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本文介绍了应用于ＷＳＳ（ＷｉｎｄｏｗｓＳｏｕｎｄＳｙｓｔｅｍ）声效卡的新型关键ＩＣ──Ｃｏｄｅｃ芯片。文中对使用ＰＩＯ（ＰｒｏｇｒａｍｍｅｄＩ／Ｏ）及ＤＭＡ方法实现对音频数据的获取与播放做了详细分析，并对其主要功能的实现和测试提供了程序流程。
This article describes the new key ICs used in WSS (Sound System Sound) cards - the Codec chip. In this paper, the use of PIO (ProgrammedI / O) and DMA methods to achieve a detailed analysis of audio data acquisition and playback, and its main function to achieve and test the program flow.