题目内容

案例分析题多媒体信息的数据量远超过传统文本信息，因此多媒体出版物通常使用大容量的光盘作为存储发行的媒体。根据具体的需求，可以选择不同格式、不同容量的光盘来存储发行多媒体出版物。作为使用最广泛的存储媒体，光盘存储技术也一直在不断发展之中。随着高清晰影视节目的出现，对更大容量光盘存储技术的需求以及蓝色激光技术的应用，促使产生了采用蓝色激光技术的新一代光盘。目前市场上的蓝色激光光盘产品Blu-ray的单层存储容量达到了25GB，它与DVD-ROM相比，大幅度提高存储容量最主要的技术手段是什么？

查看答案

搜索结果不匹配？点我反馈

更多问题

案例分析题在设计网络实时传输多媒体信息的应用系统时，必须准确计算媒体流的数据量，然后根据网络传输系统的实际情况来确定流式媒体的数据传输率等系统运行参数，从而在满足实时传输的条件下提供高质量的多媒体信息传输服务。假设你需要在1Mbps带宽的网络上实现实时的立体声音频节目的播放，请考虑以下的应用需求，计算并解决问题。如果系统设计的每个声道音频信号量化位数是固定的16bits/采样，要实现实时的无压缩音频数据播放，则：①最好的质量下应该设置系统对音频信号的采样率是多少？②此时系统在保证不丢失频率分量的前提下能够传输的信号最高频率是多少？

No sporting event takes hold of the world’S attention and imagination like the Olympic Games The football world Cup fascinates fans in Europe and South America；baseball’s World Series is required viewing in North America；and the world table Tennis Championships attracts the most interest in Asia． But the Olympics belong to the whole world．Now after travelling to 17 countries over 108 years the summer Games are returning to Athens the place where the first modern Olympics was held． Participation in the Games is looked on not only as an achievement，but also as an honour, The 16 days between August 13 and 29 will see a record 202 countries compete，up from Sydney’s 199. Afghanistan is back，having been banned from Sydney because the Taliban government didn’t let women do sports．There is also a place for newcomers East Timer and Kiribati A total of 10．500 athletes will compete in 28 sports，watched by 5 3 million ticket—paying viewers as well as a television audience of 4 billion． Athens is to use its rich history and culture to make the Olympics as special as possible．The Games will open with cycling events which start in front of the Parthenon and Acropolis monuments．The final event will be a historic men’s marathon following the 0rjgihal route l"un by Phidippides in 490 BC to bring news of victory over the Persians． The ancient stadium at Olympia．first used for the Games nearly three centuries ago，will stage the shot put competitions．And the Panathenian Stadium，where the first modern Olympics was held，is to host the archery (射箭)events． If the well—known ancient sites deliver a great sense of history to the Games．the 39 new venues add a modem touch to the city of Athens The main Olympic stadium．with a giant glass and steel roof，is the landmark(标志)building of the Olympics． “We believe that we will organize a‘magical’Games．”said Athens 2004 President Gianna Angelopoulos—Daskalaki．“Our history with the Olympic Gaines goes back nearly 3,000 years, and Athens 2004 could be the best ever．” Participation in the OIympic Games is looked upon as an honor as well as an achievement．（）

A. Right
B. Wrong
C. Not mentioned

案例分析题我方从泰国A公司进口一批大米，签定“CFR上海”合同，货轮在台湾海峡附近沉没。A公司未及时向我方发出装船通知，我方未办理投保，无法向保险公司索赔。故我方要求对方承担责任，但泰国A公司以货物离港，风险已经转移给我方为由拒绝承担责任。问：泰国A公司的行为是否合理，究竟由谁承担责任？为什么？

案例分析题在设计网络实时传输多媒体信息的应用系统时，必须准确计算媒体流的数据量，然后根据网络传输系统的实际情况来确定流式媒体的数据传输率等系统运行参数，从而在满足实时传输的条件下提供高质量的多媒体信息传输服务。假设你需要在1Mbps带宽的网络上实现实时的立体声音频节目的播放，请考虑以下的应用需求，计算并解决问题。如果系统设计的音频信号采样率是固定的44.1kHz，要实现实时的无压缩音频数据播放，在最好的质量下应该设置系统对音频信号的量化位数是多少？