Digital director system applied to audio-video streaming platform

Abstract

The invention provides a digital director system applied to an audio-video streaming platform, which comprises a plurality of audio-video devices and an audio-video streaming platform, and each audio-video device is in network connection with the audio-video streaming platform and is respectively used by an audience; the audio-video device is used for capturing at least one instant sound and image signal of audiences and comprises a song requesting interface, an instant audio-video uploading unit, a microphone, a vocal accompaniment music mixing unit and an instant information issuing unit; the audio-video streaming platform comprises a song database, a song requesting management module, a singer selection interface, an audio-video integration and output module and an instant information management system; the audio-video integration and output module integrates the instant sound and image signals of the audience and the subtitle picture of the vocal accompaniment into a live audio-video stream and pushes the live audio-video stream to each audio-video device so as to live broadcast the audio-video stream sung by the audience instantly.

Description

Technical Field

[0001] The present invention relates to a digital broadcasting system applied on a video and audio streaming platform, and more particularly to a digital broadcasting system that allows viewers to sing in real time during a live television program. Background Art

[0002] As consumer habits change, shopping is no longer limited to physical stores. Consumers can also choose to order goods through TV shopping. Consumers do not need to go out, but can watch the host introduce the product's efficacy, price, ordering method and other information on TV programs to decide whether to order the product by phone.

[0003] In the current TV shopping, some live shopping programs, such as those focusing on selling medicines or daily necessities, have arranged a time for the audience to sing in real time during the live broadcast in order to narrow the distance between the program host and the audience. When the business time is over, the program host can also invite the audience to request songs and sing online. At this time, the audience who want to sing can use the phone call in to enter the program and sing with the melody of the song played on the TV program using the phone microphone.

[0004] In the past, when such live singing was performed on TV programs, the audience had to hold a phone or microphone to sing, which was extremely inconvenient and the sound quality was extremely poor. Furthermore, when the audience was singing, other audiences could only enjoy the singing of the audience through the live director of the TV program. Therefore, the use of live singing in TV programs in the past could not cause much entertainment, and the interaction between the audience was extremely low. Summary of the invention

[0005] One object of the present invention is to provide a digital director system applied on an audio and video streaming platform, which includes a plurality of audio and video devices and an audio and video streaming platform. Each audio and video device is connected to the audio and video streaming platform through a network and is used by a viewer respectively. The audio and video device includes a sound capture unit, an image capture unit, an audio and video playback unit, an instant audio and video upload unit, a microphone, a singing music mixing unit and a song request interface. The audio and video streaming platform is a platform controlled by a TV program host, which is used to produce and broadcast the audio and video streaming content of TV programs, and includes a song database, a song request management module, a singer selection interface and an audio and video integration and output module. The TV program host of the audio and video streaming platform specifies one of the audience members to sing in real time through the singer selection interface, and the audience can select one of the songs from the song database for singing in advance through the song request interface of the audio and video device before singing. When the audience uses the microphone to sing, the audio-visual device uses the sound capture unit and the image capture unit to capture at least one real-time sound signal and at least one real-time audience image respectively, and transmits the real-time sound signal and the real-time audience image to the audio-visual streaming platform. The real-time sound signal is a sound signal mixed with the sound emitted by the audience using the microphone and the music of the accompaniment song. Afterwards, the audio-visual integration and output module of the audio-visual streaming platform integrates the real-time sound signal, real-time audience image, and the music and subtitles of the selected accompaniment song into a live audio-visual stream, and pushes the live audio-visual stream to each audio-visual device. In this way, other online viewers receive the live broadcast of the audio-visual stream through the audio-visual device, and will be able to enjoy the real-time singing performance of the selected audience in the audio-visual screen scene of the accompaniment song.

[0006] Another object of the present invention is to provide a digital director system applied to an audio-visual streaming platform, wherein the audio-visual device further includes an instant message publishing unit, and the audio-visual streaming platform further includes an instant message announcement system. When the online audience wants to cheer or encourage the performance of the live singer, they can also input at least one instant message related to cheering or encouragement through the instant message publishing unit of the audio-visual device and transmit the instant message to the audio-visual streaming platform. When the instant message announcement system of the audio-visual streaming platform receives the instant message, it will push the instant message to each audio-visual device so that the instant message can be announced on the screen of the live audio-visual streaming. In this way, when the audience is singing, other audiences can encourage the audience who is singing by sending flowers, rewards or cheering instant messages, so as to increase the interactivity between the audiences and enhance the entertainment of TV shopping.

[0007] Another object of the present invention is to provide a digital director system applied to a video streaming platform, which provides a real-time video streaming playback program. The real-time video streaming playback program can be installed in an audio-visual device or a mobile communication device. The user of the audio-visual device or the mobile communication device can also use the real-time video streaming playback program to watch the live broadcast of the video streaming. When the user of the audio-visual device or the mobile communication device finds that the singer who is singing is his family member or friend, he can use instant messaging software, such as Line, FB message, WhatsAPP or WeChat, to send an instant sharing message to the audio-visual device or mobile communication device used by the family member or friend, so as to notify the family member or friend to watch the live performance of his family member or friend through the instant sharing message. Later, when the family members and friends go online to watch the live performance of their family members and friends, if they want to cheer or encourage their family members and friends, they can use the instant message announcement system to announce instant messages such as likes, flowers or shaking on the live video streaming screen. In this way, during the TV shopping process, viewers can not only enjoy the fun of singing, but also receive instant encouraging messages from other viewers so as to care for their family or friends, thereby increasing the interactive relationship between people.

[0008] To achieve the above-mentioned purpose, the present invention provides a digital director system applied to an audio-visual streaming platform, including: multiple audio-visual devices, each of which is used by a viewer and includes: a processor; a microphone; a backing music mixing unit; a sound capture unit for capturing at least one real-time sound signal, wherein the real-time sound signal is a sound signal mixed by the sound emitted by the viewer using the microphone and the music of a backing song; an audio-visual playback unit for playing a live audio-visual streaming; a first network transmission interface for receiving the live audio-visual streaming via the network; and a real-time audio-visual uploading unit, wherein the processor is connected to the microphone, the backing music mixing unit, the sound capture unit, the audio-visual playback unit, the first signal transmission interface and the real-time audio-visual uploading unit; and an audio-visual streaming platform, including: a main controller; a song database for storing multiple backing songs; a song management A module is provided for selecting one of the accompanying songs from the song database; a singer selection interface is provided for selecting the audience of one of the audio-visual devices for real-time singing; a second network transmission interface is provided for each audio-visual device to be connected to the second signal transmission interface of the audio-visual streaming platform through the first signal transmission interface network, the real-time audio-visual uploading unit of the audio-visual device uses the first signal transmission interface to upload the real-time sound signal to the audio-visual streaming platform, and the second signal transmission interface receives the real-time sound signal uploaded by the audio-visual device; and an audio-visual integration and output module is provided for integrating the real-time sound signal of one of the audience selected by the singer selection interface with the music and subtitles of the accompanying song selected by the song request management module into a live audio-visual streaming, and pushing the live audio-visual streaming to each audio-visual device; wherein the main controller is connected to the song database, the song request management module, the singer selection interface, the second network transmission interface and the audio-visual integration and output module.

[0009] In one embodiment of the present invention, the audio and video streaming platform includes a member management database, which is connected to the main controller and stores a viewer photo of each audio and video device. The singer selection interface captures the audience photo of the selected singing audience from the member management database. The audio and video integration and output module integrates the real-time sound signal of the selected singing audience, the audience photo, and the music and subtitles of the accompanying song selected by the song request management module into a live audio and video stream. The audience photo will be used as a background screen during the live audio and video stream.

[0010] In one embodiment of the present invention, the audio-visual device includes an image capture unit connected to a processor, the image capture unit is used to capture a real-time audience image of the audience of the audio-visual device, the real-time audience image is transmitted to the audio-visual streaming platform through the first network transmission interface and the second network transmission interface, the audio-visual integration and output module of the audio-visual streaming platform integrates the real-time sound signal and the real-time audience image of the audience selected by the singer selection interface with the music and subtitles of the accompaniment song selected by the song request management module into a live audio-visual stream, and pushes the live audio-visual stream to each audio-visual device.

[0011] In one embodiment of the present invention, the audio-visual device includes an instant message publishing unit, which allows the viewer of the audio-visual device to input an instant message, and the message is transmitted to the audio-visual streaming platform through the first network transmission interface and the second network transmission interface; the audio-visual streaming platform includes an instant message announcement system, and when the audio-visual streaming platform receives the instant message transmitted by at least one audio-visual device, the instant message announcement system pushes the instant message transmitted by the viewer of the audio-visual device to each audio-visual device, so as to announce the instant message on the screen of the live audio-visual streaming played by each audio-visual device.

[0012] In one embodiment of the present invention, the audio-visual device includes a song request interface, and the song number input unit is used to allow the audience to input a song number. The audio-visual device transmits the song number to the second network transmission interface of the audio-visual streaming platform through the first network transmission interface; the singer selection interface of the audio-visual streaming platform includes a list of singers to be singers. When the audio-visual streaming platform receives the song number transmitted by the audience through the audio-visual device, the audience who sent the song number is included in the list of singers to be singers. The singer selection interface selects one of the singers to be singers from the list of singers to be singers for real-time singing.

[0013] In one embodiment of the present invention, the singer selection interface of the video streaming platform arranges the list of singers in order according to the order of the song numbers received from each viewer.

[0014] In one embodiment of the present invention, the audio-visual device includes a singing request component, and the viewer of the audio-visual device issues a singing request instruction to the audio-visual streaming platform by operating the singing request component; the singer selection interface of the audio-visual streaming platform includes a list of singers to be singers. When the audio-visual streaming platform receives the singing request instruction issued by the viewer through the audio-visual device, the viewer who issued the singing request instruction is included in the list of singers to be singers. The administrator of the audio-visual streaming platform selects one of the singers to be singers from the list of singers to be singers through the singer selection interface for real-time singing, or the system automatically specifies the singers in order according to the arrangement order of the singers to be singers in the list of singers to be singers.

[0015] In one embodiment of the present invention, the song request interface is a button on a remote controller of the audio-visual device, a button on a keyboard, or an operation button on a graphical user interface.

[0016] In one embodiment of the present invention, a video streaming platform stores a real-time video streaming playback program. A video device or a mobile communication device connects to the video streaming platform and downloads the real-time video streaming playback program from the video streaming platform. The video device or the mobile communication device uses the real-time video streaming playback program to watch the live video streaming. The viewer of the video device or the mobile communication device uses an instant messaging software to send an instant sharing message to other video devices or mobile communication devices, so as to notify the viewer of other video devices or the user of the mobile communication device to use the real-time video streaming playback program to watch the live video streaming online.

[0017] In one embodiment of the present invention, there is a QR code on the screen of the live video streaming. When the viewer of the video device scans the QR code on the screen of the live video streaming with a mobile communication device, the network connection of the live video streaming is obtained, and then the network link of the live video streaming is shared with other people through an instant messaging software. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a system structure diagram of an embodiment of a digital director system applied on a video and audio streaming platform according to the present invention.

[0019] Figure 2 It is a system structure diagram of another embodiment of the digital director system of the present invention applied on the video and audio streaming platform.

[0020] Figure 3 It is a system structure diagram of another embodiment of the digital director system of the present invention applied on the video and audio streaming platform.

[0021] Explanation of reference numerals: 100-digital broadcasting system; 101-digital broadcasting system; 102-digital broadcasting system; 10-audio-visual device; 11-processor; 12-sound capture unit; 121-real-time sound signal; 13-audio-visual playback unit; 14-first network transmission interface; 15-microphone; 16-accompaniment music mixing unit; 17-image capture unit; 171-real-time audience image; 18-real-time audio-visual streaming playback program; 181-singing request; 1811-singing request instruction; 183-real-time audio-visual upload unit; 185-song request interface; 1851-song number; 187-real-time Information release unit; 1871-instant message; 19-instant messaging software; 191-instant information sharing; 20-audio and video streaming platform; 21-main controller; 22-song database; 221-backing songs; 23-song request management module; 24-singer selection interface; 241-list of singers to be sung; 25-second network transmission interface; 26-audio and video integration and output module; 261-live audio and video streaming; 2611-network link; 262-QR code; 27-membership management database; 271-audience photos; 28-instant message announcement system; 29-software database; 30-mobile communication device. DETAILED DESCRIPTION

[0022] See also Figure 1 , is a system structure diagram of an embodiment of a digital broadcasting system applied on a video and audio streaming platform of the present invention. Figure 1 As shown, the digital broadcasting system 100 of the present invention is applied to the sale of goods (such as medicines or other products) in a TV shopping program and the live broadcast of real-time singing, and includes a plurality of audio-visual devices 10 and an audio-visual streaming platform 20. Each audio-visual device 10 is connected to the audio-visual streaming platform 20 via a wired or wireless network.

[0023] Each audio-visual device 10 is used by a viewer, and can be an audio-visual device that can play audio-visual streaming, such as a smart TV, a set-top box, a tablet computer, a personal computer, a laptop computer, a mobile phone or a mobile communication device. The audio-visual device 10 includes a processor 11, a sound capture unit 12, an audio-visual playback unit 13, a first network transmission interface 14, a microphone 15 and a accompaniment music mixing unit 16. The processor 11 is connected to the sound capture unit 12, the audio-visual playback unit 13, the first network transmission interface 14, the microphone 15 and the accompaniment music mixing unit 16. The sound capture unit 12 can also be a device with a sound receiving function. The audio-visual playback unit 13 can also be a device that can play sound and images, such as a speaker, a display or a combination of the two. The first network transmission interface 14 is a transmission interface that connects to the network in a wired or wireless manner.

[0024] The video streaming platform 20 is a platform controlled by a TV host or manager, and is used to produce and broadcast the video streaming content of the TV program. It includes a main controller 21, a song database 22, a song order management module 23, a singer selection interface 24, a second network transmission interface 25, a video integration and output module 26, and a software database 29. The main controller 21 is connected to the song database 22, the song order management module 23, the singer selection interface 24, the second network transmission interface 25, the video integration and output module 26, and the software database 29. The song database 22 stores a plurality of accompaniment songs 221, each of which includes a subtitle lyrics and a music melody. The song order management module 23 is used to manage the accompaniment songs 221 in the song database 22, and can select the accompaniment songs 221 from the song database 22. The singer selection interface 24 includes a list of singers to be 241. The host of the video streaming platform 20 selects one of the singers from the list of singers 241 to sing in real time through the singer selection interface 24, or the singer selection interface 24 selects one of the singers to sing in real time according to the arrangement order or membership level of the singers in the list of singers 241. The song order management module 23 and the singer selection interface 24 can also be a software graphical operation interface or physical buttons that cooperate with the display screen operation. The second network transmission interface 25 is a transmission interface that connects to the network in a wired or wireless manner. Each audio-visual device 10 is connected to the video streaming platform 20 through the first network transmission interface 14 and the second network transmission interface 25. The audio-visual integration and output module 26 can also produce a live audio-visual stream 261, and push the live audio-visual stream 261 to each audio-visual device 10 through the network. Furthermore, in one embodiment of the present invention, the video device 10 can be connected to a network store, such as the Google Play store or the Apple App store, to download a real-time video streaming program 18, and install the real-time video streaming program 18 in the video device 10. The video device 10 uses the real-time video streaming program 18 to broadcast the video stream 261. Alternatively, in another embodiment of the present invention, the software database 29 stores a real-time video streaming program 18. The user can connect the video streaming platform 20 through the video device 10 to download the real-time video streaming program 18 from the software database 29.

[0025] The audience watches the TV shopping program produced and broadcasted by the video streaming platform 20 through the corresponding audio-visual device 10. In one embodiment of the present invention, when the audience watches the TV shopping program, if they want to sing during the real-time singing period, they can also use the operation of a singing request component 181 of the audio-visual device 10 to generate a singing request instruction 1811. The singing request instruction 1811 will be transmitted to the video streaming platform 20. When the video streaming platform 20 receives the singing request instruction 1811 issued by the audience, the singer selection interface 24 will list the audience who issued the singing request instruction 1811 in the waiting singer list 241, and then the host or manager of the video streaming platform 20 selects one of the waiting singers from the waiting singer list 241 through the singer selection interface 24 to perform real-time singing. In one embodiment of the present invention, the singing request component 181 can also be a button on a remote control of the audio-visual device 10, a button on a keyboard, or an operation button of a graphical user interface on a real-time audio-visual streaming playback program 18.

[0026] Furthermore, the video streaming platform 20 includes a member management database 27 connected to the main controller 21. When the viewer connects to the video streaming platform 20 for the first time through the video device 10, it is necessary to register as a member to register the viewer's basic data and the device unique code of the video device 10 used in the member management database 27. Furthermore, the packet of the singing request instruction 1811 sent by the viewer through the video device 10 includes the device unique code of the video device 10. When the video streaming platform 20 receives the packet of the singing request instruction 1811, it extracts the device unique code of the video device 10 from the packet of the singing request instruction 1811, and identifies the viewer's identity from the member management database 27 through the device unique code of the video device 10, so as to include the viewer in the waiting singer list 241.

[0027] In one embodiment of the present invention, before singing, the audience as a singer can transmit the name of the song they want to sing to the audio-visual streaming platform 20 in the form of voice request through the audio-visual device 10, such as the sound capture unit 12 captures the sound of the audience saying the name of the designated song. When the host of the audio-visual streaming platform 20 hears the name of the song requested by the audience, he will assist in requesting the song according to the song name specified by the audience.

[0028] Next, when one of the audience members is selected as the singer for the live singing, the selected audience member can start to sing. The selected audience member sings with the microphone 15 under the background of the music of the accompaniment song 221. During the singing process of the audience member, the sound capture unit 12 of the audio-visual device 10 captures at least one real-time sound signal 121 at the same time. The real-time sound signal 121 is a sound signal mixed by the accompaniment music mixing unit 16 with the sound emitted by the microphone 15 and the music of the accompaniment song 221. The audio-visual device 10 transmits the real-time sound signal 121 to the audio-visual streaming platform 20 through the first network transmission interface 14. After receiving the real-time audio signal 121 through the second network transmission interface 25, the audio and video streaming platform 20 integrates the real-time audio signal 121 of the selected singing audience with the music and subtitles of the accompaniment song 221 selected by the song request management module 23 into a live audio and video stream 261 using the audio and video integration and output module 26, and pushes the live audio and video stream 261 to each audio and video device 10, so that other online viewers can receive the live audio and video stream 261 through the audio and video device 10 and enjoy the real-time singing performance of the selected audience in the audio and video scene of the accompaniment song 221.

[0029] Furthermore, when the audience of the audio-visual device 10 registers with the main controller 21, at least one audience photo 271, such as a personal photo, can also be registered. The audio-visual streaming platform 20 stores the audience photo 271 in the member management database 27. When the audience selected to sing wants to sing, the singer selection interface 24 grabs the audience photo 271 from the member management database 27 according to the selected audience, and the audio-visual integration and output module 26 integrates the real-time sound signal 121 of the selected audience, the audience photo 271, and the subtitle screen of the accompanying song 221 selected by the song request management module 23 into a live audio-visual streaming 261, and transmits the integrated live audio-visual streaming 261 to each audio-visual device. Then, the audience photo 271 will be used as the background of the audio-visual device 10 when broadcasting the audio-visual streaming 261 live. Therefore, the audience photo 271 is presented on the background screen of the video stream 261 so that other online viewers can clearly see the appearance of the audience singing.

[0030] See also Figure 2 , is a system structure diagram of another embodiment of the digital broadcasting system applied to the video and audio streaming platform of the present invention. Figure 1 In the digital broadcasting system 100 of the embodiment, the static audience photo 271 is used as the background image of the video stream 261, while the digital broadcasting system 101 of this embodiment uses the dynamic audience image as the background image of the video stream 261. Figure 2As shown, in the audio-visual streaming platform system 101 of the present embodiment, the audio-visual device 10 further includes an image capture unit 17 connected to the processor 11. During the singing process of the audience, the image capture unit 17 of the audio-visual device 10 synchronously captures at least one real-time audience image 171 of the audience singing, and transmits the real-time audience image 171 to the audio-visual streaming platform 20 through the first network transmission interface 14. After receiving the real-time audience image 171 through the second network transmission interface 25, the audio-visual streaming platform 20 integrates the real-time sound signal 121 of the selected singing audience, the recorded real-time audience image 171, and the subtitles and music of the accompanying song 221 selected by the song request management module 23 into a live audio-visual streaming 261, and pushes the live audio-visual streaming 261 to each audio-visual device 10. In this way, other online viewers receive the live video stream 261 through the video device 10 and enjoy the audio-visual dynamic singing performance of the selected viewer in the audio-visual scene of the accompanying song 221.

[0031] In addition, the audio-visual device 10 further includes a real-time audio-visual uploading unit 183. When the audio capture unit 12 and / or the image capture unit 17 capture the real-time audio signal 121 and / or the real-time audience image 171 of the audience, the real-time audio-visual uploading unit 183 transmits the real-time audio signal 121 and / or the real-time audience image 171 to the audio-visual streaming platform 20 through the first network transmission interface 14, so that the audio-visual streaming platform 20 can produce and broadcast the audio-visual streaming 261 of the audience singing. In the present invention, the real-time audio-visual uploading unit 183 can also be a processing circuit for uploading audio-visual signals connected to the processor 11, or can also be an audio-visual uploading software embedded in the real-time audio-visual streaming playback program 18.

[0032] See also Figure 3, which is a system structure diagram of another embodiment of the digital broadcasting system applied to the video streaming platform of the present invention. In the digital broadcasting system 102 of this embodiment, the video and audio device 10 also includes a song request interface 185. When the audience watches the TV shopping program through the video and audio device 10, if they want to sing in the real-time singing period, they use the song request interface 185 of the video and audio device 10 to input a song number 1851. The video and audio device 10 transmits the song number 1851 to the second network transmission interface 25 of the video and audio streaming platform 20 through the first network transmission interface 14. The song request interface 185 can also be a button on a remote control of the video and audio device 10, a button on a keyboard, or an operation button of a graphical user interface on a real-time video streaming player 18. After the video and audio streaming platform 20 receives the song number 1851, the song request management module 23 pre-orders a song for the audience to sing according to the song number 1851 input by the audience, and the singer selection interface 24 lists the audience who sent the song number 1851 in the list of singers to be sung 241. Then, the singer selection interface 24 of the video streaming platform 20 arranges the waiting singer list 241 according to the order of the song numbers 1851 sent by each viewer, and determines the order of singing according to the order of the waiting singers arranged in the waiting singer list 241. In addition, the packet of the song number 1851 transmitted by the audio-visual device 10 can also be embedded with the device unique code of the audio-visual device 10. When the audio-visual streaming platform 20 receives the packet of the song number 1851, it can extract the device unique code of the audio-visual device 10 from the packet of the song number 1851, and identify the identity of the viewer from the member management database 27 through the device unique code of the audio-visual device 10, and then the viewer can be included in the waiting singer list 241.

[0033] Further, see Figure 1 , Figure 2 or Figure 3In the digital director system 100 / 101 / 102 of each embodiment, the real-time audio and video streaming program 18 also includes an instant message publishing unit 187. The instant message publishing unit 187 is an information bar composed of a graphical user interface. When other online viewers watch the live audio and video streaming 261, if they want to cheer or encourage the current singing audience, they can also enter at least one instant message 1871 on the instant message publishing unit 187, and transmit the instant message 1871 to the audio and video streaming platform 20 through the first network transmission interface 14. In the present invention, the instant message 1871 can also be a combination of text, graphics and / or symbols. Furthermore, the audio and video streaming platform 20 includes an instant message announcement system 28. When the real-time message announcement system 28 of the video streaming platform 20 receives the real-time messages 1871 transmitted by at least one video device 10, the real-time messages 1871 will be pushed to each video device 10 to announce the real-time messages 1871 on the screen of the live video streaming 261. In this way, when the audience is singing, other audiences can encourage the audience who is singing by sending flowers, giving tips or cheering, so as to increase the interactivity between the audiences and further enhance the entertainment of TV shopping.

[0034] Furthermore, when the audience watches the live video streaming 261 broadcasted by the audio-visual device 10 and the singer singing is their family or friend, they can use an instant messaging software 19 to send an instant sharing message 191 to a mobile communication device 30 used by other viewers, so as to notify their family and friends through the instant messaging software 19 to use the audio-visual device 10 or the mobile communication device 30 to log on to the audio-visual streaming platform 20 to watch the live video streaming 261 of their family or friend. Later, when family and friends watch the live singing of their family or friend online, they can post instant messages 1871 such as likes, flowers or comments on the live video streaming screen through the instant message announcement system 28. In this way, during the process of TV shopping, the audience can not only enjoy the fun of singing, but also care for their family or friends through the encouragement of the instant message 1871, thereby increasing the interactive relationship between people.

[0035] Alternatively, there is a QR code 262 on the screen of the live video stream 261. When the audience watches the live video stream 261 broadcasted by the audio-visual device 10 and the singer singing is their family or friend, they use the mobile communication device 30 to scan the QR code 262 to obtain the network link 2611 of the live video stream 261. The mobile communication device 30 shares the network link 2611 of the live video stream 261 to the mobile communication device 30 or the audio-visual device 10 used by family or friends through the instant messaging software 19, such as Line, FB message, WeChat or WhatsAPP. After that, the family or friends receive the network link 2611, and click on the network link 2611 using the instant video stream playback program 18 of the mobile communication device 30 or the audio-visual device 10 to watch the live video stream 261 of the singing performance of their family or friend. In addition, while family and friends are watching the live broadcast, they can use the information announcement function provided by the video streaming platform 20 to push instant messages 1871 such as likes, flowers, or shake the Internet, etc. to the live video streaming screen, so as to encourage their family and friends who are singing through instant messages 1871, thereby increasing the interaction between family and friends.

[0036] The above is only one embodiment of the present invention and is not intended to limit the scope of the present invention. That is, all equivalent changes and modifications made according to the shape, structure, characteristics and spirit described in the claims of the present invention should be included in the scope of the present invention.

Claims

1. A digital broadcasting system applied to a video streaming platform, characterized in that: include: A plurality of audio-visual devices, each of which is used by a viewer and includes: A processor; A microphone; a backing music mixing unit; A sound capture unit, used to capture at least one real-time sound signal, wherein the real-time sound signal is a sound signal mixed with the sound emitted by the audience using the microphone and the music of a singing song; A video playback unit for playing a live video stream; a first network transmission interface for receiving the live video and audio stream via a network; and a real-time audio and video uploading unit, wherein the processor is connected to the microphone, the accompaniment music mixing unit, the sound capturing unit, the audio and video playing unit, the first signal transmission interface and the real-time audio and video uploading unit; and A video streaming platform, including: a main controller; A song database storing a plurality of singing songs; A song selection management module is used to select one of the accompanying songs from the song database; A singer selection interface for selecting a viewer of the audio-visual device to sing in real time; a second network transmission interface, each of the audio-visual devices is connected to the second signal transmission interface of the audio-visual streaming platform through the first signal transmission interface network, the real-time audio-visual uploading unit of the audio-visual device uses the first signal transmission interface to upload the real-time audio signal to the audio-visual streaming platform, and the second signal transmission interface receives the real-time audio signal uploaded by the audio-visual device; and A video and audio integration and output module integrates the real-time sound signal of one of the audience members selected by the singer selection interface and the music and subtitles of the accompanying song selected by the song request management module into the live video and audio stream, and pushes the live video and audio stream to each of the audio and video devices; wherein the main controller is connected to the song database, the song request management module, the singer selection interface, the second network transmission interface and the video and audio integration and output module.

2. The digital broadcasting system applied to the video and audio streaming platform as claimed in claim 1, characterized in that: The audio-visual streaming platform includes a member management database, which is connected to the main controller and stores a photo of the audience of each audio-visual device. The singer selection interface captures the audience photo belonging to the selected singer from the member management database. The audio-visual integration and output module integrates the real-time sound signal of the selected singer, the audience photo, and the music and subtitles of the accompaniment song selected by the song ordering management module into the live audio-visual streaming. The audience photo will serve as a background screen when the audio-visual streaming is broadcast live.

3. The digital broadcasting system applied to the video and audio streaming platform as claimed in claim 1, characterized in that: The audio-visual device includes an image capture unit connected to the processor, and the image capture unit is used to capture a real-time audience image of the audience of the audio-visual device. The real-time audience image is transmitted to the audio-visual streaming platform through the first network transmission interface and the second network transmission interface. The audio-visual integration and output module of the audio-visual streaming platform integrates the real-time sound signal of the audience singing selected by the singer selection interface and the real-time audience image with the music and subtitles of the accompaniment song selected by the song request management module into the live audio-visual streaming, and pushes the live audio-visual streaming to each of the audio-visual devices.

4. The digital broadcasting system applied to the video and audio streaming platform as claimed in claim 1, characterized in that: The audio-visual device includes an instant message publishing unit, which provides the viewer of the audio-visual device with an input of an instant message, and the message is transmitted to the audio-visual streaming platform through the first network transmission interface and the second network transmission interface; the audio-visual streaming platform includes an instant message announcement system, when the audio-visual streaming platform receives the instant message transmitted by at least one of the audio-visual devices, the instant message announcement system pushes the instant message transmitted by the viewer of the audio-visual device to each of the audio-visual devices, so as to announce the instant message on the screen of the live audio-visual streaming played by each of the audio-visual devices.

5. The digital broadcasting system applied to the video and audio streaming platform as claimed in claim 1, characterized in that: The audio-visual device includes a song request interface, which is used to allow the viewer to input a song number. The audio-visual device transmits the song number to the second network transmission interface of the audio-visual streaming platform through the first network transmission interface; the singer selection interface of the audio-visual streaming platform includes a list of singers to be singers. When the audio-visual streaming platform receives the song number transmitted by the viewer through the audio-visual device, the viewer who sent the song number is included in the list of singers to be singers. The singer selection interface selects one of the singers to be singers from the list of singers to be singers for real-time singing.

6. The digital broadcasting system applied to the video and audio streaming platform as claimed in claim 5, characterized in that: The singer selection interface of the video streaming platform arranges the list of singers in order according to the order of the song numbers received from each viewer.

7. The digital broadcasting system applied to the video and audio streaming platform as claimed in claim 5, characterized in that: The song request interface is a button on a remote controller, a button on a keyboard or an operation button on a graphical user interface of the audio-visual device.

8. The digital broadcasting system applied to the video and audio streaming platform as claimed in claim 1, characterized in that: The audio-visual device includes a singing request component, and the viewer of the audio-visual device issues a singing request instruction to the audio-visual streaming platform by operating the singing request component; the singer selection interface of the audio-visual streaming platform includes a list of singers to be singers. When the audio-visual streaming platform receives the singing request instruction issued by the viewer through the audio-visual device, the viewer who issues the singing request instruction is included in the list of singers to be singers, and the singer selection interface of the audio-visual streaming platform selects one of the singers to be singers from the list of singers to be singers for real-time singing.

9. The digital broadcasting system applied to the video and audio streaming platform as claimed in claim 1, characterized in that: The video streaming platform stores a real-time video streaming program. The video device or a mobile communication device connects to the video streaming platform and downloads the real-time video streaming program from the video streaming platform. The video device or the mobile communication device uses the real-time video streaming program to watch the live video streaming. The viewer of the video device or the mobile communication device uses an instant messaging software to send a real-time sharing message to other video devices or mobile communication devices, so as to notify other viewers of the video devices or users of the mobile communication devices to use the real-time video streaming program to watch the live video streaming online.

10. The digital broadcasting system applied to the video and audio streaming platform as claimed in claim 1, characterized in that: There is a QR code on the screen of the live video streaming. When the viewer of the video device scans the QR code on the screen of the live video streaming with a mobile communication device, the network link of the live video streaming is obtained, and then the network link of the live video streaming is shared with other people through an instant messaging software.

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