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在进入这次主题之前,我先提一个问题,有谁知道MPEG的全称是什么?别看那些老鸟们常常把MPEG挂在嘴边,可除了知道这是一种影音文件压缩格式,要真说清楚还没几个人呢!其实MPEG是Movie Picture Experts Group的缩写,这个团体一直致力于研究影音数据压缩公开标准,而我们通常所说的MP3实际就是MPEG Layer3的简称。与MPEG Layer1和MPEG Layer2相比,MP3的压缩比大大增强,比之Wave原音格式更是不可同日而语。这也就是为什么一张只能存放10来首歌曲的CD却能放下上百首MP3格式歌曲的原因。 MP3自诞生之日起就争议多多,最近音乐交流网站Napster与五大唱片公司的官司更是闹得沸沸扬扬。但是无可辩驳的是MP3以其接近于CD
Before entering this topic, I first ask a question, who knows what the full name of MPEG? Do not look at those veterans often talk about MPEG, except that this is a compressed audio and video file format, to be true Clearly few people yet! In fact, MPEG is an acronym for Movie Picture Experts Group, this group has been committed to studying the open standard of audio and video data compression, and we usually say MP3 is MPEG Layer3 short. Compared with MPEG Layer1 and MPEG Layer2, MP3 compression ratio greatly enhanced, compared with the Wave original audio format is even more remarkable. This is why a CD that holds only 10 songs can put down hundreds of songs in MP3 format. Since the date of the birth of MP3 controversial a lot, the recent music exchange site Napster and the five major record companies is even more controversy. But what is irrefutable is that MP3 is close to CD