Network transmission of audio signal and matrix switching method

An audio signal and network transmission technology, applied in the transmission system, digital transmission system, data exchange network, etc., can solve the problems of large and complex systems, large construction projects, difficult maintenance, etc., to ensure transmission quality, less sound quality loss, and strengthen The effect of switching functions

Active Publication Date: 2005-01-12
杭州联汇云晟科技有限公司
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Problems solved by technology

Such a structure, the system is huge and complex, not only the construction project is large, time-consuming and labor-intensive, but also the maintenance is very difficult

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  • Network transmission of audio signal and matrix switching method
  • Network transmission of audio signal and matrix switching method

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Embodiment Construction

[0020] The steps of embodiment see figure 1 . The audio signal transmission and switching method is based on the CobraNet protocol, which is a communication protocol for transmitting audio signals over an Ethernet network. The transmission and switching of audio signals on the Ethernet network are realized through network audio interface equipment and control equipment. The method includes signal conversion steps, signal composite step, a signal transmission step, a signal reception and decomposition step, a signal conversion step, and a switching control step.

[0021] 1. The signal conversion step is to pass each analog / digital input audio signal through the signal conversion circuit of the network audio interface device, and convert the sampling rate and resolution to obtain an Ethernet network with a sampling rate of 48KHZ and a resolution of 20 bits / 24 bits. The serial data stream required to transmit audio signals.

[0022] 2. The signal compounding step is to compound...

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Abstract

Based on communication protocol CobraNet, the method through network audio frequency interface device and control device realizes transmission and switch of audio signal on Ethernet. The method includes following steps: signal conversion, signal composite, signal transmission, signal reception and decomposition, signal transform and switch control. The system simplifies design and construction of transmission and switch system, guarantees signal quality and flexible control modes.

Description

technical field [0001] The present invention relates to a method for transmission and switching of audio signals, in particular to a method for network transmission and matrix switching of audio signals. The method utilizes the communication protocol for transmitting audio signals via Ethernet, that is, the CobraNet protocol, to realize the transmission of audio signals on Ethernet And switching, used in audio signal switching systems in public address, sound reinforcement, conference and broadcasting industry. Background technique [0002] The audio signal switching system occupies an important position in public broadcasting, sound reinforcement, and radio and television audio systems. It is directly related to the sound quality assurance of audio signals, system security assurance, and system convenience and flexibility. The cost of the system also occupies a considerable weight, which directly affects the cost of the system. Currently, the simplest switching system for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/00H04L29/06
Inventor 赵凡祁才君
Owner 杭州联汇云晟科技有限公司
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