CN219611973U - Audio processing system - Google Patents

Abstract

The utility model discloses an audio processing system. Comprising the following steps: the recording and broadcasting system comprises a recording and broadcasting host, a master receiver, at least one slave receiver, at least one microphone transmitter and at least one sound box, wherein the master receiver is arranged on the recording and broadcasting host or is in communication connection with the recording and broadcasting host; each microphone transmitter is in communication connection with the slave receiver when the master receiver is in a non-working state, and is used for collecting sound information and transmitting the sound information to the connected slave receiver; each slave receiver is arranged on the corresponding sound box or is in communication connection with the corresponding sound box, converts the sound information into an analog signal after receiving the sound information and sends the analog signal to the corresponding sound box; each sound box converts the analog signals into to-be-played signals after receiving the analog signals, and plays the to-be-played signals. The method solves the problem that the sound signal can not be processed under the conditions of shutdown, failure and the like of the recording and broadcasting host, effectively processes the sound information, does not influence the normal use of a user, and improves the user experience.

Description

Audio processing system

Technical Field

The utility model relates to the technical field of audio processing, in particular to an audio processing system.

Background

The wireless collar clip microphone can be worn on a collar clip of a user and is mainly used for outdoor video shooting, various live broadcasting and interview recording audios. In the prior art, a receiver in a recording and playing host is used for receiving the sound signal, and the recording and playing host is used for processing the sound signal. In this way, once the recording and playing host is powered off, failed, powered off and the like, the sound signal cannot be processed, and the use experience of the user is affected.

Disclosure of Invention

The utility model provides an audio processing system which is used for solving the problem that sound signals cannot be processed under the conditions of shutdown, fault and the like of a recording and broadcasting host.

According to an aspect of the present utility model, there is provided an audio processing system including: the recording and broadcasting system comprises a recording and broadcasting host, a master receiver, at least one slave receiver, at least one microphone transmitter and at least one sound box, wherein the master receiver is arranged on the recording and broadcasting host or is in communication connection with the recording and broadcasting host;

each microphone transmitter is in communication connection with the slave receiver when the master receiver is in a non-working state, and is used for collecting sound information and transmitting the sound information to the connected slave receiver;

each slave receiver is arranged on the corresponding sound box or is in communication connection with the corresponding sound box, converts the sound information into an analog signal after receiving the sound information and sends the analog signal to the corresponding sound box;

each sound box converts the analog signals into to-be-played signals after receiving the analog signals, and plays the to-be-played signals.

According to the technical scheme, when the master receiver is in a non-working state, the microphone transmitter is in communication connection with the slave receiver to send collected sound information to the connected slave receiver; each slave receiver is arranged on the corresponding sound box or is in communication connection with the corresponding sound box, converts the sound information into an analog signal after receiving the sound information and sends the analog signal to the corresponding sound box; each sound box converts an analog signal into a to-be-played signal after receiving the analog signal and plays the to-be-played signal, so that the problem that sound signals cannot be processed under the conditions that a recording and playing host is powered off, failed and the like is solved, when the recording and playing host is in a non-working state and cannot normally process sound information, the sound information is sent to the sound box from a receiver to be processed, when the recording and playing host cannot normally process the sound information, the sound information is effectively processed, normal use of a user is not influenced, and user experience is improved.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the utility model or to delineate the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an audio processing system according to a first embodiment of the present utility model;

fig. 2 is a schematic structural diagram of an audio processing system according to a second embodiment of the present utility model.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented 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.

Example 1

Fig. 1 is a schematic structural diagram of an audio processing system according to a first embodiment of the present utility model, where the embodiment is applicable to a situation that a recording and playing host normally processes audio information when the recording and playing host is powered off, fails, and the system includes: at least one microphone transmitter 11, a master receiver 12, at least one slave receiver 13, a recording host 14, and at least one sound box 15, the master receiver 12 being disposed on the recording host 14 or in communication with the recording host 14.

Each microphone transmitter 11 is communicatively connected to the slave receiver 12 when the master receiver 121 is in a non-operating state, and is configured to collect sound information and transmit the sound information to the connected slave receiver 12;

each slave receiver 12 is arranged on the corresponding sound box 15 or is in communication connection with the corresponding sound box 15, converts the sound information into an analog signal after receiving the sound information, and sends the analog signal to the corresponding sound box 15;

each sound box 15 converts the analog signal into a waiting signal after receiving the analog signal, and plays the waiting signal.

In this embodiment, the recording host 14 may be specifically understood as an electronic device for recording audio and video, for example, a smart phone, a tablet computer, etc. The master receiver 12 and the slave receiver 13 are both receivers, which may be the same type and model, and are respectively set as the master receiver 12 and the slave receiver 13 by an upper computer or other devices. In the embodiment of the present utility model, the master receiver 12 is disposed on the recording and playing host 14 or is in communication connection with the recording and playing host 14, and each slave receiver 13 is disposed on the corresponding sound box 15 or is in communication connection with the corresponding sound box 15. During the production process of the recording host 14, the main receiver 12 can be directly arranged in the recording host 14; for the recording host 14 which is delivered from the factory, the main receiver 12 can be set to communicate with the recording host 14, the recording host 14 does not need to be modified, and the recording host 14 can be used continuously, so that waste is avoided; similarly, in the production process of the sound box 15, the slave receiver 13 can be directly arranged in the sound box 15; for the sound box 15 that has already been shipped, communication with the sound box 15 may be made through the setting slave receiver 13. The microphone transmitter 11 may be wired or wireless, preferably wireless. The loudspeaker 15 may be any type of loudspeaker 15. The number of slave receivers 13 generally corresponds to the number of sound boxes 15, i.e. one sound box 15 for each slave receiver 13; it is also possible to arrange that the number of slave receivers 13 does not correspond to the number of sound boxes 15, e.g. that the number of slave receivers 13 is smaller than the number of sound boxes 15, that part of the sound boxes 15 is not provided with slave receivers 13 or is not in communication with slave receivers 13.

Specifically, each microphone transmitter 11 may be in communication connection with the master receiver 12 and the slave receiver 13 at the same time, monitor the operation states of the master receiver 12 and the slave receiver 13, or may be in communication connection with the master receiver 12 or the slave receiver 13, for example, the microphone transmitter 11 is in communication connection with the master receiver 12, does not communicate with the slave receiver 13 when the master receiver 12 is in the operation state, and is switched to be connected with the slave receiver 13 when the master receiver 12 is in the non-operation state; when the main receiver 12 is restored to the operating state, it is switched to be connected to the main receiver 12 again. Each microphone transmitter 11 may be connected to one or more slave receivers 13, and when there are a plurality of slave receivers 13, the microphone transmitter 11 may be connected to each slave receiver 13, or may be connected to only a part of the slave receivers 13, and a part of the slave receivers 13 may be designated slave receivers 13, or may be slave receivers 13 satisfying a certain condition. Each microphone transmitter 11 collects sound information in the environment, for example, sounds made by a teacher in a class, sounds made by a classmate answering questions, etc., or sounds made in the case of a talk, singing, eating, etc., by a host during live broadcasting or recorded broadcasting, etc. When the recording and broadcasting host 14 is powered off, and has a fault, the main receiver 12 is in a non-working state, the microphone transmitter 11 communicates with the auxiliary receivers 13 when detecting that the main receiver 12 is in a non-working state, and transmits the collected sound information to each connected auxiliary receiver 13, and the sound signals can be encoded by adopting an encoding technology, for example, an LE AUDIO LC3 plus encoding and decoding technology, before being transmitted to the auxiliary receivers 13.

For each slave receiver 13 it may receive sound information transmitted by one or more microphone transmitters 11. If the sound information transmitted from the microphone transmitter 11 is received from the receiver 13, the sound information is processed, the sound signal received from the receiver 13 is digital, the sound signal is converted into an analog signal from the receiver 13, and then the analog signal is transmitted to the corresponding speaker 15.

In this embodiment, the to-be-played signal may be specifically understood as an audio signal having a playing requirement. For each speaker 15, after receiving the analog signal, the speaker 15 processes the analog signal, for example, denoising, enhancing, amplifying, and the like, to obtain a to-be-played signal, and plays the to-be-played signal. The sound source of the analog signal received by the sound box 15 in the embodiment of the present utility model may be one microphone emitter 11, or may be a plurality of microphone emitters 11.

In the embodiment of the utility model, only one sound box 15 can process the analog signal, and the processed waiting signal is sent to other sound boxes 15 to be played synchronously. If only one sound box 15 processes the analog signal, the sound boxes may be designated in advance, for example, by setting priority, or master-slave screening may be performed between the sound boxes, that is, one sound box may be selected from a plurality of sound boxes. In this case, each slave receiver 13 may send an analog signal to the corresponding speaker 15, but the speaker 15 does not process the analog signal, or only the speaker that processes the data obtains the analog signal from the corresponding slave receiver, and other speakers only need to wait for and receive the processed waiting signal.

The embodiment of the utility model provides an audio processing system, wherein a microphone transmitter is in communication connection with a slave receiver when a master receiver is in a non-working state, and the microphone transmitter is used for transmitting collected sound information to the connected slave receiver; each slave receiver is arranged on the corresponding sound box or is in communication connection with the corresponding sound box, converts the sound information into an analog signal after receiving the sound information and sends the analog signal to the corresponding sound box; each sound box converts an analog signal into a to-be-played signal after receiving the analog signal and plays the to-be-played signal, so that the problem that sound signals cannot be processed under the conditions that a recording and playing host is powered off, failed and the like is solved, when the recording and playing host is in a non-working state and cannot normally process sound information, the sound information is sent to the sound box from a receiver to be processed, when the recording and playing host cannot normally process the sound information, the sound information is effectively processed, normal use of a user is not influenced, and user experience is improved.

Example two

Fig. 2 is a schematic structural diagram of an audio processing system according to a second embodiment of the present utility model, where the present embodiment is refined based on the foregoing embodiment. As shown in fig. 2:

the microphone transmitter is a wireless collar clamp microphone.

The microphone transmitter in the embodiment of the utility model preferably adopts the wireless collar clip microphone in the collar clip wearing mode to replace the traditional handheld microphone, is used for pick-up and sound expansion, is more convenient and fast in the use process, and improves the user experience.

Each microphone transmitter 11 is in communication connection with the main receiver 12 when the main receiver 12 is in an operating state, and transmits the collected sound information to the main receiver 12;

the main receiver 12 converts the sound information into analog signals after receiving the sound information and transmits the analog signals to the recording and playing host 14;

the recording and broadcasting host 14 is connected with each sound box 15, converts the analog signals into signals to be broadcast, and sends the signals to be broadcast to each sound box 15;

each sound box 15 plays the signal to be played after receiving the signal to be played sent by the recording and playing host 14.

Specifically, when the main receiver 12 is in an operating state, the recording and broadcasting host 14 can process the sound information normally, and each microphone transmitter 11 is guaranteed to be in communication connection with the main receiver 12. Each microphone transmitter 11 transmits the collected sound information to the main receiver 12. The main receiver 12 processes the sound information after receiving the sound information from the source and each microphone transmitter 11, converts the sound information from a digital signal into an analog signal, and transmits the analog signal to the recording and playing host 14. The recording and broadcasting host 14 is connected with the sound box 15, processes the received analog signals such as denoising, sound enhancement, sound expansion and the like to obtain signals to be broadcast, and sends the signals to be broadcast to the sound box 15 for broadcasting.

It should be noted that, when the main receiver 12 is in an operating state, the sound information collected by the microphone receiver will be processed by the recording and playing host 14; at this time, the microphone receiver may not transmit the sound information to the slave receiver 13 or may transmit the sound information to the slave receiver 13, but the slave receiver 13 actively mutes, does not process the sound information, and does not transmit the sound information to the sound box 15, so as to avoid the occurrence of the situation of sound repetition processing and mixing.

The audio processing system provided by the embodiment of the utility model can process signals through the recording and broadcasting host 14 or the sound box 15, and when the recording and broadcasting host 14 cannot work normally, the sound box 15 realizes the signal processing function, so that the situation that sound signals cannot be processed in time when the recording and broadcasting host 14 is abnormal is avoided; when the recording and broadcasting host 14 can work normally, the slave receiver 13 actively mutes, and the sound box 15 only needs to play the waiting signals and does not need to process the sound information.

Optionally, a first digital signal processing chip 141 is disposed on the recording and playing host 14; the second digital signal processing chips 151 are respectively disposed on each sound box 15, and the first digital signal processing chip 141 and each second digital signal processing chip are used for converting analog signals into signals to be played.

In this embodiment, the first digital signal processing chip 141 and the second digital signal processing chip 151 are both digital signal processing chips, and generally the same type of chips are adopted, and different types of chips can be used according to the performance, power consumption, and the like of the recording and playing host 14 and the sound box 15. In the embodiment of the present utility model, the first digital signal processing chip 141 and the second digital signal processing chip 151 may be DSP chips, and process signals. A first digital signal processing chip 141 is arranged in the recording and playing host 14 to process the analog signals transmitted by the main receiver 12; the second digital signal processing chip 151 is provided in the sound box 15, and the second digital signal processing chip 151 may be provided in each sound box 15, or the second digital signal processing chip 151 may be provided only in the sound box 15 in which the slave receiver 13 or the communication with the slave receiver 13 is provided, and each sound box 15 processes an analog signal through the second digital signal processing chip 151.

Optionally, each microphone emitter 11 comprises a cardioid directional capacitor microphone 111;

each heart-shaped pointing capacitor 111 is used to collect sound information.

In the embodiment of the utility model, the heart-shaped directional capacitor microphone 111 is arranged in each microphone emitter 11, and each microphone emitter 11 collects sound information through the heart-shaped directional capacitor microphone 111, only the sound of a speaker is reserved, noise in the environment is filtered, and meanwhile, because the heart-shaped directional capacitor microphone has strong directivity, howling is not easy to generate. In the prior art, the full-directional capacitor microphone is generally used for collecting sound information, and the full-directional capacitor microphone is easy to pick up redundant sound in the environment to influence the sound pick-up of a user.

Optionally, each microphone transmitter 11 includes a communication module 112 for transmitting voice information, and the communication module 112 carries a proprietary protocol that only retains the bluetooth physical layer.

In this embodiment, the communication module 112 may be understood as a hardware module for communicating with the master receiver 12 or the slave receiver 13 and transmitting sound information. In the embodiment of the present utility model, the communication module 112 is disposed on each microphone transmitter 11, and the communication module 112 carries a private protocol that only retains the bluetooth physical layer, for example, the BT5.2 protocol, and the communication module 112 transmits the sound information according to the private protocol that only retains the bluetooth physical layer.

When the embodiment of the utility model is used for transmitting the sound information, 2.4GHz is adopted, only the private protocol of the Bluetooth physical layer is reserved for transmission, and the method has the advantages of stability of Bluetooth transmission, automatic frequency hopping, low power consumption and low time delay, and can shorten the time delay by a value of 12ms. In the prior art, 2.4GHz Bluetooth is adopted when sound information is transmitted, the transmission delay is large, the speaking mouth-shaped picture and sound cannot step easily when the transmission delay is about 40ms, and the response is slow and experience is poor.

Optionally, a first infrared module 113 is disposed on each microphone emitter 11, a second infrared module 121 is disposed on the master receiver 12, and a third infrared module 131 is disposed on each slave receiver 13;

the first infrared module 113 is coupled to the second infrared module 121 and/or each third infrared module 131 in a mating manner.

In this embodiment, the first infrared module 113, the second infrared module 121 and the third infrared module 131 can be understood as hardware modules having an infrared connection pairing function, for example, an infrared transmitting tube is disposed on the microphone transmitter 11 as the first infrared module 113, an infrared receiving tube is disposed on the main receiver 12 as the second infrared module 121, and an infrared receiving tube is disposed on the slave receiver 13 as the third infrared module 131. The first infrared module 113 may be coupled with only the second infrared module 121 or coupled with only the third infrared modules 131; alternatively, the first infrared module 113 may be coupled with the second infrared module 121 and each of the third infrared modules 131 at the same time. It should be appreciated that whether the first infrared module 113 is coupled to the second infrared module 121 or the third infrared module 131 is dependent upon the communicative coupling relationship between the microphone transmitter 11 and the master 12 and slave 13 receivers.

Optionally, a first wireless module 114 is disposed on each microphone transmitter 11, a second wireless module 122 is disposed on the master receiver, and a third wireless module 132 is disposed on each slave receiver;

the first wireless module 114 is coupled to the second wireless module 122 and/or each third wireless module 132.

In the present embodiment, the first wireless module 114, the second wireless module 122, and the third wireless module 132 can be understood as hardware modules having a pairing function through a wireless network connection. Similarly, the first wireless module 114 may be paired with only the second wireless module 122 or only the third wireless modules 132; alternatively, the first wireless module 114 may be coupled to both the second wireless module 122 and each third wireless module 132.

In the embodiment of the present utility model, only the infrared module or the wireless module may be disposed on each microphone transmitter 11, the master receiver 12 and each slave receiver 13, or both the infrared module and the wireless module may be disposed. Under the condition that the wireless module and the infrared module are arranged at the same time, the pairing connection can be carried out through an infrared and wireless short-distance alternating combination pairing mode, for example, the infrared pairing connection is firstly carried out, if the wireless module and the infrared module cannot be connected, the wireless connection is carried out, and if the wireless connection is disconnected, the infrared connection mode is adopted again for connection. The embodiment of the utility model can also shorten the wireless pairing distance to a certain range, such as 2m; the infrared pairing distance can reach 5-10 meters, so that wall-through pairing to partition wall space equipment can be avoided, and the pairing success rate is improved. The wireless pairing method solves the problems that in the prior art, only wireless pairing is adopted, the mode is single, the pairing distance is uncontrollable, and the pairing is easy to be confused when more than two similar devices exist.

Optionally, the recording and broadcasting host 14 is in communication connection with the cloud server 20, and is further configured to send a signal to be broadcast to the cloud server 20, so as to record and store audio.

The recording and broadcasting host 14 in the embodiment of the present utility model may also be connected to the cloud server 20 in a communication manner, and send the waiting signal to the cloud server 20. The cloud server 20 stores the to-be-broadcast signals after receiving the to-be-broadcast signals, so as to record and store audio, and the cloud server 20 in the embodiment of the utility model can be in communication connection with a plurality of recording and broadcasting hosts 14, receive and store the to-be-broadcast signals sent by the plurality of recording and broadcasting hosts 14, and can also send the received to-be-broadcast signals to other recording and broadcasting hosts 14 or devices for playing, so that video sharing is realized.

Optionally, the system further comprises:

and a charging bin 16 for charging each microphone emitter 11.

The charging bin 16 provided by the embodiment of the utility model can charge each microphone emitter 11, and can charge simultaneously or sequentially. Illustratively, the microphone transmitter 11 uses 200mAh,3.7V,1S-Lipo, supporting 1 hour of fast charge with 0-100% of the power; charging bin 16 used 1500mAh,3.7V,1S-Lipo.

Optionally, the system further comprises:

a display screen 17 for displaying current volume information of each sound box 15;

the display 17 is also used for displaying the electric quantity or the pairing connection state of each microphone emitter 11.

In this embodiment, the current volume information may be specifically understood as the volume of the audio currently being played by the speaker 15. When the sound box 15 plays the audio, the user can set the volume according to the requirement, and the volume is kept unchanged after setting until the next resetting. The current volume information of each sound box 15 is displayed on the display screen 17, and the display screen 17 in the embodiment of the present utility model may only display the current volume information corresponding to the sound box 15 currently playing, or may display the current volume information of the sound box 15 currently not playing audio as 0.

The display 17 provided in the embodiment of the present utility model may also display the electric quantity or the pairing connection status of each microphone transmitter 11, and the pairing connection status may be that the pairing is successful, the pairing is failed, and may also display which microphone transmitter 11 is paired with which master receiver 12 and/or slave receiver 13 when the pairing is successful, etc., where the display 17 in the embodiment of the present utility model may display any information that may be known by the user.

It should be noted that, in the embodiment of the present utility model, the recording and playing host 14 and the sound box 15 also need to be charged, and the charging mode, the charging voltage, etc. may be determined according to the models of the recording and playing host 14 and the sound box 15. For example, the recording and playing host 14 is charged by DC24V, and the sound box 15 is charged by AC 220V.

The embodiment of the utility model provides an audio processing system, which solves the problem that sound signals cannot be processed under the conditions of shutdown, failure and the like of a recording and broadcasting host, and when the recording and broadcasting host is in a non-working state and cannot normally process sound information, the sound information is sent from a receiver to a sound box for processing, and when the recording and broadcasting host cannot normally process the sound information, the sound information is effectively processed, so that the normal use of a user is not influenced, and the user experience is improved. The heart-shaped directional capacitor microphone collects sound information, only the sound of a speaker is reserved, noise in the environment is filtered, and meanwhile, because the heart-shaped directional capacitor microphone has strong directivity, howling is not easy to generate; the communication module for transmitting sound information in the microphone transmitter carries a private protocol which only reserves a Bluetooth physical layer, and has the advantages of stability of Bluetooth transmission, automatic frequency hopping, low power consumption and low time delay. The infrared module and the wireless module are matched and connected, so that the matching success rate is improved.

The above embodiments do not limit the scope of the present utility model. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.

Claims (11)

1. An audio processing system, comprising: the recording and broadcasting system comprises a recording and broadcasting host, a master receiver, at least one slave receiver, at least one microphone transmitter and at least one sound box, wherein the master receiver is arranged on the recording and broadcasting host or is in communication connection with the recording and broadcasting host;

each microphone transmitter is in communication connection with the slave receiver when the master receiver is in a non-working state, and is used for collecting sound information and transmitting the sound information to the connected slave receiver;

each slave receiver is arranged on the corresponding sound box or is in communication connection with the corresponding sound box, converts the sound information into an analog signal after receiving the sound information, and sends the analog signal to the corresponding sound box;

each sound box converts the analog signals into signals to be played after receiving the analog signals, and plays the signals to be played.

2. The system of claim 1, wherein the microphone transmitter is a wireless collar clip microphone.

3. The system of claim 1, further comprising:

each microphone transmitter is in communication connection with the main receiver when the main receiver is in a working state, and transmits the collected sound information to the main receiver;

the main receiver converts the sound information into an analog signal after receiving the sound information and sends the analog signal to the recording and broadcasting host;

the recording and broadcasting host is connected with each sound box, converts the analog signals into signals to be broadcast, and sends the signals to be broadcast to each sound box;

and each sound box plays the signal to be played after receiving the signal to be played sent by the recording and playing host.

4. The system of claim 3, wherein a first digital signal processing chip is disposed on the recording and playing host; and a second digital signal processing chip is respectively arranged in each sound box, and the first digital signal processing chip and each second digital signal processing chip are used for converting the analog signals into signals to be broadcast.

5. The system of claim 1, wherein each of the microphone emitters comprises a cardioid directional capacitor microphone;

and each heart-shaped directional capacitor microphone is used for collecting sound information.

6. The system of claim 1, wherein each of the microphone transmitters includes a communication module for transmitting voice information, the communication module carrying a proprietary protocol that retains only a bluetooth physical layer.

7. The system of claim 1, wherein a first infrared module is disposed on each of the microphone transmitters, a second infrared module is disposed on the master receiver, and a third infrared module is disposed on each of the slave receivers;

the first infrared module is connected with the second infrared module and/or each third infrared module in a pairing mode.

8. The system of claim 7, wherein a first wireless module is disposed on each of said microphone transmitters, a second wireless module is disposed on said master receiver, and a third wireless module is disposed on each of said slave receivers;

the first wireless module is in pairing connection with the second wireless module and/or each third wireless module.

9. The system of claim 1, wherein the recording and broadcasting host is in communication connection with a cloud server and is further configured to send a signal to be broadcast to the cloud server to record and store audio.

10. The system of claim 1, further comprising:

and the charging bin is used for charging each microphone emitter.

11. The system of claim 7, 8 or 10, further comprising:

the display screen is used for displaying the current volume information of each sound box;

the display screen is also used for displaying the electric quantity or the pairing connection state of each microphone emitter.