CN109068215A - A kind of noise-reduction method of In-Ear Headphones, device and In-Ear Headphones - Google Patents
A kind of noise-reduction method of In-Ear Headphones, device and In-Ear Headphones Download PDFInfo
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- CN109068215A CN109068215A CN201810921956.3A CN201810921956A CN109068215A CN 109068215 A CN109068215 A CN 109068215A CN 201810921956 A CN201810921956 A CN 201810921956A CN 109068215 A CN109068215 A CN 109068215A
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- earphone
- voice signal
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- loudspeaker
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
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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
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
- H04R2201/105—Manufacture of mono- or stereophonic headphone components
Abstract
The invention discloses a kind of noise-reduction method of In-Ear Headphones, device and In-Ear Headphones, are related to sound pick up equipment technical field, for solving the noise reduction process of the multiple microphones of the prior art, required acoustical device, structure space and the excessive problem of algorithm requirements.This method comprises: obtaining the corresponding signal-to-noise ratio of voice signal of the microphone acquisition of the first earphone connection；Judge whether signal-to-noise ratio is lower than threshold value；If so, the voice signal according to the voice signal of the loudspeaker acquisition in the voice signal and the first earphone or the second earphone of microphone acquisition, after obtaining noise reduction；The present invention passes through the voice signal for the low-frequency range reversely picked up using the microphone of In-Ear Headphones, the noise reduction process in the case where single microphone to voice signal not only may be implemented, save acoustical device, structure space and algorithm requirements, the noise reduction process effect in the case where multiple microphones can also be further promoted, user experience is improved.
Description
Technical field
The present invention relates to sound pick up equipment technical field, in particular to a kind of noise-reduction method of In-Ear Headphones, device and enter
Aural headphone.
Background technique
With the raising that people require speech quality, noise reduction microphone (microphone) is at more and more earphones
Standard configuration.In the environment for having noise or wind, noise reduction microphone can be effectively reduced ambient noise, guarantee voice call quality.
In the prior art, the side for designing two or more microphone on earphone and cooperating respective algorithms is often used
Formula carries out noise reduction process to the voice signal picked up.But design two microphones often with product appearance, structure space
It contradicts.Even in the case where appearance allows, designing two microphones also can make structure design more complicated, increase and set
Meter and assembling difficulty, while having tied up the space of loudspeaker (speaker).Compared to single microphone, two microphones are used
Mean to increase acoustical device cost.Also, the position and distance due to two microphones will directly influence the drop of algorithm
It makes an uproar effect, the size for such as moving the wireless headset of bluetooth headset is typically small, and the distance between two microphones sometimes can not
Meet the requirement of algorithm.
Therefore, how in the case where single microphone, to voice signal carry out noise reduction process, save acoustical device,
Structure space and algorithm requirements improve user experience, are urgent problems now.
Summary of the invention
The object of the present invention is to provide a kind of noise-reduction method of In-Ear Headphones, device and In-Ear Headphones, with reversed benefit
With the loudspeaker of In-Ear Headphones, noise reduction process is carried out to voice signal, improves user experience.
In order to solve the above technical problems, the present invention provides a kind of noise-reduction method of In-Ear Headphones, comprising:
Obtain the corresponding signal-to-noise ratio of voice signal of the microphone acquisition of the first earphone connection；
Judge whether the signal-to-noise ratio is lower than threshold value；
If so, according to the loudspeaking in the voice signal and first earphone or the second earphone of microphone acquisition
The voice signal of device acquisition, the voice signal after obtaining noise reduction；Wherein, first earphone and second earphone is wired or nothing
Line connection.
Optionally, in the voice signal and first earphone or the second earphone according to microphone acquisition
The voice signal of loudspeaker acquisition, the voice signal after obtaining noise reduction, comprising:
If the loudspeaker in first earphone and second earphone utilizes described second in playing audio-fequency data
Earphone or the independent playing audio data of the first earphone, and it is corresponding according to the microphone acquisition voice signal with
And the voice signal of the loudspeaker acquisition in first earphone or the second earphone, the voice signal after obtaining noise reduction.
It is optionally, described to utilize second earphone or the independent playing audio data of the first earphone, comprising:
Improve the output gain of second earphone or first earphone in independent playing audio data.
Optionally, described to utilize second earphone or the independent playing audio data of the first earphone and corresponding
According to the microphone acquisition voice signal and first earphone or the second earphone in loudspeaker acquisition voice
Signal, the voice signal after obtaining noise reduction, comprising:
It is acquired using the independent playing audio data of the second earphone, and according to the loudspeaker in first earphone
Voice signal and the microphone acquisition voice signal, obtain noise reduction after voice signal.
Optionally, in the voice signal and first earphone or the second earphone according to microphone acquisition
Loudspeaker acquisition voice signal, obtain noise reduction after voice signal before, further includes:
Obtain the wear condition of first earphone and second earphone；
If first earphone and second earphone are wearing state, execute described according to microphone acquisition
Voice signal and first earphone or the second earphone in loudspeaker acquisition voice signal, obtain noise reduction after voice
The step of signal；
If first earphone is wearing state and second earphone is non-wearing state, according to first earphone
In loudspeaker acquisition voice signal and the microphone acquisition voice signal, obtain noise reduction after voice signal.
Optionally, in the voice signal and first earphone or the second earphone according to microphone acquisition
The voice signal of loudspeaker acquisition, the voice signal after obtaining noise reduction, comprising:
The low frequency signal in the voice signal of the microphone acquisition is removed, and by the first preset ratio to only comprising middle height
The voice signal of the microphone acquisition of frequency signal amplifies, and obtains the first voice signal；
By the second preset ratio in first earphone or second earphone loudspeaker acquisition voice signal into
Row amplification, obtains the second voice signal；
First voice signal and second voice signal are superimposed, the voice signal after obtaining noise reduction.
The present invention also provides a kind of denoising devices of In-Ear Headphones, comprising:
Signal-to-noise ratio obtains module, the corresponding noise of voice signal of the microphone acquisition for obtaining the connection of the first earphone
Than；
Judgment module, for judging whether the signal-to-noise ratio is lower than threshold value；
Noise reduction module, if being lower than the threshold value for the signal-to-noise ratio, the voice signal acquired according to the microphone
And the voice signal of the loudspeaker acquisition in first earphone or the second earphone, the voice signal after obtaining noise reduction；Wherein,
First earphone and the wired or wireless connection of the second earphone.
Optionally, the noise reduction module, comprising:
Independent broadcast unit, if playing audio number for the loudspeaker in first earphone and second earphone
According to, then second earphone or the independent playing audio data of the first earphone are utilized, and it is corresponding according to the Mike
The voice signal of loudspeaker acquisition in the voice signal of elegance collection and first earphone or the second earphone, after obtaining noise reduction
Voice signal.
Optionally, the noise reduction module, comprising:
Filter and amplification unit, the low frequency signal in voice signal for removing the microphone acquisition, and it is pre- by first
If the voice signal that ratio acquires the microphone for only including high frequency signal amplifies, the first voice signal is obtained；
Amplifying unit, for being acquired by the second preset ratio to the loudspeaker in first earphone or second earphone
Voice signal amplify, obtain the second voice signal；
Acquiring unit, for first voice signal and second voice signal to be superimposed, the language after obtaining noise reduction
Sound signal.
In addition, the present invention also provides a kind of In-Ear Headphones, comprising: loudspeaker, microphone, memory and processor；
Wherein, the memory is realized as above for storing computer program, when the processor is for executing the computer program
The step of stating the noise-reduction method of described in any item In-Ear Headphones.
The noise-reduction method of a kind of In-Ear Headphones provided by the present invention, comprising: obtain the microphone of the first earphone connection
The corresponding signal-to-noise ratio of the voice signal of acquisition；Judge whether signal-to-noise ratio is lower than threshold value；If so, the voice acquired according to microphone
The voice signal of loudspeaker acquisition in signal and the first earphone or the second earphone, the voice signal after obtaining noise reduction；Wherein,
First earphone and the wired or wireless connection of the second earphone；
As it can be seen that the present invention passes through the loudspeaking in the voice signal and the first earphone that acquire according to microphone or the second earphone
The low frequency that the microphone of In-Ear Headphones picks up reversely is utilized in the voice signal of device acquisition, the voice signal after obtaining noise reduction
The noise reduction process in the case where single microphone to voice signal not only may be implemented in the voice signal of section, save acoustical device,
Structure space and algorithm requirements can also further promote the noise reduction process effect in the case where multiple microphones, improve
User experience.In addition, the present invention also provides a kind of denoising device of In-Ear Headphones and In-Ear Headphones, equally have above-mentioned
Beneficial effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart of the noise-reduction method of In-Ear Headphones provided by the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of existing dynamic speaker；
Fig. 3 is the flow chart of the noise-reduction method of another kind In-Ear Headphones provided by the embodiment of the present invention；
Fig. 4 is a kind of structure chart of the denoising device of In-Ear Headphones provided by the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is a kind of flow chart of the noise-reduction method of In-Ear Headphones provided by the embodiment of the present invention.
This method may include:
Step 101: obtaining the corresponding signal-to-noise ratio of voice signal of the microphone acquisition of the first earphone connection.
It is understood that the noise-reduction method of In-Ear Headphones provided by the present embodiment, can be In-Ear first
The method that earphone itself carries out noise reduction to the voice signal of the microphone acquisition of connection, that is to say, that such as single-chip microcontroller in the first earphone
Processor method provided by this implementations may be implemented when executing corresponding computer program, i.e., provided by the present embodiment just
The executing subject of method can be the processor in the first earphone such as single-chip microcontroller；Or if the terminal of mobile phone is to paired company
The method that the voice signal of the microphone acquisition of the first earphone connection connect carries out noise reduction, that is to say, that match and connect with the first earphone
Method provided by this implementation, i.e. the present embodiment may be implemented when executing corresponding computer program in processor in the terminal connect
The processor in terminal that the executing subject of provided method can be and the pairing of the first earphone connects.The present embodiment to this not
Do any restrictions.
It should be noted that being used when the microphone in this step can need to acquire voice data for In-Ear Headphones
Microphone, such as the microphone of existing the first earphone comprising wired connection and the second earphone moved in bluetooth headset, or
The only microphone in the wireless headset comprising the first earphone.It, can be by designer's root for the specific setting position of microphone
Scene and user demand self-setting are factually used, such as can be to be arranged on the ear handle of the first earphone, also can be set first
On the connecting line of earphone and the second earphone, as long as the voice signal of the available microphone acquisition of processor, the present embodiment
Any restrictions are not done to this.Likewise, the particular number of the microphone in the present embodiment, it can be by designer according to practical field
Scape and user demand self-setting can be set to a wheat such as in order to save acoustical device, structure space and algorithm requirements
Gram wind, in order to which better noise reduction effect may be set to be two or more, the present embodiment does not do any restrictions equally to this.
Specifically, the voice signal for obtaining the microphone acquisition of the first earphone connection for processor in this step is corresponding
The concrete mode of signal-to-noise ratio can such as use and show by designer according to practical scene and user demand self-setting
There is the same or similar mode of technology to be arranged, the present embodiment does not do any restrictions to this.
Step 102: judging whether signal-to-noise ratio is lower than threshold value；If so, entering step 103.
It is understood that the purpose of this step can be corresponding for the voice signal that is acquired by current time microphone
Signal-to-noise ratio determines that such as wind is made an uproar environment in the low frequency signal in the voice signal of current time microphone acquisition compared with threshold value
Whether noise is larger.If signal-to-noise ratio is lower than threshold value, In-Ear the first earphone or the second ear can be utilized by step 103
The voice signal of the low frequency of loudspeaker acquisition in machine, carries out noise reduction process to voice signal；If signal-to-noise ratio is not less than threshold value, it is
The influence for avoiding user from using the loudspeaker in the first earphone or the second earphone, the voice that can be directly acquired using microphone
Signal.
It should be noted that the setting for the specific value of threshold value in this step, it can be by designer according to practical
Scene and user demand self-setting, the present embodiment do not do any restrictions to this.
Step 103: being acquired according to the loudspeaker in the voice signal and the first earphone or the second earphone of microphone acquisition
Voice signal, obtain noise reduction after voice signal；Wherein, the first earphone and the wired or wireless connection of the second earphone.
It is understood that overwhelming majority loudspeaker (receiver) is former using electrodynamic type as shown in Figure 2 at present
Reason is will to be placed in magnetic field with the coil that vibrating diaphragm is fixed together, and when coil passes to electric current, will generate active force, push vibration
Film movement, makes a sound.Actually moving coil receiver and moving-coil type speech transmitter can be reciprocal, when sound wave reaches vibrating diaphragm table
Face pushes diaphragm oscillations, to generate voltage at coil both ends, that is to say, that the two is interchangeable with moving winding cutting magnetic induction line.
And for people when normally speaking, a part of sound passes to external auditory canal through Eustachian tube by oral cavity, and then can pass to In-Ear ear
Machine vibrating diaphragm；Eustachian tube is equivalent to a low-pass filter due to its tubular structure for sound, and can decay high frequency therein
Signal.Therefore, the voice signal of the loudspeaker acquisition in the first earphone or the second earphone In-Ear in this step can be low
Frequency signal.
It is corresponding, since the wind ambient noises such as make an uproar are mainly low-frequency noise, to being needed in the voice signal of microphone acquisition
The frequency range for carrying out noise reduction also concentrates on low frequency.Therefore, the purpose of this step can correspond to for the voice signal acquired in microphone
Signal-to-noise ratio be lower than threshold value when, using in the first earphone or the second earphone loudspeaker acquisition low frequency voice signal, to wheat
Low frequency signal in the voice signal of gram elegance collection carries out noise reduction, the voice signal after obtaining noise reduction.
Specifically, for the specific acquisition modes of the voice signal after the noise reduction in this step, it can be by designer's root
Scene and user demand self-setting are factually used, such as can use the voice of the loudspeaker acquisition in the first earphone or the second earphone
Signal replaces the low frequency signal in the voice signal of microphone acquisition including low frequency voice signal and low frequency environments noise signal；?
The voice signal that can use the loudspeaker acquisition in the first earphone or the second earphone is eliminated in the voice signal of microphone acquisition
Low frequency environments noise signal.The present embodiment does not do any restrictions to this.
It should be noted that in this step the first earphone and the second earphone specific connection relationship, can be by designer
According to practical scene and user demand self-setting, such as moving bluetooth headset may include the first earphone and second of wired connection
Earphone, real radio interconnected I tech clip S (TWS earphone) may include the first earphone and the second earphone being wirelessly connected.
The present embodiment does not do any restrictions to this.Corresponding, when the first earphone is not connected with the second earphone, this step can according to first
The voice signal of loudspeaker acquisition in earphone and the voice signal of microphone acquisition, the voice signal after obtaining noise reduction.
Further, it when in this step using the voice signal of the loudspeaker acquisition in the first earphone or the second earphone, needs
Guarantee that the loudspeaker for acquiring voice signal is arranged in the ear of user, to guarantee that acquisition voice signal is the pharynx drum by user
The low frequency signal of pipe transmission, i.e. the first earphone where the loudspeaker of acquisition voice signal or the second earphone are needed in wearing shape
State.Can also include the steps that the wear condition for determining the first earphone or the second earphone before this step, such as the first earphone and the
When two earphones connect, if being arranged in the first earphone and the second earphone just like infrared sensor for obtaining user's wear condition
Sensor can directly acquire the wear condition of the first earphone and the second earphone；If not set in the first earphone and the second earphone
There is the sensor of available user's wear condition, can whether playing audio-fequency data determines by the first earphone and the second earphone
Whether user wears the first earphone and the second earphone；Can also as shown in this implementation, directly by microphone acquisition voice data when,
Determine that user wears the first earphone and the second earphone.The present embodiment does not do any restrictions to this.
Corresponding, the specific choice of the earphone where loudspeaker for acquiring voice data in this step can be by setting
Meter personnel are according to practical scene and user demand self-setting, when such as the first earphone is connect with the second earphone, if the first earphone with
Second earphone is wearing state, can use the loudspeaker acquisition voice signal in any earphone, i.e., when the first earphone and the
Two earphones in playing audio-fequency data, can use the independent playing audio-fequency data of earphone, utilize the loudspeaking in another
Device acquires voice signal, when there is the independent playing audio-fequency data of an earphone in the first earphone and the second earphone, using not playing
Loudspeaker in the earphone of audio data acquires voice signal；If only an earphone is wearing state, using in wearing
Loudspeaker in the earphone of state acquires voice signal；It, can be no longer to Mike if two earphones are not at wearing state
The voice signal of elegance collection carries out noise reduction.The present embodiment does not do any restrictions to this.
If being arranged in the first earphone and the second earphone just like infrared sensor for obtaining the sensing of user's wear condition
Device, this step can also include: the wear condition for obtaining the first earphone and the second earphone before；If the first earphone and the second earphone
It is wearing state, can use the loudspeaker acquisition voice signal in any earphone；If only an earphone is wearing state,
Then voice signal is acquired using the loudspeaker in the earphone in wearing state；If two earphones are not at wearing state,
Noise reduction no longer can be carried out to the voice signal of microphone acquisition.If being not provided in the first earphone and the second earphone available
Whether the sensor of user's wear condition then in playing audio-fequency data can determine that user is by the first earphone and the second earphone
The first earphone of no wearing and the second earphone.
In the present embodiment, the embodiment of the present invention passes through the voice signal and the first earphone or second that acquire according to microphone
The Mike of In-Ear Headphones is reversely utilized in the voice signal of loudspeaker acquisition in earphone, the voice signal after obtaining noise reduction
The noise reduction process in the case where single microphone to voice signal, section not only may be implemented in the voice signal for the low-frequency range that wind picks up
Acoustical device, structure space and algorithm requirements have been saved, can also further have been promoted at the noise reduction in the case where multiple microphones
Effect is managed, user experience is improved.
Referring to FIG. 3, Fig. 3 is the process of the noise-reduction method of another kind In-Ear Headphones provided by the embodiment of the present invention
Figure.This method may include:
Step 201: obtaining the corresponding signal-to-noise ratio of voice signal of the microphone acquisition of the first earphone connection.
Step 202: judging whether signal-to-noise ratio is lower than threshold value；If so, entering step 203.
Wherein, step 201 and step 202 are similar to step 101 and step 102, and details are not described herein.
Step 203: if the loudspeaker in the first earphone and the second earphone utilizes the second earphone in playing audio-fequency data
Or the first independent playing audio-fequency data of earphone.
It should be noted that the present embodiment is the exhibition carried out by taking the first earphone and the wired or wireless connection of the second earphone as an example
Show.The case where being not connected with the second earphone for the first earphone, can use mode similar with method provided by the present embodiment
Correspondence is configured, and the present embodiment does not do any restrictions to this.
It is understood that due to needing to adopt using the loudspeaker in the first earphone or the second earphone in following step
Collect voice signal, and the earphone during acquiring voice signal can not playing audio-fequency data, therefore, this step is in the first ear
Loudspeaker in machine and the second earphone in playing audio-fequency data, can use corresponding loudspeaker and not need acquisition voice letter
Number the second earphone or the independent playing audio-fequency data of the first earphone, i.e. earphone acquires voice signal, another earphone is independent
Playing audio-fequency data.
It is corresponding, in order to avoid cutting between two earphone playing audio-fequency datas and an independent playing audio-fequency data of earphone
Influence during changing, to user's subjectivity sense of hearing.Can when using the second earphone or the first earphone independent playing audio-fequency data,
The output gain of the second earphone or the first earphone in independent playing audio-fequency data is improved, that is, improves the second earphone or the first earphone
The output gain of playing audio-fequency data under current volume；It can also be improved the second earphone or the first earphone and individually playing audio
Volume when data improves the current volume of the second earphone or the first earphone, as long as can be with the second earphone or the first earphone list
When only playing audio-fequency data, the volume that user hears is improved, when ears broadcasting being avoided to be switched to monaural broadcasting, can feel volume too
It is small also to need additionally to adjust volume.
Specifically, when using the second earphone or the first earphone independent playing audio-fequency data, for improve the second earphone or
The setting of the specific size of output gain of first earphone in independent playing audio-fequency data, can be by designer according to practical
Scene and user demand self-setting can be such as the numerical value in 5db to 7db, or the fixed numerical value such as 6db,
Can according to user's use habit adjust automatically numerical value, as processor can according to user wear a wireless headset when make
The difference of the volume used when two wireless headsets of volume and wearing, automatically generates or adjusts the number of preset gain threshold value
Value.The present embodiment does not do any restrictions to this.
It should be noted that for the loudspeaker in the first earphone and the second earphone not in the feelings of playing audio-fequency data
Condition, can be by designer according to practical scene and user demand self-setting, such as the first earphone and the second earphone only one ear
When machine playing audio-fequency data, if two earphones are in wearing state (identification or default), it can use and do not play audio number
According to earphone loudspeaker acquire voice signal；If only one earphone is in wearing state, can use in wearing shape
The loudspeaker of the earphone of state acquires voice signal, regardless of its whether playing audio-fequency data, or be in and wear in only one earphone
State, and when the earphone playing audio-fequency data, it is chosen whether to stop playing audio-fequency data according to user demand, utilizes the earphone
Loudspeaker acquires voice signal.The present embodiment does not do any restrictions to this.
Step 204: the low frequency signal in the voice signal of removal microphone acquisition, and by the first preset ratio to only including
The voice signal of the microphone acquisition of high frequency signal amplifies, and obtains the first voice signal.
It is understood that the concrete mode of the low frequency signal in the voice signal of microphone acquisition is removed in this step,
It can such as can use high-pass filter by designer according to practical scene and user demand self-setting and filter Mike's elegance
Low frequency signal in the voice signal of collection also can use in other filters or the voice signal of algorithm removal microphone acquisition
Low frequency signal.As long as can remove in the voice signal of microphone acquisition includes low frequency voice signal and low-frequency noise signal
Low frequency signal, the present embodiment do not do any restrictions to this.
It should be noted that only the microphone comprising high frequency signal acquires after for removing low frequency signal in this step
Amplification factor setting of voice signal when amplifying, i.e. the setting of the specific value of the first preset ratio can be by designing
Personnel's self-setting.The present embodiment does not do any restrictions to this.It is corresponding, can also first to microphone acquisition voice signal into
Row amplification, then corresponding low frequency signal is removed, the present embodiment does not do any restrictions equally to this.
Step 205: by the second preset ratio in the first earphone or the second earphone loudspeaker acquisition voice signal into
Row amplification, obtains the second voice signal.
It is understood that this step selects an earphone to stop playing sound in two earphones by playing audio-fequency data
Frequency evidence, the voice signal acquired using the loudspeaker of the earphone.It is corresponding, another earphone can independent playing audio-fequency data,
I.e. another earphone can be switched to monaural play mode.
It should be noted that for the specific choice of the earphone where the loudspeaker of acquisition voice signal in this step, it can
To be arranged on the earphone handle of the first earphone by designer according to practical scene and user demand self-setting, such as microphone
When, this step can amplify for voice signal of second preset ratio to the loudspeaker acquisition in the first earphone, obtain the
Two voice signals.It is corresponding, before this step can also playing audio-fequency data independent including the use of the second earphone the step of.
It should be noted that the voice of the low frequency acquired for the first earphone in this step or the loudspeaker in the second earphone
Amplification factor setting when signal amplifies, i.e. the setting of the specific value of the second preset ratio can be by designer certainly
Row setting.The present embodiment does not do any restrictions to this.
Specifically, this step and step 204 and analytic sequencing is not present, it can be as shown in this embodiment
It first carries out step 204 and carries out this step again, can also first carry out this step and carry out step 204 again, it can also this step and step
204 carry out simultaneously, and the present embodiment does not do any restrictions to this.
Step 206: the first voice signal and the second voice signal being superimposed, the voice signal after obtaining noise reduction.
It should be noted that the purpose of this step can be the superposition by the first voice signal and the second voice signal,
Obtain complete voice signal after removing low-frequency noise.For the specific superposition side of the first voice signal and the second voice signal
Formula, can by designer's self-setting, as long as can guarantee the integrality of the voice signal finally obtained while noise reduction,
The present embodiment does not do any restrictions to this.
In the present embodiment, the low frequency signal in voice signal that the embodiment of the present invention passes through removal microphone acquisition can be with
It will be in the voice signal of the low frequency of the loudspeaker acquisition in the first earphone or the second earphone and the voice signal of microphone acquisition
High frequency signal superposition obtains complete voice signal after removal low-frequency noise, in the case where single microphone not only may be implemented
To the noise reduction process of voice signal, acoustical device, structure space and algorithm requirements are saved, can also further be promoted multiple
Noise reduction process effect in the case where microphone, improves user experience.
Referring to FIG. 4, Fig. 4 is a kind of structure chart of the denoising device of In-Ear Headphones provided by the embodiment of the present invention.
The apparatus may include:
Signal-to-noise ratio obtains module 100, the corresponding letter of voice signal of the microphone acquisition for obtaining the connection of the first earphone
It makes an uproar ratio；
First judgment module 200, for judging whether signal-to-noise ratio is lower than threshold value；
Noise reduction module 300, if being lower than threshold value for signal-to-noise ratio, the voice signal and the first ear acquired according to microphone
The voice signal of loudspeaker acquisition in machine or the second earphone, the voice signal after obtaining noise reduction；Wherein, the first earphone and second
The wired or wireless connection of earphone.
Optionally, noise reduction module 300 may include:
Independent broadcast unit, if for the loudspeaker in the first earphone and the second earphone in playing audio-fequency data, benefit
With the second earphone or the independent playing audio-fequency data of the first earphone, and the corresponding voice signal and first acquired according to microphone
The voice signal of loudspeaker acquisition in earphone or the second earphone, the voice signal after obtaining noise reduction.
Optionally, independent broadcast unit may include:
Gain adjustment subelement increases for improving the output of the second earphone or the first earphone in independent playing audio-fequency data
Benefit
Optionally, independent broadcast unit is specifically used for utilizing the independent playing audio-fequency data of the second earphone, and according to the first ear
The voice signal of loudspeaker acquisition in machine and the voice signal of microphone acquisition, the voice signal after obtaining noise reduction.
Optionally, which can also include:
Wear condition obtains module, for obtaining the wear condition of the first earphone and the second earphone；If the first earphone and
Two earphones are wearing state, then send enabling signal to noise reduction module 300；
Independent noise reduction module, if being wearing state and the second earphone for the first earphone is non-wearing state, according to the
The voice signal of loudspeaker acquisition in one earphone and the voice signal of microphone acquisition, the voice signal after obtaining noise reduction.
Optionally, noise reduction module 300, comprising:
Filter and amplification unit, the low frequency signal in voice signal for removing microphone acquisition, and by the first default ratio
The voice signal that example acquires the microphone for only including high frequency signal amplifies, and obtains the first voice signal；
Amplifying unit, for believing by voice of second preset ratio to the loudspeaker acquisition in the first earphone or the second earphone
It number amplifies, obtains the second voice signal；
Acquiring unit, for the first voice signal and the second voice signal to be superimposed, the voice signal after obtaining noise reduction.
In the present embodiment, voice signal that the embodiment of the present invention is acquired by noise reduction module 300 according to microphone and the
The voice signal of loudspeaker acquisition in one earphone or the second earphone, the voice signal after obtaining noise reduction are reversely utilized pleasant
The voice signal for the low-frequency range that the microphone of formula earphone picks up not only may be implemented in the case where single microphone to voice signal
The case where noise reduction process saves acoustical device, structure space and algorithm requirements, can also further promote multiple microphones
Under noise reduction process effect, improve user experience.
The embodiment of the invention also provides a kind of In-Ear Headphones, comprising: loudspeaker, microphone, memory and processor；
Wherein, memory realizes such as above-mentioned any embodiment for storing computer program when processor is for executing computer program
The step of noise-reduction method of provided In-Ear Headphones.
In addition, the embodiment of the invention also provides a kind of computer readable storage medium, on computer readable storage medium
It is stored with computer program, the In-Ear ear as provided by above-mentioned any embodiment is realized when computer program is executed by processor
The step of noise-reduction method of machine.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment, enter
For aural headphone and computer readable storage medium, since it is corresponded to the methods disclosed in the examples, so the ratio of description
Relatively simple, reference may be made to the description of the method.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a 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 implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is 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 any other form of storage medium well known in field.
Detailed Jie has been carried out to the noise-reduction method, device and In-Ear Headphones of In-Ear Headphones provided by the present invention above
It continues.Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only
It is to be used to help understand method and its core concept of the invention.It should be pointed out that for those skilled in the art
For, it without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improve and repair
Decorations are also fallen within the protection scope of the claims of the present invention.
Claims (10)
1. a kind of noise-reduction method of In-Ear Headphones characterized by comprising
Obtain the corresponding signal-to-noise ratio of voice signal of the microphone acquisition of the first earphone connection；
Judge whether the signal-to-noise ratio is lower than threshold value；
If so, being adopted according to the loudspeaker in the voice signal and first earphone or the second earphone of microphone acquisition
The voice signal of collection, the voice signal after obtaining noise reduction；Wherein, first earphone and the wired or wireless company of the second earphone
It connects.
2. the noise-reduction method of In-Ear Headphones according to claim 1, which is characterized in that described according to Mike's elegance
The voice signal of loudspeaker acquisition in the voice signal of collection and first earphone or the second earphone, the language after obtaining noise reduction
Sound signal, comprising:
If the loudspeaker in first earphone and second earphone utilizes second earphone in playing audio-fequency data
Or the independent playing audio data of the first earphone, and corresponding voice signal and institute according to microphone acquisition
State the voice signal of the loudspeaker acquisition in the first earphone or the second earphone, the voice signal after obtaining noise reduction.
3. the noise-reduction method of In-Ear Headphones according to claim 2, which is characterized in that described to utilize second earphone
Or the independent playing audio data of the first earphone, comprising:
Improve the output gain of second earphone or first earphone in independent playing audio data.
4. the noise-reduction method of In-Ear Headphones according to claim 2, which is characterized in that described to utilize second earphone
Or the independent playing audio data of the first earphone, and corresponding voice signal and institute according to microphone acquisition
State the voice signal of the loudspeaker acquisition in the first earphone or the second earphone, the voice signal after obtaining noise reduction, comprising:
Using the independent playing audio data of the second earphone, and according to the language of the loudspeaker acquisition in first earphone
The voice signal of sound signal and microphone acquisition, the voice signal after obtaining noise reduction.
5. the noise-reduction method of In-Ear Headphones according to claim 1, which is characterized in that described according to Mike's elegance
The voice signal of loudspeaker acquisition in the voice signal of collection and first earphone or the second earphone, the language after obtaining noise reduction
Before sound signal, further includes:
Obtain the wear condition of first earphone and second earphone；
If first earphone and second earphone are wearing state, the language acquired according to the microphone is executed
The voice signal of loudspeaker acquisition in sound signal and first earphone or the second earphone, the voice signal after obtaining noise reduction
The step of；
If first earphone is wearing state and second earphone is non-wearing state, according in first earphone
The voice signal of loudspeaker acquisition and the voice signal of microphone acquisition, the voice signal after obtaining noise reduction.
6. the noise-reduction method of In-Ear Headphones according to any one of claims 1 to 5, which is characterized in that described according to institute
The voice signal for stating the loudspeaker acquisition in the voice signal and first earphone or the second earphone of microphone acquisition, obtains
Voice signal after noise reduction, comprising:
The low frequency signal in the voice signal of the microphone acquisition is removed, and by the first preset ratio to only comprising medium-high frequency letter
Number the microphone acquisition voice signal amplify, obtain the first voice signal；
It is put by voice signal of second preset ratio to the loudspeaker acquisition in first earphone or second earphone
Greatly, the second voice signal is obtained；
First voice signal and second voice signal are superimposed, the voice signal after obtaining noise reduction.
7. a kind of denoising device of In-Ear Headphones characterized by comprising
Signal-to-noise ratio obtains module, the corresponding signal-to-noise ratio of voice signal of the microphone acquisition for obtaining the connection of the first earphone；
Judgment module, for judging whether the signal-to-noise ratio is lower than threshold value；
Noise reduction module, if for the signal-to-noise ratio be lower than the threshold value, according to the microphone acquisition voice signal and
The voice signal of loudspeaker acquisition in first earphone or the second earphone, the voice signal after obtaining noise reduction；Wherein, described
First earphone and the wired or wireless connection of the second earphone.
8. the denoising device of In-Ear Headphones according to claim 7, which is characterized in that the noise reduction module, comprising:
Independent broadcast unit, if for the loudspeaker in first earphone and second earphone in playing audio-fequency data,
Second earphone or the independent playing audio data of the first earphone are then utilized, and corresponding according to Mike's elegance
The voice signal of loudspeaker acquisition in the voice signal of collection and first earphone or the second earphone, the language after obtaining noise reduction
Sound signal.
9. the denoising device of In-Ear Headphones according to claim 7 or 8, which is characterized in that the noise reduction module, packet
It includes:
Filter and amplification unit, the low frequency signal in voice signal for removing the microphone acquisition, and by the first default ratio
The voice signal that example acquires the microphone for only including high frequency signal amplifies, and obtains the first voice signal；
Amplifying unit, for the language by the second preset ratio to the loudspeaker acquisition in first earphone or second earphone
Sound signal amplifies, and obtains the second voice signal；
Acquiring unit, the voice letter for first voice signal and second voice signal to be superimposed, after obtaining noise reduction
Number.
10. a kind of In-Ear Headphones characterized by comprising loudspeaker, microphone, memory and processor；Wherein, described
Memory, realized for storing computer program, when the processor is for executing the computer program as claim 1 to
The step of noise-reduction method of 6 described in any item In-Ear Headphones.
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