CN214851543U

CN214851543U - Recording and broadcasting equipment

Info

Publication number: CN214851543U
Application number: CN202120561458.XU
Authority: CN
Inventors: 魏仑
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou kaidelian Intelligent Technology Co.,Ltd.
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-11-23
Anticipated expiration: 2031-03-18

Abstract

The embodiment of the application provides a recorded broadcast equipment, uses in the normalized classroom of information-based teaching, through the built-in microphone of recorded broadcast equipment to and the wireless microphone that wireless receiving module connected, audio data when giving lessons to the teacher gathers, can also carry out interdynamic through the mode of built-in audio playback. The recorded broadcast equipment that this application embodiment provided integrates more, no longer need be connected with external equipment through a large amount of data lines when using, has reduced recorded broadcast equipment overall structure's when using complexity, is favorable to recorded broadcast equipment's normalized use, has improved recorded broadcast equipment and has used the availability factor when giving lessons content in the classroom and record.

Description

Recording and broadcasting equipment

Technical Field

The embodiment of the application relates to the electronic technology, in particular to recording and broadcasting equipment.

Background

With the continuous development of electronic technology and the continuous emphasis on education, the informatization teaching realized by electronic equipment becomes a new development trend, and the most common mode of informatization teaching is to record the teaching process of teachers in classrooms through devices such as recording and broadcasting equipment, so that students not in the classrooms can watch the teaching contents through live or recorded audio and video data.

In the prior art, in order to realize the collection and other processing of audio and video data in a classroom, a plurality of different external devices need to be additionally arranged, and the external devices are respectively connected with recording and broadcasting devices, so that the collection of teaching contents in the classroom can be realized.

Adopt prior art, all need connect multiple external equipment when recorded broadcast equipment uses at every turn, the installation operation that has caused recorded broadcast equipment overall structure is comparatively complicated, is unfavorable for the normalized use of recorded broadcast equipment, and then has influenced the availability factor that recorded broadcast equipment used when the content of giving lessons in the classroom is recorded.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides recorded broadcast equipment to the installation operation of solving recorded broadcast equipment overall structure is comparatively complicated, uses the lower technical problem of availability factor when recording in the classroom teaching content.

The embodiment of the application provides a recorded broadcast equipment, includes: the device comprises a control module, an audio processing module, a microphone, a loudspeaker and a wireless receiving module; the control module is connected with the audio processing module, and the audio processing module is also respectively connected with the microphone, the loudspeaker and the wireless receiving module; the microphone is configured to collect first audio data of the environment where the recording and playing equipment is located and transmit the first audio data to the audio processing module; the audio processing module is configured to process the first audio data and transmit the processed first audio data to the control module; the wireless receiving module is configured to receive second audio data from the wireless microphone and transmit the second audio data to the audio processing module; the audio processing module is configured to process the second audio data and transmit the second audio data to the control module; the control module is configured to transmit third audio data to be played to a speaker through the audio processing module, and the speaker is configured to play the third audio data.

In an embodiment of the present application, the recording and playing device further includes: the first camera device is connected with the control module; the first camera device is configured to collect first video data of an environment where the recording and playing equipment is located.

In an embodiment of the present application, the recording and playing device further includes: the at least one linear audio data LINE input/output interface is connected with the audio processing module and is configured to transmit the received fourth audio data to the audio processing module; and the at least one microphone audio data MIC input/output interface is connected with the audio processing module and is configured to transmit the received fifth audio data to the audio processing module.

In an embodiment of the present application, the at least one MIC input/output interface is specifically configured to connect the two omnidirectional pickup beam microphones and the two phantom-powered balanced microphones.

In an embodiment of the present application, the recording and playing device further includes: and the at least one high-definition multimedia interface HDMI input/output interface is connected with the control module and is configured to receive the second video data and transmit the second video data to the control module.

In an embodiment of the present application, the recording and playing device further includes: and the at least one Ethernet interface is connected with the control module and is configured to receive the third video data from the second camera and transmit the third video data to the control module.

In an embodiment of the present application, the microphone comprises a 6-microphone MIC array.

In an embodiment of the present application, the wireless receiving module includes a U-segment wireless microphone receiver.

In one embodiment of the present application, the audio processing module includes a DSP processor; the DSP processor is configured to perform echo cancellation AEC, automatic gain control AGC, automatic frequency control AFC, and/or active noise reduction ANR processing on the received audio data.

In an embodiment of the application, the control module is further configured to perform image processing on the received video data.

To sum up, this application embodiment provides a recorded broadcast equipment, uses in the normalized classroom of information-based teaching, through the built-in microphone of recorded broadcast equipment to and the wireless microphone that wireless receiving module connected, gather the audio data when giving lessons to the teacher, can also carry out the interdynamic through the mode of built-in audio playback. The recorded broadcast equipment that this application embodiment provided integrates more, no longer need be connected with external equipment through a large amount of data lines when using, has reduced recorded broadcast equipment overall structure's when using complexity, is favorable to recorded broadcast equipment's normalized use, has improved recorded broadcast equipment and has used the availability factor when giving lessons content in the classroom and record.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic diagram of an application scenario of the present application;

fig. 2 is a schematic diagram of a peripheral device for processing audio data by a recording and playing device;

fig. 3 is a schematic diagram of another peripheral device for processing audio data by a recording and playing apparatus;

fig. 4 is a schematic diagram of a peripheral device for processing video data by a recording and playing device;

fig. 5 is a schematic structural diagram of an embodiment of a recording and playing device provided in the present application;

fig. 6 is a schematic view of an application scenario of the recording and playing device provided in the present application;

fig. 7 is a schematic structural diagram of an embodiment of a recording and playing device provided in the present application;

fig. 8 is a schematic structural diagram of an embodiment of a recording and playing device provided in the present application;

fig. 9 is a schematic structural diagram of an embodiment of a recording and playing device provided in the present application;

fig. 10 is a schematic structural diagram of an embodiment of a recording and playing device provided in the present application;

fig. 11 is a schematic view of an application scenario of the recording and playing device provided in the present application;

fig. 12 is a schematic structural diagram of a recording and playing device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a schematic diagram of an application scenario of the present application, in which with the continuous development of electronic technology and the continuous emphasis on education, information-based teaching implemented by electronic devices becomes a new development trend, so that students in different regions can enjoy high-quality education and teaching resources. The most common way of information-based teaching is to record the teaching process of a teacher in a classroom through recording and broadcasting devices and other devices, so that students who are not in the classroom can watch the teaching contents through recorded audio and video data. Meanwhile, in order to improve the recording effect, provide more immersive, intuitive and real field effects for the viewers, and realize the interaction between the teaching teacher and the remote viewers through the recording and broadcasting equipment, the recording and broadcasting equipment generally needs to be connected with a plurality of sensors for processing audio and video to acquire and broadcast audio and video data.

In the usage scenario of the recording and broadcasting device shown in fig. 1, a teacher a gives lessons to a plurality of students B in a classroom, and at this time, the teaching content of the teacher a and the interactive content of the students B in the classroom can be recorded through the recording and broadcasting device 10. This application can be applicable to normalized classroom environment, for example, the long b in classroom is 7 meters, wide a is 9 meters, and the height is 3.8 meters to sound field environment does not have acoustics fitment in the classroom, and acoustics measurement index RT60>1.5 seconds(s), and simultaneously, the sound reinforcement acoustic pressure demand is: maximum sound pressure: 85dBSPL @1m (300Hz, 500Hz, 1KHz, 2Khz, 10KHz average), the speaker output rated power is 15W.

Fig. 2-4 show the peripheral devices that the recording and playing device 10 needs to connect to in order to meet the requirements of acquiring, outputting, processing and playing the audio/video data in the scenario shown in fig. 1 in the above normalized scenario, and the corresponding connection relationship.

Fig. 2 is a schematic diagram of a peripheral device for processing audio data by a recording and playing device, wherein in the scenario shown in fig. 1, in order to realize the collection and playing of audio data, a microphone 11 and a speaker 12 need to be disposed outside the recording and playing device 10, the microphone 11 is used to collect environmental audio in a classroom, including the sound of a student B, and the speaker 12 can be used to play remote audio data and can be used to interact with a teacher a and a student B in the current classroom. Meanwhile, the microphone 11 and the speaker 12 need to be connected to the recording and playing device 10 through an external audio processor, and the audio processor provides interfaces for connecting the microphone 11, the deriver 12 and the recording and playing device, and provides processing such as filtering and denoising for audio data. However, the audio data processing method shown in fig. 2 requires an additional external microphone 11 and speaker 12 in the scene shown in fig. 1, which greatly occupies space, so that the recording and playing device is bulkier in overall structure, and a professional audio processor needs to be debugged by a professional many times during connection, configuration, and use, which not only increases the cost of using the recording and playing device, but also increases the use complexity.

Fig. 3 is a schematic diagram of another peripheral apparatus for processing audio data by a recording and playing device, which can also be applied to the scenario shown in fig. 1, wherein, in order to record the sound of the teacher a in the classroom, when the recording and playing device is used, the teacher a can carry with him or set a wireless microphone 13 near the teacher a for collecting the audio data of the teacher a in teaching. Correspondingly, the recording and playing device 10 also needs to be connected with an external wireless microphone receiver, and the wireless microphone receiver receives the audio data from the wireless microphone 13, so as to collect the audio data in the teaching content of the teacher a. However, the audio data acquisition method shown in fig. 3 occupies a space when the wireless microphone receiver is additionally installed, and thus the complexity of the recording and playing device is increased.

Fig. 4 is a schematic diagram of an external device for processing video data by a recording and playing device, wherein, in order to acquire video data of different areas in a classroom during teaching, an external first camera 14 and an external second camera 15 are further required to be connected when the recording and playing device is used, for example, the first camera 14 may be used to shoot an area where a student B is located, and the second camera 15 may be used to shoot an area where a teacher a is located. However, as for the video data collection method shown in fig. 4, an additional camera device needs to be installed in the scene shown in fig. 1, and when various external devices connected in fig. 1 need to be connected by a connection line, the overall complexity of the recording and playing device is further increased.

To sum up, in the recording and broadcasting device provided in fig. 1 to 4, in order to implement processing such as acquisition of audio and video data in a classroom, a plurality of different external devices need to be additionally provided, and the external devices are respectively connected to the recording and broadcasting device, so that acquisition of teaching content in the classroom can be implemented. Obviously, as shown in fig. 1, when the recording and broadcasting device 10 is used each time, it is required to be connected to a large number of external devices, which not only increases the use cost of the external devices, but also causes the overall structure of the recording and broadcasting device 10 to be complex when installed and used, which is not favorable for the normalized use of the recording and broadcasting device 10, and affects the use efficiency of the recording and broadcasting device when used for recording the teaching content in the classroom.

Therefore, the application provides a recorded broadcast equipment, through integrate microphone, speaker and relevant audio and video processing device such as wireless receiving module in recorded broadcast equipment to reduce recorded broadcast equipment required external device who additionally connects when using effectively, thereby reduce the complexity of categorised equipment overall structure, and then improve recorded broadcast equipment's availability factor.

The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 5 is a schematic structural diagram of an embodiment of the recording and broadcasting device provided by the present application, and the recording and broadcasting device shown in fig. 5 can be applied to a recording and broadcasting scene of teaching contents, and collects and processes audio and video contents of a whole course of teaching in a course of teaching a teacher to students, and provides remote interaction in the course of teaching.

Specifically, the recording and playing device provided in this embodiment includes: a control module 101, an audio processing module 102, a microphone 103, a speaker 104, and a wireless receiving module 105. The control module 101 is connected to the audio processing module 102, the control module 101 can be used to control the audio processing module 102 to process audio data, and the audio processing module 102 is further connected to the microphone 103, the speaker 104 and the wireless receiving module 105, and is used to process the audio data of the microphone 103, the speaker 104 and the wireless receiving module 105.

In some embodiments, the control module 101 may be a Central Processing Unit (CPU), a System-on-a-Chip (SOC), a Micro Control Unit (MCU), or other processors of the recording and playing device. The audio processing module 202 may be a processor dedicated to processing audio data, such as a Digital Signal Processing (DSP) processor provided in the recording and playing device. The control module 101 and the audio processing module 102 may communicate with each other via a serial port, so as to implement input/output of audio data and parameter configuration, and provide an Over-the-Air Technology (OTA) interface of the control module 101, so that the audio processing module 102 may be upgraded via the OTA interface provided by the control module 101, thereby solving a problem that some devices cannot upgrade the audio processing module 102.

In some embodiments, the DSP processor may perform Echo Cancellation (AEC), Automatic Gain Control (AGC), Automatic Frequency Control (AFC), and/or Active Noise Reduction (ANR) on the received audio data, so as to enable the recording device to achieve an omnidirectional and high-quality sound pickup effect. Or, in an interactive application scene, the far-end audio data received by the recording and playing device through the internet and the local near-end audio data collected by the recording and playing device can be subjected to audio mixing processing.

In an embodiment, the microphone 103 may be a 6-array MIC disposed in the recording and playing device 10, and is connected to a Pulse Density Modulation (PDM) interface in the audio processing module, and may be configured to collect first audio data of an environment where the recording and playing device is located, transmit the collected first audio data to the audio processing module 102, and send the collected first audio data to the main control module 101 for subsequent processing after the audio processing module 102 performs processing such as noise reduction and filtering, where the subsequent processing of the first audio data by the main control module 101 is not limited in this application.

In some embodiments, the wireless receiving module 105 may be a U-segment wireless microphone receiver, and is connected to an Inter-IC Sound (I2S) interface of the AUDIO processing module 102 via a decoding chip (e.g., AUDIO CODEC).

In some embodiments, the U-segment wireless microphone receiver provided by the recording and playing device corresponds to the wireless microphone 13, so that the U-segment wireless microphone receiver can be used for receiving the second audio data sent by the wireless microphone 13, transmitting the collected second audio data to the audio processing module 102, and after the audio processing module 102 performs processing such as noise reduction and filtering, the audio data is sent to the main control module 101 for subsequent processing.

In some embodiments, the SPEAKER 104 may be a two-channel stereo horn (SPEAKER), which may output 15W. And an Amplifier (AMP) may be further disposed between the speaker 104 and the audio processing module 102, so that after the control module 101 sends the third audio data to be played to the audio processing module 102, the audio processing module 102 sends the third audio data amplified by the Amplifier to the speaker 104 for playing.

Fig. 6 is a schematic view of an application scenario of the recording and playing device provided in the present application, wherein in the scenario shown in fig. 6, the recording and playing device 10 may connect to the wireless microphone 13 through the wireless receiving module 105, and it is shown that when the recording and playing device 10 shown in fig. 5 is applied in the scenario shown in fig. 6, at least the following functions can be performed:

function one: the first audio data is acquired by a microphone 103 built into the recording and playing device 10. For example, the microphone 103 may be used to collect environmental sounds in a classroom in which the recording and playing device 10 is located, including sounds of the teacher a and the student B in the classroom, as the first audio data. After the microphone 103 transmits the first audio data to the audio processing module 102, the audio processing module 102 processes the first audio data and transmits the processed first audio data to the control module 101. The control module 101 may subsequently store the first audio data, send the first audio data to the cloud, and the like.

And a second function: the second audio data collected by the wireless microphone 13 is received by the wireless receiving module 105. The wireless receiving module 105 and the wireless microphone 13 may communicate using the same communication protocol, and then the wireless microphone 13 may be disposed near the teacher a in the classroom, or worn on the body of the teacher a, so that the wireless microphone 13 may collect the sound emitted by the teacher a in the course of teaching in a short distance, and record the sound as second voice data, and then the wireless microphone 13 collects the second voice data and sends the second voice data to the wireless receiving module 105 in a wireless communication manner, so that after the wireless receiving module 105 transmits the second audio data to the audio processing module 102, the audio processing module 102 processes the second audio data and transmits the second audio data to the control module 101. The control module 101 may subsequently store the second audio data, send the second audio data to the cloud, and the like.

And function III: the third audio data is played through the speaker 104. For example, the control module 101 may obtain third audio data of the remote device through the network, where the third audio data includes a problem that a student using the remote device presents to a teacher, and then the control module 101 sends the third audio data to the audio processing module 102, and then the audio processing module 102 sends the third audio data to the speaker 104 for playing. Alternatively, the third audio data may also be a sound within a courseware used by the teacher, or the like.

In summary, the recording and broadcasting device provided in this embodiment can be applied to a normalized classroom of informatization teaching, and can acquire audio data of a teacher during teaching through a microphone built in the recording and broadcasting device and a wireless microphone connected to the wireless receiving module, and can interact through a built-in audio playing mode. As a comparison with the scenario shown in fig. 1, in the scenario applied by the recording and playing device provided in fig. 6, except for the recording and playing device 10, part of the external devices in fig. 1 are integrated into the recording and playing device 10, so that the microphone 11, the speaker 12 and the wireless microphone receiver connected to the recording and playing device 10 in fig. 1 are reduced, the recording and playing device 10 is more integrated, and is no longer required to be connected to the external devices through a large number of data lines during use, the complexity of the overall structure of the recording and playing device during use is reduced, the normalized use of the recording and playing device 10 is facilitated, and the use efficiency of the recording and playing device during the content recording in the classroom is further improved.

In the application scenario shown in fig. 6, the recording and playing device shown in fig. 5 can already meet the requirement of processing audio data in most of the normalized teaching scenarios, and in some teaching scenarios with high noise and interference, in order to more accurately and effectively collect audio data of teaching contents in a classroom, in some embodiments, the recording and playing device 10 provided by the present application may further provide some input/output interfaces related to audio data for connecting to an external microphone.

For example, fig. 7 is a schematic structural diagram of an embodiment of a recording and playing device provided by the present application, and the recording and playing device shown in fig. 7 further includes, on the basis of fig. 5: at least one linear audio data (LINE) input/output interface 106, and/or at least one microphone audio data (MIC) input/output interface 107.

The LINE input/output interface 106 may be connected to an I2S interface of the AUDIO processing module 102 through a decoding chip (e.g., an AUDIO CODEC, etc.), and may be used for connecting the recording and playing device with an electronic device such as a computer, an interactive tablet or other recording and playing devices, so that the recording and playing device 10 may receive fourth AUDIO data from other electronic devices through the LINE input/output interface 106, transmit the fourth AUDIO data to the AUDIO processing module 102, perform subsequent processing by the AUDIO processing module 102, and transmit the processed fourth AUDIO data to the control module 101.

The MIC input/output interface 107 may be connected to an I2S interface of the AUDIO processing module 102 via a decoding chip (e.g., AUDIO CODEC, etc.), and may be used for connecting a recording and playing device to other microphones. For example, in a specific implementation manner, 2 MIC input/output interfaces may be disposed in the recording and playing device 10, wherein 1 MIC input/output interface is connected to two omnidirectional pickup beam microphones, each omnidirectional pickup beam microphone may cover an area of 4 meters, and may be disposed in a far field area in a classroom to realize large classroom environment pickup; and the other 1 path of MIC input/output interface is connected with two paths of phantom power supply balance microphones. When the recording and broadcasting equipment 10 records the audio data of the teaching contents in the classroom, the audio data can be collected through the built-in microphone 103, the wireless microphone 13 connected with the wireless receiving module 105 and the microphone connected with the MIC input/output interface 107, and the audio data collected by all the microphones can be combined together for processing by the control module 101 or other equipment, so that clearer and more accurate audio data can be obtained.

In the embodiments of fig. 5 and fig. 7, the apparatuses related to the acquisition and processing of audio data disposed in the recording and playing apparatus 10 are described, but in some embodiments, the recording and playing apparatus may also be connected to an electronic apparatus having a display screen, such as a computer, an interactive tablet, and the like, to receive, transmit, and process video data. For example, fig. 8 is a schematic structural diagram of an embodiment of a recording and playing device provided in the present application, and the recording and playing device 10 shown in fig. 8 further includes, on the basis of the embodiment shown in fig. 5 or fig. 7: at least one High Definition Multimedia Interface (HDMI) input/output Interface 108 is connected to the control module 101, and can be used to connect second video data from an external electronic device, and the control module 101 performs subsequent processing on the second video data. Alternatively, the control module 101 may also transmit video data to the connected electronic apparatus through the HDMI input/output interface 108, so that the electronic apparatus receives the video data transmitted by the recording and playing apparatus 10.

Fig. 9 is a schematic structural diagram of an embodiment of the recording and playing device provided IN the present application, and fig. 9 shows a specific circuit structure implementation manner of the recording and playing device 10 IN fig. 8, wherein a built-IN microphone 103, a speaker 104, and a wireless receiving module 105 are integrated IN the recording and playing device 10, and 1 LINE input IN and LINE output OUT interfaces, 4 MIC input interfaces IN1/2/3/4, 1 HDMI input interface IN, and 2 HDIM output interfaces OUT1 and OUT2 are provided. The connection between the HDMI OUT1 and the HDMI OUT2 is related to the interface of the master module 101, for example, the HDMI interface of the master module 101 can directly output an HDMI signal through the HDIM OUT1, and the signal of the BT1120 format video output by the VO interface of the master module 101 needs to be converted into an HDMI signal by the HDMI Transmitter, and then output from the HDMI OUT2 interface.

Fig. 10 is a schematic structural diagram of an embodiment of a recording and playing apparatus provided in the present application, and the recording and playing apparatus shown in fig. 10 further includes, on the basis of any one of the foregoing embodiments of the present application: the first camera device 109 integrally arranged in the recording and broadcasting equipment is connected with the control module 101 and can be used for collecting first video data of the environment where the recording and broadcasting equipment is located. For example, the first image pickup device 109 may be a camera module of 800W pixels.

In some embodiments, when the recording and broadcasting device 10 only needs to collect the panoramic image in the classroom and the close-up image of the student area, at this time, the recording and broadcasting device may not be connected to the external camera device any more, but directly through the first camera device in the recording and broadcasting device 10, and the panoramic shooting position in the classroom is oriented, so that the collection of the panoramic video image data in the classroom can be realized, and meanwhile, the action for the student area can be performed by providing the close-up image through the first camera device to collect the video image data.

In other embodiments, the recording device 10 shown in fig. 10 may further include: at least one ethernet interface 110 is connected to the control module 101, and the recording and playing device 10 can be connected to an external second camera device through the ethernet interface 110, so that after the recording and playing device 10 receives third video data shot by the second camera device through the ethernet interface 110, the control module 101 further performs subsequent processing on the third video data.

For example, fig. 11 is a schematic diagram of an application scenario of the recording and playing apparatus provided in the present application, wherein if the recording and playing apparatus 10 needs to shoot a teacher area or a student area separately during use, a second camera facing the teacher area or the student area may be provided, and the recording and playing apparatus 10 is connected to the second camera 15 through a connection line.

In some embodiments, the control module 101 may further process video data received through the HDMI interface and remote video data received by the recording and playing device 10 through the internet, and perform subsequent processing such as live broadcasting or recording on the processed video data. For example, the control module 101 may perform a portable grayscale image (PGM) synthesis process through one path of video data input through the HDMI interface, two paths of panoramic and close-up video data input through the first camera, and two paths of panoramic and close-up video data input through the ethernet interface.

Fig. 12 is a schematic structural diagram of an embodiment of the recording and playing apparatus provided in the present application, and fig. 12 shows a specific circuit structure implementation manner of the recording and playing apparatus 10 in fig. 11, wherein, on the basis of the recording and playing apparatus shown in fig. 9, a built-in first camera 109 and a network port 110 are further integrated in the recording and playing apparatus 10.

In summary, when the recording and playing device provided by this embodiment can be applied to a normalized classroom for informatization teaching, the video data of the teacher during teaching can be collected through the built-in camera device of the recording and playing device. As a comparison with the scenario shown in fig. 1, in the scenario applied by the recording and playing device provided in fig. 11, except for the recording and playing device 10, part of the external devices in fig. 1 is integrated inside the recording and playing device 10, so that the number of the cameras connected to the recording and playing device 10 in fig. 1 is reduced, the recording and playing device 10 is more integrated, and is no longer required to be connected to the external devices through a large number of data lines during use, thereby reducing the complexity of the overall structure of the recording and playing device during use, facilitating the normalized use of the recording and playing device 10, and further improving the use efficiency of the recording and playing device during the recording of the teaching content in the classroom.

Those of ordinary skill in the art will understand that: all or part of the steps corresponding to the control module and the audio processing module in the method embodiments can be completed through hardware related to program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A recording and playing device, comprising:

the device comprises a control module, an audio processing module, a microphone, a loudspeaker and a wireless receiving module; the control module is connected with the audio processing module, and the audio processing module is also respectively connected with the microphone, the loudspeaker and the wireless receiving module;

the microphone is configured to collect first audio data of the environment where the recording and playing device is located and transmit the first audio data to the audio processing module; the audio processing module is configured to process the first audio data and transmit the processed first audio data to the control module;

the wireless receiving module is configured to receive second audio data from a wireless microphone and transmit the second audio data to the audio processing module; the audio processing module is configured to process the second audio data and transmit the second audio data to the control module;

the control module is configured to transmit third audio data to be played to the speaker through the audio processing module, the speaker being configured to play the third audio data.

2. The recording and playing apparatus of claim 1, further comprising:

the first camera device is connected with the control module;

the first camera device is configured to collect first video data of an environment where the recording and playing equipment is located.

3. The recording and playing apparatus according to claim 1 or 2, further comprising:

at least one linear audio data LINE input/output interface which is connected with the audio processing module and is configured to transmit the received fourth audio data to the audio processing module;

and the at least one microphone audio data MIC input/output interface is connected with the audio processing module and is configured to transmit the received fifth audio data to the audio processing module.

4. The recording device according to claim 3,

the at least one MIC input/output interface is specifically configured to connect the two omnidirectional pickup beam microphones and the two phantom power balanced microphones.

5. The recording and playing apparatus according to claim 1 or 2, further comprising:

and the at least one path of high-definition multimedia interface (HDMI) input/output interface is connected with the control module, is configured to receive second video data and transmits the second video data to the control module.

6. The recording and playing apparatus according to claim 1 or 2, further comprising:

and the at least one Ethernet interface is connected with the control module and is configured to receive third video data from a second camera and transmit the third video data to the control module.

7. Recording device according to claim 1 or 2,

the microphone includes: 6 microphone MIC array.

8. Recording device according to claim 1 or 2,

the wireless receiving module comprises: u section wireless microphone receiver.

9. Recording device according to claim 1 or 2,

the audio frequency processing module includes: a DSP processor;

the DSP processor is configured to perform echo cancellation AEC, automatic gain control AGC, automatic frequency control AFC, and/or active noise reduction ANR processing on the received audio data.

10. Recording device according to claim 1 or 2,

the control module is further configured to perform image processing on the received video data.