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原创 什么是声卡,具体有什么用处?推荐一款
声卡(Sound Card)是计算机中负责声音信号处理的硬件设备,主要实现声波与数字信号的相互转换。它通过模数转换器(ADC)将模拟声音信号转为数字信号存储,再通过数模转换器(DAC)还原为模拟信号输出,这一过程称为脉冲编码调制(PCM)。根据形态可分为板卡式、集成式和外置式三种类型,其中集成式声卡常见于主板,外置式则通过USB等接口连接,适合移动场景。
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