CN104427436A - Information processing method and electronic equipment - Google Patents
Information processing method and electronic equipment Download PDFInfo
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- CN104427436A CN104427436A CN201310376691.0A CN201310376691A CN104427436A CN 104427436 A CN104427436 A CN 104427436A CN 201310376691 A CN201310376691 A CN 201310376691A CN 104427436 A CN104427436 A CN 104427436A
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Abstract
The embodiment of the application relates to the field of the electronic technology, especially to an information method and electronic equipment, thereby solving a technical problem that voice information can not be obtained accurately in the prior art. The information processing method applied to electronic equipment having at least three voice acquisition devices comprises the following steps that: when the electronic equipment is at a first position mode, whether the electronic equipment is switched from the first position mode to a second position mode is detected; if so, at least two of the voice acquisition devices are selected to carry out voice acquisition, wherein the selected voice acquisition devices are at the same horizontal positions when the electronic equipment is in the second position mode. According to the embodiment of the application, a technical effect that voice information of the user can be obtained accurately when the electronic equipment is in any position mode can be realized.
Description
Technical field
The application relates to electronic technology field, particularly relates to a kind of information processing method and a kind of electronic equipment.
Background technology
Along with the development of science and technology, electronic equipment have also been obtained development at full speed, and the kind of electronic product also gets more and more, and people have also enjoyed the various facilities that scientific development brings, present people can pass through various types of electronic equipment, enjoy the comfortable life along with development in science and technology brings.Such as, the voice messaging of acquisition can be carried out the reprocessing of noise reduction by existing speech recognition equipment, exports to user's information more accurately.
Mostly existing adopted noise reduction is diamylose gram noise reduction, specifically refer to, two microphones are set in the electronic device, a clear call of stable maintenance, another microphone physics initiatively abates the noise, by collecting external sound, after processing, send the sound wave contrary with noise, utilize principle of cancellation to abate the noise, namely by the waveform reversing function that just realize noise reduction overlapping with microphone collection.
Another kind of diamylose gram noise reduction specifically, two microphones are still set in the electronic device, two Mikes are eolian is horizontally disposed with for this, by software design patterns, these two microphones only can be collected the sound in preset range, and the sound outside preset range is masked, as shown in Figure 1, when user talks in this preset range, owing to shielding the sound outside preset range, therefore, the voice messaging of acquisition is more accurate.
But present inventor is in the process realizing invention technical scheme in the embodiment of the present application, find that above-mentioned technology at least exists following technical problem:
Because dual microphone is horizontally disposed in the electronic device, and the sound that only can be collected in horizontal extent, if after electronic equipment overturns by user, be originally horizontally disposed microphone, present one-tenth vertical direction is provided with, so, just exist after the mode position change of electronic equipment, the technical problem of the sound of better quality cannot be obtained.
Summary of the invention
The embodiment of the present application is by providing a kind of method of information processing and a kind of electronic equipment, solve in prior art because user needs electronic equipment to overturn when using electronic equipment, and electronic equipment after the flop, the direction of two microphone settings changes to some extent, just exist after the mode position change of electronic equipment, the technical problem of the sound of better quality cannot be obtained, achieve electronic equipment when no matter being in which kind of mode position, can both Noise reduction be carried out, thus improve the quality of the sound of collection.
On the one hand, the embodiment of the present application provides a kind of method of information processing, described method is applied to be had in the electronic equipment of at least three voice collection device, described method comprises: when described electronic equipment is in primary importance pattern, detect described electronic equipment whether by described primary importance patten transformation to second place pattern; When detecting that described electronic equipment is transformed into described second place pattern, at least two voice collection device are selected from all voice collection device, and carry out sound collection by the voice collection device selected, the voice collection device wherein selected is in same level position when described electronic equipment is in second place pattern.
Further, the described electronic equipment of described detection whether by described primary importance patten transformation to second place pattern, be specially: by the gravity sensitive device be arranged on described electronic equipment detect described electronic equipment whether by described primary importance patten transformation to described second place pattern.
Further, when detecting that described electronic equipment is transformed into described second place pattern, from described voice collection device, select at least two voice collection device to carry out sound collection, be specially: when detecting that described electronic equipment is transformed into described second place pattern, in other voice collection device from all voice collection device except the current voice collection device gathered, select at least two voice collection device, and carry out sound collection by the voice collection device selected.
Further, the described voice collection device by selecting, comprising: close the current voice collection device gathered, open the voice collection device of selection simultaneously.
Further, when detecting that described electronic equipment is transformed into described second place pattern, from described voice collection device, select at least two voice collection device to carry out sound collection, be specially: when detecting that described electronic equipment is transformed into described second place pattern, at least one voice collection device is selected from the current voice collection device gathered, and in other voice collection device from all voice collection device except the current voice collection device gathered, select at least one voice collection device, and carry out sound collection by the voice collection device selected.
Further, the described voice collection device by selecting carries out sound collection, comprising: close unselected voice collection device in the current voice collection device gathered, and opens the voice collection device selecting not to be in unlatching simultaneously.
On the other hand, present invention also provides a kind of electronic equipment, comprising: processor and at least three voice collection device be connected with processor; Described processor, for when described electronic equipment is in primary importance pattern, detect described electronic equipment whether by described primary importance patten transformation to second place pattern; When detecting that described electronic equipment is transformed into described second place pattern, at least two voice collection device are selected from all voice collection device, and carry out sound collection by the voice collection device selected, the voice collection device wherein selected is in same level position when described electronic equipment is in second place pattern.
Further, described electronic equipment also comprises: the gravity sensitive device be connected with described processor; Described processor specifically for: by described gravity sensitive device detect described electronic equipment whether by described primary importance patten transformation to described second place pattern.
Further, described processor specifically for: when detecting that described electronic equipment is transformed into described second place pattern, in other voice collection device from all voice collection device except the current voice collection device gathered, select at least two voice collection device, and carry out sound collection by the voice collection device selected.
Further, described processor also specifically for: close the current voice collection device gathered, open the voice collection device of selection simultaneously.
Further, described processor specifically for: when detecting that described electronic equipment is transformed into described second place pattern, at least one voice collection device is selected from the current voice collection device gathered, and in other voice collection device from all voice collection device except the current voice collection device gathered, select at least one voice collection device, and carry out sound collection by the voice collection device selected.
Further, described processor also specifically for: close unselected voice collection device in the current voice collection device gathered, open simultaneously and select not to be in the voice collection device of unlatching.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
Owing to have employed when detecting that electronic equipment is transformed into second place pattern, at least two harvesters are selected from voice collection device, and carry out sound collection by the voice collection device selected, the voice collection device of this selection is in same level position when electronic equipment is in second place pattern, efficiently solve in prior art because user needs electronic equipment to overturn when using electronic equipment, and electronic equipment after the flop, the direction of two microphone settings changes to some extent, just exist after the mode position change of electronic equipment, the technical problem of the sound of better quality cannot be obtained, achieve electronic equipment when no matter being in which kind of mode position, Noise reduction can both be carried out, thus improve the quality of the sound of collection.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of dual microphone noise reduction in background technology;
Fig. 2 is the flow chart of the method for a kind of sound collection of the embodiment of the present application;
Fig. 3 is the structural representation of the first implementation arranging microphone in the embodiment of the present application on an electronic device;
Fig. 4 is the structural representation of the second implementation arranging microphone in the embodiment of the present application on an electronic device;
Fig. 5 is the flow chart of the method for the another kind of sound collection of the embodiment of the present application;
Fig. 6 is the module map of a kind of electronic equipment in the embodiment of the present application.
Embodiment
The embodiment of the present application adopts when the mode position of electronic equipment changes, select on an electronic device to open be in this mode position time horizontally disposed voice collection device carry out sound collection, thus achieve electronic equipment when no matter being in which kind of mode position, can both Noise reduction be carried out, improve the quality of the sound of collection.
Technical scheme in the embodiment of the present application is solve after the above-mentioned mode position at electronic equipment changes, can not the technical problem of voice messaging of Obtaining Accurate user, and general thought is as follows:
In the electronic equipment with speech identifying function, be provided with at least three voice acquisition devices, when electronic equipment is when being in primary importance pattern, that is, this electronic equipment is in traditional show state of notebook, when horizontal screen display is shown, detect that the show state of this electronic equipment changes, change into second place pattern, namely dull and stereotyped show state, namely perpendicular screen display is shown, so, in the voice acquisition device of this electronic equipment, just select at least two voice devices to carry out voice collecting, the principle selected is, require that this at least two each and every one voice acquisition device is horizontally disposed, like this, electronic equipment is made no matter to be in which kind of mode position, noise reduction can be carried out to the voice messaging of the user obtained, thus obtain voice messaging accurately.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete execution mode, technique scheme is described in detail.
As shown in Figure 2, the method for a kind of information processing that the embodiment of the present application provides, described method is applied to be had in the electronic equipment of at least three voice collection device, comprising:
S201, when described electronic equipment is in primary importance pattern, detect described electronic equipment whether by described primary importance patten transformation to second place pattern;
S202, when detecting that described electronic equipment is transformed into described second place pattern, at least two voice collection device are selected from all voice collection device, and carry out sound collection by the voice collection device selected, the voice collection device wherein selected is in same level position when described electronic equipment is in second place pattern.
In a particular embodiment, be described for notebook computer, first this primary importance pattern can be specifically: when this notebook computer is in traditional notebook show state, the namely show state of horizontal screen.Under the notebook show state that this is traditional, the display screen of notebook is in primary importance pattern.Meanwhile, under the primary importance mode state of electronic equipment at this moment, detect this primary importance pattern and whether be transformed into second place pattern.
In S201, when electronic equipment is in primary importance pattern, be by arrange gravity sensitive device on an electronic device detect described electronic equipment whether by described primary importance patten transformation to described second place pattern.
Then, perform S202, concrete, S202 has two kinds of implementations:
The first implementation of S202, when electronic equipment by primary importance patten transformation to the second place pattern time, in other voice collection device from all voice collection device except the current voice collection device gathered, select at least two voice collection device, and undertaken in the process of sound collection by the voice collection device selected, close the current voice collection device gathered, open the voice collection device of selection simultaneously.
In a particular embodiment, as shown in Figure 3, be provided with 4 voice collection device on the electronic equipment, namely 4 microphones, as shown in Figure 3, wherein, two microphones are horizontally set on directly over this electronic equipment display unit concrete setting position, distance between these two microphones is about 6 ~ 10cm, can ensure the sector region of 60 degree that the preset range of this two microphone institutes radiation is offered greatly on the direction by two microphone line middle point vertical like this.Two other microphone is vertically arranged on the centre position, right side of this display unit, can ensure when this electronic equipment turn 90 degrees use in dextrorotation, or when being rotated counterclockwise 90 degree of uses, these two microphones are horizontally disposed too, and now these two microphones collect voice messagings preset range equally with in the sector region of the direction of these two microphone line middle point vertical is offered about 50 degree.
Concrete, first, electronic equipment is when primary importance pattern, that open is microphone A and microphone B, now, be second place pattern by electronic equipment primary importance patten transformation, therefore, with regard to mute microphone (MIC) A and microphone B, then, microphone C and microphone D is opened, and, electronic equipment at the second mode position time, microphone C and microphone D is horizontally disposed.
In the application's execution mode, the preset range of two microphone institutes radiation is not merely limited in the above-mentioned angular range mentioned, and can change according to actual conditions to preset range.
In the setting position of above-mentioned microphone, due to electronic equipment by notebook show state and primary importance patten transformation to panel computer show state and the second place pattern time, the distance difference to some extent of user and electronic equipment, wherein, when electronic equipment is primary importance pattern, namely during traditional notebook display mode, the distance of the plane at the place of user distance display unit is than when being second place pattern when electronic equipment, namely, during panel computer display mode, the distance of the plane at user distance display unit place is larger.Therefore, electronic equipment is when second place pattern, and the distance between the position that microphone is arranged can be a little bit smaller a little, can ensure that microphone can mask the acoustic information outside preset range equally, can Noise reduction be carried out, thus improve the quality of sound collection.
In the second implementation of S202, when detecting that this electronic equipment is transformed into this second place pattern, at least one voice collection device is selected from the current voice collection device gathered, and in other voice collection device from all voice collection device except the current voice collection device gathered, select at least one voice collection device, and carry out sound collection by the voice collection device selected; At this moment, close unselected voice collection device in the current voice collection device gathered, open the voice collection device selecting not to be in unlatching simultaneously.
In a particular embodiment, as shown in Figure 4,3 voice collection device are set on the electronic equipment, namely 3 microphones, concrete setting position as shown in Figure 4, wherein, has two microphones to be arranged on directly over electronic equipment display unit, i.e. microphone A and microphone B, the distance that these two microphones are arranged is 6 ~ 10cm.Another one microphone is arranged in the vertical direction of above-mentioned two microphone lines, i.e. microphone E, yes can be arranged on top or the below of one of them microphone in above-mentioned two microphones, if microphone E is the below being arranged on microphone A, so, from the distance of microphone A greatly about 3 ~ 5cm.
Like this, when electronic equipment by the primary importance patten transformation of traditional notebook pattern to the second place pattern of panel computer time, processor can be selected to open microphone E, simultaneously, retain the opening being positioned at the microphone A above microphone E that electronic equipment is opened when primary importance pattern, and, close the microphone B of electronic equipment when primary importance pattern, now, electronic equipment is when second place pattern, microphone A and microphone E is in opening, and these two microphones are horizontal when this second place pattern, microphone B is in closed condition.Like this, can ensure that electronic equipment is when second place pattern, two microphones of unlatching are in horizontal direction, can acoustic information outside filtering preset range, carry out Noise reduction, thus improve the quality of sound collection.
The benefit of the second implementation is adopted to be, the quantity of the voice collection device used in the second implementation will be lacked compared with the quantity of the voice collection device used in the first implementation, the quantity of voice collection device can be saved like this, simultaneously cost-saving.Therefore, in the execution mode of the application, preferably mode adopts the second implementation.
Certainly, in the application's execution mode, be not limited in two kinds of above-mentioned implementations, therefore, being also just not limited only to the above-mentioned set-up mode when arranging voice collection device, can also be the voice collection device of the setting of tilting, like this, when user is when using the electronic equipment tilted, the voice collection device of inclination also can carry out Noise reduction, thus improves the quality of sound collection.
And in the application's execution mode, being also not limited in two voice collection device of the above-mentioned each unlatching mentioned, can also be 3 or more, thus make the scope preset more accurate.
With a concrete example, the solution of the present invention is described below.Wherein, voice collection device selected in introduction below comprises at least one at least one in the voice collection device that electronic equipment working when primary importance pattern and other voice collection device except the voice collection device used during the first mode position, another implementing procedure similar with following example, just repeats no more at this.
The method of a kind of information processing that the embodiment of the present application also provides, as shown in Figure 5, the method is applied at least three voice collection device, and the method process step comprises:
S501, when described electronic equipment is in primary importance pattern, detect described electronic equipment whether by described primary importance patten transformation to second place pattern; If described electronic equipment detected by primary importance patten transformation to second place pattern, then perform S502, otherwise re-execute S501;
S502, at least one voice collection device is selected from the current voice collection device gathered, and in other voice collection device from all voice collection device except the current voice collection device gathered, select at least one voice collection device, and carry out sound collection by the voice collection device selected, then perform S503:
S503, closes unselected voice collection device in the current voice collection device gathered, and opens the voice collection device selecting not to be in unlatching simultaneously.
The embodiment of the present application additionally provides a kind of electronic equipment corresponding with said method, and as shown in Figure 6, wherein, this electronic equipment comprises: processor 601 and at least three voice collection device 602 be connected with processor 601;
Processor 601 specifically for:
When described electronic equipment is in primary importance pattern, detect described electronic equipment whether by described primary importance patten transformation to second place pattern; When detecting that described electronic equipment is transformed into described second place pattern, at least two voice collection device 602 are selected from all voice collection device 602, and carry out sound collection by the voice collection device 602 selected, the voice collection device 602 wherein selected is in same level position when described electronic equipment is in second place pattern.
This electronic equipment also comprises: the gravity sensitive device 603 be connected with this processor 601, wherein, this processor 601 specifically for: by described gravity sensitive device 603 detect described electronic equipment whether by described primary importance patten transformation to described second place pattern.
In the embodiment of the application, this processor 601 specifically for: when detecting that described electronic equipment is transformed into described second place pattern, in other voice collection device 602 from all voice collection device except the current voice collection device gathered, select at least two voice collection device 602, and carry out sound collection by the voice collection device 602 selected.
Processor 601 specifically for: close the current voice collection device 602 gathered, open the voice collection device 602 of selection simultaneously.
In another embodiment of the application, this processor 601 specifically for: when detecting that described electronic equipment is transformed into described second place pattern, at least one voice collection device 602 is selected from the current voice collection device 602 gathered, and in other voice collection device 602 from all voice collection device 602 except the current voice collection device 602 gathered, select at least one voice collection device 602, and carry out sound collection by the voice collection device 602 selected.
Processor 601 specifically for: close unselected voice collection device 602 in the current voice collection device 602 gathered, simultaneously open select the voice collection device 602 not being in unlatching.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
Owing to have employed when detecting that electronic equipment is transformed into second place pattern, at least two harvesters are selected from voice collection device, and carry out sound collection by the voice collection device selected, the voice collection device of this selection is in same level position when electronic equipment is in second place pattern, efficiently solve in prior art because user needs electronic equipment to overturn when using electronic equipment, and electronic equipment after the flop, the direction of two microphone settings changes to some extent, just exist after the mode position change of electronic equipment, the technical problem of the sound of better quality cannot be obtained, achieve electronic equipment when no matter being in which kind of mode position, Noise reduction can both be carried out, thus improve the quality of the sound of collection.
Those skilled in the art should understand, the embodiment of the application can be provided as method, system or computer program.Therefore, the application can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the application can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The application describes with reference to according to the flow chart of the method for the embodiment of the present application, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although described the preferred embodiment of the application, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various change and modification to the application and not depart from the spirit and scope of the application.Like this, if these amendments of the application and modification belong within the scope of the application's claim and equivalent technologies thereof, then the application is also intended to comprise these change and modification.
Claims (12)
1. a method for information processing, is characterized in that, described method is applied to be had in the electronic equipment of at least three voice collection device, and described method comprises:
When described electronic equipment is in primary importance pattern, detect described electronic equipment whether by described primary importance patten transformation to second place pattern;
When detecting that described electronic equipment is transformed into described second place pattern, at least two voice collection device are selected from all voice collection device, and carry out sound collection by the voice collection device selected, the voice collection device wherein selected is in same level position when described electronic equipment is in second place pattern.
2. the method for claim 1, is characterized in that, the described electronic equipment of described detection whether by described primary importance patten transformation to second place pattern, be specially:
By the gravity sensitive device be arranged on described electronic equipment detect described electronic equipment whether by described primary importance patten transformation to described second place pattern.
3. method as claimed in claim 1 or 2, is characterized in that, when detecting that described electronic equipment is transformed into described second place pattern, selecting at least two voice collection device to carry out sound collection, be specially from described voice collection device:
When detecting that described electronic equipment is transformed into described second place pattern, in other voice collection device from all voice collection device except the current voice collection device gathered, select at least two voice collection device, and carry out sound collection by the voice collection device selected.
4. method as claimed in claim 3, is characterized in that, the described voice collection device by selecting, comprising:
Close the current voice collection device gathered, open the voice collection device of selection simultaneously.
5. method as claimed in claim 1 or 2, is characterized in that, when detecting that described electronic equipment is transformed into described second place pattern, selecting at least two voice collection device to carry out sound collection, be specially from described voice collection device:
When detecting that described electronic equipment is transformed into described second place pattern, at least one voice collection device is selected from the current voice collection device gathered, and in other voice collection device from all voice collection device except the current voice collection device gathered, select at least one voice collection device, and carry out sound collection by the voice collection device selected.
6. method as claimed in claim 5, is characterized in that, the described voice collection device by selecting carries out sound collection, comprising:
Close unselected voice collection device in the current voice collection device gathered, open the voice collection device selecting not to be in unlatching simultaneously.
7. an electronic equipment, is characterized in that, described electronic equipment comprises: processor and at least three voice collection device be connected with processor;
Described processor, for when described electronic equipment is in primary importance pattern, detect described electronic equipment whether by described primary importance patten transformation to second place pattern; When detecting that described electronic equipment is transformed into described second place pattern, at least two voice collection device are selected from all voice collection device, and carry out sound collection by the voice collection device selected, the voice collection device wherein selected is in same level position when described electronic equipment is in second place pattern.
8. electronic equipment as claimed in claim 7, it is characterized in that, described electronic equipment also comprises: the gravity sensitive device be connected with described processor;
Described processor specifically for:
By described gravity sensitive device detect described electronic equipment whether by described primary importance patten transformation to described second place pattern.
9. electronic equipment as claimed in claim 7, is characterized in that, described processor specifically for:
When detecting that described electronic equipment is transformed into described second place pattern, in other voice collection device from all voice collection device except the current voice collection device gathered, select at least two voice collection device, and carry out sound collection by the voice collection device selected.
10. electronic equipment as claimed in claim 9, is characterized in that, described processor also specifically for:
Close the current voice collection device gathered, open the voice collection device of selection simultaneously.
11. electronic equipments as claimed in claim 7, is characterized in that, described processor specifically for:
When detecting that described electronic equipment is transformed into described second place pattern, at least one voice collection device is selected from the current voice collection device gathered, and in other voice collection device from all voice collection device except the current voice collection device gathered, select at least one voice collection device, and carry out sound collection by the voice collection device selected.
12. electronic equipments as claimed in claim 11, is characterized in that, described processor also specifically for:
Close unselected voice collection device in the current voice collection device gathered, open the voice collection device selecting not to be in unlatching simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310376691.0A CN104427436A (en) | 2013-08-26 | 2013-08-26 | Information processing method and electronic equipment |
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| CN201310376691.0A CN104427436A (en) | 2013-08-26 | 2013-08-26 | Information processing method and electronic equipment |
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| CN104427436A true CN104427436A (en) | 2015-03-18 |
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| CN201310376691.0A Pending CN104427436A (en) | 2013-08-26 | 2013-08-26 | Information processing method and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110677753A (en) * | 2019-09-24 | 2020-01-10 | 深圳市中擎创科技有限公司 | Multi-receiver voice receiving system and method based on tablet computer |
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| WO2010071157A1 (en) * | 2008-12-17 | 2010-06-24 | ヤマハ株式会社 | Sound collection device |
| WO2012061151A1 (en) * | 2010-10-25 | 2012-05-10 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for orientation-sensitive recording control |
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| CN1604010A (en) * | 2003-09-30 | 2005-04-06 | 株式会社东芝 | Electronic apparatus capable of always executing noise canceling and voice input method for the apparatus |
| WO2010071157A1 (en) * | 2008-12-17 | 2010-06-24 | ヤマハ株式会社 | Sound collection device |
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