Audio Driver Support for the WMA Pro-over-S/PDIF Format

Updated: April 30, 2004
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Audio Driver Support for the WMA Pro-over-S/PDIF Format

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Updated: Apr 30, 2004
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This paper provides information about Windows Driver Model (WDM) audio drivers for the Microsoft Windows family of operating systems. It provides guidelines for hardware vendors to enhance the drivers for their Windows audio devices to play Windows Media Audio Professional (WMA Pro) audio streams in digital pass-through mode over a Sony/Phillips digital interface format (S/PDIF) link.

This information applies for the following operating systems:
Microsoft Windows 98
Microsoft Windows Millennium Edition
Microsoft Windows 2000
Microsoft Windows XP
Microsoft Windows Server 2003
Microsoft Windows Vista

Future versions of this preview information will be provided in the Windows Driver Kit (WDK).

Included in this white paper:

Background

S/PDIF Pass-Through Operation

Declaring Non-PCM Data Ranges

References


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