Wireless audio receiving equipment, system, monitoring equipment and storage medium

Abstract

The embodiment of the present application provides a wireless audio receiving device, a live audio system, a wireless monitoring device and a storage medium. The wireless audio receiving device is connected to a wireless audio acquisition device and a wireless monitoring device respectively; the wireless audio receiving device includes a first wireless module, a second wireless module and a main control module, the first wireless module receives real-time audio data collected by the wireless audio acquisition device and monitors noise signals; the second wireless module synchronously sends the received real-time audio data to the monitoring device and monitors noise signals; the main control module sends the real-time audio data received by the first wireless module to the second wireless module, and controls the switching of working channels based on the noise signals monitored by the first wireless module or the second wireless module.

Description

Technical Field

[0001] The present application relates to the field of wireless technology, and in particular to a wireless audio receiving device, a live audio system, a wireless monitoring device and a storage medium. Background Art

[0002] Live audio systems usually include audio acquisition equipment and audio receiving equipment. During the live broadcast, the producer or host needs to monitor the audio collected by each audio acquisition device in real time to ensure the audio effect of the live broadcast or recording. Therefore, live audio systems usually also include monitoring equipment.

[0003] Live broadcast scenarios, the number of people broadcasting, monitoring needs, etc. are often changing. For example, in a single-person live broadcast scenario, the broadcaster is both the host and the director. When he needs to grasp the sound effects of the live broadcast in real time, since both the monitoring equipment and the audio acquisition equipment are wireless devices, interference will occur. Therefore, the sound effects are usually monitored through wired headphones. If he uses the method of monitoring the output of the wireless microphone device, then he needs to connect the headphones from the wireless microphone device, and then wear the headphones in his ears for monitoring. This requires the wired headphones to have a long cord, which will bring an extremely inconvenient experience to the broadcaster and is not beautiful. Especially for some outdoor live broadcasts or anchors who need to be active frequently, this will cause great obstacles. And for scenarios where multiple people need to monitor at the same time, the wired headphone monitoring method is even more impossible. Summary of the invention

[0004] In view of this, the present application provides a wireless audio receiving device, a live audio system, a wireless monitoring device and a storage medium.

[0005] According to a first aspect of the present application, a wireless audio receiving device is provided, and the wireless audio receiving device is connected to a wireless audio acquisition device and a wireless monitoring device respectively;

[0006] The wireless audio receiving device includes a first wireless module, a second wireless module and a main control module, and the working channels of the first wireless module and the second wireless module are different;

[0007] The first wireless module is used to receive real-time audio data collected by the wireless audio collection device and monitor noise signals;

[0008] The second wireless module is used to synchronously send the received real-time audio data to the monitoring device and monitor the noise signal;

[0009] The main control module is used to send the real-time audio data received by the first wireless module to the second wireless module, and control the first wireless module and the second wireless module to switch working channels based on the noise signal monitored by the first wireless module or the second wireless module.

[0010] According to a second aspect of the present application, a wireless monitoring device is provided, which is used to receive and play audio data sent by the wireless audio receiving device described in the first aspect.

[0011] According to a third aspect of the present application, a live audio system is provided, comprising the wireless audio receiving device described in the first aspect, and the monitoring device and wireless audio acquisition device described in the second aspect.

[0012] According to a fourth aspect of the present application, a computer-readable storage medium is provided, in which a computer program is stored. When the computer program is executed, the functions described in the first, second and third aspects are realized.

[0013] By applying the solution provided in the present application, in order to realize the use of wireless technology for audio collection and sound effect monitoring in the live broadcast system, the crosstalk problem when two devices transmit wireless data with high real-time requirements can be avoided. The wireless audio receiving device is provided with two modules, and the channel switching is controlled by the main control module. The main control module switches the working channels of the two wireless modules to channels with less noise in a timely manner according to the interference situation monitored in real time by the two wireless modules, thereby ensuring the efficiency of wireless transmission of various data in the live broadcast system and the real-time transmission.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 It is a network diagram of a wireless audio system.

[0017] Figure 2 A schematic diagram of a wireless audio system showing a logic block diagram of a wireless audio receiving device.

[0018] Figure 3 It is a schematic diagram of allocating working channels of wireless modules according to an embodiment of the present application.

[0019] Figure 4 This is a signaling interaction diagram between devices of a wireless audio system according to an embodiment of the present application.

[0020] Figure 5 This is a signaling interaction diagram between devices of a wireless audio system according to another embodiment of the present application.

[0021] Figure 6 It is a network diagram of a live broadcast system in one embodiment of the present application.

[0022] Figure 7 It is a schematic diagram showing a logic block diagram of a sound card device in a live broadcast system of an embodiment of the present application. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] A wireless audio system usually has several wireless audio acquisition devices and one wireless audio receiving device. Figure 1 It is a wireless audio system 10 in a live broadcast scenario. Wireless microphones are usually used as wireless audio acquisition devices (wireless audio acquisition devices 100-103 in the figure). The wireless audio receiving device 200 can receive the audio collected by the wireless microphone and forward it to the live broadcast platform and recording device. During the live broadcast, the producer or host needs to monitor in real time whether the audio collected by each microphone is normal, so as to ensure the audio effect of the live broadcast or recording. Therefore, the wireless audio system 10 often needs a monitoring device 300, such as headphones.

[0025] Conventional wireless audio microphones and wireless audio receiving devices use Bluetooth technology to achieve data transmission. However, if wireless headphones are used as monitoring devices 300, multiple wireless devices will share and occupy the same wireless channel, resulting in interference between the wireless devices and insufficient transmission bandwidth. In addition, some wireless audio microphones on the market currently support Bluetooth private protocols with high fidelity and high transmission rate, but there are no wireless headphones that support Bluetooth private protocols on the market. If a wireless audio microphone that supports Bluetooth private protocols and a wireless headphone that does not support Bluetooth private protocols share a wireless module, there may be protocol compatibility issues.

[0026] This application provides solutions to the above problems. Please refer to Figure 2The wireless audio system 20 includes a wireless audio collection device 201, a wireless audio receiving device 202 and a wireless monitoring device 203.

[0027] The wireless audio receiving device 202 is connected to the wireless audio collection device 201 and the wireless monitoring device 203 respectively. The wireless audio receiving device 202 includes two wireless modules, namely the first wireless module 2021 and the second wireless module 2022 in the figure. The first wireless module 2021 and the second wireless module 2022 each occupy a working channel. Both wireless modules are connected to the main control module 2023 and are controlled by the main control module 2023.

[0028] In the present application, the first wireless module 2021 is used to receive the real-time audio data collected by the wireless audio collection device and the monitoring noise signal, and the second wireless module 2022 is used to synchronously send the received real-time audio data to the monitoring device and the monitoring noise signal;

[0029] The main control module 2023 plays a role of central control, one of which can be to send the real-time audio data received by the first wireless module 2021 to the second wireless module 2022. In addition, the main control module 2023 controls the working channel switched between the first wireless module 2021 and the second wireless module 2022 according to the noise signal monitored by the first wireless module 2021 or the second wireless module 2022.

[0030] This application separates the working channel used by the wireless audio acquisition device 201 from the working channel used by the wireless monitoring device 203, and the working channel is not fixed, but uses the first wireless module 2021 and the second wireless module 2022 to monitor the environmental noise in real time, and promptly notifies the main control module 2023 to switch the working channels of the two wireless modules when the environmental noise may affect the working channel, so that the channel away from the interference source can be selected as far as possible, which can not only reduce the interference of the wireless signal between the wireless audio acquisition device and the wireless monitoring device, but also greatly reduce the interference of the main interference source in the environment to the wireless signal. In addition, the collected audio signal and the monitored audio signal are transmitted through different working channels, which greatly reduces the bandwidth pressure. It can be seen that since the user can use a wireless method to monitor all the audio quality processed by the wireless audio receiving device 202 in real time, it is not limited by the distance and live broadcast equipment, so the wearer can move freely within the effective wireless transmission distance; and it is convenient to realize multiple people to monitor at the same time through wireless monitoring, which is not limited by the limitations of wired devices.

[0031] The working channels of the first wireless module 2021 and the second wireless module 2022 are allocated by the main control module 2023, and the main control module 2023 is designed with a relevant frequency hopping strategy so that the working channels of the two wireless modules are as far away as possible, thereby reducing the possibility of mutual interference. In addition, when any one of the first wireless module 2021 and the second wireless module 2022 is triggered to perform a frequency hopping process, the wireless module identifies the distribution of the main interference channels according to the strength of the interference signal, and reports the channel information occupied by the main interference source detected to the main control module 2023. The main control module 2023 identifies the available idle channels and divides the idle channels into two relatively isolated available channel intervals, and allocates them to the two wireless modules as the preferred frequency bands for frequency hopping, so as to achieve the purpose of working independently of each other.

[0032] like Figure 3 As shown, we can roughly divide the entire wireless communication frequency band into three frequency bands. It is worth noting that Figure 3The values ​​of the frequency band range in are only used as examples, and do not exclude the possibility of other values. One is the frequency band where the main interference source is located (the frequency band range of 2.40G~2.44G as shown in the figure), one is the frequency band where the first wireless module works (the frequency band range of 2.44G~2.46G as shown in the figure), and one is the frequency band where the second wireless module works (the frequency band range of 2.46G~2.48G in the figure). Since the working environment of the two wireless modules is basically the same, the interference sources they are affected by are basically similar. Therefore, the channel intervals of the working channels applicable to the two wireless modules are also basically the same. Since wireless communication protocols usually specify the scanning and processing of surrounding signal interference by devices through mechanisms such as adaptive frequency hopping, interference detection, continuous channel monitoring, and signal strength detection, so as to ensure that wireless devices can maintain stable connection and communication quality in complex wireless environments, the wireless audio receiving device 202 can estimate the channel where the main interference source is located by scanning the surrounding signals based on the scanning mechanism specified in these protocols, and then reallocate the working channels of the two wireless modules according to the frequency band of the interference source, as far away from the interference source as possible, and the interval between the working channels of the two wireless modules is not easy to produce adjacent channel interference, so that the first wireless module 2021 and the second wireless module 2022 can work simultaneously without interfering with each other. In some embodiments, in order to reduce the channel interference between the working channel of the first wireless module 2021 and the working channel of the second wireless module 2022, the number of channels spaced between the two working channels is greater than the preset number threshold. The preset number threshold designer can set it according to actual needs, and will not repeat it. Alternatively, after determining the frequency band range that can isolate the interference source, the value range near the two endpoints of this frequency band range is divided into working channels as two wireless transmission channels, so that the two working channels have a certain degree of isolation and minimize the interference between the two. Taking the example that the frequency band ranges of the first wireless module 2021 and the second wireless module 2022 in the figure are divided into 10 optional working channels, 2.44~2.444G can be used as the new working channel of the first wireless module, and 2.476G~2.48G can be used as the new working channel of the second wireless module.

[0033] In addition to enabling the two wireless modules to hop frequencies in a timely manner through the frequency hopping strategy, the wireless isolation can also be improved as much as possible through the hardware design.

[0034] The solution proposed in this application can allow different devices to support different wireless transmission protocols. For example, the wireless audio acquisition device 201 is a device that supports a private protocol, and the wireless monitoring device 203 is a device that supports a standard wireless transmission protocol. In this case, the first wireless module 2021 designed by itself implements data transmission based on a custom private protocol, and the second wireless module 2022 implements data transmission based on an existing standard wireless transmission protocol. For another example, if the wireless audio acquisition device 201 and the wireless monitoring device 203 are both devices that support a standard wireless transmission protocol, then the first wireless module 2021 and the second wireless module 2022 can both implement data transmission based on a standard wireless transmission protocol. Alternatively, if the wireless audio acquisition device 201 and the wireless monitoring device 203 are both devices that support a private wireless transmission protocol, then the first wireless module 2021 and the second wireless module 2022 can both implement data transmission based on a private wireless transmission protocol, and so on.

[0035] Taking the Bluetooth protocol as an example, the customized private protocol may be a private 2.4G protocol. In scenarios with high real-time requirements such as live broadcast, it is necessary to ensure low latency and high-quality audio quality of recording, while also taking into account low power consumption, transmission distance and anti-interference performance. The A2DP (Advanced Audio Distribution Profile) used in the standard Bluetooth protocol still has a relatively large latency, and the HFP (Hands-free Profile) protocol is limited by codecs and supports poor audio quality. Therefore, users often choose to support private 2.4G protocols for wireless transmission of audio data. Compared with the standard Bluetooth protocol, the private 2.4G protocol can be deeply customized according to the needs of specific applications, providing more flexible transmission rates, lower latency, and more streamlined system costs. In addition, the private 2.4G protocol can achieve stronger and more stable connection performance than the 2.4G wireless connection technology, with advantages such as millisecond-level response technology, plug-and-play, low power consumption, longer transmission distance, and suitable for high-speed data transmission scenarios. These advantages make the private 2.4G protocol in specific fields, such as high-performance wireless mouse, remote control toys, etc. This application pioneered the application of wireless headphones supporting the private 2.4G protocol to monitoring devices and provided corresponding solutions.

[0036] In an embodiment in which a wireless microphone is used as a wireless audio acquisition device 201 and a wireless headset is used as a wireless monitoring device 203, for considerations of power consumption, delay, and sound quality, the audio transmission between the wireless microphone and the wireless audio receiving device 202 is mostly transmitted using a private 2.4G wireless protocol. The wireless headset can flexibly select a conventional TWS (True Wireless Stereo) headset or a TWS headset supporting a private 2.4G protocol disclosed in the technical solution of this application according to the needs of the user. When a conventional TWS headset is selected, the delay will be greater than that of a TWS headset supporting a private 2.4G protocol, and it is more suitable for real-time monitoring of the live broadcast quality by directors, photographers and other staff in multi-person live broadcast activities. When a TWS headset supporting a private 2.4G protocol is selected, due to its low latency characteristics. In addition to being used for real-time monitoring of the live broadcast quality by directors, photographers and other staff in multi-person live broadcast activities, it is also suitable for single-person live broadcast scenarios (without dedicated staff such as directors or photographers), when the recorder monitors the sound quality of the live broadcast in real time during the live broadcast. Thanks to the design of wireless monitoring and wireless microphones, live streamers can completely get rid of the limitations of wires and can conveniently broadcast and monitor the effects of the live broadcast.

[0037] The following provides different embodiments for TWS headphones and TWS headphones supporting a private 2.4G protocol as monitoring devices.

[0038] Figure 4 The workflow of the wireless audio system for selecting a wireless microphone supporting a private 2.4G wireless protocol and a conventional TWS headset. In the figure, RF0 represents the first wireless module 2021, and RF1 represents the second wireless module 2022.

[0039] S401, RF0 and wireless microphone are paired using a private 2.4G protocol.

[0040] S402, RF1 is paired with the TWS headset using the standard Bluetooth protocol. RF1 serves as the Bluetooth host.

[0041] S403, after the pairing connection is successful, the wireless microphone sends the encoded audio data to RF0 through the private 2.4G protocol wireless channel established in S401. When the wireless microphone encodes the collected audio data, in order to ensure the reliability of wireless transmission and take into account low latency and high-quality audio quality, the LC3+ encoding method can be used.

[0042] S404, RF1 forwards the received audio data to the corresponding module for processing. At this time, the wireless receiving device will first perform decoding processing, and then perform some post-processing after decoding, such as phase synchronization, mixing, etc.

[0043] S405, the processed audio data is sent to RF1, and then sent to the TWS headset by RF1.

[0044] S406, the TWS headset decodes and plays the received audio data. It is worth noting that when RF1 sends mono data, the audio data played by the left and right channels of the TWS headset are the same. When the audio data sent by RF1 is stereo data, the two channels of audio data can be sent to the left and right channels of the TWS headset for playback.

[0045] Figure 5 The workflow of the wireless audio system in which both the wireless microphone and the wireless headset support the private 2.4G wireless protocol. In the figure, RF0 represents the first wireless module and RF1 represents the second wireless module.

[0046] S501, RF0 module is paired with the wireless microphone using a private 2.4G protocol.

[0047] S502, the RF1 module is paired with the private protocol TWS headset using the private 2.4G protocol.

[0048] S503, after the pairing connection is successful, the wireless microphone sends the encoded audio data to the RF0 module through the private 2.4G protocol wireless channel established in S501.

[0049] S504, RF1 forwards the received audio data to the corresponding module for processing. At this time, the wireless receiving device will first perform decoding processing, and then perform some post-processing after decoding, such as phase synchronization, mixing, etc.

[0050] S505, the processed audio data is sent to RF1, and RF1 sends it to the private protocol TWS headset via the private 2.4G protocol.

[0051] S506, the private protocol TWS headset decodes and plays the received audio data.

[0052] It is worth pointing out that for headphones used as monitoring devices, they can be compatible with both the private 2.4G wireless protocol and the standard Bluetooth protocol. When the headphones support both protocols, they can have two working modes. Figure 4 or Figure 5 Before the process, the user can first select one of the working modes. For example, an interactive interface can be provided for the user to select whether the current headset works in TWS headset mode or in private 2.4G headset mode, and then execute the process triggered in this mode. It should be noted that the selection of the mode through the interactive interface is only an example. The designer can choose different ways to implement the working mode selection according to the design requirements.

[0053] Figure 4 and Figure 5 When any of the wireless modules RF0 and RF1 is triggered to perform the frequency hopping process, the wireless module RF0 or RF1 identifies the distribution of the main interference channels according to the strength of the interference signal, and reports the channel information occupied by the main interference source detected to the main control module. The main control module identifies the available idle channels and divides the idle channels into two relatively isolated available channel intervals, which are respectively allocated to the two wireless modules as the preferred frequency bands for frequency hopping, so as to achieve the purpose of working independently of each other. These embodiments can not only meet the requirements of high-quality audio reception, but also monitor the reception effect in real time through wireless headphones. The difficulty of users' inconvenience in monitoring during the reception process is solved, and more convenient and flexible real-time monitoring of recording effects can be achieved.

[0054] from Figure 4-Figure 5 It can be learned from the process that since the audio data needs to be processed in multiple ways, the wireless audio receiving device also has one or more audio processing modules for processing the received audio data. When the audio data received by the wireless audio receiving device comes from more than one device, the audio processing module may also need to mix the audio data received from each of the wireless audio acquisition devices. Several devices that send audio to the wireless audio receiving device may be of the same type (for example, they are all wireless microphones) or different types of devices, and the transmission quality and rate requirements of the audio data of each device are not necessarily the same. A specific example is given below to illustrate.

[0055] like Figure 6 The wireless audio system shown is a live broadcast system. The live broadcast system 60 includes a wireless audio acquisition device 601 (such as a wireless microphone), a sound card device 602 (i.e., an audio receiving device), a monitoring device 603, an accompaniment device 604 (such as a mobile phone 1), and a live broadcast device 605 (such as a mobile phone 2). The wireless microphone 601 collects the host's audio data 6011 and transmits it to the sound card device 602. The accompaniment device 604 transmits the audio data 6041 to the sound card device 602. The sound card device 502 performs mixing and sound effect processing on the audio data 6011 and the audio data 6041, and then outputs the processed mixed data in two ways. One way of mixed data 6021 is output to the live broadcast device 605 as the audio data in the live video stream, and the other way of mixed data 6022 is output to the monitoring device 603, so that the live broadcast user can monitor whether the voice during the live broadcast is abnormal, and whether the sound effect of the processed mixed data meets expectations.

[0056] Considering that in the existing direct system, the sound card device 602 is the center of audio data processing, when different devices are connected to the sound card device 602, they all need to be connected through wired connections, which will make the connection of devices in the entire live broadcast system very cumbersome, which is not conducive to the rapid construction of the live broadcast system. Further considering that during the live broadcast process, the sound card device 602 needs to establish connections with multiple devices and transmit data with these multiple devices, the amount of data to be transmitted is large, and the data types transmitted between these multiple devices are different, and the requirements for transmission delay of these data are also different. For example, the live broadcast process has higher real-time requirements for the host's voice data, while for the accompaniment music, its real-time requirements are lower. Therefore, in the embodiment of the present application, two wireless modules can be set in the sound card device 602, namely the first wireless module 2021 and the second wireless module 2022. The two wireless modules can work based on different wireless transmission protocols to meet the requirements of different data for transmission delay. In this example, the transmission delay of the first wireless module 2021 is lower than the transmission delay of the second wireless module 2022. The first wireless module 2021 can be used to transmit data with high real-time requirements such as voice data, and the second wireless module 2022 can be used to transmit data with low real-time requirements such as audio data transmitted by the accompaniment device. In this way, the wireless audio acquisition device 601, the monitoring device 603, the accompaniment device 604, etc. in the live broadcast system 60 can be connected to the sound card device 602 by wireless connection, simplifying the construction process of the live broadcast system, and by setting two wireless transmission channels with different delays to transmit different types of data, the efficiency of wireless transmission of various data in the live broadcast system and the real-time transmission can be guaranteed.

[0057] The sound card device 602 is a device that can be used to perform various types of processing on audio data, for example, mixing, effect addition, dynamic range control, sound effect volume adjustment, etc. can be performed on the audio data.

[0058] The sound card device 602 includes a first wireless module 2021 and a second wireless module 2022 . The two wireless modules can be integrated on the same chip or on two different chips.

[0059] In order to meet the transmission delay requirements of different types of data during the live broadcast process, the transmission delay of the working channel of the first wireless module 2021 is lower than the transmission delay of the transmission channel of the second wireless module 2022.

[0060] Generally, considering that the live broadcast device 605 is a device produced by a third-party manufacturer, if the mixed data is transmitted to the live broadcast device 605 based on the existing WiFi or Bluetooth protocol, it may not be able to meet the delay requirements of the live broadcast scene. Therefore, a wired connection can be used between the live broadcast device 605 and the sound card device 602 to ensure the real-time data transmission.

[0061] In the current technology, the sound card device 602 in the live broadcast system 60 usually includes buttons, and the user can set the sound effect adjustment parameters by adjusting these buttons to adjust the sound effect of the audio data. However, the setting of the sound effect parameters often requires a professional tuner to operate, which requires the tuner to go to the live broadcast site to adjust the sound effect, which is relatively cumbersome. In order to facilitate the adjustment of the sound effect during the live broadcast, Figure 6 As shown, the live broadcast system 60 may also include a client 606 wirelessly connected to the sound card device 602, and the client 606 may be an APP installed on a personal terminal device such as a mobile phone or a computer. The user may set the sound effect adjustment parameter 6061 through the APP, and the client 606 may send the sound effect adjustment parameter 6061 to the sound card device 602 through the second wireless module 2022. In some scenarios, the sound card device 602 may first perform a mixing process on the audio data 6041 and the audio data 6011 to obtain mixed data, and then adjust the mixed data based on the sound effect adjustment parameter 6061, and then output it to the live broadcast device 605 and the monitoring device 603. In some scenarios, the sound card device 12 may also first perform a sound effect adjustment process on one or both of the audio data 6041 and the audio data 6011, and then perform a mixing process on the two to obtain mixed data. In this way, the tuner does not need to go to the live broadcast site, but can set the sound effect adjustment parameters remotely.

[0062] Of course, in some scenarios, in order to allow live broadcast users to adjust the sound effects without the help of a tuner, some debugging pages can be set in the APP to facilitate live broadcast users to adjust the sound effects. For example, multiple adjustment controls can be set in the debugging interface, and users can touch these adjustment controls to set the sound effect adjustment parameters. At the same time, in order to let users know whether the currently set sound effect adjustment parameters meet expectations, you can also set an audition button in the debugging interface. When the user clicks the button, he can audition the sound effects of the audio adjusted using the currently set sound effect adjustment parameters.

[0063] In some embodiments, considering that the wireless audio acquisition device 601, the sound card device 602, and the monitoring device 603 in the live broadcast system 60 are usually used in conjunction with each other, they are generally produced by the same manufacturer, while the accompaniment device 604 and the personal terminal equipped with the client 606 for setting the sound effect adjustment parameters are usually produced by other manufacturers. In order to allow the sound card device 602 to achieve wireless connection with the accompaniment device 604 and the personal terminal produced by other manufacturers, the second wireless module can realize data transmission based on the existing standard wireless transmission protocol, for example, it can work based on some common wireless transmission protocols such as WiFi and Bluetooth, so that the sound card device 602 can achieve wireless connection with the equipment produced by other manufacturers. Considering that the wireless audio acquisition device 601 and the monitoring device 603 need to ensure low latency and high-quality audio quality for recording and monitoring, and also need to take into account low power consumption, transmission distance and anti-interference performance, therefore, for the first wireless module 2021, it can achieve wireless transmission through a customized private protocol. For example, the private protocol can be a customized 2.4G private protocol, which can flexibly select the codec protocol according to the delay and quality requirements of the wireless audio acquisition device 601 and the monitoring device 603 for the audio, and follow the basic wireless communication rules (3 broadcast channels and 37 data communication channels) and the anti-interference frequency hopping mechanism. Before the connection is established, the wireless audio acquisition device 601, the monitoring device 603 and the sound card device 602 can exchange relevant information through the broadcast channel and establish a connection for subsequent audio data transmission.

[0064] In some embodiments, in order to simplify the live broadcast system, the client 606 can be installed in the accompaniment device 604. For example, the accompaniment device 604 can be a personal terminal such as a mobile phone or a tablet, and the client 16 can be installed on the personal terminal. Thus, the accompaniment audio can be provided through one device, and the remote setting of the audio adjustment parameters can be realized.

[0065] In some embodiments, considering that the sound card device 602 is used as an audio data processing center, it needs to establish wireless connections with multiple devices and process multiple channels of data. In order to improve its processing performance, Figure 7As shown, the sound card device 602 may include two main control chips, and the first wireless module 2021 and the second wireless module 2022 are respectively integrated on the two main control chips. Considering that the two wireless transmission channels can work at the same time, in order to reduce the interference of the two wireless transmission channels to the other wireless transmission channel during the operation, any one of the two main control chips can determine the working channel of the wireless module integrated in itself based on the working channel of the wireless module integrated in the other main control chip. For example, assuming that the sound card device 602 includes a main control chip 6021 and a main control chip 6022, the first wireless module 2021 is integrated on the main control chip 6021, and the second wireless module 2022 is integrated on the main control chip 6022. In order to avoid the first wireless module 2021 from interfering with the second wireless module 2022, when the main control chip 6022 determines the current working channel of the second wireless module 2022, it can first obtain the channel identifier of the current working channel of the first wireless module 2021 from the main control chip 6021 (assuming it is channel A), and then determine the working channel of the second wireless module based on channel A. The working channel is a channel that will not interfere with channel A as much as possible.

[0066] Among them, the solutions of the above-mentioned embodiments can be freely combined to obtain new solutions when there is no conflict. Due to space constraints, they will not be listed one by one here.

[0067] Correspondingly, an embodiment of the present application also provides a computer storage medium, in which a program is stored. When the program is executed by a processor, the functions of the client in the live broadcast system introduced in any of the above embodiments are implemented.

[0068] The embodiments of the present application may take the form of a computer program product implemented on one or more storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing program code. Computer-usable storage media include permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include but are not limited to: phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0069] For the device embodiment, since it basically corresponds to the method embodiment, the relevant parts can refer to the partial description of the method embodiment. The device embodiment described above is only schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

[0070] The user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0071] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0072] The method and device provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of the present application should not be understood as a limitation on the present application.

Claims

1. A wireless audio receiving device, characterized in that: The wireless audio receiving device is connected to the wireless audio collecting device and the wireless monitoring device respectively; The wireless audio receiving device comprises a first wireless module, a second wireless module and a main control module, and the first wireless module and the second wireless module have different working channels; The first wireless module is used to receive real-time audio data collected by the wireless audio collection device and monitor noise signals; The second wireless module is used to synchronously send the received real-time audio data to the monitoring device and monitor the noise signal; The main control module is used to send the real-time audio data received by the first wireless module to the second wireless module, and control the first wireless module and the second wireless module to switch working channels based on the frequency band of the noise signal monitored by the first wireless module or the second wireless module, and the number of channels between the working channel of the first wireless module after switching and the working channel of the second wireless module after switching is greater than a preset number threshold.

2. The device according to claim 1, characterized in that The first wireless module implements the transmission of the real-time audio data based on a user-defined private protocol, and the second wireless module implements the transmission of the real-time audio data based on an existing standard wireless transmission protocol.

3. The device according to claim 1, characterized in that The first wireless module and the second wireless module both implement data transmission based on a custom private protocol.

4. The device according to claim 2, characterized in that The existing standard wireless transmission protocol includes the Bluetooth protocol, and the private protocol is a private 2.4G protocol.

5. A wireless monitoring device, characterized in that: It comprises a receiving module for receiving audio data sent by the wireless audio receiving device according to any one of claims 1 to 4, and a playing module for playing the audio data.

6. The wireless monitoring device according to claim 5, characterized in that: The wireless monitoring device includes a Bluetooth headset, and the Bluetooth headset supports a proprietary 2.4G protocol and / or a Bluetooth protocol.

7. A live audio system, comprising the wireless audio receiving device according to any one of claims 1 to 4, and the wireless monitoring device and wireless audio acquisition device according to claim 5 or 6.

Images