CN207304841U - A kind of digital earphone - Google Patents

A kind of digital earphone Download PDF

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Publication number
CN207304841U
CN207304841U CN201721133048.5U CN201721133048U CN207304841U CN 207304841 U CN207304841 U CN 207304841U CN 201721133048 U CN201721133048 U CN 201721133048U CN 207304841 U CN207304841 U CN 207304841U
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signal
noise reduction
terminal
mike
output terminal
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CN201721133048.5U
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Chinese (zh)
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蔡焱
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Shuo Taihua Science And Technology Ltd Of Shenzhen
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Shuo Taihua Science And Technology Ltd Of Shenzhen
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Priority claimed from PCT/CN2018/103944 external-priority patent/WO2019042459A1/en
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Abstract

The utility model embodiment discloses a kind of digital earphone, including Audio Input Modules, microprocessor, digital signal processor and dio Output Modules;Audio Input Modules include main Mike and include noise reduction unit from Mike, digital signal processor;The output terminal of main Mike and output terminal from Mike are connected with the input terminal of noise reduction unit, and the control terminal of noise reduction unit and the output terminal of microprocessor connect, and the output terminal of noise reduction unit is connected with dio Output Modules.The digital earphone uses master and slave two groups of Mikes, microprocessor controls noise reduction unit to generate corresponding de-noising signal according to the second environment noise signal obtained from Mike after noise reduction order input by user is received, and noise reduction process is carried out to the first voice signal acquired in main Mike by de-noising signal, it ensure that the fidelity of the first voice signal of user in the first voice signal, the tonequality of output signal improved in the case where the first voice signal for avoiding user is damaged.

Description

A kind of digital earphone
Technical field
The utility model embodiment is related to digital earphone technical field, more particularly to a kind of digital earphone.
Background technology
Digital earphone is exactly using the earphone of digital interface design, for example with the Lightning interfaces or peace of iPHone The earphone of the designs such as the Micro USB interfaces of Zhuo Shouji, digital earphone carry DAC and amplifier, can play superelevation code check Lossless music, and mobile phone is only intended to do digital signal output and power supply.
Digital earphone of the prior art only has a microphone, and the voice signal of noise signal and user are from a wheat The input of gram wind, is also damaged the sound signal quality of user during noise reduction process is carried out to noise.
Therefore, how to provide a kind of digital earphone for solving above-mentioned technical problem needs at present as those skilled in the art Solve the problems, such as.
Utility model content
The purpose of the utility model embodiment is to provide a kind of digital earphone, and the first voice signal is ensure that during use The fidelity of the first voice signal of middle user, output letter is improved in the case where the first voice signal for avoiding user is damaged Number tonequality.
In order to solve the above technical problems, the utility model embodiment provides a kind of digital earphone, including audio input mould Block, microprocessor, digital signal processor and dio Output Modules;The Audio Input Modules include main Mike and from Mikes, The digital signal processor includes noise reduction unit, the output terminal and the output terminal from Mike of the main Mike with it is described The input terminal connection of noise reduction unit, the control terminal of the noise reduction unit are connected with the output terminal of the microprocessor, the noise reduction The output terminal of unit is connected with the dio Output Modules;
The main Mike, for receiving the first voice signal, the first voice that first voice signal includes user is believed Number and first environment noise signal;It is described from Mike, for obtaining second sound signal, the second sound signal includes second Ambient noise signal;The microprocessor, for being communicated by USB Audio agreements with terminal device, and according to user The noise reduction order generation noise reduction control instruction of input;The noise reduction unit, after receiving the noise reduction control instruction, to described Second environment noise signal is analyzed and processed to obtain noise reduction identical with the second environment noise signal amplitude, opposite in phase Signal, and the de-noising signal and the first environment noise signal are offset, obtain the first voice signal after noise reduction; The dio Output Modules, for the first voice signal after the noise reduction to be exported.
Optionally, the digital signal processor further includes reverberation unit and mixed cell, and the Audio Input Modules are also Including audio acquiring unit;The input terminal of the reverberation unit is connected with the output terminal of the noise reduction unit, its control terminal and institute The output terminal connection of microprocessor is stated, its output terminal is connected with the first input end of the mixed cell;The mixed cell Second input terminal is connected with the output terminal of the audio acquiring unit, its control terminal is connected with the output terminal of the microprocessor, Its output terminal is connected with the dio Output Modules;The input terminal of the audio acquiring unit and the output terminal of the terminal device Connection;
The microprocessor, is additionally operable to refer to according to Karaoke open command generation reverberation instruction input by user and mixing Order;The reverberation unit, for carrying out Karaoke reverberation to the first voice signal after noise reduction according to reverberation instruction, obtains Reverberant sound signals;The audio acquiring unit, for obtaining the music signal of terminal device output;The mixed cell, is used In the reverberant sound signals and the music signal are carried out according to the mixed instruction to be mixed to get voice accompaniment compound voice Sound signal;The dio Output Modules, are additionally operable to be exported voice accompaniment mixing voice signal.
Optionally, acquisition rate acquisition module and adjustment module, the input terminal of the acquisition rate acquisition module and institute are further included The output terminal connection of terminal device is stated, its output terminal is connected with the input terminal of the adjustment module;The output of the adjustment module End is connected with the input terminal of the microprocessor;
The acquisition rate acquisition module, the music digit signal acquisition for being exported according to the terminal device are adopted accordingly Sample rate;The adjustment module, for according to the USB Audio agreements and sample rate generation frequency adjust instruction;It is described Microprocessor, is additionally operable to be adjusted correspondingly the working frequency of itself according to the frequency adjust instruction.
Optionally, digital earphone as described above, the main Mike are multiple, and multiple main Mikes form Mike's battle array Row.
Optionally, it is described from Mike to be multiple, it is multiple described from Mike's dispersed distribution.
The utility model embodiment provides a kind of digital earphone, including Audio Input Modules, microprocessor, digital signal Processor and dio Output Modules;Audio Input Modules include main Mike and include noise reduction list from Mike, digital signal processor Member;The output terminal of main Mike and output terminal from Mike are connected with the input terminal of noise reduction unit, the control terminal of noise reduction unit with The output terminal connection of microprocessor, the output terminal of noise reduction unit are connected with dio Output Modules;Main Mike, for receiving the first sound Sound signal, the first voice signal include the first voice signal and first environment noise signal of user;From Mike, for obtaining the Two voice signals, second sound signal include second environment noise signal;Microprocessor, for by USB Audio agreements with Terminal device communicates, and generates noise reduction control instruction according to noise reduction order input by user;Noise reduction unit, drops for receiving After control instruction of making an uproar, second environment noise signal is analyzed and processed to obtain, phase identical with second environment noise signal amplitude The opposite de-noising signal in position, and de-noising signal and first environment noise signal are offset, obtain the first sound after noise reduction Signal;Dio Output Modules, for the first voice signal after noise reduction to be exported.
Digital earphone in the utility model embodiment uses master and slave two groups of Mikes, and microprocessor is defeated when receiving user The noise reduction unit in data signal processor is then controlled after the noise reduction order entered according to from the second sound signal that Mike obtains Second environment noise signal generate corresponding de-noising signal, and by de-noising signal in the voice signal acquired in main Mike First environment noise signal offset, with to the first voice signal carry out noise reduction process, it is ensured that in the first voice signal The fidelity of the first voice signal of user, output signal is improved in the case where the first voice signal for avoiding user is damaged Tonequality.
Brief description of the drawings
, below will be to the prior art and embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Needed in attached drawing be briefly described, it should be apparent that, drawings in the following description are only the utility model Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this A little attached drawings obtain other attached drawings.
Fig. 1 is a kind of principle schematic for digital earphone that the utility model embodiment provides;
Fig. 2 is the principle schematic for another digital earphone that the utility model embodiment provides.
Embodiment
The utility model embodiment provides a kind of digital earphone, ensure that used in the first voice signal in use The fidelity of first voice signal at family, output signal is improved in the case where the first voice signal for avoiding user is damaged Tonequality.
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, those of ordinary skill in the art's all other embodiments obtained without making creative work, belongs to The scope of the utility model protection.
Fig. 1 is refer to, Fig. 1 is a kind of principle schematic for digital earphone that the utility model embodiment provides.
The digital earphone includes Audio Input Modules 1, microprocessor 2, digital signal processor 3 and dio Output Modules 4; Audio Input Modules 1 include main Mike 11 and include noise reduction unit 31 from Mike 12, digital signal processor 3;Main Mike's 11 Output terminal and input terminal of the output terminal with noise reduction unit 31 from Mike 12 are connected, the control terminal and microprocessor of noise reduction unit 31 The output terminal connection of device 2, the output terminal of noise reduction unit 31 are connected with dio Output Modules 4;
Main Mike 11, for receiving the first voice signal, the first voice signal includes the first voice signal and the of user One ambient noise signal;
From Mike 12, for obtaining second sound signal, second sound signal includes using second environment noise signal;
Microprocessor 2, for being communicated by USB Audio agreements with terminal device, and according to drop input by user Order of making an uproar generates noise reduction control instruction;
Noise reduction unit 31, after receiving noise reduction control instruction, is analyzed and processed to obtain to second environment noise signal De-noising signal identical with second environment noise signal amplitude, opposite in phase, and by de-noising signal and first environment noise signal Offset, obtain the first voice signal after noise reduction;
Dio Output Modules 4, for the first voice signal after noise reduction to be exported.
It should be noted that the main Mike 11 in the digital earphone that the application provides is arranged on the position nearer from user's mouth Put, in order to the clearly user voice signal obtained when users use, acquired in main Mike 11 in use In one voice signal based on the first voice signal of user, also include certain first environment noise signal certainly;From Mike 12 are arranged on the other positions (from user's mouth remote position) of digital earphone, when in use acquired second sound signal In mainly include second environment noise signal, certain user's second language signal may also be included certainly, wherein, the first sound Signal and second sound signal in synchronization obtain for main Mike 11 and from Mike 12, due to main Mike 11 be arranged on from The nearer position of family mouth, the other positions of earphone are arranged on from Mike 12, so acquired in the main Mike 11 of synchronization The intensity of first language signal should be more than from the second language signal acquired in Mike 12.
After the noise reduction order that user assigns is received, and microprocessor 2 (i.e. MCU (Micro Controller Unit, it is micro- Control unit)) generation noise reduction control instruction control digital signal processor 3 (i.e. DSP (Digital Signal Processing noise reduction unit 31 in)) is by way of active noise reduction to main Mike 11 and from the sound acquired in Mike 12 After signal is analyzed and processed, by generating, phase identical with the amplitude from the second environment noise signal acquired in Mike 12 Opposite de-noising signal, and offset the first environment noise signal acquired in main Mike 11 using the de-noising signal, So as to reduce or eliminate first language of the first environment noise signal in the first voice signal acquired in main Mike 11 to user The influence of sound signal, becomes apparent from sound of the user in call or singing, wherein, due to from acquired in Mike 12 In two voice signals based on ambient noise signal, it is possible to using second environment noise signal as according to in main Mike 11 First environment noise signal carry out noise reduction process, so as to avoid making the first language signal that main Mike 11 obtains from being damaged.
It should be noted that user can assign noise reduction order by the noise reduction switch on the line control machine of earphone, will drop Switch of making an uproar is opened, and microprocessor 2 can receive noise reduction order input by user, or be assigned by way of language in-put Noise reduction order.
Specifically, can be by digital interface and terminal device in the digital earphone that the utility model embodiment is provided (such as mobile phone, tablet computer etc.) connects, and digital interface can be Lighting interfaces, USB Micro interfaces or USB Trpe C interface, specifically using what interface can depending on specific terminal device, such as can by Lighting interfaces with IPhone mobile phones connection etc..
In addition, the microprocessor 2 in digital earphone is communicated by USB Audio agreements with terminal device, wherein, USB Audio agreements can be 1.0 agreements of USB Audio Class, USB Audio Class 2.0 or USB Audio 3.0 agreements of Class, and USB Audio Class 2.0 or 3.0 agreements of USB Audio Class can be largely The upper compatibility improved between digital earphone and terminal device.Certainly, in practical applications specifically can root using which kind of agreement Depending on actual conditions, the utility model embodiment does not do this special restriction.
In practical applications, microprocessor 2 in the utility model embodiment can use ARM frameworks, super low-power consumption MCU, be primarily due to ARM frameworks, super low-power consumption MCU disposal ability it is stronger, and can support up to 24bit/ The broadcasting of the high-quality of 192Khz sample rates/lossless music.Digital signal processor 3 in the utility model embodiment then can be with Using the digital signal processor 3 of 32 floating-point low-power consumption.Certainly, specifically using 3 realities of which kind of MCU and digital signal processor Do not make special restriction to this with new embodiment, can realize the purpose of the utility model embodiment.
It should also be noted that, main Mike 11 in the digital earphone that the utility model embodiment is provided and from Mike 12 Quantity all can be one or more, particular number can depending on actual conditions, guarantee obtain high-quality sound letter Number while using less main Mike 11 and from Mike 12, further to reduce the power consumption of microprocessor 2.
The utility model embodiment provides a kind of digital earphone, including Audio Input Modules, microprocessor, digital signal Processor and dio Output Modules;Audio Input Modules include main Mike and include noise reduction list from Mike, digital signal processor Member;The output terminal of main Mike and output terminal from Mike are connected with the input terminal of noise reduction unit, the control terminal of noise reduction unit with The output terminal connection of microprocessor, the output terminal of noise reduction unit are connected with dio Output Modules;Main Mike, for receiving the first sound Sound signal, the first voice signal include the first voice signal and first environment noise signal of user;From Mike, for obtaining the Two voice signals, second sound signal include second environment noise signal;Microprocessor, for by USB Audio agreements with Terminal device communicates, and generates noise reduction control instruction according to noise reduction order input by user;Noise reduction unit, drops for receiving After control instruction of making an uproar, second environment noise signal is analyzed and processed to obtain, phase identical with second environment noise signal amplitude The opposite de-noising signal in position, and de-noising signal and first environment noise signal are offset, obtain the first sound after noise reduction Signal;Dio Output Modules, for the first voice signal after noise reduction to be exported.
Digital earphone in the utility model embodiment uses master and slave two groups of Mikes, and microprocessor is defeated when receiving user The noise reduction unit in data signal processor is then controlled after the noise reduction order entered according to from the second sound signal that Mike obtains Second environment noise signal generate corresponding de-noising signal, and by de-noising signal in the voice signal acquired in main Mike First environment noise signal offset, with to the first voice signal carry out noise reduction process, it is ensured that in the first voice signal The fidelity of the first voice signal of user, output signal is improved in the case where the first voice signal for avoiding user is damaged Tonequality.
The utility model embodiment discloses a kind of digital earphone, and relative to a upper embodiment, the present embodiment is to technical side Case has made further instruction and optimization.Specific to refer to Fig. 2, Fig. 2 is the another kind numeral that the utility model embodiment provides The principle schematic of earphone.
It should be noted that user using digital earphone in addition to being conversed, it is also possible to needs to use digital earphone Listen to music or sing karaoke, in order to better meet user demand, further, above-mentioned first language signal can be song Signal;Digital signal processor 3 further includes reverberation unit 32 and mixed cell 33, and Audio Input Modules 1 further include audio acquisition Unit 13;The input terminal of reverberation unit 32 is connected with the output terminal of noise reduction unit 31, its control terminal and the output terminal of microprocessor 2 Connection, its output terminal are connected with the first input end of mixed cell 33;Second input terminal of mixed cell 33 obtains single with audio The output terminal connection of member 13, its control terminal are connected with the output terminal of microprocessor 2, its output terminal is connected with dio Output Modules 4; The input terminal of audio acquiring unit 13 and the output terminal of terminal device connect;
Specifically, microprocessor 2, is additionally operable to according to Karaoke open command generation reverberation instruction input by user and mixing Instruction;Reverberation unit 32, for playing Karaoka according to reverberation instruction to the first voice signal (i.e. singing voice signals) after noise reduction Reverberation, obtains reverberant sound signals;Audio acquiring unit 13, for obtaining the music signal of terminal device output;Mixed cell 33, mix voice signal for carrying out being mixed to get voice accompanying by reverberant sound signals and music signal according to mixed instruction; Dio Output Modules 4, are additionally operable to be exported voice accompaniment mixing voice signal.
Specifically, digital earphone can be connected by digital interface with terminal device, can when user wants sing karaoke To pass through line control machine or software (or voice) input Karaoke open command, and by Audio Input Modules 1 manually Audio acquiring unit 13 obtains the music signal (being specially audio accompaniment signal) of terminal device (such as mobile phone) output, passes through numeral Singing voice signals after noise reduction process and Karaoke are carried out reverberation by the reverberation unit 32 in signal processor 3, then single by mixing Member 33 is mixed the singing voice signals (i.e. reverberant sound signals) after reverberation with acquired audio accompaniment signal, you can is obtained Singing voice signals more good, with Karaoke and accompaniment music, it is by dio Output Modules 4 that voice signal progress is defeated Go out to can be used family to hear the song (song as with Karaoke and accompaniment music) of oneself, and
It should be noted that the mixed cell 33 in the utility model can specifically use voice accompaniment audio mixing power amplifier Realize, and in the specific implementation, the song of user can by being converted to digital signal after the sound pick-up pickup on earphone, and The digital signal and corresponding karaoke signal are carried out by reverberation by reverberation unit 32, then will by corresponding mixed cell 33 After digital signal after reverberation is mixed with audio accompaniment signal (corresponding digital signal), user can be pleasant to the ear from earphone To the mixed effect sung and accompanied of oneself, it is, of course, also possible to which the mixed digital data transmission that will sing and accompany is to phase The terminal device answered, and the operation for being preserved or being uploaded by the terminal device.
As a specific embodiment, which further includes acquisition rate acquisition module and adjustment module, acquisition rate The input terminal of acquisition module and the output terminal of terminal device connect, its output terminal is connected with adjusting the input terminal of module;Adjust mould The output terminal of block is connected with the input terminal of microprocessor 2;Wherein:
Acquisition rate acquisition module, for the corresponding sample rate of music digit signal acquisition according to terminal device output;
Module is adjusted, for according to USB Audio agreements and sample rate generation frequency adjust instruction;
Microprocessor 2, is additionally operable to be adjusted correspondingly the working frequency of itself according to frequency adjust instruction.
It is understood that when user is listened to music using earphone, to the music of different sample rates, needed for microprocessor 2 The working frequency wanted can be different, but the working frequency of the microprocessor 2 employed in digital earphone of the prior art is Certain, it is impossible to it is adjusted according to the use rate of music, so the power consumption of microprocessor of the prior art 2 is higher.This reality It can be sampled by the music digit signal exported to terminal device with new embodiment, and exported according to terminal device The corresponding sample rate of music digit signal acquisition, and can according to USB Audio agreements and sample rate generation frequency adjustment refer to Order, so that microprocessor 2 is adjusted correspondingly the working frequency of itself according to the frequency adjust instruction.
Because can specifically pass through USB Audio Class between the digital earphone and mobile phone in the utility model embodiment 1.0th, 2.0 or 3.0 agreement is communicated, it is possible to based on the corresponding frequency adjust instruction of USB Audio protocol generations, into One step determines working status/frequency of MCU.In general, the working frequency of MCU can be changed step by step in units of 12MHz.
For example, when terminal device does not commence play out music (by taking mobile phone as an example), but the APP using earphone is needed in work When making, MCU can adjust working frequency to minimum working frequency (ratio according to corresponding frequency adjust instruction in digital earphone 12MHz in this way, about 1.2 milliamperes of power consumption);, then can root when the music that mobile phone plays is the sample rate using 16 bits/48KHz The corresponding frequency adjust instruction of generation obtained according to USB Audio agreements, is arranged at 24MHz, at this time by the working frequency of MCU About 2.4 milliamperes of the power consumption of MCU;, then can be according to corresponding when the music that mobile phone plays is the sample rate of 24 bits/96KHz Sample rate the working frequency of MCU is adjusted to 48MHz, MCU power consumptions accordingly rise to 4.8 milliamperes at this time;When what mobile phone played is During the lossless music of 24 bits/192KHz, then the working frequency of MCU can be raised again to 96MHz, MCU power consumptions reach at this time 9.6 milliamperes.
More specifically, digital earphone described above, main Mike 11 are multiple, and multiple main Mikes 11 form microphone array.
Optionally, it is multiple from 12 dispersed distribution of Mike from Mike 12 to be multiple.
It should be noted that the digital earphone in the application can set multiple main Mikes 11 and multiple from Mike 12, and And multiple main Mikes 11 form microphone array, the identification of user voice signal is improved by designing corresponding algorithm, so as to obtain Relatively sharp user voice signal is taken, it is multiple that different positions is separately positioned on from Mike 12, to make the rising tone of acquisition Ambient noise signal in sound signal is more comprehensive, further can be by setting the specific algorithm in digital signal processor 3 Each voice signal obtained from Mike 12 and each main Mike 11 is analyzed and processed, preferably to eliminate ambient noise Signal (such as voice signal of middle low frequency), so as to obtain more good user voice signal.
For example, 4 main Mikes 11 and 4 can be set certainly, to be not limited only to set from Mike 12 when can be embodied 4 main Mikes 11 and 4 are from Mike 12, and the quantity of main Mike 11 and quantity from Mike 12 are not necessarily identical, for tool Body uses several main Mikes 11 and can be depending on actual conditions from Mike 12, and the application does not do special restriction herein.
It should also be noted that, the main Mike 11 in the digital earphone that the utility model embodiment is provided can be with line traffic control Device is separately positioned, can not also be separately positioned, specifically can be depending on actual conditions.In addition, the utility model embodiment In digital earphone can take electricity from the terminal device that it is connected, according to USB Audio agreements, directly supply electricity to MCU and DSP, without external connection battery, to avoid using the charge-discharge circuit of complex and expensive, so as to reduce earphone cost, also improves whole The reliability of a numeral earphone system.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related part is said referring to method part It is bright.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant meaning Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that A little key elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged Except also there are other identical element in the process, method, article or apparatus that includes the element.
Professional further appreciates that, with reference to each exemplary unit of the embodiments described herein description And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and The interchangeability of software, generally describes each exemplary composition and step according to function in the above description.These Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical solution.Specialty Technical staff can realize described function to each specific application using distinct methods, but this realization should not Think to exceed the scope of the utility model.
Can directly it be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology In the storage medium of any other forms well known in field.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (5)

1. a kind of digital earphone, it is characterised in that including Audio Input Modules, microprocessor, digital signal processor and audio Output module;The Audio Input Modules include main Mike and include noise reduction unit from Mike, the digital signal processor;Institute State the input terminal of the output terminal and the output terminal from Mike of main Mike with the noise reduction unit to be connected, the noise reduction unit Control terminal be connected with the output terminal of the microprocessor, the output terminal of the noise reduction unit and the dio Output Modules connect Connect;
The main Mike, for receiving the first voice signal, first voice signal include user the first voice signal and First environment noise signal;It is described from Mike, for obtaining second sound signal, the second sound signal includes second environment Noise signal;The microprocessor, inputs for being communicated by USB Audio agreements with terminal device, and according to user Noise reduction order generation noise reduction control instruction;The noise reduction unit, after receiving the noise reduction control instruction, to described second Ambient noise signal is analyzed and processed to obtain identical with the second environment noise signal amplitude, opposite in phase noise reduction letter Number, and the de-noising signal and the first environment noise signal are offset, obtain the first voice signal after noise reduction;Institute Dio Output Modules are stated, for the first voice signal after the noise reduction to be exported.
2. digital earphone according to claim 1, it is characterised in that the digital signal processor further includes reverberation unit And mixed cell, the Audio Input Modules further include audio acquiring unit;The input terminal of the reverberation unit and the noise reduction The output terminal connection of unit, its control terminal are connected with the output terminal of the microprocessor, its output terminal and the mixed cell First input end connects;Second input terminal of the mixed cell is connected with the output terminal of the audio acquiring unit, it is controlled End is connected with the output terminal of the microprocessor, its output terminal is connected with the dio Output Modules;The audio acquiring unit Input terminal be connected with the output terminal of the terminal device;
The microprocessor, is additionally operable to according to Karaoke open command generation reverberation instruction input by user and mixed instruction;Institute Reverberation unit is stated, for carrying out Karaoke reverberation to the first voice signal after noise reduction according to reverberation instruction, obtains reverberation Voice signal;The audio acquiring unit, for obtaining the music signal of terminal device output;The mixed cell, for according to The reverberant sound signals and the music signal carried out according to the mixed instruction to be mixed to get voice accompaniment compound voice message Number;The dio Output Modules, are additionally operable to be exported voice accompaniment mixing voice signal.
3. digital earphone according to claim 2, it is characterised in that acquisition rate acquisition module and adjustment module are further included, The input terminal of the acquisition rate acquisition module is connected with the output terminal of the terminal device, its output terminal and the adjustment module Input terminal connects;The output terminal of the adjustment module is connected with the input terminal of the microprocessor;
The acquisition rate acquisition module, the music digit signal acquisition for being exported according to the terminal device sample accordingly Rate;The adjustment module, for according to the USB Audio agreements and sample rate generation frequency adjust instruction;It is described micro- Processor, is additionally operable to be adjusted correspondingly the working frequency of itself according to the frequency adjust instruction.
4. according to the digital earphone described in claim 1-3 any one, it is characterised in that the main Mike is multiple to be multiple The main Mike forms microphone array.
5. digital earphone according to claim 4, it is characterised in that it is described from Mike to be multiple, it is multiple described from Mike Dispersed distribution.
CN201721133048.5U 2017-09-04 2017-09-04 A kind of digital earphone Active CN207304841U (en)

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CN201721133048.5U CN207304841U (en) 2017-09-04 2017-09-04 A kind of digital earphone
PCT/CN2018/103944 WO2019042459A1 (en) 2017-09-04 2018-09-04 Digital headset

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108696785A (en) * 2018-07-24 2018-10-23 歌尔股份有限公司 More wheat noise cancelling headphones and method
WO2019042459A1 (en) * 2017-09-04 2019-03-07 深圳市硕泰华科技有限公司 Digital headset
CN109525918A (en) * 2018-11-10 2019-03-26 东莞市华睿电子科技有限公司 A kind of processing method that earpiece audio signal is shared

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019042459A1 (en) * 2017-09-04 2019-03-07 深圳市硕泰华科技有限公司 Digital headset
CN108696785A (en) * 2018-07-24 2018-10-23 歌尔股份有限公司 More wheat noise cancelling headphones and method
CN109525918A (en) * 2018-11-10 2019-03-26 东莞市华睿电子科技有限公司 A kind of processing method that earpiece audio signal is shared

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