CN210839816U

CN210839816U - Sound effect processing device, karaoke circuit board and television all-in-one machine

Info

Publication number: CN210839816U
Application number: CN202020070024.5U
Authority: CN
Inventors: 张辉
Original assignee: Guangzhou Aimyunion Network Technology Co ltd
Current assignee: Guangzhou Aimyunion Network Technology Co ltd
Priority date: 2019-12-31
Filing date: 2020-01-13
Publication date: 2020-06-23
Anticipated expiration: 2030-01-13

Abstract

The application relates to an audio processing device, a karaoke circuit board and a television all-in-one machine. The audio processing device comprises a core mainboard, an audio digital board and an audio analog circuit which are connected in sequence; the audio digital board comprises an audio bus module, an FPGA chip and a delay network audio circuit; the delay network audio circuit is electrically connected with the FPGA chip to perform interaction of audio data; the audio bus module integrates a plurality of audio interfaces, a power supply interface and a physical layer interface, the FPGA chip is connected with the audio bus module through the audio interfaces, and the delay network audio circuit is connected with the audio bus module through the physical layer interface; the audio bus module acquires audio data through a local area network and transmits the audio data to the delay network audio circuit; and after the audio data output by the FPGA chip passes through the delay network audio circuit to obtain delayed audio data, the delayed audio data is transmitted to the audio bus module through the switch to be connected with corresponding equipment.

Description

Sound effect processing device, karaoke circuit board and television all-in-one machine

[ technical field ] A method for producing a semiconductor device

The application relates to the technical field of audio equipment, in particular to an audio processing device, a karaoke circuit board and a television all-in-one machine.

[ background of the invention ]

With the increasing demand of people on living quality, the demand on the function integration of the television is higher and higher. In particular, in the field of karaoke, the current television processing has not only the functions of displaying and displaying but also the functions of connecting with other devices in a wired manner, but also occupies a large space. Or, the television is that the set top box with the system installs the corresponding applications such as entertainment function APP or singing APP, but in the singing scene, various functions such as audio processing, audio data output delay of audio input equipment such as a microphone and the like often exist for professional optimization, and the experience of singing is greatly reduced.

[ Utility model ] content

In order to overcome the technical problem of audio data output delay of the audio input equipment, the following technical scheme is specially proposed:

in a first aspect, the present application provides an audio processing apparatus, including a core motherboard, an audio digital board, and an audio analog circuit, which are connected in sequence;

in one embodiment, the audio digital board comprises an audio bus module, an FPGA chip and a delay network audio circuit; the delay network audio circuit is electrically connected with the FPGA chip and used for carrying out interaction of audio data;

the audio bus module integrates a plurality of audio interfaces, a power interface and a physical layer interface, the FPGA chip is connected with the audio bus module through the audio interface, and the delay network audio circuit is connected with the audio bus module through the physical layer interface;

the audio bus module acquires audio data through a local area network and transmits the audio data to the delay network audio circuit;

and after the audio data output by the FPGA chip passes through the delay network audio circuit to obtain delayed audio data, the delayed audio data is transmitted to the audio bus module through the switch to be connected with corresponding equipment.

In one embodiment, the delay network audio circuit comprises: the system comprises a switch module and an ultra-low delay network audio module which are connected with each other;

the switch module is connected with a physical layer interface of the audio bus module;

the ultra-low delay network audio module obtains audio data obtained through a local area network through the switch module, and transmits the obtained delayed audio data to the audio bus module through the switch module to connect with corresponding equipment.

In one embodiment, the audio digital board further comprises an audio output/input interface;

the audio output/input interface interacts digital audio data with the wireless audio device.

In one embodiment, the audio digital board further comprises: a DSP processor;

the DSP processor is connected with the FPGA chip and is used for processing the output audio data of the FPGA chip or transmitting the processed audio data to the FPGA chip.

In one embodiment, the audio digital board further comprises an analog board audio interface connected with the FPGA chip;

the audio analog circuit is connected with the audio digital board through the analog board audio interface.

In one embodiment, the audio digital board further comprises: controlling the MCU;

and the control MCU is respectively connected with the DSP and the audio interface of the analog board to carry out interaction of audio data.

In a second aspect, the present application also provides a karaoke circuit board, including: a core motherboard, the audio processing apparatus according to any of the embodiments of the first aspect; the audio processing device is connected with the display device through a video interface, and the audio analog circuit is connected with the microphone and the effect playing equipment.

In a third aspect, the present application further provides a television all-in-one machine, the karaoke circuit board provided in the second aspect, and a display device electrically connected to the core motherboard.

In one embodiment, the television all-in-one machine further comprises: 12V direct current power supply and logic power supply;

the 12V direct current power supply supplies power to the audio processing device through the power interface;

the logic power supply utilizes three-up-three-down independent IIS signals to logically supply power to the audio processing device.

In one embodiment, the television all-in-one machine further comprises: an external device connection module;

the external equipment connecting module is connected with the karaoke circuit board in a built-in or external mode.

According to the technical scheme of the audio processing device, the audio processing system and the television all-in-one machine, the programmable logic array and the delay network audio circuit are used for collecting and superposing a plurality of audio data and synchronously processing the audio data, and the problem that the output of the audio data is delayed in the existing audio processing device is solved.

[ description of the drawings ]

Fig. 1 is an internal schematic diagram of an audio processing apparatus according to an embodiment of the present application;

FIG. 2 is an internal schematic view of an audio digital board provided by an embodiment of the present application;

FIG. 3 is a schematic internal diagram of a television kiosk according to an embodiment of the present application;

fig. 4 is a schematic diagram illustrating a connection structure between a power supply and an audio processing device in a television all-in-one machine according to an embodiment of the present application;

fig. 5 is an application environment diagram of a television all-in-one machine according to an embodiment of the present application.

[ detailed description ] embodiments

The present application is further described with reference to the following drawings and exemplary embodiments, wherein like reference numerals are used to refer to like elements throughout. In addition, if a detailed description of the known art is not necessary to show the features of the present application, it is omitted.

Most of the televisions on the market have self-contained systems, and two main schemes for using the televisions to carry out entertainment activities such as karaoke are available:

the complete karaoke device system is connected with the television through a cable, so that the functions of ordering and singing are met. Existing complete karaoke device systems generally include: the device comprises a host with a song on-demand system, a song-on-demand screen, an audio power amplifier, an external sound box, a U-section receiver, a microphone, a television and the like, wherein the devices are connected through a wire, and the television mainly has a display function.

The set top box using the television self-carrying system or the external set top box using the video-on-demand system is provided with the corresponding singing APP and the entertainment APP, the Bluetooth protocol is adopted to connect the wireless microphone and the external equipment, the television self-carrying loudspeaker or the external wired sound box is used for carrying out cloud music-on-demand and singing entertainment, and the television has the functions of video-on-demand and display.

Scheme ① is traditional scheme, all be wired connection mode, connect the debugging process complicacy, it is higher to the fitment overall arrangement of service environment, equipment occupies certain space, lead to the use scene single, scheme ② is the internet on demand scheme that is comparatively popular at present, the product is wireless connection, carry out the on demand on the internet through the TV set, easy to use, but because most hardware of TV set on the market mainly satisfy the user and order and watch the video on demand, do not do the professional optimization to multiple functions such as audio frequency processing, the connection delay of microphone under the scene of singing, use scheme ② singing greatly reduced the experience sense of singing.

Referring to fig. 1, fig. 1 is an internal schematic diagram of an audio processing apparatus according to an embodiment of the present application.

In order to solve the above problem, the present application provides an audio processing apparatus, which is connected to an audio input device. The connection may be direct or indirect. The audio digital board performs audio data interaction with the audio input device through an audio interface on the audio digital board.

The audio processing device comprises a core mainboard, an audio digital board and an audio analog circuit which are connected in sequence.

Referring to fig. 2, fig. 2 is an internal schematic view of an audio digital board provided in an embodiment of the present application.

The audio digital board comprises an audio bus module, an FPGA chip (field programmable Gate Array, Chinese) and a delay network audio circuit. And according to the flow sequence of audio data generated by the audio input equipment, the output end of the delay network audio circuit is connected with the input end of the FPGA chip.

The FPGA chip collects audio data obtained through a plurality of transmission channels of an audio input device directly or indirectly connected thereto, and plays the obtained multi-frequency audio data through an audio playing device, such as a wireless audio output device or a light/coaxial output device.

The delay network audio circuit acquires audio data from a network formed by the audio input device and synchronizes the audio data acquired from the plurality of acquired transmission channels.

The audio bus module acquires audio data through a local area network and transmits the audio data to the delay network audio circuit; and after the audio data output by the FPGA chip passes through the delay network audio circuit to obtain delayed audio data, the delayed audio data is transmitted to the audio bus module through the switch to be connected with corresponding equipment.

The audio bus module integrates a plurality of audio interfaces, a power interface and a physical layer interface, the FPGA chip is connected with the audio bus module through the audio interface, and the delay network audio circuit is connected with the audio bus module through the physical layer interface.

The core mainboard is connected with the audio digital board by integrating a plurality of audio interfaces through an audio bus module; the audio digital board also comprises an analog board audio interface connected with the FPGA chip, and the audio analog circuit is connected with the audio digital board through the analog board audio interface. The audio digital board and the audio analog circuit can perform data interaction of multiple paths of IIS audio.

The audio digital board can be indirectly connected with audio input equipment through the core mainboard to acquire audio data.

The audio processing device provided by the application utilizes the delay network audio circuit to carry out delay processing on the acquired audio data acquired by the FPGA chip to obtain delayed audio data, and solves the problem of audio data output delay of the existing audio processing device.

On this basis, the delay network audio circuit comprises a switch module and an ultra-low delay network audio module which are connected with each other.

And the switch module is connected with the physical layer interface of the audio bus module. The switch module connects the audio input device to the local area network through the constructed local area network, namely, the audio processing device can collect audio data generated by the audio input device through the local area network.

And the ultra-low delay network audio module is connected with the audio bus module through the switch module. After the local area network acquires audio data, the local area network carries out audio data interaction with the ultra-low delay network audio module through a physical layer interface, and after the ultra-low delay network audio module carries out synchronous processing on the audio data, the audio data is transmitted to corresponding sound effect playing equipment and played.

The ultra-low delay network audio module is used for synchronizing the acquired audio data of each transmission channel, so that the transmission and playing time sequences of a plurality of audio data are unified, and the problem of audio data output delay is further solved.

In this embodiment, the ultra-low delay network audio module forms the acquired audio data into multi-frequency IIS audio data, and performs synchronous processing on the multi-frequency IIS audio data. Specifically, the multiple audio data obtained from the FPGA chip may be synchronized to form multi-frequency IIS audio data, and the multi-frequency IIS audio data after the synchronization processing may be fed back to the FPGA chip.

In this embodiment, the switch module may construct a local area network through a bluetooth transceiving function of the audio input device to perform audio data interaction, and the ultra-low delay network audio module interacts with the multi-frequency IIS audio data obtained by the FPGA chip. That is, the local area network may be implemented by a bluetooth transceiving function of the audio input device. And each audio input device shares the time sequence information of the respective input audio data with other audio input devices through the respective Bluetooth transceiving function. And the ultralow-delay network audio module obtains the time sequence information of the input audio data of all the audio input equipment through the switch module. Meanwhile, the ultra-low delay network audio module acquires audio data of each audio input device through the FPGA chip, aligns the audio data according to the time sequence information, and transmits and plays the audio data to the corresponding sound effect playing device through the FPGA chip.

If the sound effect processing device is applied to the karaoke field, played music can be used as reference audio of all audio data, and singing sounds of all audio input devices in chorus, antiphonal singing and round singing, such as microphones, of all singers are aligned, so that the singers in different places can also feel the interest of singing together.

The audio digital board may further include an audio output/input interface. The audio output/input interface is used for directly transmitting audio data with the sound effect output equipment or the input equipment.

Specifically, the wireless input device may receive audio data through a Digital MIC, or a wireless microphone may transmit the formed audio data, such as IIS, to the FPGA chip through a wireless microphone receiving component.

Or, the audio data processed by the FPGA chip, such as IIS audio data, is decoded by an audio decoder and then transmitted through a corresponding wireless audio output component or an optical fiber/coaxial output component.

Therefore, the audio data acquired from the wireless input equipment is directly processed and directly played after being decoded, and the influence on the playing sound effect caused by the fact that the audio data is subjected to analog processing and digital processing is avoided.

The audio digital board may further include a DSP processor. This DSP treater accessible dilatation TDMA's data line acquires a plurality of passageway audio data, with the output of FPGA chip is connected, obtains a plurality of transmission channel's audio data, corresponds everyone's sound ray characteristics, adjusts alone every audio data for the audio data of every input and the effect of output audio data are all different, with the broadcast effect of increase audio frequency.

The audio digital board may further include a control MCU (micro controller Unit, full chinese name: micro control Unit). The control MCU is respectively connected with the DSP processor and the audio interface of the analog board and is used for controlling the interaction of the DSP processor and the audio analog circuit with the audio data of the FPGA chip.

The present application further provides a karaoke circuit board comprising the audio processing device provided in any of the above embodiments; the audio processing device is connected with the display device through a video interface, and the audio analog circuit is connected with the microphone and the effect playing equipment. The karaoke circuit board has functions of processing audio data and video data.

The more specific structure is as follows:

an audio processing device comprises a core mainboard, an audio digital board and an audio analog circuit;

the core main board, the audio digital board and the audio analog board are connected in sequence; a plurality of audio data transmission channels are arranged between the core main board and the audio digital board,

the video output interface of the core main board is connected with a screen, the audio output interface of the audio analog circuit is connected with a sound effect playing device, and the audio input interface of the audio analog circuit is connected with a sound collecting device;

and the audio data stream acquired by the audio digital board is transmitted to the audio analog circuit, and the audio analog circuit inputs audio data to the sound effect playing equipment.

A karaoke circuit board comprises a core mainboard, an audio digital board and an audio analog circuit; the core main board, the audio digital board and the audio analog board are connected in sequence; and a plurality of audio data transmission channels are arranged between the core main board and the audio digital board.

The video output interface of the core main board is connected with a screen, the audio output interface of the audio analog circuit is connected with an audio playing device, and the audio input interface of the audio analog circuit is connected with a sound collecting device; and the audio digital board transmits the acquired audio data stream to the audio analog circuit, and the audio analog circuit inputs audio data to the sound effect playing equipment.

A multifunctional integrated television system supporting karaoke comprises a core mainboard, an audio digital board and an audio analog circuit;

the audio digital board collects audio data streams of the audio data transmission channels, superposes the audio data streams, transmits the superposed audio data streams to the audio analog circuit, and the audio analog circuit inputs audio data to the sound effect playing equipment.

In one embodiment, a plurality of audio data transmission channels are arranged between the audio digital board and the audio analog board.

In one embodiment, the video output interface of the core motherboard is connected with a television screen, the audio output interface of the audio analog circuit is connected with a sound effect playing device, and the audio input interface of the audio analog circuit is connected with a sound collecting device.

In one embodiment, the FPGA chip in the audio digital board collects audio data streams of each audio data transmission channel and superimposes the audio data streams, and transmits the superimposed audio data streams to the audio analog circuit, and the audio analog circuit inputs audio data to the sound effect playing device.

In one embodiment, the core motherboard is connected with the audio digital board through a first board connector, and a plurality of channel interfaces and a plurality of data lines for external communication of the core motherboard circuit are led out from the first board connector.

In one embodiment, the audio digital board and the audio analog board are connected through a second board connector, and a plurality of extension connecting channels are arranged on the second board connector, wherein the extension connecting channels are channels for connecting the audio digital board with peripheral equipment or connecting the audio analog board with the peripheral equipment.

In one embodiment, the audio analog circuit comprises an audio uplink, an audio downlink and an isolation device, and the audio uplink and the audio downlink are respectively connected with the audio digital board through the isolation device.

In one embodiment, the audio analog circuit further comprises a power supply device for receiving a current operating mode of the karaoke circuit board and starting a power-on sequence of the current operating mode.

In one embodiment, the core motherboard includes a processor and a PCIE-to-multi-USB expansion circuit, where the PCIE-to-multi-USB expansion circuit is used to expand a plurality of USB interfaces connected to the USB sound card for the processor.

In one embodiment, a plurality of communication interfaces are arranged on the processor, the processor is connected with one or more peripheral devices of a microphone, a motion capture camera, a two-dimensional code scanner and a live broadcast acquisition camera through the communication interfaces, and the processor transmits data and control signals with the peripheral devices through the communication interfaces.

In one embodiment, the core motherboard further includes a network connection module connected to the processor, the network connection module is provided with an ethernet interface, and the network connection module further includes a WiFi module for providing a WiFi network communication interface and a mobile communication module for accessing a mobile communication network.

In one embodiment, the audio digital board comprises an FPGA chip, a DSP processor, an audio decoder and a USB sound card.

The DSP processor, the control processor, the audio decoder and the USB sound card are respectively connected with the FPGA chip.

In one embodiment, the FPGA chip is used to obtain audio and video data streams and to superimpose the audio data streams.

In one embodiment, the DSP processor is used for transmitting multi-path TDMA audio data with the FPGA chip.

In one embodiment, the audio decoder is used for converting the SPDIF audio data into the IIS audio data and inputting the IIS audio data into the FPGA chip, and is also used for converting and outputting the IIS audio data to the wireless sound effect playing device or to a port of the transmission line.

In one embodiment, the USB sound card is configured to transmit IIS audio data to the core motherboard through a USB interface.

In one embodiment, a switch chip for constructing a local area network is integrated on the core motherboard.

In one embodiment, the audio digital board further comprises an ultra-low frequency delay network audio module connected with the FPGA chip, and the ultra-low frequency delay network audio module and the FPGA chip transmit multi-channel IIS audio data.

In one embodiment, the ultra-low frequency delay network audio module obtains the IIS audio data in the lan through a switch chip on the core motherboard.

In one embodiment, a wireless microphone transmits audio data to the FPGA, and a receiver of the wireless microphone is connected to the FPGA through a TYPE-C interface.

In one embodiment, the wireless sound effect playing equipment receives the audio data transmitted by the PFGA, a transmitter of the wireless sound effect playing equipment is connected with the FPGA through a TYPE-C interface, and the FPGA transmits the audio data to the wireless sound effect playing equipment.

In one embodiment, the core motherboard includes a processor and expansion interface circuitry.

In one embodiment, the expansion interface circuit expands the native HDMI video output interface of the processor to include at least one HDMI video output interface and at least one VBO interface.

In one embodiment, a native MIPI DSI interface of the processor is converted to an HDMI video output interface by a MIPI to HDMI chip.

In one embodiment, the processor is further provided with an LVDS interface and an EDP interface, and the HDMI video output interface, the VBO interface, the LVDS interface and the EDP interface are used for inputting video signals to the screen.

In one embodiment, the core motherboard further comprises an HDMI multiplexer and an HDMI-to-MIPI chip.

In one embodiment, the HDMI multiplexer switch includes a plurality of HDMI video input interfaces and at least one outlet, the outlet is connected to the HDMI to MIPI chip, an output terminal of the HDMI to MIPI chip is connected to the MIPI CSI interface of the processor, and the HDMI to MIPI chip is configured to receive video data.

In one embodiment, the output end of the HDMI to MIPI chip is connected to the audio digital board, and the HDMI to MIPI chip is further configured to transmit the acquired audio data to the audio digital board.

Because the CPU in the core mainboard is very fast in updating, the updating is convenient by adopting the modular design, and the new design can be quickly finished only by updating the core mainboard.

In one embodiment, the core motherboard may have rich screen interfaces: EDP (connecting various small screens below 15 inches), LVDS (connecting screens of various sizes from 15 inches to 32 inches), VBO (connecting screens of various sizes from 32 inches to 100 inches, 4K and high-definition), and the design of one core mainboard can be matched with power panels of different specifications, so that the design of a series product can be realized.

In one embodiment, the power panel can select suitable power according to different screen sizes, and is connected with the core mainboard by adopting a multi-core flat cable.

In one embodiment, the core main board and the audio digital board are connected by adopting a multi-pin board connector, so that a plurality of IIS audio input and output connections and SPDIF audio input and output data connections are realized, and meanwhile, a plurality of USB interfaces, COM communication lines, network communication lines, power supplies and power supply control lines can be matched and designed to form digital boards with different functions according to different product requirements, so that the connection is reliable and the replacement is convenient.

In one embodiment, the reliable connection between the analog audio board and the digital audio board is realized by adopting a board connector, and a plurality of audio IIS input and output signal connections, control signal connections and peripheral equipment extension connections are realized in the board connector.

In one embodiment, a unique power supply inversion technology can be adopted to invert the 12V power supply of the system so as to meet the use requirement of an analog audio board. The robustness and high expandability of the analog audio board are improved, and the sound of the microphone and the music can have the warm and humid permeability of analog loop change.

In one embodiment, an interface module can be configured, and a large number of connection interfaces for accessing audio and video data transmission channels are integrated, so that a microphone, an analog circuit, a sound box system and the like can be independently and rapidly connected to the interface module in an iterative manner.

In one embodiment, song resources can be stored and managed in a distributed storage and data sharing mode. The equipment can rapidly access song resources at low cost, and high-speed and high-definition audio and video resource sharing is realized.

In one embodiment, the karaoke integrated television can adopt a centralized bus mode through the karaoke circuit board, and a local area network is independently closed through a host and a device system connected with the host. The local area network can realize the operations of internal hardware management, program upgrading, system upgrading and the like, and the hardware systems are organically connected to form a whole.

Abundant screen interface has in this application core mainboard: EDP (connecting various small screens below 15 inches), LVDS (connecting screens of various sizes from 15 inches to 32 inches), VBO (connecting screens of 4K high definition from 32 inches to 100 inches), and the design of one mainboard can be matched with power panels of different specifications, so that the design of a series product can be realized; meanwhile, two HDMI output interfaces and one TYPE-C interface are arranged outside the device and can be directly connected with the TYPE-C display.

In the aspect of video interfaces, the core mainboard of the application can almost meet various screen sizes, and therefore, the core mainboard can be conveniently used for television set core mainboards with various sizes.

Due to the limitation of the number of CPU interfaces in the core mainboard, a large number of interface circuits are adopted to expand the functions required by the mainboard design.

In ONE embodiment, only ONE native HDMI output interface is adopted BY the CPU, and in order to realize a V BY ONE (VBO for short), firstly, ONE HDMI ONE-in two-out expansion chip is used, and then the HDMI is converted into the V BY ONE chip, so that the VBY ONE interface function is realized; the other path of expanded HDMI is used for direct output, and the HDMI output interface comprises complete audio and video information; the second path of HDMI output adopts a CPU native MIPI DSI interface, and a MIPI-to-HDMI chip is used for realizing the second path of HDMI output interface; meanwhile, the CPU chip is provided with LVDS and EDP interfaces, so that the video output interface function of the core mainboard of the application is greatly enriched; moreover, in an embodiment, as the TV set mainboard, it is also one of indispensable function to receive outside HDMI signal, and this application can adopt HDMI multiple choice switch to add HDMI commentaries on classics MIPI chip, realizes outside HDMI signal video input function through CPU MIPICSI interface, and outside HDMI signal audio data passes through the SPDIF digital audio direct output of HDMI commentaries on classics MIPI chip and is used for audio data to restore to the audio digital board of this application.

Besides abundant video input and output interfaces, the audio interface module also has abundant audio interfaces: in one embodiment, two SPDIF outputs, two IIS outputs and 5 IIS input interfaces are provided, and 5 USB sound cards realize the input and output capabilities of another 10 sound channels. Accumulating audio interfaces capable of realizing 16-channel output and 24-channel input, and realizing 7.2.4(7 surround sounds, 2 subwoofers and 4 sky channels) panoramic sound audio transmission capability and multi-channel recording function;

in one embodiment, the core motherboard also has rich communication interfaces, HID (driver free control interface), SPI, IIC, GPIO, UART; all communication and control functions are completed through the HID and the audio digital board MCU; the peripheral extended function chip of the CPU is controlled through the IIC/SPI; GPIO realizes the key function; the UART realizes the communication control between the CPU and the two-dimension code scanner device.

In one embodiment, the core motherboard may also be equipped with a rich set of peripherals to which the core motherboard may be connected, and the peripherals may include one or more of a microphone array, a motion capture camera, a two-dimensional code scanner, and a camera, such as: the microphone array realizes the functions of voice acquisition and intelligent voice interaction; the motion capture camera is used for face recognition, motion image acquisition, and the like to realize the functions of judging the motions of the dance game; the two-dimensional code scanner is used for realizing a payment function; the camera is used for shooting videos and images and realizing the functions of live video and the like.

In one embodiment, the core main board is further provided with rich network connection interfaces RJ/WIFI/4G, network use requirements of all scenes can be met, a four-port switch chip is integrated in the core main board and used for constructing a small local area network and realizing a network expansion function, and the core main board has a Bluetooth transceiving function and can be connected with all devices with Bluetooth functions, such as a Bluetooth remote controller, a Bluetooth sound box, mobile phone Bluetooth and the like.

In one embodiment, the core motherboard further includes a PCIE-to-multi-USB expansion circuit, and the PCIE-to-multi-USB expansion circuit is configured to expand a plurality of USB interfaces connected to the USB sound card for the processor.

In one embodiment, the processor is provided with an SPDIF audio output interface, two IIS audio output interfaces and five IIS audio input interfaces.

In one embodiment, the processor is provided with a plurality of communication interfaces, and the communication interfaces comprise an HID driving-free protocol interface, an SPI interface, an IIC communication interface, a GPIO interface and a UART interface.

In one embodiment, the HID device interface is used to connect and transmit control signals for establishing communication between the core motherboard and the audio digital board.

In one embodiment, the IIC interface and the SPI interface are respectively configured to output a control signal to a peripheral extended function chip connected to the core motherboard.

In one embodiment, the GPIO interface is configured to transmit a key press signal for the processor.

In one embodiment, the UART interface is used to connect and transmit control signals for establishing communication between the processor and the two-dimensional code scanner.

In one embodiment, the processor is further connected with one or more peripheral devices of a microphone, a motion capture camera, a two-dimensional code scanner and a live broadcast acquisition camera through the communication interface, and the processor transmits data and control signals with the peripheral devices through the communication interface.

In one embodiment, 12V can be used as a main power supply for core motherboard power supply, 5V is a standby power supply, only the 5V power supply works in standby state, and the 12V power supply is completely turned off, so that the national 1W standby power consumption requirement can be met.

The FPGA in the audio digital board realizes the processing of channel coding of signal input and output and the synchronization and distribution of signals. The DSP effect processor realizes the processing technology of multi-channel audio data separation, and the technology is different from all DSP effect processors on the market in processing modes and belongs to a unique processing technology framework. The MCU part realizes the parameter configuration of the FPG and the DSP and the system setting work, and simultaneously bears the function of communication with the host.

In one embodiment, the data stream acquisition and superposition of hardware are realized by adopting the FPGA in the audio digital board, so that different input data and output data can be matched more flexibly in practical use, and the interface is flexible and convenient. When in use, the system can be adapted to other systems with various format interfaces only by making tiny changes.

In one embodiment, the audio digital board can support both IIS data streams and TDMA encoded audio streams. When a multichannel system is encountered, the technology of one-line multichannel can be realized by expanding the data lines of the TDMA.

In one embodiment, the DSP in the audio digital board supports multiple signal independent conditioning. The effect of each input and output is different, and one set of system can fully exert the sound ray characteristics of each person.

In one embodiment, the audio digital board is added with an ultra-low delay network audio technology to realize multi-person chorus, antiphonal singing and rotary singing in a local area network. The singer can feel the fun of singing at the same time in different places.

In one embodiment, the bus-type interface mode is integrated, so that the design can be accessed to different platforms as long as the platform adopts the same interface mode, and thus, the platform transplantation related to high, medium and low ends is extremely simple and convenient.

In one embodiment, the design idea of digital-analog separation is adopted between the audio digital board and the audio analog board, so that the design of the power supply can be simplified. The audio frequency analog board can eliminate the interference of the digital system outside the analog system only by adopting an effective isolation means. The whole design is extremely simple, and the product is designed from the perspective of a module.

In one embodiment, the wireless microphone is designed using a standard external module. The interface adopts a common TYPE-C interface on the market. The interface is redefined according to the characteristics of the signal. The control connection of the wireless microphone is simple and convenient. Meanwhile, the shielding problem that the wireless module is placed in the case is solved, so that the wireless transmission distance and the anti-interference capability are greatly improved. The wireless module is added with industrial bus communication for realizing the control of the module. The multi-module combination and the sub-control can be realized, and the module is more flexible and concise to use.

In one embodiment, the wireless audio is designed using standard external modules. The interface adopts a common TYPE-C interface on the market. The interface is redefined according to the characteristics of the signal. And a 5.8G frequency band with stronger interference resistance is adopted. Meanwhile, the shielding problem that the wireless module is placed in the case is solved, so that the wireless transmission distance and the anti-interference capability are greatly improved. Meanwhile, the convenience of system installation is facilitated, and the situation that the whole decoration is damaged due to the fact that wiring is conducted for the volume in a room is avoided.

In one embodiment, the audio analog board adopts a unique power supply design, and positive and negative power supplies and other logic power supplies required by the system are directly generated from 12V. And the management of the power receiving system follows the power-on sequence of the system. The design of the part enables a unique design idea to well avoid the need of using an analog transformer, and the reduction degree and the softness degree of sound are not worse than those of a system using a ring transformer.

In one embodiment, three-up, three-down independent IIS signals can be used as input and output of a system sound source in the audio simulation board, and the independent microphone and the independent sound track can meet different application scene requirements. The flexibility and compatibility of the design of the system are greatly satisfied.

In one embodiment, a high-speed system isolation scheme is adopted in the audio simulation board, so that the design is simplified, and common ground noise introduced by the system due to multi-stage cascade is avoided. The debugging and the production become simple and easy.

Referring to fig. 3, fig. 3 is an internal schematic view of a television all-in-one machine provided in an embodiment of the present application

The application also provides a television all-in-one machine which comprises the karaoke circuit board and a display device electrically connected with the core mainboard, wherein the karaoke circuit board is provided according to any one of the embodiments.

The core mainboard integrates video output interfaces of various formats and video input interfaces of display devices, and equipment for connecting different video formats.

Referring to fig. 4, fig. 4 is a schematic diagram of a connection structure between a power supply and an audio digital board in a television all-in-one machine according to an embodiment of the present application.

Further, the television all-in-one machine also comprises a 12V direct-current power supply and a logic power supply.

The 12V direct current power supply supplies power to the audio processing device through the power interface, and particularly supplies power to the audio digital board.

The logic power supply utilizes three-up, three-down independent IIS signals to logically supply power to the audio digital board. And electrifying the karaoke circuit board and other parts according to a preset electrifying sequence, thereby avoiding using an analog transformer well and ensuring the reduction degree and softness degree of sound.

Referring to fig. 5, fig. 5 is an application environment diagram of a television all-in-one machine according to an embodiment of the present application.

In this embodiment, the television all-in-one machine is applied to the field of karaoke, and the television all-in-one machine is implemented according to terminal equipment such as: the interactive flat remote controller of the song requesting station or the game handle and the like send instructions, the audio input equipment is started, the sound of the user and the environment is obtained, and after the sound is processed by the karaoke circuit board of the television all-in-one machine, the sound is played through the sound effect playing equipment as follows: the earphone or the sound box outputs music. And simultaneously, outputting a corresponding picture on a screen of the television all-in-one machine or through equipment of a display device such as immersion glasses and the like according to the instruction.

More specifically, the television all-in-one machine comprises:

display device

The scheme comprises one or more display devices with the same or different appearance sizes, the display sizes are not limited, the resolution is not lower than 240P, the display proportion is not limited to 16:9, the colors are not distorted, and the images can be clearly displayed;

in one embodiment, the display device meets one of multiple installation modes such as landing, hanging on a wall, lifting and the like, performs instruction sending and data transmission with the system and the sound processing module through wire or wireless, and performs instruction sending and data transmission between the display device and the display device through wire or wireless;

in one embodiment, the display device may also be operated by one of a plurality of methods, such as touch, gesture recognition, and the like, and the protection device may be, but is not limited to, a glass material.

System and sound processing hardware module

In one embodiment, the system and sound processing hardware module are connected to the display device in an internal or external manner, including but not limited to wired and wireless.

In one embodiment, the system and sound processing hardware module includes, but is not limited to, a core motherboard, an audio digital board, an audio analog board, a circuit board module, and a board-to-board independent board-to-board data transmission by way of, but not limited to, a wire or a card socket.

In one embodiment, the system hardware modules include, but are not limited to, ports such as multi-path HDMI input/output, USB3.0 input, USB3.1 output, network connection, etc., and the modules exist independently to meet the requirements of fast replacement and iteration.

In one embodiment, the audio digital board module includes, but is not limited to, digital signal output, digital signal input, fiber input, infrared output, etc. the module is independent, and the requirement of quick replacement and iteration is met.

In one embodiment, the audio analog board module comprises but is not limited to audio output, audio output and other ports, and the module exists independently, so that the requirements of quick replacement and iteration are met.

Third, external device connection module and protocol

In one embodiment, the external devices connected in the scheme include, but are not limited to, console panels, remote controllers, on-demand devices, self-contained system devices, wireless audio data output devices, wireless audio data receiving devices, microphones, audio source extension devices, cameras, game pads, and the like.

In one embodiment, the console panel is connected with the device in an internal or external mode, the connection mode includes but is not limited to a wired mode and a wireless mode, and the control content includes but is not limited to functions of standby, power-off, mute, song requesting, login, recording, raising and lowering, volume adjustment, original vocal accompaniment switching, returning, song cutting, channel switching, menu calling and the like.

In one embodiment, the connection mode of the remote controller and the equipment comprises but is not limited to infrared, Bluetooth and wifi protocols, and the remote controller controls the content comprising but not limited to standby, power-off, mute, song-order, login, recording, rising and falling, volume adjustment, original vocal accompaniment switching, return, song-cutting, channel switching, menu calling and the like;

in one embodiment, the jukebox device is connected with the equipment in a wired or wireless mode, and is operated by a touch screen, a remote controller or keys, the size of the touch screen is not limited, and the jukebox device is provided with a storage battery and can be used alternatively by alternating current and direct current.

In one embodiment, the audio and video device with the system is not limited to any brand and system, meets the audio and video output function, and can be connected with the device in a wired mode or a wired mode.

In one embodiment, the wireless audio data output device is connected with the device in an internal or external manner, which satisfies wireless data transmission between the device and the audio source external expansion device, and the connection manner includes, but is not limited to, a 5.8G proprietary protocol, a 2.4G protocol, a bluetooth protocol, and the like.

In one embodiment, the wireless audio data receiving device is connected with the device in an internal or external manner, which satisfies wireless data transmission between the device and the audio source output terminal, and the connection manner includes, but is not limited to, a 5.8G private protocol, a 2.4G protocol, a bluetooth protocol, a U-segment protocol, and the like.

In one embodiment, the microphone is connected to the device in a wired or wired manner, and the wireless connection includes, but is not limited to, 5.8G proprietary protocol, 2.4G protocol, bluetooth protocol, U-segment protocol, and the like.

In one embodiment, the audio source external device includes, but is not limited to, a speaker, a headphone and audio device, and is connected with the device in a wired or wired manner, and the wireless connection manner includes, but is not limited to, a 5.8G proprietary protocol, a 2.4G protocol, a bluetooth protocol, a U-segment protocol, and the like.

In one embodiment, the camera is connected with the device in a built-in or external mode, functions such as shooting, recording, action judgment and the like are met but not limited, and connection transmission modes include but are not limited to wired and wireless modes.

In one embodiment, the gamepad is connected to the device in a wired or wireless manner, including but not limited to 2.4G proprietary protocols, bluetooth protocols, and the like.

Four, on-demand system

In one embodiment, the on-demand system meets, but is not limited to, on-demand audio and video, game, social contact, information acquisition and other functions, and not only meets the singing requirements of users, but also meets various entertainment requirements of the users.

In one embodiment, the on-demand system meets the requirement that a plurality of users perform synchronous interaction in a wide area network and a local area network, and the number of the users is more than or equal to 2.

The terminal equipment and/or the sound source external expansion equipment with audio and video output;

the terminal equipment is connected with the wireless connection device, and the connection mode between the terminal equipment and the wireless connection device comprises any one of connection based on a 5.8G private protocol, connection based on a 2.4G protocol, connection based on a Bluetooth protocol and connection based on a U-segment protocol;

the sound source external expansion equipment is connected with the wireless connecting device, and the connection mode between the sound source external expansion equipment and the wireless connecting device comprises any one of connection based on a 5.8G private protocol, connection based on a 2.4G protocol, connection based on a Bluetooth protocol and connection based on a U-segment protocol; the sound source external expansion equipment comprises a sound box and/or earphone audio equipment.

In one embodiment, the television all-in-one machine further includes:

the camera is connected with the wireless connection device and used for shooting, recording or judging actions.

In one embodiment, the television all-in-one machine further includes:

the game paddle is connected with the wireless connection device, and the connection mode between the game paddle and the wireless connection device comprises connection based on a 2.4G private protocol or connection based on a Bluetooth protocol.

In one embodiment, the wireless connection device is further used for accessing the internet or a local area network to obtain data of on-demand content, game data, social interaction data or consultation information.

In one embodiment, the sound data processing device comprises a core mainboard circuit, an audio digital circuit and an audio analog circuit;

the audio digital circuit and the audio analog circuit are respectively connected with the core mainboard circuit, the audio digital circuit and the audio analog circuit are also respectively connected with the wireless connection device, and the core mainboard circuit is connected with the display device;

the connection among the audio digital circuit, the audio analog circuit and the core mainboard circuit comprises wire connection or card seat connection.

In one embodiment, the audio digital circuit is provided with at least one of an HDMI interface, a USB interface and a network connection interface;

and the audio frequency analog circuit is provided with an audio frequency output interface which is used for being connected with sound output equipment.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. The audio processing device is characterized by comprising a core mainboard, an audio digital board and an audio analog circuit which are sequentially connected;

the audio digital board comprises an audio bus module, an FPGA chip and a delay network audio circuit; the delay network audio circuit is electrically connected with the FPGA chip and used for carrying out interaction of audio data;

2. The audio processing apparatus of claim 1, wherein the delay network audio circuit comprises: the system comprises a switch module and an ultra-low delay network audio module which are connected with each other;

3. The audio processing device of claim 1, wherein the audio digital board further comprises an audio output/input interface;

4. The audio processing device of claim 1, wherein the audio digital board further comprises: a DSP processor;

5. The audio processing device of claim 4, wherein the audio digital board further comprises an analog board audio interface connected to the FPGA chip;

6. The audio processing device of claim 5, wherein the audio digital board further comprises: controlling the MCU;

7. A karaoke circuit board, comprising: a core motherboard, the audio processing apparatus of any of claims 1 to 6; the audio processing device is connected with the display device through a video interface, and the audio analog circuit is connected with the microphone and the effect playing equipment.

8. An all-in-one television machine, comprising: the karaoke circuit board of claim 7, and a display device electrically connected to said core motherboard.

9. The television unit as claimed in claim 8, further comprising: 12V direct current power supply and logic power supply;

10. The television unit as claimed in claim 9, further comprising: an external device connection module;