📄 a-2-11.htm

📁 上海交通大学DSP学习的经典教程文档为HTML格式,循序渐进,方便学习本人从中收益菲浅,拿来共享
💻 HTM
字号:
<html><head><title>饮水思源精华区</title><Content-type: text/html; charset=gb2312><link rel=stylesheet type=text/css href="bbsdl.css"></head><table cellspacing=0 class=title width=90%><th class=title align=left width=20%>饮水思源站</th><th class=title align=center width=60%>文章阅读</th><th class=title align=right width=20%>精华区离线浏览</th></tr></table><hr><table align=center cellspacing=1 class=doc><tr><td>发信人:&nbsp;fangf&nbsp;(方方),&nbsp;信区:&nbsp;DSP<br>标&nbsp;&nbsp;题:&nbsp;数码音响影视设备简介(五)<br>发信站:&nbsp;饮水思源站&nbsp;(Sat&nbsp;Jun&nbsp;&nbsp;5&nbsp;11:13:28&nbsp;1999)&nbsp;,&nbsp;站内信件<br>DVD(Digital&nbsp;Video&nbsp;Disc)&nbsp;是&nbsp;下&nbsp;一&nbsp;代&nbsp;图&nbsp;象&nbsp;记&nbsp;录&nbsp;媒&nbsp;体，&nbsp;它&nbsp;是&nbsp;在&nbsp;与&nbsp;cd<br>相&nbsp;同&nbsp;直&nbsp;径&nbsp;12cm&nbsp;光&nbsp;碟&nbsp;上，&nbsp;用&nbsp;数&nbsp;字&nbsp;信&nbsp;号&nbsp;记&nbsp;录&nbsp;图&nbsp;象&nbsp;和&nbsp;声&nbsp;音&nbsp;信&nbsp;息<br>&nbsp;的&nbsp;媒&nbsp;体，&nbsp;它&nbsp;彩&nbsp;用&nbsp;红&nbsp;色&nbsp;半&nbsp;导&nbsp;体&nbsp;激&nbsp;光&nbsp;器&nbsp;认&nbsp;及&nbsp;较&nbsp;大&nbsp;数&nbsp;值&nbsp;孔&nbsp;径&nbsp;<br>(NA)&nbsp;的&nbsp;物&nbsp;镜。DVD&nbsp;在&nbsp;图&nbsp;像&nbsp;数&nbsp;据&nbsp;压&nbsp;缩&nbsp;方&nbsp;式&nbsp;上&nbsp;采&nbsp;用&nbsp;国&nbsp;际&nbsp;标&nbsp;准&nbsp;MPEG<br>2。&nbsp;而&nbsp;声&nbsp;音&nbsp;数&nbsp;据&nbsp;的&nbsp;压&nbsp;缩&nbsp;则&nbsp;采&nbsp;用&nbsp;杜&nbsp;比&nbsp;AC-3。&nbsp;因&nbsp;此，&nbsp;能&nbsp;将&nbsp;整&nbsp;部&nbsp;<br>电&nbsp;灌&nbsp;制&nbsp;于&nbsp;12cm&nbsp;的&nbsp;碟&nbsp;上，DVD&nbsp;制&nbsp;信&nbsp;号&nbsp;在&nbsp;储&nbsp;量&nbsp;上&nbsp;是&nbsp;一&nbsp;般&nbsp;CDR6－8&nbsp;<br>倍，&nbsp;如&nbsp;果&nbsp;两&nbsp;面&nbsp;储&nbsp;存&nbsp;或&nbsp;制&nbsp;成&nbsp;双&nbsp;层&nbsp;盘，&nbsp;则&nbsp;可&nbsp;进&nbsp;一&nbsp;步&nbsp;增&nbsp;大&nbsp;储&nbsp;存<br>&nbsp;量&nbsp;MPEG2&nbsp;有&nbsp;两&nbsp;个&nbsp;已&nbsp;经&nbsp;确&nbsp;定&nbsp;的&nbsp;平&nbsp;均&nbsp;码&nbsp;率&nbsp;标&nbsp;准:&nbsp;<br>①&nbsp;以&nbsp;4Mbit/s&nbsp;传&nbsp;输&nbsp;速&nbsp;率&nbsp;使&nbsp;获&nbsp;得&nbsp;的&nbsp;图&nbsp;像&nbsp;达&nbsp;现&nbsp;行&nbsp;广&nbsp;播&nbsp;电&nbsp;视&nbsp;质&nbsp;<br>量&nbsp;与LD&nbsp;相&nbsp;近&nbsp;或&nbsp;者&nbsp;超&nbsp;过。&nbsp;现&nbsp;在&nbsp;市&nbsp;面&nbsp;推&nbsp;出&nbsp;的&nbsp;DVD&nbsp;就&nbsp;是&nbsp;这&nbsp;个&nbsp;标&nbsp;<br>准。&nbsp;<br>②&nbsp;以&nbsp;9Mbit/s&nbsp;速&nbsp;率&nbsp;传&nbsp;输&nbsp;图&nbsp;像，&nbsp;使&nbsp;效&nbsp;果&nbsp;优&nbsp;于&nbsp;现&nbsp;行&nbsp;电&nbsp;视&nbsp;制&nbsp;式&nbsp;的<br>&nbsp;画&nbsp;质&nbsp;水&nbsp;平，&nbsp;也&nbsp;大&nbsp;大&nbsp;超&nbsp;过&nbsp;LD&nbsp;的&nbsp;水&nbsp;平。&nbsp;一&nbsp;片&nbsp;DVD&nbsp;包&nbsp;括&nbsp;母&nbsp;语&nbsp;在&nbsp;<br>内&nbsp;最&nbsp;多&nbsp;可&nbsp;记&nbsp;录&nbsp;8&nbsp;种&nbsp;以&nbsp;上&nbsp;语&nbsp;言，&nbsp;另&nbsp;外&nbsp;DVD&nbsp;还&nbsp;有&nbsp;4:3&nbsp;电&nbsp;视&nbsp;观&nbsp;看&nbsp;<br>宽&nbsp;画&nbsp;面&nbsp;的&nbsp;功&nbsp;能，&nbsp;以&nbsp;及&nbsp;超&nbsp;强&nbsp;的&nbsp;记&nbsp;录&nbsp;能&nbsp;力，&nbsp;最&nbsp;多&nbsp;达&nbsp;32&nbsp;种&nbsp;语&nbsp;言<br>&nbsp;的&nbsp;字&nbsp;幕。&nbsp;<br><br>--<br>-----------------------------------------------<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;因一个词的力量<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;我重新开始生活<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;我生来就认识你<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;要把你称作<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;自由<br><br>※&nbsp;来源:·饮水思源站&nbsp;bbs.sjtu.edu.cn·[FROM:&nbsp;202.120.8.11]<br></tr></table><br><caption align=bottom><hr><table align=center cellspacing=1 class=foot><tr><td class=foot><a href="a-2.htm">返回</tr></table><p class=copyr align=center>Copyright &copy; 2001 <a class=copyr href="http://bbs.sjtu.edu.cn">SJTUBBS</a>, All Rights Reserved.<br><br>版权所有<a class=copyr href="telnet://bbs.sjtu.edu.cn">上海交大BBS饮水思源站</a></caption></body></html>
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -