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一、CD的变迁 认CD(Compact Disc:小型唱片)上市的1982年10月至今12年有余。CD出世仅四年时间,在1986年其销量就不知不觉地超过了EP、LP等在全世界流行一百多年的模拟唱片。最近除了一部分发烧友之外,很多年轻人已不知道有什么黑色唱片了。 大家知道,CD的直径为12cm,单面最多可记录74分40秒的音乐节目,其数字声音的高音质是以前的模拟唱片所无法比拟的。而且,十多年来,CD并未驻足不前,随着数字信号处理技术、高密度记录技术、大容量存储器技术以及短波长半导体激光器技术等相关技术的
First, the CD changes recognize CD (Compact Disc: small disc) listed in October 1982 so far more than 12 years. CD was born only four years, its sales in 1986 unknowingly exceeded the EP, LP and other popular in the world more than one hundred years of analog records. Recently, in addition to some fans, many young people do not know what a black record. As we all know, CD diameter of 12cm, single-sided recording up to 74 minutes and 40 seconds of music programs, the high-quality digital sound is unmatched by previous analog recordings. Moreover, CD has not stopped for more than a decade, with the related technologies of digital signal processing technology, high-density recording technology, mass storage technology and short wavelength semiconductor laser technology