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WDM Audio Architecture: Basic Concepts

Last Updated: 1/24/2017

This section presents the basic architectural concepts of Windows Driver Model (WDM) audio drivers. The WDM audio architecture is based on kernel streaming (KS) services and is supported in Microsoft Windows 2000 and later and in Windows Me/98. For information about KS services, see Kernel Streaming.

This section discusses the following topics:

Introduction to WDM Audio Drivers

Audio Filters, Pins, and Nodes

Audio Endpoints, Properties and Events

Audio Data Formats and Data Ranges

Digital Rights Management

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