Audio wireless communication system convenient for outdoor playing and singing performance

Abstract

The utility model discloses an audio wireless communication system convenient for outdoor playing and singing performance, comprising a transceiver used for pairing connection with a musical instrument, a headset, an intelligent terminal and / or a receiver group, the transceiver is provided with a central processor, a bluetooth module and a wireless transmitting terminal, and the transceiver is equipped with a physical control device; the intelligent terminal realizes audio signal output to the transceiver and control signal output to the transceiver; the receiver group is composed of a plurality of receivers connected to the audio terminal; the transceiver, the musical instrument, the headset, the intelligent terminal and the receiver group are matched in two modes according to different combination modes of the transceiver and the receiver; according to the audio wireless communication system, wireless transmission of audio signals is carried out through pairing connection of the transceiver, the musical instrument, the headset, the intelligent terminal and the receiver group, an audio communication mode that audio data acquisition and audio data transmission are carried out in a wired connection mode is replaced, and outdoor playing and singing performance is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless communication of wireless audio equipment, in particular to an audio wireless communication system which is convenient for outdoor singing and playing performances. Background Art

[0002] As more and more wireless communication technologies are applied to life, the convenience of wireless communication technology for data transmission has gradually been highlighted. The music field is no exception. People apply wireless communication technology to the music field to replace the means of multiple people controlling music equipment in music performances.

[0003] Before preparing for an outdoor music performance, it is generally necessary to carry audio equipment such as smart terminals, musical instruments, headphones, microphones with stands, and audio terminals. Since there are many audio devices to carry and some of the audio devices are large in size, carrying too many audio devices and their connecting lines can easily cause inconvenience; at the same time, after the audio equipment is placed, it is necessary to connect these audio devices through lines to form an audio communication system that can transmit audio signals between different audio devices. The operation of the staff when connecting the lines is relatively complicated, and the construction of the entire audio communication system takes a long time.

[0004] In most outdoor singing and playing performances, a stand is generally used to fix the microphone to facilitate the performer to play the instrument. If the instrument is an electronic instrument, a line connection is also required to collect the sound data of the instrument. In these cases, the following problems are likely to occur: 1) When using a wired microphone for vocal collection, the performer's movements will be restricted by the microphone connection line. The performer can only perform near the location of the stand that fixes the microphone, and the movable space is limited; 2) When using a wired electronic instrument to collect instrument sounds, the performer's movements will be restricted by the instrument connection line; 3) When collecting vocal data, the microphone may be far away from the performer's mouth. The microphone is likely to collect the sound of the instrument and the accompaniment at the scene, resulting in overlapping or extended sounds.

[0005] In addition, during the performance, the performer will choose the appropriate time to play the background music to enhance the quality of the music. However, in general, the performer needs to turn on the corresponding audio equipment with the help of others to play the background music. Moreover, the performance process also requires monitoring to control the music effects. When a person performs singing and playing, these operations will undoubtedly affect the performer's performance, reducing the content the performer can choose to play. Utility Model Content

[0006] In view of the above technical deficiencies, the utility model provides an audio wireless communication system which utilizes the paired connection of a transceiver with a musical instrument, a headset, an intelligent terminal and a receiver group to wirelessly transmit audio signals, replacing the audio communication form of audio data collection and audio data transmission in the form of wired connection, so that the movable space of the performer during performance is no longer restricted by the lines of the audio equipment.

[0007] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: The utility model discloses an audio wireless communication system that is convenient for outdoor singing and playing performances, and the audio wireless communication system includes: a transceiver, which is used to pair and connect with a musical instrument, a headset, an intelligent terminal and / or a receiver group, the transceiver has a central processing unit, a Bluetooth module and a wireless transmitter, the Bluetooth module is connected to an external intelligent terminal through Bluetooth wireless connection for signal transmission, the headset is connected to the transceiver through a wired connection or a wireless connection, the central processing unit has a DSP chip and delays, reduces noise and performs reverberation processing on the audio signals transmitted by the musical instrument, the headset and the Bluetooth module, and can process the control signal, the audio signal or control signal processed by the central processing unit is transmitted to the wireless transmitter, the wireless transmitter is used to wirelessly transmit the audio signal and the control signal to the outside of the transceiver, and the transceiver is equipped with a physical control device for adjusting the radio wave frequency band of the wireless transmitter, the audio signal output of the wireless transmitter and the control signal output of the wireless transmitter;

[0008] The intelligent terminal outputs the audio signal to the transceiver, and is connected to the transceiver by Bluetooth communication and interacts with the transceiver to transmit the audio signal and the control signal;

[0009] A receiver group, consisting of a plurality of receivers connected to the audio terminal, wherein the receivers are wirelessly connected to the wireless transmitter to receive audio signals and control signals;

[0010] The transceiver and the musical instrument, headset, smart terminal, and receiver group are divided into two cooperation modes according to the different combinations of the transceiver and the receiver. In the first mode, the transceiver is connected between the musical instrument, headset, smart terminal, and the receiver group, so that any one or more of the musical instrument, headset, or smart terminal can be wirelessly synchronized and connected with all the receivers in the receiver group through a single transceiver.

[0011] In the second mode, the transceiver is connected between a musical instrument, a headset, a smart terminal and a single receiver, or the transceiver is connected between any two receivers in a receiver group, and ultimately allows several audio playback terminals that are equipped with transceivers and receivers to achieve wireless synchronous connection.

[0012] Furthermore, in the first mode, the multiple receivers in the receiver group are connected to the wireless transmitter through frequency-adjustable radio wave pairing, and the physical control device controls the wireless transmitter to adjust the radio wave frequency band and transmit control signals to the receiver.

[0013] Furthermore, the processor of the smart terminal is used to execute the Bluetooth communication activities of the smart terminal. The smart terminal transmits the audio signal to the Bluetooth module via a Bluetooth wireless connection. The Bluetooth module transmits the audio signal to the central processor for processing, and then transmits the audio signal to a receiver connected to the audio terminal via a wireless transmitter in a wireless transmission manner.

[0014] Furthermore, the physical control device includes a channel switching button and a volume control button arranged on the transceiver, the channel switching button is used to adjust the frequency band of radio waves emitted by the wireless transmitter, and the volume control button is used to control the playback volume of the audio terminal when playing audio data. The electrical signals generated by operating the channel switching button and the volume control button are transmitted to the central processing unit, and the central processing unit is used to process the command signals of the channel switching button, process the command signals of the volume control button, and execute the communication activities of the wireless transmitter. The control signals processed by the central processing unit are transmitted to the wireless transmitter. After the wireless transmitter is paired with the receiver, the audio signal and the control signal are transmitted to the receiver connected to the audio terminal by wireless transmission.

[0015] Furthermore, in the second mode, the number of the transceivers is more than one, the number of the receivers is the same as the number of transceivers, the transceiver and the receiver constitute a relay module connected to the audio terminal, and several of the relay modules form a signal transmission link for signal transmission in a wireless connection manner, and the receiver in each of the relay modules receives the audio signal and control signal transmitted by the transceiver in the previous relay module in the signal transmission link.

[0016] Furthermore, the network topology adopted by the signal transmission link formed by the plurality of relay modules includes point-to-point, bus, ring, star, tree, mesh and hybrid topologies.

[0017] Furthermore, the smart terminal is provided with an OTG internal recording module connected to its audio input terminal, and the OTG internal recording module is wirelessly connected to the wireless transmitting terminal to realize audio signal input of the smart terminal.

[0018] Furthermore, the transceiver is also provided with an earphone jack connected to the audio output end of the earphone, and the earphone jack forms a wired connection between the transceiver and the earphone as a path for the earphone to transmit the audio signal to the central processor.

[0019] The beneficial effects of the utility model are as follows: the audio wireless communication system utilizes the paired connection of the transceiver with the musical instrument, headset, intelligent terminal and receiver group to wirelessly transmit the audio signal, replacing the form of using a microphone fixed by a bracket through a wired connection to collect human voice data, transmit musical instrument sound data by wire, transmit music accompaniment data by wire and play audio data by wire, so that the movable space of the performer during performance is no longer restricted by the line of the audio equipment, and human voice collection, musical instrument reception, headphone monitoring and Bluetooth accompaniment input operations can be realized at any position within the specified scene range.

[0020] The wireless transmission communication mode between the transceiver and the receiver can be selected according to the size of the venue. The wireless signal transmission between the transceiver and the receiver can meet the wireless data transmission needs of audio terminals at different locations in the venue, making it convenient for the audio terminals to cooperate with the performers' performances.

[0021] During the singing and playing process, the audio signal and the control signal can be output with the help of the smart terminal and the physical control device of the transceiver, and then the audio signal and the control signal can be transmitted to the audio terminal by using the wireless connection between the transceiver and the receiver, so as to adjust the working state of the audio terminal, so that the performer can independently control the work of the audio terminal to cooperate with the singing and playing, simplify the control operation of the audio terminal, expand the means of the audio terminal, and enrich the content selection of the performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The figure is a schematic diagram of the structure of the audio communication system when the transceiver and the receiver are combined in the first mode.

[0023] Figure 2 The figure is a physical connection diagram of the audio communication system when the first mode is used for combination.

[0024] Figure 3 The figure is a schematic diagram of the structure of the audio communication system when the transceiver and the receiver are combined in the second mode.

[0025] Figure 4 The figure is a physical connection diagram of the audio communication system when the first mode is used for combination.

[0026] Figure 5 Schematic diagram of the working principle of the physical control device.

[0027] Figure 6 This is a schematic diagram of the working principle of the OTG internal recording module when performing wireless internal recording.

[0028] Figure 7 This is a diagram of the physical transmission of the OTG internal recording module.

[0029] Figure 8 Schematic diagram of the working principle when the headset is connected to the transceiver via a wire.

[0030] Fig. 9 The physical structure of the transceiver Figure 1 .

[0031] Fig.10 The physical structure of the transceiver Figure 2 .

[0032] In the figure, 1. transceiver; 2. musical instrument; 3. headset; 4. central processing unit; 5. Bluetooth module; 6. wireless transmitter; 8. DSP chip; 9. wireless transmitter; 10. physical control device; 11. smart terminal; 12. receiver group; 13. audio terminal; 14. receiver; 15. channel switching button; 16. volume control button; 17. relay module; 18. OTG internal recording module; 19. headphone jack. DETAILED DESCRIPTION

[0033] The present invention discloses an audio wireless communication system which is convenient for outdoor singing and playing performances. Figures 1 to 4 As shown in combination, the audio wireless communication system includes:

[0034] A transceiver 1 is used for pairing and connecting with a musical instrument 2, a headset 3, an intelligent terminal 11 and / or a receiver group 12. The transceiver 1 has a central processor 4, a Bluetooth module 5 and a wireless transmitter 9. The Bluetooth module 5 is connected to an external intelligent terminal 11 via Bluetooth wireless to transmit signals. The headset 3 is connected to the transceiver 1 via a wired connection or a wireless connection. The central processor 4 has a DSP chip 8 and performs delay, noise reduction and reverberation processing on the audio signals transmitted by the musical instrument 2, the headset 3 and the Bluetooth module 5, and can process the control signal. The audio signal or control signal processed by the central processor 4 is transmitted to the wireless transmitter 9. The wireless transmitter 9 is used to wirelessly transmit the audio signal and the control signal to the outside of the transceiver 1. The transceiver 1 is equipped with a physical control device 10 for adjusting the radio wave frequency band of the wireless transmitter 9, the audio signal output of the wireless transmitter 9 and the control signal output of the wireless transmitter 9;

[0035] The intelligent terminal 11 outputs the audio signal to the transceiver 1, and is connected to the transceiver 1 via Bluetooth communication to interactively transmit the audio signal therewith;

[0036] The receiver group 12 is composed of a plurality of receivers 14 connected to the audio terminal 13, and is connected to the transceiver 1 by means of Bluetooth communication and interacts with it to transmit audio signals and control signals;

[0037] The transceiver 1 and the musical instrument 2, the headset 3, the smart terminal 11, and the receiver group 12 are divided into two cooperation modes according to the different ways of combining the transceiver 1 and the receiver group 12. In the first mode, the transceiver 1 is connected between the musical instrument 2, the headset 3, the smart terminal 11 and the receiver group 12, so that any one or more of the musical instrument 2, the headset 3 or the smart terminal 11 can be wirelessly synchronized and connected with all the receivers 14 in the receiver group 12 through a single transceiver 1;

[0038] In the second mode, the transceiver 1 is connected between the musical instrument 2, the headset 3, the smart terminal 11 and a single receiver 14, or the transceiver 1 is connected between any two receivers 14 in the receiver group 12, and finally allows several audio playback terminals that are simultaneously equipped with the transceiver 1 and the receiver 14 to achieve wireless synchronous connection.

[0039] It should be noted that in the above embodiment: the transceiver 1 is connected to the audio output port of the musical instrument 2, and the audio data generated by the musical instrument 2 during operation will be transmitted to the transceiver 1 in the form of an audio electrical signal, and the central processing unit 4 in the transceiver 1 processes the audio electrical signal generated by the musical instrument 2; the smart terminal 11 transmits the accompaniment data in the form of an audio electrical signal to the Bluetooth device in the smart terminal 11 (not shown in the figure), and the Bluetooth device in the smart terminal 11 transmits the audio radio wave signal to the Bluetooth module 5 in the transceiver 1 through Bluetooth wireless communication, and the Bluetooth module 5 transmits the music accompaniment data in the form of an electrical signal to the central processing unit 4 for processing; the microphone on the headset 3 can be used as a vocal data collection terminal. If the headset 3 is connected to the transceiver 1 in a wireless connection, the collected vocal data will be transmitted to the Bluetooth device in the headset 3 (not shown in the figure) in the form of an electrical signal, and the Bluetooth device in the headset 3 transmits the vocal data to the Bluetooth module 5 in the transceiver 1 in the form of a radio wave signal, and the Bluetooth module 5 transmits the vocal data in the form of an electrical signal to the central processing unit 4 is processed; the central processor 4 is provided with a DSP chip 8, which can perform delay, noise reduction and reverberation effects on the audio data, accompaniment data and vocal data of the musical instrument 2, and then perform audio synthesis on all the processed audio data, and the processed reverberation audio signal is transmitted to the Bluetooth module 5 and the wireless transmitter 9 in the form of electrical signals respectively, and the Bluetooth module 5 transmits the reverberation audio signal to the headset 3 in the form of Bluetooth wireless transmission for the performer to monitor, so as to facilitate the performer to monitor the accompaniment music, live music and vocal conditions during the performance; the transceiver 1 is used to pair with the musical instrument 2, the headset 3 and the intelligent terminal 11 for wireless transmission of audio signals, instead of using a microphone fixed by a bracket through a wired connection to collect vocal data, transmit the sound data of the musical instrument 2, transmit the music accompaniment data and play the audio data, so that the movable space of the performer during the performance is no longer limited by the line of the audio equipment, and the vocal collection, musical instrument 2 reception, headphone monitoring and Bluetooth accompaniment input operations can be realized at any position within the specified scene range.

[0040] It should be further explained that when the performance venue is small and multiple audio terminals 13 are set in the venue, the combination of the transceiver 1 and the musical instrument 2, the headset 3, the intelligent terminal 11, and the receiver group 12 adopts the first mode, and the transceiver 1 is connected between the musical instrument 2, the headset 3, the intelligent terminal 11 and the receiver group 12, and the transceiver 1 is used as the center for wireless reception or wireless transmission of audio data and control signals, so as to form a wireless audio communication network in a small range;

[0041] When the performance venue is large and multiple audio terminals 13 are installed in the venue, the combination of the transceiver 1 and the musical instrument 2, the headset 3, the smart terminal 11, and the receiver group 12 adopts the second mode, through the transceiver 1 connected between the musical instrument 2, the headset 3, the smart terminal 11 and a single receiver 14, or the transceiver 1 is connected between any two receivers 14 in the receiver group 12, and finally a number of audio playback terminals with transceivers 1 and receivers 14 installed at the same time are wirelessly synchronously connected in series to form a wireless audio communication network for transmitting audio data in series over a large range; the audio wireless communication system can select one of the above two modes as the wireless transmission communication mode between the transceiver 1 and the receiver 14 according to the size of the venue, so as to adapt to the wireless data transmission requirements of the audio terminals 13 at different positions in the venue, so as to facilitate the audio terminals 13 to cooperate with the performers in their performance.

[0042] What needs to be further explained in this embodiment is that during the singing and playing process, the audio signal and the control signal can be output with the help of the smart terminal 11 and the physical control device 10 of the transceiver 1, and then the audio signal and the control signal can be transmitted to the audio terminal 13 by using the wireless connection between the transceiver 1 and the receiver 14, so as to adjust the working state of the audio terminal 13, so that the performer can independently control the work of the audio terminal 13 to cooperate with the singing and playing, simplify the control operation of the audio terminal 13, expand the means of the audio terminal 13 and enrich the content selection of the performance.

[0043] As one of the embodiments of the present invention, Figure 1 and Figure 2 As shown in combination, in the first mode, the multiple receivers 14 in the receiver group 12 are connected to the wireless transmitter 9 by means of frequency-adjustable radio wave pairing, and the physical control device 10 controls the wireless transmitter 9 to adjust the radio wave frequency band and transmit the control signal to the receiver 14.

[0044] Among them, in the first mode, a one-to-many wireless transmission network is formed between the wireless transmitter 9 and multiple receivers 14, so that the wireless transmission terminal 9 is used as the center for wireless transmission of audio signals and control signals, and the audio terminal 13 plays music or changes the volume of music playback based on the audio signals and control signals received by the receiver 14; the receivers 14 are connected to the wireless transmitter 9 by frequency-adjustable radio wave pairing, which can avoid the influence of external radio waves on the wireless data transmission between the receiver 14 and the wireless transmitter 9; the intelligent terminal 11 and the physical control device 10 are operated to generate a command signal for controlling the volume of the audio played by the audio terminal 13, or a command signal for controlling the wireless transmitter 9 to adjust the radio wave frequency band, and the transmission of music accompaniment data by the intelligent terminal 11 to the wireless transmitter 9 will cause the wireless transmitter 9 to generate the action of transmitting audio signals. By controlling the intelligent terminal 11 and the physical control device 10, it is possible to change the working state of the wireless transmitter 9 during wireless transmission by different control means, so as to meet the performer's control operation needs for the working state of the audio terminal 13 during the performance.

[0045] As a further preference of the above embodiment, Figure 1 As shown, the processor of the smart terminal 11 is used to execute the Bluetooth communication activity of the smart terminal 11. The smart terminal 11 transmits the audio signal to the Bluetooth module 5 via a Bluetooth wireless connection. The Bluetooth module 5 transmits the audio signal to the central processor 4 for processing, and then transmits the audio signal to the receiver 14 connected to the audio terminal 13 in a wireless transmission manner through the wireless transmitter 9.

[0046] The performer can use the smart terminal 11 to transmit the music accompaniment data to the audio terminal 13 in the form of wireless transmission, and play it through the audio terminal 13, thereby meeting the performer's need to use the accompaniment music to coordinate during the performance.

[0047] As a further preference of the above embodiment, Figure 1 , Figure 5 , Fig. 9 and Fig.10As shown, the physical control device 10 includes a channel switching button 15 and a volume control button 16 arranged on the transceiver 1, the channel switching button 15 is used to adjust the frequency band of radio waves emitted by the wireless transmitting terminal 9, and the volume control button 16 is used to control the playback volume of the audio terminal 13 when playing audio data. The electrical signals generated by operating the channel switching button 15 and the volume control button 16 are transmitted to the central processor 4, and the central processor 4 is used to process the command signal of the channel switching button 15, the command signal of the volume control button 16 and execute the communication activities of the wireless transmitting terminal 9. The control signal processed by the central processor 4 is transmitted to the wireless transmitting terminal 9. After the wireless transmitting terminal 9 is paired with the receiver 14, the audio signal and the control signal are transmitted to the receiver 14 connected to the audio terminal 13 in a wireless transmission manner.

[0048] Among them, when operating the channel switching button 15, a command signal can be generated to control the wireless transmitting terminal 9 to adjust the radio wave frequency band, and the volume control button 16 can be operated to control the volume of the audio played by the audio terminal 13. By operating the buttons on the transceiver 1, the working state of the wireless transmitting terminal 9 during wireless transmission and the volume of the audio played by the audio terminal 13 can be changed, thereby meeting the performer's need to wirelessly control the working state of the audio terminal 13 through hardware during the performance.

[0049] As one of the embodiments of the present invention, Figure 3 and Figure 4 As shown in combination, in the second mode, the number of the transceivers 1 is more than one, the number of the receivers 14 is the same as the number of the transceivers 1, the transceiver 1 and the receiver group 12 form a relay module 17 connected to the audio terminal 13, and several of the relay modules 17 form a signal transmission link for signal transmission in a wireless connection manner, and the receiver 14 in each of the relay modules 17 receives the audio signal and control signal transmitted by the transceiver 1 in the previous relay module 17 in the signal transmission link.

[0050] Among them, in the second mode, a one-to-one wireless transmission is formed between the first transceiver 1 of the signal transmission link and the first receiver 14 in the receiver group 12. After the wireless transmitting end 9 of the first transceiver 1 wirelessly transmits the audio signal and the control signal to the first receiver 14 in the receiver group 12, a signal transmission link for the transmission of the audio signal and the control signal is formed. Each relay module 17 in the signal transmission link receives and sends the audio signal and the control signal in sequence, thereby meeting the wireless transmission requirements of the audio signals of multiple audio terminals 13 in the venue when performing in a large venue, so that the performer can wirelessly control all the audio terminals 13 in the venue during the performance.

[0051] As a further preference of the above embodiment, Figure 3 As shown, the network topology forms adopted by the signal transmission link formed by the multiple relay modules 17 include point-to-point, bus, ring, star, tree, mesh and hybrid topologies.

[0052] Among them, the network topology between the relay modules 17 that form the signal transmission link can be selected according to the location of the audio terminal 13 in the venue and the stability of the wireless transmission of the audio signal, so that the wireless transmission path of the audio signal between multiple audio terminals 13 can be more in line with the actual use needs.

[0053] As one of the embodiments of the present invention, Figure 6 and Figure 7 As shown in combination, the smart terminal 11 has an OTG internal recording module 18 connected to its audio input terminal. The OTG internal recording module 18 is wirelessly connected to the wireless transmitting terminal 9 to realize the audio signal input of the smart terminal 11, and the APP controls the communication activities of the OTG internal recording module 18.

[0054] Among them, the OTG internal recording module 18 receives the reverberation audio signal transmitted by the wireless transmitting terminal 9 in a wireless transmission manner, and the OTG internal recording module 18 converts the battery wave signal of the reverberation audio into an electrical signal, thereby realizing the internal recording of the reverberation audio data of the smart terminal 11; when the smart terminal records the reverberation audio data internally, the processor of the smart terminal controls the start-up of the OTG internal recording module 18 in the form of an electrical signal and receives the reverberation audio signal transmitted by the wireless transmitting terminal 9 in a wireless transmission manner, and transmits the audio data such as music and human voice received by the OTG internal recording module 18 to the smart terminal in the form of an audio signal, thereby realizing the internal recording function of the smart terminal.

[0055] As one of the embodiments of the present invention, Figure 2 , Figure 4 , Figure 8 and Fig. 9 As shown in the figure, the transceiver 1 also has an earphone jack 19 connected to the audio output end of the earphone 3 , and the earphone jack 19 forms a wired connection between the transceiver 1 and the earphone 3 as a path for the earphone 3 to transmit audio signals to the central processor 4 .

[0056] Among them, the headset 3 can use its audio output end to establish a wired connection with the headphone jack 19, so that the vocal data collected by the microphone in the headset 3 can be transmitted to the headphone jack 19 in the form of an electrical signal, and the headphone jack 19 then transmits the vocal data to the central processor 4 in the form of an electrical signal for processing; and the reverberation audio data processed by the central processor 4 can be transmitted to the headset 3 in the form of an electrical signal through the line of the audio output end, and played at the sounding end of the headset 3 for monitoring by the performer.

[0057] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An audio wireless communication system for outdoor singing and playing performances, characterized in that: The audio wireless communication system comprises: A transceiver, used for pairing and connecting with a musical instrument, a headset, an intelligent terminal and / or a receiver group, the transceiver has a central processing unit, a Bluetooth module and a wireless transmitter, the Bluetooth module is connected to an external intelligent terminal via Bluetooth wireless to transmit signals, the headset is connected to the transceiver via a wired connection or a wireless connection, the central processing unit has a DSP chip and performs delay, noise reduction and reverberation processing on the audio signals transmitted by the musical instrument, the headset and the Bluetooth module, and can process the control signal, the audio signal or control signal processed by the central processing unit is transmitted to the wireless transmitter, the wireless transmitter is used to wirelessly transmit the audio signal and the control signal to the outside of the transceiver, and the transceiver is equipped with a physical control device for adjusting the radio wave frequency band of the wireless transmitter, the audio signal output of the wireless transmitter and the control signal output of the wireless transmitter; An intelligent terminal, used to output audio signals to the transceiver, and to connect to the transceiver via Bluetooth communication and to interactively transmit audio signals and control signals therewith; A receiver group, consisting of a plurality of receivers connected to the audio terminal, wherein the receivers are wirelessly connected to the wireless transmitter to receive audio signals and control signals; The transceiver and the musical instrument, headset, smart terminal, and receiver group are divided into two cooperation modes according to the different combinations of the transceiver and the receiver. In the first mode, the transceiver is connected between the musical instrument, headset, smart terminal, and the receiver group, so that any one or more of the musical instrument, headset, or smart terminal can be wirelessly synchronized and connected with all the receivers in the receiver group through a single transceiver. In the second mode, the transceiver is connected between a musical instrument, a headset, a smart terminal and a single receiver, or the transceiver is connected between any two receivers in a receiver group, and ultimately allows several audio playback terminals that are equipped with transceivers and receivers to achieve wireless synchronous connection.

2. The audio wireless communication system according to claim 1, characterized in that: In the first mode, multiple receivers in the receiver group are connected to the wireless transmitter through frequency-adjustable radio wave pairing, and the physical control device controls the wireless transmitter to adjust the radio wave frequency band and transmit control signals to the receiver.

3. The audio wireless communication system according to claim 2, characterized in that: The processor of the smart terminal is used to execute the Bluetooth communication activities of the smart terminal. The smart terminal transmits the audio signal to the Bluetooth module via a Bluetooth wireless connection. The Bluetooth module transmits the audio signal to the central processor for processing, and then transmits the audio signal to the receiver connected to the audio terminal in a wireless transmission manner through the wireless transmitter.

4. The audio wireless communication system according to claim 2, characterized in that: The physical control device includes a channel switching button and a volume control button arranged on the transceiver, the channel switching button is used to adjust the frequency band of radio waves emitted by the wireless transmitter, and the volume control button is used to control the playback volume of the audio terminal when playing audio data. The electrical signals generated by operating the channel switching button and the volume control button are transmitted to the central processor, and the central processor is used to process the command signals of the channel switching button, the command signals of the volume control button, and execute the communication activities of the wireless transmitter. The control signal processed by the central processor is transmitted to the wireless transmitter. After the wireless transmitter is paired with the receiver, the audio signal and the control signal are transmitted to the receiver connected to the audio terminal in a wireless transmission manner.

5. The audio wireless communication system according to claim 1, characterized in that: In the second mode, the number of transceivers is more than one, the number of receivers is the same as the number of transceivers, the transceiver and the receiver constitute a relay module connected to the audio terminal, and several relay modules form a signal transmission link for signal transmission in a wireless connection manner. The receiver in each relay module receives the audio signal and control signal transmitted by the transceiver in the previous relay module in the signal transmission link.

6. The audio wireless communication system according to claim 5, characterized in that: The network topology forms adopted by the signal transmission link formed by the multiple relay modules include point-to-point, bus, ring, star, tree, mesh and mixed topologies.

7. The audio wireless communication system according to claim 1, characterized in that: The smart terminal is provided with an OTG internal recording module connected to its audio input terminal, and the OTG internal recording module is wirelessly connected to the wireless transmitting terminal to realize the audio signal input of the smart terminal.

8. The audio wireless communication system according to claim 1, characterized in that: The transceiver also has an earphone jack connected to the audio output end of the earphone, and the earphone jack forms a wired connection between the transceiver and the earphone as a path for the earphone to transmit audio signals to the central processor.

Images