 702 can include multi-media module, to facilitate between multimedia groupware 708 and processing assembly 702
Interaction.
Memory 704 is configured as storing various types of data supporting the operation in device 700.These data are shown
Example includes the instruction of any application program or method for being operated on device 700, and contact data, telephone book data disappears
Breath, picture, video etc..Memory 704 can be by any kind of volatibility or non-volatile memory device or their group
Close and realize, such as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM) is erasable to compile
Journey read-only storage (EPROM), programmable read only memory (PROM), read-only storage (ROM), magnetic memory, flash
Device, disk or CD.
Power supply module 706 provides electric power for the various assemblies of device 700.Power supply module 706 can include power management system
System, one or more power supplys, and other components associated with generating, managing and distributing electric power for device 700.
Multimedia groupware 708 is included in the screen of one output interface of offer between described device 700 and user.One
In a little embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen
Curtain may be implemented as touch-screen, to receive the input signal from user.Touch panel includes one or more touch sensings
Device is with the gesture on sensing touch, slip and touch panel.The touch sensor can not only sensing touch or sliding action
Border, but also detection touches or slide related duration and pressure with described.In certain embodiments, many matchmakers
Body component 708 includes a front camera and/or rear camera.When device 700 be in operator scheme, such as screening-mode or
During video mode, front camera and/or rear camera can receive the multi-medium data of outside.Each front camera and
Rear camera can be a fixed optical lens system or with focusing and optical zoom capabilities.
Audio-frequency assembly 710 is configured as output and/or input audio signal.For example, audio-frequency assembly 710 includes a Mike
Wind (MIC), when device 700 be in operator scheme, when such as call model, logging mode and speech recognition mode, microphone by with
It is set to reception external audio signal.The audio signal received can be further stored in memory 704 or via communication set
Part 716 is sent.In certain embodiments, audio-frequency assembly 710 also includes a loudspeaker, for exports audio signal.
I/O interfaces 712 is provide interface between processing assembly 702 and peripheral interface module, above-mentioned peripheral interface module can
To be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, volume button, start button and lock
Determine button.
Sensor cluster 714 includes one or more sensors, and the state for providing various aspects for device 700 is commented
Estimate.For example, sensor cluster 714 can detect opening/closed mode of device 700, the relative positioning of component is for example described
Component is the display and keypad of device 700, and sensor cluster 714 can be with 700 1 components of detection means 700 or device
Position change, the existence or non-existence that user contacts with device 700, the orientation of device 700 or acceleration/deceleration and device 700
Temperature change.Sensor cluster 714 can include proximity transducer, be configured to detect in not any physical contact
The presence of neighbouring object.Sensor cluster 714 can also include optical sensor, such as CMOS or ccd image sensor, for into
As being used in application.In certain embodiments, the sensor cluster 714 can also include acceleration transducer, gyro sensors
Device, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 716 is configured to facilitate the communication of wired or wireless way between device 700 and other equipment.Device
700 can access the wireless network based on communication standard, such as WiFi, 2G, 3G, 4G or 5G, or combinations thereof.In an example
Property embodiment in, communication component 716 receives broadcast singal from external broadcasting management system or broadcast phase via broadcast channel
Close information.In one exemplary embodiment, the communication component 716 also includes near-field communication (NFC) module, to promote short distance
Communication.For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band can be based in NFC module
(UWB) technology, bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 700 can be by one or more application specific integrated circuits
(ASIC), digital signal processor (DSP), digital signal processing appts (DSPD), PLD
(PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are realized.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instructing, example are additionally provided
Such as include the memory 704 of instruction, above-mentioned instruction can be performed by the processor 720 of device 700.For example, the non-transitory meter
Calculation machine readable storage medium storing program for executing can be that ROM, random access memory (RAM), CD-ROM, tape, floppy disk and optical data storage are set
It is standby etc..
Wherein, when the instruction in the storage medium is by the computing device so that device 700 is able to carry out one kind
Audio-frequency inputting method, including：
Playback of audio files is treated in acquisition；
Treat that playback of audio files is converted into simulated audio signal by described；
The simulated audio signal is transmitted separately to two audio signal driving circuits, to drive conventional speakers respectively
Acoustic information is exported with piezoelectric transducer.
Those skilled in the art will readily occur to its of the disclosure after considering specification and putting into practice disclosure disclosed herein
Its embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modifications, purposes or
Person's adaptations follow the general principle of the disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the disclosure and spirit are by following
Claim is pointed out.
It should be appreciated that the precision architecture that the disclosure is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (10)
1. a kind of dio Output Modules, it is characterised in that be arranged in terminal device, including：Audio codec, two audios
Signal drive circuit, a loudspeaker and a piezoelectric transducer, wherein, the input of described two audio signal driving circuits
It is connected with the audio signal output end of the audio codec；
The output end of first audio signal driving circuit connects the input of the piezoelectric acoustic sensor, for driving the pressure
Electric transducer exports acoustic information；
The output end of second audio signal driving circuit connects the input of the loudspeaker, for driving the loudspeaker to export
Acoustic information.
2. dio Output Modules according to claim 1, it is characterised in that the first via audio signal driving circuit bag
Include：First power amplification circuit, first power amplification circuit receives the first via source sound of the audio codec output
Exported after frequency signal, the power for strengthening the first via audio signal to the input of the piezoelectric transducer, drive the pressure
Electric transducer exports acoustic information.
3. dio Output Modules according to claim 2, it is characterised in that the first via audio signal driving circuit is also
Including：High-pass filter, the high-pass filter is extracted in the first via source audio signal of the audio codec output
HFS, output to first power amplification circuit.
4. dio Output Modules according to claim 1, it is characterised in that the second road audio signal driving circuit bag
Include：Second power amplification circuit, second power amplification circuit receives the second tunnel source sound of the audio codec output
After frequency signal, the power for strengthening second tunnel audio signal, the loudspeaker output acoustic information is driven.
5. dio Output Modules according to claim 4, it is characterised in that second road audio signal driving circuit is also
Including：Bandpass filter, the bandpass filter receives the second tunnel source audio signal of the audio codec output, extracts
Exported after low frequency signal part in the audio signal of second tunnel to second power amplification circuit.
6. dio Output Modules according to claim 3, it is characterised in that the frequency range of the medium-high frequency voice signal
For：1000Hz~10000Hz.
7. dio Output Modules according to claim 5, it is characterised in that the frequency model of the low frequency sound signals part
Enclose for：300Hz~2200Hz.
8. a kind of audio-frequency inputting method, it is characterised in that applied in terminal device, the terminal device includes claim 1
~7 any described dio Output Modules, methods described includes：
Playback of audio files is treated in acquisition；
Treat that playback of audio files is converted into simulated audio signal by described；
The simulated audio signal is transmitted separately to two audio signal driving circuits, passed with drive the speaker respectively and piezoelectricity
Sensor exports acoustic information.
9. method according to claim 8, it is characterised in that described to treat that playback of audio files is converted into analog audio by described
Frequency signal, including：
Playback of audio files is treated described in parsing, corresponding digital audio and video signals are obtained；
The digital audio and video signals are filtered using two kinds of default filtering algorithms, the voice data of two kinds of frequency ranges is obtained；
The voice data of first frequency range is converted into first via simulated audio signal；
The voice data of second frequency range is converted into the second road simulated audio signal.
10. a kind of terminal device, it is characterised in that including：
Processor；
For storing the memory of processor-executable instruction and dio Output Modules for playing back sound；
Wherein, the processor is configured as：
Playback of audio files is treated in acquisition；
Treat that playback of audio files is converted into simulated audio signal by described；
The simulated audio signal is transmitted separately to two audio signal driving circuits, passed with drive the speaker respectively and piezoelectricity
Sensor exports acoustic information；
The dio Output Modules, including：
Two audio signal driving circuits, a loudspeaker and the piezoelectric transducer being connected with the processor, wherein, institute
The input for stating two audio signal driving circuits is connected with the audio signal output end of the processor；
The output end of first audio signal driving circuit connects the input of the piezoelectric acoustic sensor, for driving the pressure
Electric transducer exports acoustic information；
The output end of second audio signal driving circuit connects the input of the loudspeaker, for driving the loudspeaker to export
Acoustic information.
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| CN201710464943.3A CN107301029A (en) | 2017-06-19 | 2017-06-19 | Dio Output Modules, method and terminal device |
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| CN201710464943.3A CN107301029A (en) | 2017-06-19 | 2017-06-19 | Dio Output Modules, method and terminal device |
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| CN107968975A (en) * | 2018-01-04 | 2018-04-27 | 成都威邦科技有限公司 | Audio frequency broadcast system based on bandpass filter |
| CN109068264A (en) * | 2018-05-04 | 2018-12-21 | 郑治龙 | A kind of sound field restoring decoder system |
| CN110166899A (en) * | 2019-06-06 | 2019-08-23 | 惠州市璧玉音响有限公司 | A kind of 5.1 sound channel wireless sound system of high-fidelity |
| CN110212982A (en) * | 2019-07-19 | 2019-09-06 | 广东工业大学 | A kind of voice communication assembly based on visible light |
| CN110557705A (en) * | 2019-08-26 | 2019-12-10 | Oppo广东移动通信有限公司 | Electronic device |
| CN112218209A (en) * | 2019-07-10 | 2021-01-12 | 北京小米移动软件有限公司 | Directional sound production component and mobile terminal |
| CN112788168A (en) * | 2019-11-04 | 2021-05-11 | 深圳市万普拉斯科技有限公司 | Audio output module and electronic equipment |
| CN113079446A (en) * | 2020-01-03 | 2021-07-06 | 北京小米移动软件有限公司 | Terminal equipment |
| CN113840212A (en) * | 2021-08-23 | 2021-12-24 | 荣耀终端有限公司 | Audio signal processing circuit and electronic equipment |
| WO2023035772A1 (en) * | 2021-09-07 | 2023-03-16 | 山东华菱电子股份有限公司 | Loudspeaker system and method for applying same |
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| WO2024037183A1 (en) * | 2022-08-16 | 2024-02-22 | Oppo广东移动通信有限公司 | Audio output method, electronic device and computer-readable storage medium |
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| CN110212982A (en) * | 2019-07-19 | 2019-09-06 | 广东工业大学 | A kind of voice communication assembly based on visible light |
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