A continuious 信号 in 时间 which in 樂/乐 allows for the continuious 捕捉 of 為耳/音频 信号

Prior to 数字 技术 all 系统 were 模拟 Though 模拟 系统 allow for a faithful continuious 捕捉 of 声 they 经常 suffer from 噪 噪 is 介绍 at every stage of an 模拟 signal’s pathway and after 时间 the 信号 will become degraded