The EVD system is an upgraded DVD product. The EVD (Enhanced Versatile Disk) is called “Enhanced High-Density Digital Laser Disc Systemâ€. From the published EVD technology patent, it is mainly the audio/video filtering transformation and encoding/decoding optimization. The method is to improve the sound picture quality and increase the data compression ratio. In addition, the "Dynamic Overlay Captioning on Digital Video" method inherited from SVCD can make subtitles displayed in 256 colors. Including 5 softwares, namely "DVD-EVD Conversion Software", "AC3-EAC Conversion Software", "OGT Production System", "EVD Digital Video Disc Production System" and "VCD/DVD/EVD Player". "EVD" is a digital optical disc system owned by the Chinese people with independent intellectual property rights and a national standard in the field of digital optical discs in China. The technical specifications of the EVD system have been submitted to the International Electrotechnical Organization and the International Organization for Standardization and are expected to become international standards. Provide users with more clear programs, EVD system speeds up the stream by nearly twice the speed of the original DVD technology, image resolution reaches 5 times that of DVD, and achieve more powerful sound, more beautiful subtitles and more flexible options . Its technical characteristics mainly include:
In terms of video, the system not only achieves standard definition, but also realizes 8 different video quality from VCD quality to high definition, and fully supports various usage requirements and usage environments including high-definition digital television. Used as test equipment and home entertainment equipment in the production of high-definition digital television.
In terms of audio, the system uses EAC audio compression technology with proprietary intellectual property rights. It not only fully supports mono, dual, and 5.1 channels, but also has better audio quality than current DVD players. Dolby AC-3 for licensing fees.
In terms of subtitles, the system has inherited and developed the research results of the Super VCD, achieved 256-color floating subtitles, and supports transparent colors. The display quality and flexibility of subtitles are far superior to DVD subtitles.
Moreover, it is even more important that EVD has obtained 22 patents, developed 5 sets of software, and has been tested by a third party. Compared with Super VCD and DVD systems, the technology has obvious advantages, which fills the storage and playback aspects of domestic high-definition programs. Blank is a groundbreaking achievement in China. Among them, the audio compression algorithm (EAC) with independent intellectual property rights is used to generate audio that is superior to Dolby AC-3 quality at the same code rate, which has reached the advanced level of audio compression in the world.
In terms of video, the system not only achieves standard definition, but also realizes 8 different video quality from VCD quality to high definition, and fully supports various usage requirements and usage environments including high-definition digital television. Used as test equipment and home entertainment equipment in the production of high-definition digital television.
In terms of audio, the system uses EAC audio compression technology with proprietary intellectual property rights. It not only fully supports mono, dual, and 5.1 channels, but also has better audio quality than current DVD players. Dolby AC-3 for licensing fees.
In terms of subtitles, the system has inherited and developed the research results of the Super VCD, achieved 256-color floating subtitles, and supports transparent colors. The display quality and flexibility of subtitles are far superior to DVD subtitles.
Moreover, it is even more important that EVD has obtained 22 patents, developed 5 sets of software, and has been tested by a third party. Compared with Super VCD and DVD systems, the technology has obvious advantages, which fills the storage and playback aspects of domestic high-definition programs. Blank is a groundbreaking achievement in China. Among them, the audio compression algorithm (EAC) with independent intellectual property rights is used to generate audio that is superior to Dolby AC-3 quality at the same code rate, which has reached the advanced level of audio compression in the world.
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