CN108650538A - It is a kind of to record near field audio and far field video method and system simultaneously - Google Patents
It is a kind of to record near field audio and far field video method and system simultaneously Download PDFInfo
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- CN108650538A CN108650538A CN201810292421.4A CN201810292421A CN108650538A CN 108650538 A CN108650538 A CN 108650538A CN 201810292421 A CN201810292421 A CN 201810292421A CN 108650538 A CN108650538 A CN 108650538A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000006870 function Effects 0.000 description 6
- 238000004321 preservation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42203—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] sound input device, e.g. microphone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
The present invention discloses a kind of while recording near field audio and far field video method and system, and this method includes：Set volume threshold and time threshold；It receives to open and records sound control signal；The audio-frequency information at real-time reception current time；Judge whether the audio-frequency information at the current time received in time threshold is more than setting volume threshold；If so, the video information that the audio-frequency information and video capture device of the subsequent time that real-time reception audio capturing equipment is recorded are recorded；Otherwise continue to judge whether the audio-frequency information at current time is more than setting volume threshold；The audio-frequency information at real-time update current time；Whether the audio-frequency information at the current time of real-time reception is less than setting volume threshold in real-time judge time threshold；If so, stopping receiving the audio-frequency information and video information of subsequent time；Otherwise it continues to.The near field audio and far field video of Same Scene position same period can be recorded simultaneously using the above method or system, and acoustic control opens and records and terminate to record.
Description
Technical field
The present invention relates to audio frequency and videos to record field, and near field audio and far field video side are recorded simultaneously more particularly to a kind of
Method and system.
Background technology
The method for receiving audio and video data at present is substantially software and recorded video by using recording audio
Software, the built-in function of recording audio of the software of some recorded videos, the video camera by being built-in with microphone is recorded regards
Also it recorded audio while frequency, but a kind of software passes through camera shooting while by microphone records near field audio not yet
Machine records far field video.And the software of existing many recording audios cannot all be recorded by acoustic control to open, but pass through one
Key is recorded and the function of timing recording, and a key sound-recording function needs to trigger recording, specific workplace can be given to make troubles, fixed
When sound-recording function need be arranged recording time, recorded information can be influenced, above two record type cannot be according to location information
And the time, automatic trigger recording.
Invention content
Near field audio and far field video method and system are recorded the object of the present invention is to provide a kind of simultaneously.Solving cannot
The problem of being opened by acoustic control while recording the near field audio and far field video of same period of Same Scene position.
To achieve the above object, the present invention provides following schemes：
It is a kind of to record near field audio and far field video method simultaneously, including：
Set volume threshold and time threshold；
It receives the unlatching that input equipment is sent and records sound control signal；
The audio-frequency information at the current time that real-time reception audio capturing equipment is recorded；
Judge whether the audio-frequency information at the current time received in the time threshold is more than the setting volume threshold
Value；
If the audio-frequency information at current time is more than the setting volume threshold, the record of real-time reception audio capturing equipment
The video information that the audio-frequency information and video capture device of the subsequent time of system are recorded；Otherwise continue to judge the described of current time
Whether audio-frequency information is more than the setting volume threshold；
The audio-frequency information at current time described in real-time update；
Whether the audio-frequency information at the current time of real-time reception is less than described set in time threshold described in real-time judge
Determine volume threshold；
If so, stopping receiving the audio-frequency information of subsequent time and the video information；Otherwise it continues to.
Optionally, further include：
The output format and storing path of the audio-frequency information and the video information are set；
The audio-frequency information of the subsequent time and video information are stored to the storing path, or press the output format
The audio-frequency information of the subsequent time and video information are sent to cloud server.
Optionally, further include before the audio-frequency information that the real-time reception audio capturing equipment is recorded：
When studio has multiple audio capturing equipment and multiple video capture devices, determination needs the audio of work to catch
Obtain the position of equipment and video capture device.
Optionally, described to store the audio-frequency information of the subsequent time and video information to the storing path, or press
The audio-frequency information of the subsequent time and video information are sent to cloud server and specifically included by the output format：
Judge whether that the high in the clouds that is sent to the audio-frequency information and the video information for receiving input equipment transmission takes
The order of business device；
If so, the audio-frequency information and the video information are sent to cloud server；
Otherwise, the audio-frequency information and video information storage are named to the storing path and with date format.
It is a kind of to record near field audio and far field video system simultaneously, including：
Threshold setting module, for setting volume threshold and time threshold；
Sound control signal is recorded in open signal receiving module, the unlatching for receiving input equipment transmission；
Information receiving module, the audio-frequency information for the current time that real-time reception audio capturing equipment is recorded；
Start to record judgment module, for judging that the audio-frequency information at the current time received in the time threshold is
It is no to be more than the setting volume threshold；
Receiving module, if the audio-frequency information for current time is more than the setting volume threshold, real-time reception
The video information that the audio-frequency information and video capture device for the subsequent time that audio capturing equipment is recorded are recorded；Otherwise continue
Judge whether the audio-frequency information at current time is more than the setting volume threshold；
Update module, the audio-frequency information for current time described in real-time update；
Terminate to record judgment module, the sound for the current time of real-time reception in time threshold described in real-time judge
Whether frequency information is less than the setting volume threshold；
Stop recording module, be used for if so, stopping receiving the audio-frequency information of subsequent time and the video information；
Otherwise continue to record.
Optionally, further include：
Format path setup module, the output format for the audio-frequency information and the video information to be arranged and preservation road
Diameter；
Data processing module, for the audio-frequency information of the subsequent time and the video information to be pressed the output format
It stores to the storing path.
Optionally, further include：
Equipment determining module, for when studio has multiple audio capturing equipment and multiple video capture devices, really
The position of fixed the audio capturing equipment and the video capture device.
Optionally, the data processing module specifically includes：
Command determination unit, for judge whether to receive input equipment transmission by the audio-frequency information and the video
Information is sent to the order of cloud server；
Uploading unit, for the audio-frequency information and the video information to be sent to cloud server；
Storage unit, for storing the audio-frequency information and the video information to the storing path and with date lattice
Formula is named.
It is a kind of to record near field audio and far field video system simultaneously, including：
Audio capturing equipment, the audio-frequency information for acquiring studio；
Video capture device, the video information for acquiring studio；
Control device is recorded, is connected with the audio capturing equipment, the video capture device, for receiving the sound
The audio-frequency information of frequency capture device acquisition, the video information of video capture device acquisition；
Input equipment is connected with the recording control device, is set for sending external control command to recording control
It is standby.
According to specific embodiment provided by the invention, the invention discloses following technique effects：
The present invention is recorded simultaneously by two equipment of audio capturing equipment (microphone) and video capture device (video camera)
The near field audio of Same Scene position same period and far field video, and acoustic control opens and records and terminate to record, when having captured matchmaker
Volume data selects to be in the online media data for sending the media data captured or selecting storage capture to specified path later.
It is effective to avoid in recording process while operating the operational trouble that two softwares are brought.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that the embodiment of the present invention records near field audio and far field video method flow chart simultaneously；
Fig. 2 is that the embodiment of the present invention records near field audio and far field video system module map simultaneously；
Fig. 3 is that the embodiment of the present invention records near field audio and far field video system configuration figure simultaneously.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Near field audio and far field video method and system are recorded the object of the present invention is to provide a kind of simultaneously.Solving cannot
The problem of being opened by acoustic control while recording the near field audio and far field video of same period of Same Scene position.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is that the embodiment of the present invention records near field audio and far field video method flow chart simultaneously.Referring to Fig. 1, Yi Zhongtong
When record near field audio and far field video method, including：
Step 101：Set volume threshold and time threshold；
Step 102：It receives the unlatching that input equipment is sent and records sound control signal；
Step 103：The audio-frequency information at the current time that real-time reception audio capturing equipment is recorded；
Step 104：Judge whether the audio-frequency information at the current time received in the time threshold is more than described set
Determine volume threshold；
Step 105：If the audio-frequency information at current time is more than the setting volume threshold, real-time reception audio is caught
Obtain the video information of the audio-frequency information and video capture device recording of the subsequent time of equipment recording；When otherwise continuing to judge current
Whether the audio-frequency information carved is more than the setting volume threshold；
Step 106：The audio-frequency information at current time described in real-time update；
Step 107：Whether the audio-frequency information at the current time of real-time reception is small in time threshold described in real-time judge
In the setting volume threshold；
Step 108：If so, stopping receiving the audio-frequency information of subsequent time and the video information；Otherwise continue
It receives.
The record of audio and video is carried out by audio capturing equipment and video capture device acoustic control simultaneously using the above method
System, and audio and video store or upload accordingly.
Wherein, the method for the present invention further includes：Output format and the preservation of the audio-frequency information and the video information are set
Path；
The audio-frequency information of the subsequent time and video information are stored to the storing path, or press the output format
The audio-frequency information of the subsequent time and video information are sent to cloud server.
Further include before step 103：When studio has multiple audio capturing equipment and multiple video capture devices, really
Surely audio capturing equipment and the position of video capture device of work are needed.
Wherein, the audio-frequency information of the subsequent time and video information are stored to the storing path, or by described defeated
Go out format the audio-frequency information of the subsequent time and video information be sent to cloud server to specifically include：
Judge whether that the high in the clouds that is sent to the audio-frequency information and the video information for receiving input equipment transmission takes
The order of business device；
If so, the audio-frequency information and the video information are sent to cloud server；
Otherwise, the audio-frequency information and video information storage are named to the storing path and with date format.
Fig. 2 is that the embodiment of the present invention records near field audio and far field video system module map simultaneously.Referring to Fig. 2, Yi Zhongtong
When record near field audio and far field video system, including：
Threshold setting module 201, for setting volume threshold and time threshold；
Sound control signal is recorded in open signal receiving module 202, the unlatching for receiving input equipment transmission；
Information receiving module 203, the audio-frequency information for the current time that real-time reception audio capturing equipment is recorded；
Start to record judgment module 204, the audio letter at the current time for judging to receive in the time threshold
Whether breath is more than the setting volume threshold；
Receiving module 205 connects in real time if the audio-frequency information for current time is more than the setting volume threshold
The video information that the audio-frequency information and video capture device for the subsequent time that radio reception frequency capture device is recorded are recorded；Otherwise after
Whether the continuous audio-frequency information for judging current time is more than the setting volume threshold；
Update module 206, the audio-frequency information for current time described in real-time update；
Terminate to record judgment module 207, the institute for the current time of real-time reception in time threshold described in real-time judge
State whether audio-frequency information is less than the setting volume threshold；
Stop recording module 208, be used for if so, stopping receiving the audio-frequency information and video letter of subsequent time
Breath；Otherwise continue to record.
The near field audio and far field video of Same Scene position same period can be recorded simultaneously using above system, and
Acoustic control function acoustic control is introduced in acoustic control module to open recording and terminate to record, and is effectively avoided when testing simultaneously
Operation recording software and record near field audio and former field video and the operational trouble brought that video software records the same period.
If selecting sending module after having captured media data, just in the online media data for sending capture, if selection storage
Module, the media data that just storage captures to local disk.
Wherein, present system further includes：
Format path setup module, the output format for the audio-frequency information and the video information to be arranged and preservation road
Diameter；
Data processing module, for the audio-frequency information of the subsequent time and the video information to be pressed the output format
It stores to the storing path.
Equipment determining module, for when studio has multiple audio capturing equipment and multiple video capture devices, really
The position of fixed the audio capturing equipment and the video capture device.
Wherein, data processing module specifically includes：
Command determination unit, for judge whether to receive input equipment transmission by the audio-frequency information and the video
Information is sent to the order of cloud server；
Uploading unit, for the audio-frequency information and the video information to be sent to cloud server；
Storage unit, for storing the audio-frequency information and the video information to the storing path and with date lattice
Formula is named.
Fig. 3 is that the embodiment of the present invention records near field audio and far field video system configuration figure simultaneously.Referring to Fig. 3, Yi Zhongtong
When record near field audio and far field video system, including：
Audio capturing equipment 302, the audio-frequency information for acquiring studio；
Video capture device 303, the video information for acquiring studio；
Control device 301 is recorded, is connected with the audio capturing equipment 302, the video capture device 303, is used for
Receive the video letter that the audio-frequency information, the video capture device 303 that the audio capturing equipment 302 acquires acquire
Breath；
Input equipment 304 is connected with the recording control device 301, for sending external control command to the recording
Control device 301.
The near field audio and far field video of Same Scene position same period can be recorded simultaneously using above system, and
It introduces acoustic control function acoustic control in acoustic control module to open recording and terminate to record, if selecting hair after having captured media data
Module is sent, just in the online media data for sending and capturing, if selection memory module, just the media data of storage capture is to locally
Disk.
Lower mask body introduces the method for recording of near field audio and far field video in the present invention：
After computer connects upper two capture devices of microphone and video camera by USB interface, required for positioning
Capture device obtains the information of capture device, the position of capture device is obtained from information, and set the audio format to be exported
And video format.After preparation is completed, acoustic control recording mode is just opened, within a certain period of time when being detected in microphone
Sound higher than setting volume threshold values when system begin through microphone records audio, while opening recorded video thread.
Just terminate to record when the input audio detected in microphone is less than the volume threshold values set in certain time, here certain
Time and volume threshold values are set in a program before all acquiring.Acquire media data during if the system detects that
Without sound typing, system can judge whether speech is over, and be inputted from microphone whithin a period of time
Speech is considered as when sound is less than the volume threshold values set to terminate.If speech has finished on, system will stop to media
The capture of data, if speech is not over, system continues to return to gathered data.When program stopped capture media data it
Afterwards, system determines whether to send the media data of capture in network, can be automatic if not sending media data system in network
The media data of capture is saved under the path of setting and is named with date format.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.For system disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is said referring to method part
It is bright.
Principle and implementation of the present invention are described for specific case used herein, and above example is said
The bright method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (9)
1. a kind of recording near field audio and far field video method simultaneously, which is characterized in that including：
Set volume threshold and time threshold；
It receives the unlatching that input equipment is sent and records sound control signal；
The audio-frequency information at the current time that real-time reception audio capturing equipment is recorded；
Judge whether the audio-frequency information at the current time received in the time threshold is more than the setting volume threshold；
If the audio-frequency information at current time is more than the setting volume threshold, what real-time reception audio capturing equipment was recorded
The video information that the audio-frequency information and video capture device of subsequent time are recorded；Otherwise continue to judge the audio at current time
Whether information is more than the setting volume threshold；
The audio-frequency information at current time described in real-time update；
Whether the audio-frequency information at the current time of real-time reception is less than the setting sound in time threshold described in real-time judge
Measure threshold value；
If so, stopping receiving the audio-frequency information of subsequent time and the video information；Otherwise it continues to.
2. the method according to claim 1 for recording near field audio and far field video, which is characterized in that further include：
The output format and storing path of the audio-frequency information and the video information are set；
The audio-frequency information of the subsequent time and video information are stored to the storing path, or press the output format by institute
The audio-frequency information and video information for stating subsequent time are sent to cloud server.
3. the method according to claim 1 for recording near field audio and far field video, which is characterized in that the real-time reception
Further include before the audio-frequency information that audio capturing equipment is recorded：
When studio has multiple audio capturing equipment and multiple video capture devices, determination needs the audio capturing of work to set
Standby and video capture device position.
4. it is according to claim 2 record near field audio and far field video method, which is characterized in that it is described will be described under
The audio-frequency information and video information at one moment are stored to the storing path, or by the output format by the subsequent time
Audio-frequency information and video information are sent to cloud server and specifically include：
Judge whether to receive input equipment transmission is sent to cloud server by the audio-frequency information and the video information
Order；
If so, the audio-frequency information and the video information are sent to cloud server；
Otherwise, the audio-frequency information and video information storage are named to the storing path and with date format.
5. a kind of recording near field audio and far field video system simultaneously, which is characterized in that including：
Threshold setting module, for setting volume threshold and time threshold；
Sound control signal is recorded in open signal receiving module, the unlatching for receiving input equipment transmission；
Information receiving module, the audio-frequency information for the current time that real-time reception audio capturing equipment is recorded；
Start to record judgment module, whether the audio-frequency information at the current time for judging to receive in the time threshold is big
In the setting volume threshold；
Receiving module, if the audio-frequency information for current time is more than the setting volume threshold, real-time reception audio
The video information that the audio-frequency information and video capture device for the subsequent time that capture device is recorded are recorded；Otherwise continue to judge
Whether the audio-frequency information at current time is more than the setting volume threshold；
Update module, the audio-frequency information for current time described in real-time update；
Terminate to record judgment module, the audio letter for the current time of real-time reception in time threshold described in real-time judge
Whether breath is less than the setting volume threshold；
Stop recording module, be used for if so, stopping receiving the audio-frequency information of subsequent time and the video information；Otherwise
Continue to record.
6. recording near field audio according to claim 5 and far field video system, which is characterized in that further include：
Format path setup module, output format and storing path for the audio-frequency information and the video information to be arranged；
Data processing module, for storing the audio-frequency information of the subsequent time and the video information by the output format
To the storing path.
7. recording near field audio according to claim 5 and far field video system, which is characterized in that further include：
Equipment determining module, for when studio has multiple audio capturing equipment and multiple video capture devices, determining institute
State the position of audio capturing equipment and the video capture device.
8. recording near field audio according to claim 6 and far field video system, which is characterized in that the data processing mould
Block specifically includes：
Command determination unit, for judge whether to receive input equipment transmission by the audio-frequency information and the video information
It is sent to the order of cloud server；
Uploading unit, for the audio-frequency information and the video information to be sent to cloud server；
Storage unit, for ordering to the storing path and with date format the audio-frequency information and video information storage
Name.
9. a kind of recording near field audio and far field video system simultaneously, which is characterized in that including：
Audio capturing equipment, the audio-frequency information for acquiring studio；
Video capture device, the video information for acquiring studio；
Control device is recorded, is connected with the audio capturing equipment, the video capture device, is caught for receiving the audio
Obtain the audio-frequency information of equipment acquisition, the video information of video capture device acquisition；
Input equipment is connected with the recording control device, for sending external control command to the recording control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292421.4A CN108650538B (en) | 2018-03-30 | 2018-03-30 | Method and system for simultaneously recording near-field audio and far-field video |
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| CN201810292421.4A CN108650538B (en) | 2018-03-30 | 2018-03-30 | Method and system for simultaneously recording near-field audio and far-field video |
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| CN108650538B CN108650538B (en) | 2020-09-18 |
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| CN109859773A (en) * | 2019-02-14 | 2019-06-07 | 北京儒博科技有限公司 | A kind of method for recording of sound, device, storage medium and electronic equipment |
| CN110919699A (en) * | 2018-11-30 | 2020-03-27 | 深圳前海达闼云端智能科技有限公司 | Audio-visual perception system and equipment and robot system |
| CN113099032A (en) * | 2021-03-29 | 2021-07-09 | 联想(北京)有限公司 | Information processing method and device, electronic equipment and storage medium |
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| CN106101734A (en) * | 2016-06-15 | 2016-11-09 | 广州科技职业技术学院 | The net cast method for recording of interaction classroom and system |
| CN107092461A (en) * | 2017-06-01 | 2017-08-25 | 深圳天珑无线科技有限公司 | The way of recording, device and computer-readable recording medium |
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| CN110919699B (en) * | 2018-11-30 | 2021-12-24 | 达闼机器人有限公司 | Audio-visual perception system and equipment and robot system |
| CN109859773A (en) * | 2019-02-14 | 2019-06-07 | 北京儒博科技有限公司 | A kind of method for recording of sound, device, storage medium and electronic equipment |
| CN109658758A (en) * | 2019-02-18 | 2019-04-19 | 西安科技大学 | A kind of computer accounting teaching simulation System |
| CN113099032A (en) * | 2021-03-29 | 2021-07-09 | 联想(北京)有限公司 | Information processing method and device, electronic equipment and storage medium |
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