Audio-video synchronous processing system, signal processing method and signal processing device

Abstract

The invention discloses an audio and video synchronous processing system, a signal processing method and a signal processing device. The audio and video synchronous processing system comprises a wireless transceiving module wirelessly connected with intelligent equipment, a signal processing module connected with the wireless transceiving module and a sound effect processing module, wherein the signal processing module outputs signals through a first signal output end connected with the signal processing module, so that the function that equipment connected with the first signal output end plays videos and audios at the same time is achieved, and the signal processing module outputs signals through a second signal output end connected with the signal processing module. According to the audio and video synchronous processing system, audio and video signals on intelligent equipment can be directly output or independently output after being separated, so that the audio playing function of the equipment connected with the second signal output end is realized, and the first signal output end and the second signal output end simultaneously or alternatively carry out signal output of the signal processing module. And the means for people to use the audio and video data in the intelligent equipment are richer.

Description

Technical Field

[0001] The present invention relates to the technical field of audio-visual signal processing, and specifically to an audio-visual synchronization processing system, a signal processing method, and a signal processing device. Background Art

[0002] In modern daily life, people use audio and video data quite frequently. For example, when sharing music videos using smart devices, or during activities such as indoor KTV or outdoor performances, the use of audio and video data is involved. However, as people's awareness of protecting their intellectual achievements gradually strengthens, the use of some audio and video data has gradually become restricted.

[0003] Some specific audio and video data can only be used in ways such as in KTV or using smart devices in certain specific software. The use of these audio and video data can only be carried out under permission, and the use methods of these specific audio and video data have been limited. If people want to use them independently, the operation difficulty is relatively high, and more software and hardware for converting audio and video data are required.

[0004] In addition, with the development of technology, the types of audio and video data have also been increasing continuously, and the form of transmitting both in the same signal has been realized. For example, HDMI signals can directly output audio and video data for playback on devices with HDMI signals. When using HDMI signals, audio signals and video signals can also be separated from them to meet the data transmission requirements of different types of audio peripherals and video peripherals. However, in real life, without the cooperation of professional audio and video data operators, software, and hardware for converting audio and video data, it is also difficult for people to realize the conversion and application of audio and video data, and the degree of realizability of audio and video data for people's independent applications in real life is not high. Summary of the Invention

[0005] In view of the technical deficiencies in the background art, the invention proposes an audio-visual synchronization processing system, a signal processing method, and a signal processing device, which solve the above technical problems and meet the actual needs. The specific technical solutions are as follows: The present invention discloses an audio-visual synchronization processing system, which includes: A wireless transceiver module, wirelessly connected to a smart device to send and receive audio and video signals; A signal processing module, connected to the wireless transceiver module to receive audio and video signals; A sound effect processing module, used to process audio signals; Among them, the signal processing module outputs signals through its connected signal output terminal 1 to enable the device connected to the signal output terminal 1 to play video and audio simultaneously. The signal processing module outputs signals through its connected signal output terminal 2 to enable the device connected to the signal output terminal 2 to play audio. The signal output terminal 1 and the signal output terminal 2 output the signals of the signal processing module simultaneously or alternatively. The receiving port 1 of the sound effect processing module is connected to the signal output terminal 2, and the receiving port 2 of the sound effect processing module is connected to the audio collection device through wired or wireless means. The sound effect processing module is provided with at least two audio output ports.

[0006] As a further embodiment of the present invention, the signal processing module includes a processor and a memory. The intelligent device sends audio and video signals to the wireless transceiver module in a wireless transmission form. The audio and video signals received by the processor are DHMI signals. The memory is connected to the processor to store the data transmitted by the processor. The signal form output by the output terminal 1 is a DHMI signal. The device connected to the signal output terminal 1 is a video playback device 1 with a DHMI signal input interface. The processor outputs a digital audio signal or a digital audio signal to the signal output terminal 2.

[0007] As a further embodiment of the present invention, the wireless transceiver module receives the instruction signals sent by the intelligent device in a wireless reception form. The processor is also connected to a controller, and the processor receives the control instructions transmitted by the wireless transceiver module or the controller.

[0008] As a further embodiment of the present invention, the processor outputs digital audio data to the signal output terminal 2. The sound effect processing module connected to the signal output terminal 2 processes the digital audio data received by the signal output terminal 2 and outputs a digital audio signal through one of the audio output ports. The sound effect processing module is a DSP signal processor, and the controller is connected to the sound effect processing module to transmit control instructions.

[0009] As a further embodiment of the present invention, one of the audio output ports is the first audio output port after the DSP signal processor performs anechoic processing, and the other audio output port is the second audio output port for 3.5mm Audio analog stereo audio output.

[0010] As a further embodiment of the present invention, there are at least two signal output terminals 2. The processor outputs digital video signals to the signal output terminal 2 not connected to the sound effect processing module. The video playback device 2 connected to the signal output terminal 2 receives and plays the digital video signals.

[0011] The present invention also discloses a signal processing method, which is used for the above audio-video synchronization processing system to process signals. The method includes the following steps: Step 1, the wireless transceiver module receives the audio-video signals sent by the intelligent device in a wireless transmission manner, and transmits the audio-video signals to the signal processing module. After the processor in the signal processing module analyzes the audio-video data, it transmits the audio-video data to the memory for storage; Step 2, after an instruction signal is formed by the intelligent device or the controller, it is received by the processor. The processor reads a segment of audio-video data stored in the memory according to the instruction signal, and processes the audio-video data and transmits the signal to signal output terminal 1 and / or signal output terminal 2; Step 3, if the processor outputs a signal to signal output terminal 1, the signal type output by the processor to signal output terminal 1 is an HDMI signal; if the processor outputs a signal to signal output terminal 2, the processor separates the video data, separates the digital audio signal or the digital video signal and transmits it to signal output terminal 2; Step 4, if signal output terminal 2 is connected to the audio effect processing module, signal output terminal 2 outputs a digital audio signal to the audio effect processing module; if signal output terminal 2 is connected to video playback device 2, signal output terminal 2 outputs a digital video signal to video playback device 2; Step 5, if the audio effect processing module receives the digital audio signal transmitted by the processor or the digital audio signal transmitted by the audio collection device, the audio effect processing module will, according to the control instruction transmitted by the controller, output the audio signal through the first audio output port after performing the original sound cancellation processing on the digital audio signal, or output the digital audio signal through the second audio output port.

[0012] As a further implementation manner of the present invention, in Step 3, when the processor outputs a signal to signal output terminal 1 or signal output terminal 2, it simultaneously performs signal feedback to the controller or the wireless transceiver module.

[0013] As a further implementation manner of the present invention, in Step 5, after the controller sends an instruction to the audio effect processing module, the audio effect processing module performs signal feedback to the controller.

[0014] The present invention also discloses a signal processing device, which uses the above signal processing method to process signals. The signal processing device includes a housing, a main board, a signal processing module, a memory, a sound effect processing module, and a controller. The signal processing module, the memory, and the sound effect processing module are all arranged on the main board. The edges of the housing are respectively provided with a controller, a wireless transceiver module, a first signal output terminal, a video output port, a first audio output port, and a second audio output port. The signal processing module has at least two second signal output terminals, which are respectively used for video signal output and audio signal output. One of the second signal output terminals for audio signal output is connected to the audio signal receiving end of the sound effect processing module, and one of the second signal output terminals for audio signal output is connected to the video output port.

[0015] The beneficial effects of the present invention are as follows: The audio and video data in the intelligent device are directly output at the first signal output terminal and the audio is output at the audio output port at the same time. It can also be directly output at the first signal output terminal alone, or the audio signal can be output at the second signal output terminal alone. There are multiple signal output methods that can select either the first signal output terminal or the second signal output terminal or both according to different scenario requirements, so as to meet the usage requirements of the audio and video data in the intelligent device in different scenarios. The application of the audio and video data in the implementation is further broadened, breaking the limitations of the use of audio and video data; People can transmit control signals to the signal processing module and the sound effect processing module through the intelligent device or the controller, and output the audio and video data of the intelligent device in different forms, so as to realize the data used when the audio and video data are converted into external devices of different data types; It includes different selection methods for converting audio and video data for people to choose. People can select the conversion method of the data type according to the need for the data type in the actual use process, so as to be able to output the corresponding data type to the external device for playback. The method is diverse and the operation is convenient. The multiple signal output methods after processing the audio and video data can be applied in the specific signal processing device, and the structure is simple and the operation is convenient, which can meet the requirements for audio playback and video playback functions in different scenarios. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the first audio and video synchronization processing system.

[0017] Figure 2 It is a schematic structural diagram of the first operation mode of the first audio and video synchronization processing system.

[0018] Figure 3 It is a schematic structural diagram of the first operation mode of the second audio and video synchronization processing system.

[0019] Figure 4Schematic diagram of the first operation mode of the third audio - video synchronization processing system.

[0020] Figure 5 Schematic diagram of the working principle of the signal processing module in the first audio - video synchronization processing system.

[0021] Figure 6 Schematic diagram of the control principle of the signal processing module in the first audio - video synchronization processing system.

[0022] Figure 7 Schematic diagram of the working principle of the sound effect processing module in the first audio - video synchronization processing system.

[0023] Figure 8 Schematic diagram when the sound effect processing module is connected to the first audio output port and the second audio output port.

[0024] Figure 9 Schematic diagram of the second audio - video synchronization processing system.

[0025] Figure 10 Schematic diagram of the working principle of the signal processing module in the second audio - video synchronization processing system.

[0026] Figure 11 Schematic diagram of the principle of the first signal processing method.

[0027] Figure 12 Schematic diagram of the principle of the second signal processing method.

[0028] Figure 13 Schematic diagram of the principle of the third signal processing method.

[0029] Figure 14 Schematic diagram of the principle of the fourth signal processing method.

[0030] Figure 15 Schematic diagram of the external structure of the signal processing device Figure 1 。

[0031] Figure 16 Schematic diagram of the external structure of the signal processing device Figure 2 。

[0032] Figure 17 Schematic diagram of the internal structure of the signal processing device.

[0033] In the figure, 1. Outer shell; 2. Main board; 3. Signal processing module; 4. Memory; 5. Sound effect processing module; 6. Controller; 7. Wireless transceiver module; 8. First signal output terminal; 9. Video output port; 10. First audio output port; 11. Second audio output port. Detailed implementation mode

[0034] The present invention discloses a video and audio synchronization processing system, as Figure 1 shown. The video and audio synchronization processing system includes: A wireless transceiver module, wirelessly connected to a smart device to send and receive audio and video signals; A signal processing module, connected to the wireless transceiver module to receive audio and video signals; A sound effect processing module, used to process audio signals; Wherein, the signal processing module outputs signals through its connected signal output terminal 1 to enable the device connected to the signal output terminal 1 to play video and audio simultaneously. The signal processing module outputs signals through its connected signal output terminal 2 to enable the device connected to the signal output terminal 2 to play audio. The signal output terminal 1 and the signal output terminal 2 output signals of the signal processing module simultaneously or alternatively. The receiving port 1 of the sound effect processing module is connected to the signal output terminal 2, and the receiving port 2 of the sound effect processing module is connected to an audio collection device through wired or wireless means. The sound effect processing module is provided with at least two audio output ports.

[0035] It should be noted that: as Figure 2 shown, in the first operation mode of the video and audio synchronization processing system, after the smart device establishes a wireless connection with the wireless transceiver module, the receiving port 2 is connected to the sound effect processing module, and the signal output terminal 1 is connected to the device, the audio and video data in the smart device is transmitted to the wireless transceiver module in a wireless transmission form. Then, the wireless transceiver module transmits the audio and video signals to the signal processing module. The signal processing module analyzes and stores the audio and video signals, and then transmits the audio and video data to the signal output terminal 1. The device connected to the signal output terminal 1 plays video or audio simultaneously; in addition, the signal processing module separates the audio and video data and transmits the audio data to the signal output terminal 2. The signal output terminal 2 transmits the audio data to the receiving port 1, enabling the sound effect processing module to obtain the audio data. The sound effect processing module processes the audio data and outputs the audio signal through the audio output port, enabling the audio playback device connected to the audio output port to play audio; this video and audio synchronization processing system can simultaneously meet the functions of playing video and audio of the audio and video data on the smart device on an external device, and the audio playback device connected to the audio output port can achieve the function of playing audio.

[0036] As Figure 3As shown, the difference between the second operating mode of the audio-video synchronization processing system and the first operating mode of the audio-video synchronization processing system is that the second signal output terminal does not output signals, and only the first signal output terminal outputs signals. Therefore, after the signal processing module analyzes and stores the audio-video signals, it then transmits the audio-video data to the first signal output terminal, and the device connected to the first signal output terminal plays the video or plays the audio simultaneously; this type of audio-video synchronization processing system can simultaneously meet the functions of playing video and playing audio for the audio-video data on the smart device on the external device, but it is only applicable to external devices that can receive audio-video signals at one receiving end.

[0037] As Figure 4 shown, the difference between the third operating mode of the audio-video synchronization processing system and the previous two system operating modes is that the first signal output terminal does not output signals, and only the second signal output terminal outputs signals. Therefore, the signal processing module separates the audio-video data and transmits the audio data to the second signal output terminal, and the second signal output terminal transmits the audio data to the first receiving port, enabling the audio effect processing module to obtain the audio data. The audio effect processing module processes the audio data and outputs the audio signal through the audio output port, enabling the audio playback device connected to the audio output port to play the audio; this type of audio-video synchronization processing system can simultaneously meet the function of playing audio for the audio-video data on the smart device on the external device connected to the audio output port.

[0038] As Figure 1 and Figure 4 Combined with the above, in the first operating mode of the audio-video synchronization processing system and the third operating mode of the audio-video synchronization processing system, if the second receiving port is connected to an audio collection device through wired or wireless means, the audio data received when the audio collection device is working will be transmitted to the audio effect processing module. The audio effect processing module processes the audio data and outputs the audio signal through the audio output port, enabling the audio playback device connected to the audio output port to play the audio, which is suitable for use in occasions where audio data is mixed and played.

[0039] The audio - video synchronization processing system can directly output the audio - video data in the smart device at Output Terminal 1 and output audio at the audio output port, or directly output only at Output Terminal 1, or output the audio signal only at Output Terminal 2, providing multiple signal output methods that can select either both Output Terminal 1 and Output Terminal 2 or one of them according to different scenario requirements, so as to meet the usage requirements of the audio - video data in the smart device in different scenarios. For example, when singing KTV indoors, the audio - video signal can be directly output to an external device at Output Terminal 1, and the external device can play the audio - video data simultaneously, enabling the external device to realize the function of playing audio and video simultaneously to meet the needs of singing KTV indoors. When performing an outdoor concert, the audio - video signal can also be directly output to an external device at Output Terminal 1, such as a large - sized screen with audio - video interfaces, to enable the external device to play the audio - video data simultaneously. In addition, when performing an outdoor concert, if there is no need to use a video playback device to play video data, the audio signal can also be output to an external device at Output Terminal 2 to enable the external device to play the audio data, further broadening the application of audio - video data in implementation and breaking the limitations of the use of audio - video data.

[0040] It should be further noted that, as Figure 5 shown, the signal processing module includes a processor and a memory. The smart device sends the audio - video signal to the wireless transceiver module in a wireless transmission form. The audio - video signal received by the processor is a DHMI signal. The memory is connected to the processor to store the data transmitted by the processor. The signal form output by Output Terminal 1 is a DHMI signal. The device connected to Output Terminal 1 is a video playback device with a DHMI signal input interface, and the processor outputs a digital audio signal to Output Terminal 2.

[0041] After the intelligent device establishes a wireless connection with the wireless transceiver module, the audio and video data in the intelligent device is transmitted to the wireless transceiver module in the form of wireless transmission. Then, the wireless transceiver module transmits the audio and video signal to the signal processing module. The audio and video signal transmitted by the wireless transceiver module is a DHMI signal. After the signal processing module analyzes the DHMI signal, it is transmitted to the memory for storage, so as to facilitate retrieval when needed in the future. When data needs to be used, the data is retrieved from the memory and transmitted to the first signal output terminal. The device connected to the first signal output terminal is a video playback device with a DHMI signal input interface, so as to realize the simultaneous video or audio playback of the device connected to the device connected to the first signal output terminal. When outputting a signal to the second signal output terminal, the DHMI signal is separated and processed by the processor, and the audio data in the DHMI signal is separated and transmitted to the second signal output terminal, so as to realize the output of the audio signal at the second signal output terminal.

[0042] Specifically, as Figure 6 shown, the wireless transceiver module receives the command signal sent by the intelligent device in the form of wireless reception. The processor is also connected to a controller, and the processor receives the control command transmitted by the wireless transceiver module or the controller.

[0043] Among them, the control command for the processor to control the first signal output terminal and / or the second signal output terminal to output a signal can be generated by the controller or on the intelligent device and finally transmitted to the processor, so as to realize the signal output of the processor controlling the first signal output terminal and / or the second signal output terminal.

[0044] More specifically, as Figure 7 shown, the processor outputs digital audio data to the second signal output terminal. The sound effect processing module connected to the second signal output terminal processes the digital audio data received by the second signal output terminal and outputs the digital audio signal through one of the audio output ports. The sound effect processing module is a DSP signal processor, and the controller is connected to the sound effect processing module to transmit control commands.

[0045] Among them, the controller transmits a control command to the DSP signal processor, which can control which audio output port the digital audio signal output by the DSP signal processor goes to, so as to realize the playback of audio data in different forms.

[0046] Furthermore, as Figure 8 shown, one of the audio output ports is the first audio output port after the DSP signal processor performs de-voicing processing, and the other audio output port is the second audio output port for 3.5mm Audio analog stereo audio output.

[0047] Among them, when the audio data is output through the first audio output port, the DSP signal processor will eliminate the part with human voices in the audio data, so that the audio playback device connected to the first audio output port can play the accompaniment music; when the audio data is output through the second audio output port, the DSP signal processor outputs the audio data to the audio playback device at the second audio output port in the form of simulated stereo sound, so as to provide different audio playback effects for people to choose from.

[0048] Specifically, as Figure 9 and Figure 10 Combined as shown, there are at least two signal output terminals two, the processor outputs a digital video signal to the signal output terminal two connected to the non-audio effect processing module, and the video playback device two connected to the signal output terminal two receives and plays the digital video signal.

[0049] Among them, after connecting the video playback device two to the signal output terminal two connected to the non-audio effect processing module, the processor separates and processes the DHMI signal, separates the video data in the DHMI signal and transmits it to the signal output terminal two, so as to realize the output of the video signal by the signal output terminal two, input the video data to the video playback device two and play the video, further expanding the function of the audio-visual synchronization processing system.

[0050] The present invention also discloses a signal processing method, as Figures 11 to 14 Combined as shown, this signal processing method is used for signal processing of the above-mentioned audio-visual synchronization processing system, and this method includes the following steps: Step 1, the wireless transceiver module receives the audio-visual signal sent by the intelligent device in the form of wireless transmission, and transmits the audio-visual signal to the signal processing module. After the processor in the signal processing module analyzes the audio-visual data, it transmits the audio-visual data to the memory for storage; Step 2, after forming an instruction signal through the intelligent device or the controller, it will be received by the processor. The processor reads a segment of audio-visual data stored in the memory according to the instruction signal, and processes the audio-visual data and transmits the signal to the signal output terminal one and / or the signal output terminal two; Step 3, if the processor outputs a signal to the signal output terminal one, the signal type output by the processor to the signal output terminal one is an HDMI signal; if the processor outputs a signal to the signal output terminal two, the processor separates and processes the video data, separates the digital audio signal or the digital video signal and transmits it to the signal output terminal two; Step 4, if the second signal output terminal is connected to the audio processing module, the second signal output terminal outputs a digital audio signal to the audio processing module; if the second signal output terminal is connected to the second video playback device, the second signal output terminal outputs a digital video signal to the second video playback device; Step 5, if the audio processing module receives the digital audio signal transmitted by the processor or the digital audio signal transmitted by the audio collection device, the audio processing module will, according to the control instruction transmitted by the controller, output the audio signal through the first audio output port after performing de-voicing processing on the digital audio signal, or output the digital audio signal through the second audio output port.

[0051] It should be noted that: there are various audio-visual data conversion methods in this signal processing method. The first one: sending an instruction signal to the processor through the smart device or the controller, and directly outputting the audio-visual data from the first signal output terminal through controlling the processor, and at the same time outputting the audio data from the second signal output terminal; the second one: the processor only directly outputs the audio-visual data from the first signal output terminal without controlling the second signal output terminal to output the signal; the third one: the processor only outputs the signal from the second signal output terminal without outputting the signal from the first signal output terminal; the fourth one: when the processor only outputs the signal from the second signal output terminal, it can also output the video data; in addition, when the second signal output terminal outputs the signal to the audio processing module, after the audio processing module processes the audio data, it can also transmit a control instruction to the audio processing module through the controller to select the audio effect output form, so as to transmit the audio to the external audio playback device through different audio effect output forms; thus, it can be seen that the audio-visual data conversion method of this signal processing method is diverse.

[0052] In this signal processing method, people can transmit a control signal to the signal processing module and the audio processing module through the smart device or the controller, and output the audio-visual data of the smart device in different forms, so as to realize the conversion of the audio-visual data into the data used when the external device of different data types works; in this signal processing method, each step contains different options for audio-visual data conversion methods for people to choose. People can choose the conversion method of the data type according to the need for the data type in the actual use process, so as to be able to output the corresponding data type to the external device for playback, with diverse methods and convenient operations.

[0053] It should be further noted that, as Figures 11 to 14 Combined as shown, in Step 3, when the processor outputs a signal to the first signal output terminal or the second signal output terminal, it simultaneously gives a signal feedback to the controller or the wireless transceiver module.

[0054] In step three, the processor can be controlled in two ways: wireless transmission and controller transmission of the intelligent device. Both can transmit control signals to the processor, and the control signal transmission methods are different, which can be selected according to the user's needs during operation, enabling the user to control the audio-visual synchronization processing system more freely and meeting the requirements for controlling the audio-visual synchronization processing system in different usage scenarios. Moreover, after a certain control instruction is transmitted from the controller or intelligent device to the processor, the processor will give a signal feedback to the controller and the intelligent device according to the transmitted control instruction. A prompt indicating that the processor is executing a certain control instruction action will be displayed on the controller and the intelligent device according to the signal, and the user can understand the working state of the current audio-visual synchronization processing system based on this prompt.

[0055] It should be further noted that, as Figure 11 and Figure 13 shown in combination, in step five, after the controller sends an instruction to the sound effect processing module, the sound effect processing module gives a signal feedback to the controller.

[0056] Similarly, in step five, after a certain control instruction is transmitted from the controller to the sound effect processing module, the sound effect processing module will give a signal feedback to the controller according to the control instruction transmitted by the controller. A prompt indicating that the processor is executing a certain control instruction action will be displayed on the controller according to the signal, and the user can understand the working state of the current audio-visual synchronization processing system based on this prompt.

[0057] The present invention also discloses a signal processing device. As Figures 15 to 17 shown in combination, this signal processing device uses the above signal processing method for signal processing. The signal processing device includes a housing 1, a main board 2, a signal processing module 3, a memory 4, a sound effect processing module 5, and a controller 6. The signal processing module 3, the memory 4, and the sound effect processing module 5 are all arranged on the main board 2. The controller 6, a wireless transceiver module 7, a first signal output terminal 8, a video output port 9, a first audio output port 10, and a second audio output port 11 are respectively arranged on the edge of the housing 1. The signal processing module 3 has at least two second signal output terminals, which are respectively used for video signal output and audio signal output. One of the second signal output terminals for audio signal output is connected to the audio signal receiving end of the sound effect processing module 5, and one of the second signal output terminals for audio signal output is connected to the video output port 9.

[0058] In the actual application process, the signal processing device can be provided with a plurality of connection ports on the housing that output different data types to meet the connection of external devices of different data types, so that various signal output methods after the audio and video synchronization processing system processes the audio and video data of the intelligent device through the signal processing method can be applied in the signal processing device, and the signal processing device has a simple structure and is convenient to operate, and can meet the requirements for audio playback and video playback functions in different scenarios.

[0059] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A video and audio synchronization processing system, characterized in that, The audio-video synchronization processing system includes: A wireless transceiver module, which is wirelessly connected to a smart device to send and receive audio-video signals; A signal processing module, which is connected to the wireless transceiver module to receive audio-video signals; An audio effect processing module, which is used to process audio signals; Among them, the signal processing module outputs signals through its connected signal output terminal 1 to enable the device connected to the signal output terminal 1 to play video and audio simultaneously, and the signal processing module outputs signals through its connected signal output terminal 2 to enable the device connected to the signal output terminal 2 to play audio. The signal output terminal 1 and the signal output terminal 2 output signals of the signal processing module simultaneously or alternatively. The first receiving port of the audio effect processing module is connected to the signal output terminal 2, and the second receiving port of the audio effect processing module is connected to an audio collection device through wired or wireless means. The audio effect processing module has at least two audio output ports.

2. The audio - video synchronization processing system according to claim 1, wherein, The signal processing module includes a processor and a memory. The smart device sends audio-video signals to the wireless transceiver module in a wireless transmission form. The audio-video signals received by the processor are DHMI signals. The memory is connected to the processor to store the data transmitted by the processor. The signal form output by the output terminal 1 is a DHMI signal. The device connected to the signal output terminal 1 is a video playback device 1 with a DHMI signal input interface. The processor outputs a digital audio signal or a digital audio signal to the signal output terminal 2.

3. The audio-visual synchronization processing system according to claim 2, characterized in that, The wireless transceiver module receives the instruction signals sent by the smart device in a wireless reception form. The processor is also connected to a controller, and the processor receives the control instructions transmitted by the wireless transceiver module or the controller.

4. A video and audio synchronization processing system according to claim 3, characterized in that, The processor outputs digital audio data to the signal output terminal 2. The audio effect processing module connected to the signal output terminal 2 processes the digital audio data received by the signal output terminal 2 and outputs a digital audio signal through one of the audio output ports. The audio effect processing module is a DSP signal processor, and the controller is connected to the audio effect processing module to transmit control instructions.

5. An audio-video synchronization processing system according to claim 4, characterized in that, One of the audio output ports is the first audio output port after the DSP signal processor performs de-voicing processing, and the other audio output port is the second audio output port for 3.5mm Audio analog stereo audio output.

6. The audio-visual synchronization processing system according to claim 3, wherein There are at least two signal output terminals 2. The processor outputs digital video signals to the signal output terminals 2 not connected to the audio effect processing module. The video playback device 2 connected to the signal output terminal 2 receives and plays the digital video signals.

7. A signal processing method, which is used for signal processing in the audio-visual synchronization processing system according to any one of claims 1 to 6, and is characterized in that, The method includes the following steps: Step 1, the wireless transceiver module receives the audio-video signals sent by the smart device in a wireless transmission form and transmits the audio-video signals to the signal processing module. After the processor in the signal processing module analyzes the audio-video data, it transmits the audio-video data to the memory for storage; In step two, after the instruction signal is formed by the intelligent device or controller, it will be received by the processor. The processor reads a segment of audio-visual data stored in the memory according to the instruction signal, and processes the audio-visual data to transmit signals to signal output terminal one and / or signal output terminal two. In step three, if the processor outputs a signal to signal output terminal one, the type of signal output by the processor to signal output terminal one is an HDMI signal; if the processor outputs a signal to signal output terminal two, the processor separates the video data, separates the digital audio signal or digital video signal and transmits it to signal output terminal two. In step four, if signal output terminal two is connected to the sound effect processing module, signal output terminal two outputs the digital audio signal to the sound effect processing module; if signal output terminal two is connected to video playback device two, signal output terminal two outputs the digital video signal to video playback device two. In step five, if the sound effect processing module receives the digital audio signal transmitted by the processor or the digital audio signal transmitted by the audio collection device, the sound effect processing module will, according to the control instruction transmitted by the controller, output the audio signal through the first audio output port after performing the original sound cancellation processing on the digital audio signal, or output the digital audio signal through the second audio output port.

8. A signal processing method according to claim 7, characterized in that, In step three, when the processor outputs a signal to signal output terminal one or signal output terminal two, it simultaneously feeds back the signal to the controller or the wireless transceiver module.

9. A signal processing method according to claim 7, characterized in that In step five, after the controller sends an instruction to the sound effect processing module, the sound effect processing module feeds back the signal to the controller.

10. A signal processing device that performs signal processing using the signal processing method according to any one of claims 7 to 9, characterized in that, The signal processing device includes a housing, a main board, a signal processing module, a memory, a sound effect processing module and a controller. The signal processing module, the memory and the sound effect processing module are all arranged on the main board. The edges of the housing are respectively provided with a controller, a wireless transceiver module, signal output terminal one, a video output port, a first audio output port and a second audio output port. The signal processing module has at least two signal output terminals two which are respectively used for video signal output and audio signal output. One of the signal output terminals two for audio signal output is connected to the audio signal receiving end of the sound effect processing module, and one of the signal output terminals two for audio signal output is connected to the video output port.

Images