Research and Application of Distributed Display and Control AES67 Audio Gateway
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分布式显示控制系统(以下简称分布式)被广泛应用于指挥调度、视频会议、信息发布等领域,是高清视频信号传输和调度的核心,也担负着大量音频信号的传输和调度任务.分布式在与音频扩声系统之间相互传输音频信号时,通常需要通过非平衡模拟信号线缆实现,存在多次数模(Digital to Analog,D/A)和模数(Analog to Digital,A/D)转换,造成音频信号质量显著下降和精度损失.针对该问题,提出将AES67 音频网关作为分布式和音频扩声系统之间的桥梁,在 2 个系统之间通过AES67实现网际互连协议(Internet Protocol,IP)全数字方式转换与传输,保证高质量的音频传输和性能.
Distributed display and control system(hereinafter referred to as distributed)is widely used in command and scheduling,video conferencing,information release and other fields,is the core of high-definition video signal transmission and scheduling,but also responsible for a large number of audio signal transmission and scheduling tasks.Distributed in the transmission of audio signals between audio reinforcement systems,usually need to be realized through non-balanced Analog signal cables,there are multiple Digital to Analog(D/A)and Analog to Digital(A/D)conversion,resulting in significant decline in audio signal quality and loss of accuracy.To solve this problem,this paper proposes to use AES67 audio gateway as a bridge between distributed and audio amplification systems,and realize Internet Protocol(IP)digital conversion and transmission between the two systems through AES67,so as to ensure high quality audio transmission and performance.
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