CN207854114U - A kind of change of voice earphone - Google Patents
A kind of change of voice earphone Download PDFInfo
- Publication number
- CN207854114U CN207854114U CN201820123263.5U CN201820123263U CN207854114U CN 207854114 U CN207854114 U CN 207854114U CN 201820123263 U CN201820123263 U CN 201820123263U CN 207854114 U CN207854114 U CN 207854114U
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- change
- voice
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- switching switch
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Abstract
A kind of change of voice earphone, including：Power amplifier module, change of voice switching switch, the Audio Input Modules being connected with change of voice switching switch and change sound module；Audio Input Modules include：Microphone and the audio input port that digital terminal can be docked, and microphone is connected with change of voice switching switch respectively with audio input port；It includes several change sound chips to become sound module, and several change sound chips switch switch with the change of voice respectively and are connected so that change of voice switching switch can select to start one of change sound chip；All change sound chips are all connected with the power amplifier module for playing audio.The utility model can voluntarily be handled audio, need not rely on the electronic equipments such as computer, other voice transmissions that the sound of input is become to user's needs by change sound chip come out, and allow other people can not listen the primary sound of user, can become male voice, schoolgirl, sound of making fun etc..
Description
Technical field
The utility model is related to audio-frequence player device field, especially a kind of change of voice earphone.
Background technology
Earphone uses extensive audio to play by feat of using advantage easy to carry, that sound quality is good, suitability is strong to become
Equipment, currently, many earphones constantly derivative new function on the basis of traditional function, such as have the call ear that can be conversed
Machine, portable bluetooth headset etc., most basic is the sound quality of guarantee earphone, but in some special application environments, people
The sound not necessarily restored completely that needs to hear, novel interesting different experience can be obtained to modify by being done to audio,
Such as male voice is converted into female voice or child's voice, in the protection to privacy in the case of also having, needs to do specially treated, mesh to sound
Before, these are required for greatly dependence computer to handle the processing of audio, this just significantly limits being applicable in for the audio change of voice
Range is listened to change sound audio and be cannot achieve for some without the mobile terminal of change of voice function.In addition, doing the change of voice
Before processing, primary sound can also be stored, and can be found primary sound by some simple technological means, is unfavorable for privacy of user
Protection.
Utility model content
According to the above-mentioned problems of the prior art, the utility model provides a kind of change of voice earphone, not only becomes sound effective value
It is good, applied widely, and the privacy of user will not be revealed, it is specific as follows.
A kind of change of voice earphone, including：Power amplifier module, change of voice switching switch, the audio input being connected with change of voice switching switch
Module and change sound module.
Audio Input Modules include：Microphone and the audio input port that digital terminal can be docked, and microphone with
Audio input port is connected with change of voice switching switch respectively.
It includes several change sound chips to become sound module, and several change sound chips switch switch phase with the change of voice respectively
Even so that change of voice switching switch can select to start one of change sound chip.
All change sound chips are all connected with the power amplifier module for playing audio.
Further, Audio Input Modules include：Microphone, signal amplification circuit, analog-to-digital conversion module, and Mike
Wind, signal amplification circuit, analog-to-digital conversion module, change of voice switching switch are sequentially connected.
Further, signal amplification circuit is LM386 chips.
Further, change of voice switching switch is relay switch or rotary switch.
Further, become sound module and be also connected with the audio output port that can dock digital terminal.
Further, change of voice earphone further includes D/A converter module, becomes sound module and passes through D/A converter module and power amplifier mould
Block is connected.
Further, become sound chip into：Turn low baseband chip, turns high baseband chip, turns one kind in superelevation baseband chip
Or it is several.
Further, low baseband chip, turn high baseband chip, to turn superelevation baseband chip be RTS0072B chips.
Further, become sound chip and be connected with digital signal processor.
Further, change of voice earphone further includes shell, becomes sound module, signal amplification circuit, analog-to-digital conversion module, digital-to-analogue and turns
Mold changing block is respectively positioned in shell.
The utility model has the advantages that：
1. this product can not only play audio, itself can also be handled audio, need not rely on the electricity such as computer
Sub- equipment carries out conversion process, specifically, the sound of input is become other voice transmissions that client needs by becoming sound chip
Out, it allows other people can not listen the primary sound of user, male voice, schoolgirl, sound of making fun etc. can be become.
2. prestore audio in digital signal processor, the effect of the sound addition reverberation of the change of voice can be given, allows user
There is better experience.
3. this product is equipped with microphone, it can speak the real-time change of voice in user, will not leave behind primary sound, be effectively guaranteed
The personal secrets of user.
It is switched 4. user can actively be switched by the change of voice to select to carry out sound different variations, easy to operate, choosing
Selecting property is more.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the system block diagram of the utility model.
Fig. 2 is the structure chart of one of which change of voice switching switch.
Specific implementation mode
It, below will be to the technology of the utility model to keep the purpose of this utility model, technical solution and advantage clearer
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
A kind of change of voice earphone as shown in Figure 1, structure are roughly divided into three parts on the whole：Audio signal it is defeated
Enter, the conversion of signal and the output of audio signal.
One, the input of audio signal, i.e. the change acoustic target of user, normal conditions include directly being passed from terminals such as PC, mobile phones
The digital signal or live sound come form treated digital signal by conversion, and therefore, the utility model is equally set
There are two sources of sound：Audio input port, the microphone of electronic equipment can be docked, both sound can be passed to change acoustic mode
Block.
For microphone due to structure and function itself, obtained signal is the analog signal relatively obscured, is needed by signal
The enhanced processing of amplifying circuit/signal amplifier, also wanting the processing of analog-to-digital conversion module/converter to convert analog signals into can
With by the digital signal of change of voice resume module and storage.The basic principle of microphone is exactly electricity container as between acoustoelectric signal
Converter.The variation for the sound dynamics that this capacitance can be experienced there are one place promotes the signal of sound that can succeed other
It receives.He is usually made of a kind of metal film, forms the distance of a memory to change another pole of capacitor.When
When experiencing the dynamics of sound, frequency, the intensity of vibration of vibrations, the vibration of diaphragm are all to have instantaneous sound pressure to determine, electricity
Hold corresponding with the variation of acoustical signal.If this time enables this capacitance that there is a constant voltage, capacitance to become again
Change will make capacitor polarize, and change the quantity of electric charge, and generate electric signal in the capacitor at both ends, acoustoelectric signal is converted.
Two, the conversion of signal, this be also modify sound main part, principle be by the tone of sound also have tone color into
The dual transformation of row, to reach the variation of sound output.Change formant frequency on the basis of resampling to reach.
In resampling principle it is known that it simultaneously also fundamental frequency has been promoted to be changed, in order to allow fundamental frequency transformation and formant
Transformation between frequency can be mutual indepedent, is associated with without what.When base band moves, it should be noted that offset resampling and cause
Some deviation.Theoretically, as long as the detection of sound is really accurate, it is sufficient to ensure the change of audio frequency and the variation of formant frequency
Between there is no what association.Frequency changer circuit may be used on hardware to realize the change of voice, can also use and be arranged in microcontroller
Corresponding program carries out the change of voice.
Three, the output of audio signal, the audio signal by voice change process need to send corresponding equipment or sheet to
Ground plays, and can also store, and can play repeatedly.Local play needs to complete by power amplifier module, also
It is the part that ear is inserted into earphone, common power amplifier module includes：Moving-iron type：Electromagnet generates not under the action of electric signal
It is an iron plate with the magnetic field of degree, before electromagnet, vibrations is generated under the action of changing magnetic field；The mouthpiece of early stage
It is exactly this mode, but as the development of technology in recent years, audio are promoted fine, is common in middle and high end earphone, also, every
In a earphone, generating unit is all multiple, for handling the sound of different frequency.Moving-coil type：Enameled wire loop is fixed on vibrating diaphragm
On, permanent magnet is placed below, electric signal generates the magnetic field of varying strength, because permanent magnet is fixed, institute when passing through enameled wire
Vibrating diaphragm vibrations are driven with enameled wire loop.For the power amplifier module of the above-mentioned type, it is also necessary to by the audio handled well by digital signal
Analog signal is converted to, this part has the completion of digital and analogue signals converter.
Based on the above, present embodiment discloses structures in detail below：
A kind of change of voice earphone, including：Power amplifier module, change of voice switching switch, the audio input being connected with change of voice switching switch
Module and change sound module.Audio Input Modules include：Microphone and the audio input port that digital terminal can be docked, and wheat
Gram wind is connected with change of voice switching switch respectively with audio input port.It includes several change sound chips to become sound module, and described
Several change sound chips are connected with change of voice switching switch respectively so that change of voice switching switch can select to start one of change of voice core
Piece.All change sound chips are all connected with the power amplifier module for playing audio.
Further, Audio Input Modules include：Microphone, signal amplification circuit, analog-to-digital conversion module, and Mike
Wind, signal amplification circuit, analog-to-digital conversion module, change of voice switching switch are sequentially connected.
Further, signal amplification circuit is LM386 chips, and similar with universal integrated transporting discharging, it is a three-level
Amplifying circuit.The first order is differential amplifier circuit, and T1 and T3, T2 and T4 respectively constitute multiple tube, as differential amplifier circuit
Amplifier tube；Active load of the T5 and T6 composition mirror current sources as T1 and T2；T3 and T4 signals are inputted from the base stage of pipe, from T2
The collector of pipe exports, and is double-width grinding Single-end output difference channel.It is active using mirror current source as differential amplifier circuit
Load, can make the gain of Single-end output circuit be approximately equal to the gain of both-end output capacitance.The second level is total radio amplifier, T7
For amplifier tube, constant-current source makees active load, to increase amplification factor.T8 and T9 pipes in the third level are combined into positive-negative-positive pipe, with
NPN type pipe T10 constitutes quasi- complementary output grade.Diode D1 and D2 provides suitable bias voltage for output stage, can eliminate friendship
More it is distorted.
Further, change of voice switching switch is relay switch or rotary switch.
Further, become sound module and be also connected with the audio output port that can dock digital terminal.That common includes USB
2.0,3.0 interfaces of USB etc..
Further, change of voice earphone further includes D/A converter module, becomes sound module and passes through D/A converter module and power amplifier mould
Block is connected.
Further, become sound chip into：Turn low baseband chip, turns high baseband chip, turns one kind in superelevation baseband chip
Or it is several.
Further, low baseband chip, turn high baseband chip, to turn superelevation baseband chip be RTS0072B chips, each to become
Different audios may be implemented in different programs in sound chip.A kind of voice conversion of single chip CMOS VLSI Design
IC, it by sound transposition or can be transformed into another sound, be carried out by the voice signal for the normal speed that will be inputted non-
The code conversion of normal speed, this is digital signal to be converted into after sampling by input audio signal, and recombinate number signal to produce
Raw different sound.
Further, become sound chip be connected with digital signal processor, can by the audio-frequency information handled store so as to
Loop play.
Further, change of voice earphone further includes shell, becomes sound module, signal amplification circuit, analog-to-digital conversion module, digital-to-analogue and turns
Mold changing block is respectively positioned in shell.Shell plays the protective effect to internal circuit and electric elements, while but also product more
Beautiful, promotion use feeling.
Utility model works principle is as follows：First, according to different user demands, selection transmission digital audio and video signals or
Person's live recording is after the completion handled audio signal transmission to sound chip is become, wherein user can be switched by the change of voice to open
The effect that control is specifically wanted is closed, is played finally by power amplifying device, or be transferred directly to interfaced electronic equipment,
Loop play can be stored.
Embodiment two
As depicted in figs. 1 and 2, the utility model is used based on the structure for becoming sound chip, each to become the storage of sound chip memory
Have different computer programs, these computer programs can realize the change of voice by the processing to digital signal, but for cost,
The considerations of technique etc., one becomes sound chip and is difficult to meet a variety of different change of voice demands, so the utility model uses
Change of voice switching switch can automatically switch institute's change sound chip to be used for user.The structure of the change of voice switching switch is more
Kind is various, may be used by monolithic processor controlled relay construction, after choosing the change sound chip of needs, electricity where the chip
The corresponding relay coil in road is powered to forming electromagnet, adsorbs corresponding circuit so that the chip obtains electric and receives source sound letter
Number carry out voice change process.Another change of voice switching switch as shown in Figure 2, appearance is knob, is internally provided with connection strap o, four
A change sound chip corresponding interface a, b, c, d for realizing different audios, when connection strap o is docked with one of interface, the interface
Corresponding change sound chip connects and works, and user can be adjusted with turn knob.The change that other use the prior art except processing
Sound switching switch is not listed one by one herein, but belongs in the range of the utility model discloses and protect.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replace, it should be covered within the scope of the utility model.
Claims (10)
1. a kind of change of voice earphone, which is characterized in that including：Power amplifier module, change of voice switching switch switch what switch was connected with the change of voice
Audio Input Modules and change sound module；
Audio Input Modules include：Microphone and the audio input port that digital terminal can be docked, and microphone and audio
Input port is connected with change of voice switching switch respectively；
It includes several change sound chips to become sound module, and several change sound chips are connected with change of voice switching switch respectively, make
Obtaining change of voice switching switch can select to start one of change sound chip；
All change sound chips are all connected with the power amplifier module for playing audio.
2. a kind of change of voice earphone according to claim 1, which is characterized in that Audio Input Modules include：Microphone, signal
Amplifying circuit, analog-to-digital conversion module, and microphone, signal amplification circuit, analog-to-digital conversion module, change of voice switching switch phase successively
Even.
3. a kind of change of voice earphone according to claim 2, which is characterized in that signal amplification circuit is LM386 chips.
4. a kind of change of voice earphone according to claim 3, which is characterized in that the change of voice switching switch be relay switch or
Rotary switch.
5. a kind of change of voice earphone according to claim 4, which is characterized in that change sound module, which is also connected with, can dock number eventually
The audio output port at end.
6. a kind of change of voice earphone according to claim 5, which is characterized in that change of voice earphone further includes D/A converter module,
Become sound module by D/A converter module to be connected with power amplifier module.
7. a kind of change of voice earphone according to claim 6, which is characterized in that become sound chip into：Turn low baseband chip, turn height
Baseband chip one or more of turns superelevation baseband chip.
8. a kind of change of voice earphone according to claim 7, which is characterized in that low baseband chip turns high baseband chip, turns super
High baseband chip is RTS0072B chips.
9. a kind of change of voice earphone according to claim 8, which is characterized in that become sound chip and be connected with digital signal storage
Device.
10. a kind of change of voice earphone according to claim 9, which is characterized in that change of voice earphone further includes shell, becomes acoustic mode
Block, signal amplification circuit, analog-to-digital conversion module, D/A converter module are respectively positioned in shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820123263.5U CN207854114U (en) | 2018-01-24 | 2018-01-24 | A kind of change of voice earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820123263.5U CN207854114U (en) | 2018-01-24 | 2018-01-24 | A kind of change of voice earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207854114U true CN207854114U (en) | 2018-09-11 |
Family
ID=63412634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820123263.5U Expired - Fee Related CN207854114U (en) | 2018-01-24 | 2018-01-24 | A kind of change of voice earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207854114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381408A (en) * | 2019-08-12 | 2019-10-25 | 深圳市探寻信息技术有限公司 | K sings earphone |
-
2018
- 2018-01-24 CN CN201820123263.5U patent/CN207854114U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110381408A (en) * | 2019-08-12 | 2019-10-25 | 深圳市探寻信息技术有限公司 | K sings earphone |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 |