论文部分内容阅读
最近几年MP3及通过Internet下载音乐日趋流行,MP3有可能成为又一种被大众所接受的音乐载体,对传统的音乐制品发行销售体系势必产生一定的冲击,当前各大唱片出版集团正在出台应对策略。MP3是什么意思?它是一种用来存储音乐的通用计算机文件格式,经过强大的压缩处理从而减少占用计算机硬盘空间。其压缩比并不固定,但名义上约为12:1。与MD采用的ATRAC压缩算法类似,它也是有损压缩,解压缩后文件不能恢复成原始波形,运用心理声学模型去掉了人耳难以听到一部分信号。
In recent years, MP3 and music download through the Internet become increasingly popular, MP3 may become another popular music carrier, the traditional music product distribution system is bound to have a certain impact, the current major record publishing group is responding Strategy. MP3 What does it mean? It is a common computer file format used to store music, after a strong compression processing to reduce the occupation of computer hard disk space. The compression ratio is not fixed, but nominally about 12: 1. Similar to the ATRAC compression algorithm used by MD, it is also lossy, and the decompressed file can not be restored to its original waveform. Using the psychoacoustic model, it is hard to hear part of the human ear.