| The broadcast program information resource sharing system is an integrated system of computer application technology, digital audio processing, computer data storage and network transmission technology in one, the system set up primarily to the completion of radio programs broadcast audio storage, convenient for later learning, replay and program review and so on, are also broadcast failure to exclude provide strong evidence.Recording system to record the work is indispensable Radio extremely important technical aspects. It has experienced a long process of evolution. With the continuous progress of technology, broadcasting business growing today, the development of recording system is particularly important. The recording system of digital audio recording system of this research and the early traditional compared with quality loss is small, high stability, large storage, use the advantage of convenient. With the help of digital audio broadcasting station existing broadcast network to realize the network transmission system, to solve the problem and the problem caused by the pre wiring work. application and development of information resources sharing system has good prospects, so the research and development of great significance broadcasts resource sharing system based TCP/IP networks.This topic is designed based on the Windows operating system, TCP/IP network protocol, integrated MPEG-2audio compression coding processing and data storage technologies. A digital audio signal (analog audio signals into digital signals through a professional sound card)connected by using CANNON professional sound card audio cable head, after the audio signal encoding, compression, according to the set date and time are saved to the server disk folder. Set a good network terminal according to the server IP address to access the data stored in the recording and decoding to achieve real-time monitoring package or download, so you can put all the information in the computer channel recording file sharing ways to share to each channel, to recording resource sharing purposes.The main work of this paper has three points:1. In the audio signal recording, this paper presents the use of analog audio signal and a digital audio signal framework involved, in-depth study of the ASIO series and Digigram series multi-channel recording the sound card, and lists its parameters and to choose the best scheme, the server professional sound card under Windows operating system installation and drive standard operating system, combined with the analysis and design of the recording system, which recorded the storage mode in terminal monitor convenient, fast download, operating with high.2. Recording and storing the digital audio, this topic mainly introduced the audio signal through the computer storage way, categories and storage medium of choice, according to the specific program requirements for computer storage hardware research, and gives the theory of recording and storing data and actual recording and storing data, compared with the traditional storage methods (such as tape, DVD etc.) there are significant to improve the security, stability, read and write speed, storage capacity.3. In the network transmission, this paper uses TCP/IP network protocol to transmit audio data in Windows network architecture, in-depth study of the various ways of network transmission (such as ADSL, LAN, optical fiber transmission)and lists the advantages and disadvantages of each, according to need to implement engineering drawing network topology figure, and finally put forward the choice basis and the best solution for network transmission. |
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