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目前市场上的音频产品已经基本完成由模拟信号像数字信号过渡的工作,本文我们将围绕数字音频记录及系统与传统的模拟音频系统相比较,探讨其技术优势。数字音频系统的优势主要体现在以下三方面。1.以数字方式拾取声音的抗干扰能力强。在面对干扰信号的情况下,数字音频记录方式所预留的余量要比模拟音频记录小得多,并且可以准确的区分当前记录信号中那个频段是所要拾取的音频信号,哪些频段是干扰噪音。
At present, audio products on the market have basically completed the transition from analog signals to digital signals. In this paper, we will focus on the technical advantages of digital audio recording and systems compared with traditional analog audio systems. The advantages of digital audio systems are mainly reflected in the following three aspects. 1. To pick up the sound of digital anti-interference ability. In the face of interference signals, the margin reserved by the digital audio recording method is much smaller than the analog audio recording, and can accurately distinguish which of the currently recorded signals is the audio signal to be picked up and which bands are interference noise.