CN105376668B - A kind of earphone noise-reduction method and device - Google Patents
A kind of earphone noise-reduction method and device Download PDFInfo
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Abstract
The invention discloses a kind of earphone noise-reduction method and devices, wherein method includes：The microphone that user selectes is opened, acquires environmental noise in real time；Noise reduction process is carried out to the environmental noise according to default noise reduction dynamics parameter, so that noise reduction dynamics parameter is arranged according to the audio signal after noise reduction process in user；The noise reduction dynamics parameter for receiving user setting, is adjusted to the noise reduction dynamics parameter for the default noise reduction dynamics parameter；Noise reduction process is carried out to the environmental noise using the noise reduction dynamics parameter.The present invention solves the problems, such as to improve microphone to solve user and can not select the noise reduction effect of suitable microphone and adjustment earphone as needed and pick up the accuracy of environmental noise and the noise reduction effect of earphone.
Description
Technical field
The present invention relates to earphone noise reduction technology field more particularly to a kind of earphone noise-reduction methods and device.
Background technique
Earphone has been obtained extensive use in the ordinary life and work of people, earphone in addition to being used to appreciate music,
Except the function of amusement, it is also widely used for isolation environment noise, provides relatively quiet environment for user.
Earphone noise reduction may be implemented there are two types of method at present, first method is the noise reduction using special noise cancelling headphone
Each earphone of earphone has the noise measuring microphone attached, and noise reduction effect is good, but its interface and general at present four sections
Formula headset plug is incompatible, and expensive.Second method is
The structural schematic diagram of four-section type headset, four-section type headset include L channel, right channel, and four feet of microphone, this method
Principle is to collect environmental noise using the single microphone on earphone or mobile phone, and then cell phone system generates opposite with environmental noise
Signal be sent to earphone, to offset environmental noise, noise reduction effect is preferable, but the selection of microphone and the noise reduction parameters of earphone are all
Pre-set before factory, there are microphones can not accurately acquire environmental noise, and noise reduction dynamics is insufficient or excessive problem.
Summary of the invention
In view of this, the purpose of the present invention is to propose to a kind of earphone noise-reduction method and device, to improve microphone acquisition ring
The accuracy of border noise and the noise reduction effect of earphone.
To achieve the above object, the present invention adopts the following technical scheme that：
On the one hand, the embodiment of the invention provides a kind of earphone noise-reduction methods, including：
The microphone that user selectes is opened, acquires environmental noise in real time；
Noise reduction process is carried out to the environmental noise according to default noise reduction dynamics parameter, so that after user is according to noise reduction process
Audio signal be arranged noise reduction dynamics parameter；
The default noise reduction dynamics parameter is adjusted to the noise reduction dynamics and joined by the noise reduction dynamics parameter for receiving user setting
Number；
Noise reduction process is carried out to the environmental noise using the noise reduction dynamics parameter.
On the other hand, the embodiment of the invention provides a kind of noise reduction device of earphone, including：
Microphone opening module, the microphone selected for opening user, acquires environmental noise in real time；
First noise reduction module, for carrying out noise reduction process to the environmental noise according to default noise reduction dynamics parameter, so that
Noise reduction dynamics parameter is arranged according to the audio signal after noise reduction process in user；
Noise reduction dynamics adjusts module, and for receiving the noise reduction dynamics parameter of user setting, the default noise reduction dynamics is joined
Number is adjusted to the noise reduction dynamics parameter；
Second noise reduction module, for carrying out noise reduction process to the environmental noise using the noise reduction dynamics parameter.
The beneficial effects of the invention are as follows：A kind of earphone noise-reduction method and device provided by the invention, on mobile terminal
Multiple microphones and earphone on microphone, when user can select suitable microphone according to the actual situation, earphone noise reduction
Device opens the microphone that user selectes, and can accurately acquire environmental noise；User drops according to default noise reduction dynamics parameter
Audio signal of making an uproar that treated, when suitable noise reduction dynamics parameter is set, noise reduction device of earphone using the noise reduction dynamics parameter into
One step carries out noise reduction process to environmental noise, solves the problems, such as that noise reduction dynamics is insufficient or excessive, improves the noise reduction effect of earphone
Fruit.
Detailed description of the invention
Exemplary embodiments of the present invention will be described in detail referring to the drawings by general below, makes those skilled in the art
Above-mentioned and other feature and advantage of the invention are become apparent from, in attached drawing：
Fig. 1 is the structural schematic diagram of four-section type headset in the prior art；
Fig. 2 is the flow diagram for the earphone noise-reduction method that the embodiment of the present invention one provides；
Fig. 3 is the flow diagram of earphone noise-reduction method provided by Embodiment 2 of the present invention；
Fig. 4 is the flow diagram for the earphone noise-reduction method that the embodiment of the present invention three provides；
Fig. 5 is the structural block diagram for the noise reduction device of earphone that the embodiment of the present invention four provides；
Fig. 6 is the structural block diagram of the preferred embodiment for the noise reduction device of earphone that the embodiment of the present invention four provides.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.It is understood that
It is that specific embodiment described herein is used only for explaining the present invention rather than limiting the invention.It further needs exist for illustrating
, only the parts related to the present invention are shown for ease of description, in attached drawing rather than entire infrastructure.
Embodiment one
Fig. 2 is the flow diagram for the earphone noise-reduction method that the embodiment of the present invention one provides.This method makes suitable for user
When listening to the audio from mobile terminal with four-section type headset, unrestricted choice microphone, and active noise reduction is carried out to environmental noise
The case where.This method can be executed by noise reduction device of earphone, which can be realized by the mode of software and/or hardware.
As shown in Fig. 2, this method includes：
Step 110 opens the microphone that user selectes, and acquires environmental noise in real time.
In view of the sensitivity and frequency response difference of the signal that different microphones receives, to the record of environmental noise
It is different, and generally have multiple microphones on mobile terminal (such as mobile phone), four-section type headset also carries a microphone, existing
Technology can not select suitable microphone to acquire environmental noise, and can only be adopted using a fixed microphone of factory setting
Collect environmental noise, and microphone on mobile terminals for acquire environmental noise when, if the mobile terminal is placed on the pocket of user
In, then the microphone can not accurately acquire environmental noise.
Therefore, in the present embodiment, mobile terminal can provide microphone selection interface for user, and user is according to the ring of surrounding
Border etc. selects a suitable microphone for accurately acquiring environmental noise, and noise reduction device of earphone can be according to the choosing of user at this time
It selects and is recognized, and open the microphone that user selectes, acquire environmental noise in real time.
Step 120 carries out noise reduction process to environmental noise according to default noise reduction dynamics parameter.
Wherein, the numberical range for presetting noise reduction dynamics parameter is 0~100%, can control (phase opposite with environmental noise
On the contrary, amplitude is identical) signal intensity, and the intensity of the signal is directly proportional to default noise reduction dynamics parameter, i.e., default noise reduction
Dynamics parameter is bigger, and the intensity of the signal opposite with environmental noise is stronger, at this point, environmental noise is weaker.
Illustratively, above-mentioned default noise reduction dynamics parameter can be preset according to practical debugging, to adapt to most rings
The noise reduction process of border noise.When microphone collects environmental noise and user is listening to audio, mobile terminal is according to the ring
Border noise can generate a signal opposite with the environmental noise, and default noise reduction dynamics parameter is loaded into this by noise reduction device of earphone
On signal, to control the intensity of the signal, and then the size of environmental noise is controlled, so that user is according to the audio after noise reduction process
Noise reduction dynamics parameter is arranged in signal.
Default noise reduction dynamics parameter is adjusted to noise reduction dynamics ginseng by step 130, the noise reduction dynamics parameter for receiving user setting
Number.
Since the microphone of acquisition environmental noise can not be built in ear, and can exist in the coupler of earphone and ear
Remaining noise may result in nothing when carrying out noise reduction process to environmental noise using fixed default noise reduction dynamics parameter
Method properly offset noise, for example, noise reduction dynamics deficiency will lead to, noise is larger, and noise reduction dynamics crosses conference and generates new make an uproar
Sound.Therefore, it can actively regulate noise reduction dynamics parameter, properly to offset environmental noise.
Illustratively, mobile terminal can provide noise reduction dynamics parameter adjustment interface for user, and user can be by virtual
Adjusting knob or entity volume key are adjusted noise reduction dynamics parameter.Specifically, user's uppick uses default noise reduction dynamics
When parameter carries out the audio after noise reduction process, if user is dissatisfied to noise reduction effect, it can be increased and decreased by entity volume key default
Noise reduction dynamics parameter, noise reduction device of earphone receive the noise reduction dynamics parameter of user setting, default noise reduction dynamics parameter are adjusted to
The noise reduction dynamics parameter of user setting, recalls customer satisfaction system noise reduction effect with this.
Step 140 carries out noise reduction process to environmental noise using noise reduction dynamics parameter.
Illustratively, noise reduction device of earphone carries out noise reduction process to environmental noise using noise reduction dynamics parameter adjusted.
Later, when environmental noise changes, step 130 can be used, current noise reduction dynamics parameter is adjusted, use the secondary tune
Noise reduction dynamics parameter after whole carries out noise reduction process to environmental noise, to realize another customer satisfaction system noise reduction effect.
The earphone noise-reduction method that the embodiment of the present invention one provides, on the multiple microphones and earphone on mobile terminal
Microphone, when user can select suitable microphone according to the actual situation, noise reduction device of earphone opens the Mike that user selectes
Wind can accurately acquire environmental noise；User carries out the audio signal after noise reduction process, setting according to default noise reduction dynamics parameter
When suitable noise reduction dynamics parameter, noise reduction device of earphone further carries out at noise reduction environmental noise using the noise reduction dynamics parameter
Reason solves the problems, such as that noise reduction dynamics is insufficient or excessive, improves the noise reduction effect of earphone.
Embodiment two
Fig. 3 is the flow diagram of earphone noise-reduction method provided by Embodiment 2 of the present invention.The present embodiment is with embodiment one
Based on, after carrying out noise reduction process to environmental noise using noise reduction dynamics parameter, increase step：Receive user's input
The default EQ value of setting frequency range is adjusted to the EQ value of user's input, to offset setting frequency range by the balanced device EQ value of setting frequency range
Environmental noise.
As a result, when user has found that the environmental noise of certain frequency range is not eliminated, the EQ value of the frequency range can be increased, more
The environmental noise of the frequency range is offset on ground, to improve noise reduction effect.
Correspondingly, the method for the present embodiment includes the following steps：
Step 210 opens the microphone that user selectes, and acquires environmental noise in real time.
Step 220 carries out noise reduction process to environmental noise according to default noise reduction dynamics parameter.
Default noise reduction dynamics parameter is adjusted to noise reduction dynamics ginseng by step 230, the noise reduction dynamics parameter for receiving user setting
Number.
Step 240 carries out noise reduction process to environmental noise using noise reduction dynamics parameter.
Step 250, the EQ value for receiving the setting frequency range that user inputs, it is defeated to be adjusted to user for the default EQ value of setting frequency range
The EQ value entered.
Wherein, by adjusting the yield value of the adjustable each frequency range of the EQ value signal opposite with environmental noise.
Since the noise transmission path that environmental noise and human ear snail that microphone picks up are picked up is different, microphone is only picked up
Airborne acoustic signals, and what cochlea picked up is that air (ear canal propagation) and solid propagate (head part's tissue) sound wave letter
Number, therefore, the noise frequency response that noise frequency response and the microphone of auditory perceptual pick up be it is discrepant, over different frequencies face drop
The effect made an uproar is also different.
Therefore, in the present embodiment, mobile terminal can provide EQ adjustment interface for user, and user first can adjust boundary in EQ
Then the endpoint value that setting frequency range is inputted on face inputs the EQ value of the setting frequency range, to determine setting frequency range to increased or decrease
The yield value of the signal opposite with environmental noise improves noise reduction effect.Specifically, user's uppick using noise reduction dynamics parameter into
When audio after row noise reduction process, if user has found that the environmental noise of certain frequency range is not eliminated, EQ adjustment interface may bring up,
Input setting frequency range and EQ value are attempted at EQ adjustment interface, noise reduction device of earphone receives the EQ value of the setting frequency range of user's input,
The default EQ value of setting frequency range is adjusted to the EQ value of user's input, with this until offsetting the environmental noise of setting frequency range.
Earphone noise-reduction method provided by Embodiment 2 of the present invention, the EQ value of the setting frequency range by receiving user's input, will
The default EQ value of setting frequency range is adjusted to the EQ value of user's input, more effectively offsets the environmental noise of setting frequency range, further
Improve noise reduction effect.
Embodiment three
Fig. 4 is the flow diagram for the earphone noise-reduction method that the embodiment of the present invention three provides.The present embodiment is with embodiment one
Based on, before opening the microphone that user selectes, increase step：Preset configuration is opened, to open default microphone, and
Noise reduction process is carried out to the environmental noise that default microphone acquires using default noise reduction dynamics parameter and default EQ curve；Accordingly
Default microphone is closed when opening the microphone that user selectes in ground.
Further, in the present embodiment, before opening preset configuration, further include：
Open decrease of noise functions；
Correspondingly, after exiting decrease of noise functions, restore above-mentioned preset configuration.
As a result, after opening decrease of noise functions, noise reduction device of earphone first turns on preset configuration, after exiting decrease of noise functions,
Restore above-mentioned preset configuration automatically again, preferable noise reduction effect can be realized to most environmental noises, facilitate user in pre- establishing
Noise reduction dynamics parameter and EQ value are adjusted on the basis of setting, to realize better noise reduction effect.
Correspondingly, the method for the present embodiment includes the following steps：
Step 310 opens decrease of noise functions.
Illustratively, when connecting mobile terminal and earphone, mobile terminal can prompt the user whether to open noise reduction function user
Can, whether user selects to be as needed；In addition, during listening to audio, decrease of noise functions can also be actively arranged in user
Unlatching with exit.
Step 320 opens preset configuration, to open default microphone, and uses default noise reduction dynamics parameter and default EQ
Curve carries out noise reduction process to the environmental noise that default microphone acquires.
In the present embodiment, when noise reduction device of earphone determines and opens decrease of noise functions, preset configuration is automatically turned on, that is, is opened pre-
If microphone, and noise reduction is carried out to the environmental noise that default microphone acquires using default noise reduction dynamics parameter and default EQ curve
Processing.Wherein, default microphone can be the microphone on earphone, or it is bent to preset EQ for the microphone on mobile terminal
Line can be flat curve.
The microphone that step 330, unlatching user select acquires environmental noise in real time, closes default microphone.
In the present embodiment, when above-mentioned default microphone accurately can not acquire environmental noise, user can actively select it
His microphone acquires environmental noise in real time, meanwhile, close default microphone.
Step 340 carries out noise reduction process to environmental noise according to default noise reduction dynamics parameter.
Default noise reduction dynamics parameter is adjusted to noise reduction dynamics ginseng by step 350, the noise reduction dynamics parameter for receiving user setting
Number.
Step 360 carries out noise reduction process to environmental noise using noise reduction dynamics parameter.
Step 370, after exiting decrease of noise functions, restore preset configuration.
After exiting decrease of noise functions, restore preset configuration, preset configuration can be used at this time, noise reduction is carried out to environmental noise
Processing.
The earphone noise-reduction method that the embodiment of the present invention three provides, after opening decrease of noise functions, noise reduction device of earphone is opened first
Preset configuration is opened, after exiting decrease of noise functions, and restores above-mentioned preset configuration automatically, most environmental noises can be realized preferable
Noise reduction effect, facilitate user to be adjusted on the basis of preset configuration to noise reduction dynamics parameter and EQ value, and be easy to implement
Better noise reduction effect.
Example IV
Fig. 5 is the structural block diagram for the noise reduction device of earphone that the embodiment of the present invention four provides.As shown in figure 5, the device includes：
Microphone opening module 40, the first noise reduction module 41, noise reduction dynamics adjustment module 42 and the second noise reduction module 43.
Wherein, microphone opening module 40 acquires environmental noise for opening the microphone that user selectes in real time；
First noise reduction module 41 is used to carry out noise reduction process to environmental noise according to default noise reduction dynamics parameter, so that user
According to the audio signal after noise reduction process, noise reduction dynamics parameter is set；
Noise reduction dynamics adjustment module 42 is used to receive the noise reduction dynamics parameter of user setting, by default noise reduction dynamics parameter tune
It is whole to arrive above-mentioned noise reduction dynamics parameter；
Second noise reduction module 43 is used to carry out noise reduction process to environmental noise using above-mentioned noise reduction dynamics parameter.
Noise reduction device of earphone provided by the embodiment of the present invention four can be used for executing ear provided by the embodiment of the present invention
Machine noise-reduction method has correspondingly function and beneficial effect.
Preferably, referring to Fig. 6, in above scheme, noise reduction device of earphone further includes：
EQ value adjusts module 50, is used for after carrying out noise reduction process to environmental noise using above-mentioned noise reduction dynamics parameter,
The default EQ value of setting frequency range, is adjusted to the EQ value of user's input by the balanced device EQ value for receiving the setting frequency range of user's input,
To offset the environmental noise of setting frequency range.
Further, in above scheme, noise reduction device of earphone further includes：
Preset configuration opening module 51, for opening preset configuration before opening the microphone that user selectes, to open
Default microphone, and dropped using the environmental noise that default noise reduction dynamics parameter and default EQ curve acquire default microphone
It makes an uproar processing；
Default microphone closedown module 52, for when opening the microphone that user selectes, closing default microphone.
Further, in above scheme, noise reduction device of earphone further includes：
Decrease of noise functions opening module 53, for opening decrease of noise functions before opening preset configuration；
Preset configuration recovery module 54, for restoring preset configuration after exiting decrease of noise functions.
Preferably, above-mentioned default EQ curve is flat curve.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (6)
1. a kind of earphone noise-reduction method, which is characterized in that including：
When connecting mobile terminal and earphone, or during listening to audio, decrease of noise functions is opened；
Preset configuration is opened, to open default microphone, and using default noise reduction dynamics parameter and default EQ curve to default wheat
The environmental noise of gram elegance collection carries out noise reduction process；Wherein, default microphone is microphone on earphone or is on mobile terminal
Microphone；
The microphone that user selectes according to microphone selection interface is opened, acquires environmental noise in real time, closes the default Mike
Wind；
Noise reduction process is carried out to the environmental noise according to default noise reduction dynamics parameter, so that user is according to the sound after noise reduction process
Noise reduction dynamics parameter is arranged in frequency signal；Wherein, the numberical range of the default noise reduction dynamics parameter is 0~100%, described default
Noise reduction dynamics parameter is fixed value, and the default noise reduction dynamics parameter is used to control the intensity of the signal opposite with environmental noise,
Default noise reduction dynamics parameter is bigger, and the intensity of the signal opposite with environmental noise is stronger；
The noise reduction dynamics parameter that user adjusts interface setting by noise reduction dynamics parameter is received, by the default noise reduction dynamics parameter
It is adjusted to the noise reduction dynamics parameter；
Noise reduction process is carried out to the environmental noise using the noise reduction dynamics parameter；
After exiting decrease of noise functions, restore preset configuration.
2. the method according to claim 1, wherein in the utilization noise reduction dynamics parameter to the environmental noise
After carrying out noise reduction process, further include：
The balanced device EQ value for receiving the setting frequency range of user's input, is adjusted to the user for the default EQ value of the setting frequency range
The EQ value of input, to offset the environmental noise of the setting frequency range.
3. the method according to claim 1, wherein the default EQ curve is flat curve.
4. a kind of noise reduction device of earphone, which is characterized in that including：
Decrease of noise functions opening module is used to open noise reduction when connecting mobile terminal and earphone, or during listening to audio
Function；
Preset configuration opening module, for preset configuration being opened, to open default wheat before opening the microphone that user selectes
Gram wind, and at environmental noise progress noise reduction acquire to default microphone using default noise reduction dynamics parameter and default EQ curve
Reason；Wherein, default microphone is microphone on earphone or is microphone on mobile terminal；
Microphone opening module, the microphone selected for opening user according to microphone selection interface acquire environment in real time and make an uproar
Sound；
Default microphone closedown module, for closing the default microphone when opening the microphone that user selectes；
First noise reduction module, for carrying out noise reduction process to the environmental noise according to default noise reduction dynamics parameter, so that user
According to the audio signal after noise reduction process, noise reduction dynamics parameter is set；
Noise reduction dynamics adjusts module, adjusts the noise reduction dynamics parameter that interface is arranged by noise reduction dynamics parameter for receiving user,
The default noise reduction dynamics parameter is adjusted to the noise reduction dynamics parameter；Wherein, the numerical value of the default noise reduction dynamics parameter
Range is 0~100%, and the default noise reduction dynamics parameter is fixed value, and the default noise reduction dynamics parameter is for control and environment
The intensity of the opposite signal of noise, default noise reduction dynamics parameter is bigger, and the intensity of the signal opposite with environmental noise is stronger；
Second noise reduction module, for carrying out noise reduction process to the environmental noise using the noise reduction dynamics parameter；
Preset configuration recovery module, for restoring the preset configuration after exiting the decrease of noise functions.
5. device according to claim 4, which is characterized in that further include：
EQ value adjusts module, for connecing after carrying out noise reduction process to the environmental noise using the noise reduction dynamics parameter
The default EQ value of the setting frequency range is adjusted to user's input by the balanced device EQ value for receiving the setting frequency range of user's input
EQ value, to offset the environmental noise of the setting frequency range.
6. device according to claim 4, which is characterized in that the default EQ curve is flat curve.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105979415B (en) * | 2016-05-30 | 2019-04-12 | 歌尔股份有限公司 | A kind of noise-reduction method, device and the noise cancelling headphone of the gain of automatic adjusument noise reduction |
| CN106101909B (en) * | 2016-08-26 | 2019-05-17 | 维沃移动通信有限公司 | A kind of method and mobile terminal of earphone noise reduction |
| CN106647346A (en) * | 2016-09-26 | 2017-05-10 | 郑州云海信息技术有限公司 | Electronic noise reduction system control method and device |
| CN106303839B (en) * | 2016-09-29 | 2019-10-29 | 中山市天键电声有限公司 | ANC method for noise reduction control based on cell phone application |
| CN108335701B (en) * | 2018-01-24 | 2021-04-13 | 青岛海信移动通信技术股份有限公司 | Method and equipment for sound noise reduction |
| CN108882073B (en) * | 2018-06-19 | 2020-08-21 | 倬韵科技（深圳）有限公司 | Method and device for inhibiting wind noise of microphone, earphone and mobile terminal |
| CN112019961B (en) * | 2019-05-29 | 2022-07-19 | 深圳市冠旭电子股份有限公司 | Noise reduction parameter debugging method and device for noise reduction earphone and terminal |
| CN110430500B (en) * | 2019-07-31 | 2020-08-04 | 歌尔科技有限公司 | Noise reduction method of earphone and earphone |
| WO2021189309A1 (en) * | 2020-03-25 | 2021-09-30 | 深圳市汇顶科技股份有限公司 | Method and system for active noise reduction, electronic device, and chip |
| JP2023525138A (en) * | 2020-05-14 | 2023-06-14 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | Active noise canceling method and apparatus |
| CN113490089B (en) * | 2021-06-02 | 2022-07-29 | 安克创新科技股份有限公司 | Noise reduction control method, electronic device and computer readable storage device |
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| CN1305661A (en) * | 1998-04-14 | 2001-07-25 | 听觉增强有限公司 | User adjustable volume control that accommodates hearing |
| CN102800323A (en) * | 2012-06-25 | 2012-11-28 | 华为终端有限公司 | Method and device for reducing noises of voice of mobile terminal |
| CN104618829A (en) * | 2014-12-29 | 2015-05-13 | 歌尔声学股份有限公司 | Adjusting method of earphone environmental sound and earphone |
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