Method for transmitting digital audio and power signals, system and device and storage medium
A power signal and digital audio technology, applied in the field of multimedia communication, can solve the problems of high cost, complicated and cumbersome long-distance transmission of digital audio signals, etc.
Active Publication Date: 2021-11-12
VALUEHD CORP
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Problems solved by technology
[0004] The main purpose of the present invention is to provide a method for transmitting digital audio and power signals, aiming to solve the technical problems of complicated and costly long-distance transmission of digital audio signals in the prior art
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[0045] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0046] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0047] Such as figure 1 as shown, figure 1 It is a schematic diagram of the terminal structure of the hardware operating environment involved in the solution of the embodiment of the present invention.
[0048] The operating device in the embodiment of the present invention may be a PC, or a mobile terminal device with a display function such as a smart phone, a tablet computer, an e-book reader, or a portable computer.
[0049] Such as figure 1As shown, the running device may include: a processor 1001 , such as a CPU, a network interface 1004 , a user interface 1003 , a memory 1005 ,...
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The invention discloses a method for transmitting digital audio and power signals, a system and a device and a storage medium, and the method comprises the steps: converting a level signal of a digital audio interface into a differential signal, and carrying out the DC blocking of the differential signal through a capacitor, thereby obtaining a blocked differential signal; and accessing the electric correlation signal subjected to low-pass filtering to the blocking differential signal to obtain a comprehensive differential signal, and sending the comprehensive differential signal to a signal receiving end; after the comprehensive differential signal is received, splitting the comprehensive differential signal to obtain an electric correlation signal and a blocking differential signal; sending the electric correlation signal subjected to low-pass filtering to a power supply receiving device, and completing transmission of a power supply signal; recovering the blocking differential signal after being blocked by a capacitor to obtain a differential signal, and converting the differential signal into a level signal; and performing time sequence adjustment on the level signal according to the standard requirement of the digital audio interface to complete the transmission of the digital audio signal. Therefore, digital audio and power signals can be simply, reliably, efficiently and remotely transmitted at low cost.
Description
technical field [0001] The invention relates to the field of multimedia communication, in particular to a method, system, device and computer-readable storage medium for transmitting digital audio and power signals. Background technique [0002] In conference systems, sound reinforcement systems, and recording and broadcasting systems, microphones are generally used to pick up sound, but the sound pickup distance of a single microphone is often not far enough, and multiple microphones are required to be cascaded. Commonly used cascading methods are: 1. Wireless cascading, the audio uses 2.4G cascading, each microphone requires a relatively expensive wireless module, and the delay of the wireless module is relatively large. 2. USB cascading, the audio is cascaded through the USB port, and the clock synchronization is troublesome. 3. Analog cascading, audio cascading through analog lines, there are many cables and the cost is relatively high. 4. Ethernet cascading, the micro...
Claims
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Login to View More IPC IPC(8): H04L25/06H04L25/02
CPCH04L25/06H04L25/0272
Inventor 陈涛欧阳典勇史立庆
Owner VALUEHD CORP