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Adaptive progressive download based on the MPEG-4 file format
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作者 FRBER Nikolaus DHLA Stefan ISSING Jochen 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第z1期106-111,共6页
关键词 HTTP-streaming Adaptive progressive download MPEG-4 file format (MP4) Moov box
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数字音频格式面面观(上) DIGITAL AUDIO FILES FORMAT Ⅰ
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《数字生活》 2007年第3期126-131,共6页
随着计算机技术的不断发展,数字技术凭借着在制作、容量、传播、保存等各方面的优势,不断地渗透到音乐制作领域,为音乐的发展开拓出了新的道路,由此带来的便是数字音频技术。首先,我们来明确一下数字音频的概念,简单的说它是指将模拟声... 随着计算机技术的不断发展,数字技术凭借着在制作、容量、传播、保存等各方面的优势,不断地渗透到音乐制作领域,为音乐的发展开拓出了新的道路,由此带来的便是数字音频技术。首先,我们来明确一下数字音频的概念,简单的说它是指将模拟声音经抽样、量化和编码后得到一个的用来表示声音强弱的数据序列,也就是说,数字音频其实就是一组有意义的有序数据排列。当要昕音乐时, 展开更多
关键词 音频格式 DIGITAL AUDIO fileS FORMAT 音乐播放器 比特率 数字音频技术
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AVS-M: From Standards to Applications
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作者 王业奎 《Journal of Computer Science & Technology》 SCIE EI CSCD 2006年第3期332-344,共13页
AVS stands for the Audio Video coding Standard Workgroup of China, who develops audio/video coding standards as well as system and digital right management standards. AVS-M is the AVS video coding standard targeting f... AVS stands for the Audio Video coding Standard Workgroup of China, who develops audio/video coding standards as well as system and digital right management standards. AVS-M is the AVS video coding standard targeting for mobile multimedia applications. Besides the coding specification, AVS also developed the file format and Real-time Transport Protocol (RTP) payload format specifications to enable the application of AVS-M video in various services. This paper reviews the high-level coding tools and features of the AVS-M coding standard as well as the file format and payload format standards. In particular, sixteen AVS-M high-level coding tools and features, which cover most of the high-level topics during AVS-M standardization, are discussed in some detail. After that, the error resilience tools are briefly reviewed before the file format and RTP payload format discussions. The coding efficiency and error resiliency performances of AVS-M are provided finally. H.264/AVC has been extensively used as a comparison in many of the discussions and the simulation results. 展开更多
关键词 AVS-M video coding standard RTP payload format file format
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