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在多媒体计算机中,语音和音乐是最基本的功能之一。实现模拟音频数字化的主要过程是(12)、量化和编码。人们通常用8位声卡或16位声卡来区分不同的声卡质量。若量化位是8位,并规定输入信号幅度为0~3V,则每一量化单位约对应(13)mV。声卡需使用计算机的资源,因此在安装声卡时要分配适当的中断请求号、(14)和直接存取通道号。

  • A.放大
  • B.调制
  • C.采样
  • D.解码
试题出自试卷《软件水平考试(初级)网络管理员上午(基础知识)模拟试卷3》
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