What is evd? EVD basic introduction
Full name
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Enhanced Versatile Disk
definition
The EVD uses a DVD disc as a storage medium and uses the H264 video compression standard. Thanks to advanced compression, EVD offers a much higher quality than DVD-Video on the same platter.
EVD (Enhanced Versatile Disk) is an enhanced multimedia disc system, commonly known as "a new generation of high-density digital laser disc system", which is an upgraded product of DVD. The resolution of EVD products is five times that of DVDs. In terms of sound effects, high-fidelity and surround sound are simultaneously achieved for the first time in the world. An EVD disc can currently store about 110 minutes of audio and video programs. Experts pointed out that EVD combines powerful sound effects and bright picture quality. It is the first time in the world to realize the storage and playback of high-definition digital programs based on optical discs, bringing the Chinese people the high-definition era DVD player.
What is the EVD standard?
EVD is called the new generation of high-density digital laser disc system. Compared with DVD and super VCD, the EVD has obvious technical advantages and fills the gap in the storage and playback of domestic high-definition program discs. At the end of 2001, EVD passed the technical appraisal of the Ministry of Information Industry, which was also developed by the company.
The EVD standard is a high-definition optical disc and player industry standard developed by a consortium of major consumer electronics manufacturers in China. It has a number of independent intellectual property rights. The alliance members include Shinco, Amoi, and the Ministry of Information Industry. Ten companies and technology institutions.
Every time a Chinese DVD manufacturer sells a DVD in China, it will pay a royalty of more than a dozen dollars to the "6C Alliance" with DVD intellectual property rights. If you export, the patent fee will exceed $20. The person in charge of Beijing Shuguo Digital Technology Co., Ltd. said in an interview last year: "In order to make the next generation of disc players no longer repeat the mistakes of the domestic DVD industry, and thus master the leading role of China's HD industry development, we are developing EVD. Original intention."
EVD technology features
In terms of video
The system not only achieves standard definition, but also achieves 8 different video qualities from VCD quality to high definition. It fully supports various usage requirements and usage environments including high definition digital TV, and can be directly used as high definition. Test equipment and home entertainment equipment used in digital television production.
In terms of audio
The system uses EAC audio compression technology with independent intellectual property rights, which not only fully supports mono, dual channel and 5.1 channels, but also superior in audio quality to Dolby, which is usually adopted and charged a high license fee in current DVD players. AC-3.
In terms of subtitles
The system inherits and develops the research results of Super VCD, realizes 256 colors of floating subtitles, and supports transparent color. The display quality and flexibility of subtitles are far superior to DVD subtitles.
Moreover, more importantly, EVD has obtained 22 patents, developed 5 sets of software, and tested by third parties. Compared with the super VCD and DVD systems, the technical advantages are obvious, which fills the domestic high-definition program disc storage and playback. Blank, in the country is a groundbreaking achievement. Among them, the audio compression algorithm (EAC) with independent intellectual property rights generates audio superior to Dolby AC-3 quality at the same bit rate, reaching the advanced level in the international audio compression field.
Compared to Super VCD and DVD
Compared with super VCD and DVD, EVD technology has obvious advantages. Product performance indicators show that the difference between EVD and DVD is first of all high definition, EVD pixels are nearly five times larger than DVD, and can receive digital TV programs; with a unique "rewritable function", you can directly record programs and put The broadcasted program is directly engraved into a compact disc; it is fully compatible with the computer, and through it, the home appliance and the computer are connected to establish an in-house information network. According to professional estimates, the industry scale of EVD will reach 10 million sets of annual production capacity of DVD players and 200 million discs. The supporting production capacity of related devices can exceed 10 million sets.
EVD is truly made in China: it has independent intellectual property rights, masters core technologies, and controls and defines the right to control standards. EVD is a powerful and versatile new consumer electronics product that combines high-definition digital programming players, hi-fi and surround sound, large-capacity karaoke, video recorders, games, and set-top boxes. Videophone, Internet access and a computer that meets the needs of the general family. In addition, it can be used as a detection and demonstration device for the production and sale of televisions.
EVD has obvious technical advantages over DVD
EVD supports the storage and playback of high-definition TV programs. It has obvious technical advantages over DVDs: it has network browsing function, supports car traffic navigation; supports home information network platform and game console functions; and establishes world leading position in audio compression; Established a self-established standard, brought the DVD player of the high-definition era to the Chinese people, and set a good example for domestic related enterprises to expand their living space.
The advantage of entertainment tablet lies in having a powerful chip and excellent hardware. If you want to play various online videos on the tablet and run various software smoothly, the performance of the hardware is an absolute prerequisite. In addition, a high-speed and stable WIFI module is also required, which must be compatible with multiple 802.11 B/G/N protocols at the same time, so that the webpage can be loaded instantly when the webpage is opened, and the online video can be played smoothly. So hardware is the premise and foundation, without good performance everything else is empty talk.
In addition to having a good CPU as a prerequisite, it is equally important to carry a professional video player. A professional video player must perform equally well both online and offline.
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