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.
Research and Application of Distributed Display and Control AES67 Audio Gateway
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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