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数字音频性能优越,它以取样序列源的方式代替了模拟音频。目前人们普遍认为CD唱机(激光唱盘唱机)优于普通唱机、优于盒式磁带机和盘式磁带机。数字信号的记录和重放,从原理上讲没有信号的衰减和失真,其信噪比仅取决于数字处理本身,与记录和传输媒介无关。 视频数字化 将来,数字视频将象数字音频在音乐中取代模拟音频一样,取代模拟视频。当前高清晰度彩电(HDTV)引人注目(在美国它是采用数字技术的)。此外还有其它数字视频的实例,如CD光盘的全动
Digital audio delivers superior performance by replacing analog audio with sampling sources. At present, people generally think that CD players (CD players) are better than ordinary players, better than cassette tape drives and disk drives. Digital signal recording and playback, in principle, no signal attenuation and distortion, the signal to noise ratio depends only on the digital processing itself, and the recording and transmission media has nothing to do. Digital Video In the future, digital video will replace analog video in digital music like analog audio. The current high-definition television (HDTV) compelling (in the United States it is digital technology). In addition there are other examples of digital video, such as CD-ROM full motion