DVDA：数字视频数字音频

为了方便快速书写和使用，“数字视频数字音频”（Digital Video Digital Audio）通常被缩写为DVDA。这一缩写形式在社会传播、新闻报道以及多媒体行业中广泛流通，用于高效指代这一融合了视频与音频数字化处理的技术概念。

A Solution of Digital Video and Digital Audio Optical Transmission System
数字视音频光纤传输系统的实现
Compared with Digital Image and Video Watermark, Digital Audio Watermark faces more challenges.
与数字图像和视频水印技术相比，数字音频水印技术面临着更大的挑战。
China has the biggest group of TV and radio subscribers, so developing and popularizing digital broadcasting system, no matter digital video broadcasting ( DVB ) or digital audio broadcasting ( DAB ) systems, has more importance in our country!
而我国又拥有世界上最广大的广播与电视用户，因此在我国推广数字广播（电视）系统就显得更有意义！
As the common base standard in digital audio and video industry, the digital audio video coding standard has a great amount of requirements in information industry.
数字音视频编解码标准是数字音视频产业的共性基础标准，具有巨大的产业需求。
Resemble with the digital watermark methods of the other media such as still image and video, digital audio watermark must account for some problems which consist of perceptual transparency, data bit rate, robustness, security and real-time etc.
与静态图像、视频等数字水印方法类似，音频水印的研究主要须解决感知透明性、数据嵌入率、鲁棒性、安全性以及实时性等问题。

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