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Windows 7 Changes Related to Audio Drivers

Updated: March 15, 2010

File name: Win7Changes-Audio.docx
186 KB
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About This Download

This paper highlights the new features and changes in Windows 7 that impact audio device drivers. Developers who are updating audio device drivers to run on Windows 7 should read this paper.

Changes to the USB audio class driver for Windows 7 are also detailed in this paper. USB audio hardware vendors should read the “Changes to the Windows 7 USB Audio Class Driver” section of this paper.

This information applies for the Windows 7 operating system.

Included in this white paper:

  • Changes to Portcls

  • Driver INF Changes

  • Changes to Kernel Streaming Properties

  • Dynamic Format Change Support

  • WaveRT Pull Mode Support

  • Changes to the Windows 7 USB Audio Class Driver

  • Miscellaneous Driver Changes for Windows 7
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