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FIX: When you play music on a Windows CE 5.0-based device that supports A2DP, the sound does not come from the paired Bluetooth enabled audio device as expected

A Windows CE 5.0-based device is running an image that supports Advanced Audio Distribution Profile (A2DP). On this device, you enable an A2DP connection. When you use this device to play music in Windows Media Player, you notice that the sound does not come from the paired Bluetooth enabled audio device as expected. Instead, the sound comes from the local audio of the Windows CE 5.0-based device.
This problem occurs because the DirectShow audio renderer always plays on the Windows CE-based device, which is the default device. This device has the ID 0.

Software update information

A supported software update is now available from Microsoft as Windows CE 5.0 Platform Builder Monthly Update (September 2008). You can confirm this by scrolling to the "File information" section of this article. The package file name contains the product version, date, Knowledge Base article number, and processor type. The package file name format is:
Product version-yymmdd-kbnnnnnn-processor type
For example: Wincepb50-060503-kb917590-armv4i.msi is the ARMV4i Windows CE 5.0 Platform Builder fix that is documented in KB article 917590 and that is contained in the May 2006 monthly update. To resolve this problem immediately, click the following article number for information about obtaining Windows CE Platform Builder and core operating system software updates:
837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products
After you apply this hotfix, you can set the waveout device in the DirectShow audio renderer.


This update is supported only if all previously issued updates for this product have also been installed.

Restart requirement

After you apply this software update, you must perform a clean build of the whole platform. To do this, use one of the following methods:
  • On the Build OS menu, make sure that the following options are selected, and then click Sysgen:
    • Clean Before Building
    • Copy Files to Release Directory After Build
    • Make Run-Time Image After Build
  • On the Build OS menu, click Open Release Directory. Then, at a command prompt, type blddemo clean -q, and then press ENTER.
You do not have to restart the computer after you apply this software update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this software update package has the file attributes or the later file attributes that are listed in the following table.
File nameFile sizeDateTime
Wincepb50-080912-kb956452- armv4i.msi1,156,09612-Sep-200818:28
Wincepb50-080912-kb956452- mipsii.msi1,161,21612-Sep-200818:28
Wincepb50-080912-kb956452- mipsii_fp.msi1,162,75212-Sep-200818:28
Wincepb50-080912-kb956452- mipsiv.msi1,162,75212-Sep-200818:28
Wincepb50-080912-kb956452- mipsiv_fp.msi1,163,26412-Sep-200818:28
Wincepb50-080912-kb956452- sh4.msi1,152,51212-Sep-200818:28
Wincepb50-080912-kb956452- x86.msi1,120,25612-Sep-200818:28
The English version of this software update package has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
File nameFile sizeDateTimePath
Wavcore.lib460,19810-Jun- 200813:10public\directx\oak\lib\armv4i\debug
Waveout.lib71,50026-Aug- 200819:53public\directx\oak\lib\armv4i\debug
Wavcore.lib347,61410-Jun- 200810:19public\directx\oak\lib\armv4i\retail
Waveout.lib58,63426-Aug- 200819:53public\directx\oak\lib\armv4i\retail
Wavcore.lib466,48410-Jun- 200818:41public\directx\oak\lib\mipsii\debug
Waveout.lib72,35226-Aug- 200819:53public\directx\oak\lib\mipsii\debug
Wavcore.lib345,65610-Jun- 200816:04public\directx\oak\lib\mipsii\retail
Waveout.lib56,85226-Aug- 200819:53public\directx\oak\lib\mipsii\retail
Wavcore.lib468,19411-Jun- 200800:11public\directx\oak\lib\mipsii_fp\debug
Waveout.lib73,50226-Aug- 200819:53public\directx\oak\lib\mipsii_fp\debug
Wavcore.lib347,40810-Jun- 200821:34public\directx\oak\lib\mipsii_fp\retail
Waveout.lib57,77626-Aug- 200819:53public\directx\oak\lib\mipsii_fp\retail
Wavcore.lib470,51411-Jun- 200805:28public\directx\oak\lib\mipsiv\debug
Waveout.lib74,29026-Aug- 200819:53public\directx\oak\lib\mipsiv\debug
Wavcore.lib347,30811-Jun- 200802:53public\directx\oak\lib\mipsiv\retail
Waveout.lib58,43226-Aug- 200819:53public\directx\oak\lib\mipsiv\retail
Wavcore.lib470,61411-Jun- 200810:47public\directx\oak\lib\mipsiv_fp\debug
Waveout.lib74,54426-Aug- 200819:53public\directx\oak\lib\mipsiv_fp\debug
Wavcore.lib347,26411-Jun- 200808:09public\directx\oak\lib\mipsiv_fp\retail
Waveout.lib58,71826-Aug- 200819:53public\directx\oak\lib\mipsiv_fp\retail
Wavcore.lib432,73010-Jun- 200807:31public\directx\oak\lib\sh4\debug
Waveout.lib67,13026-Aug- 200819:53public\directx\oak\lib\sh4\debug
Wavcore.lib328,86410-Jun- 200804:59public\directx\oak\lib\sh4\retail
Waveout.lib53,73426-Aug- 200819:53public\directx\oak\lib\sh4\retail
Wavcore.lib393,58810-Jun- 200802:20public\directx\oak\lib\x86\debug
Waveout.lib60,05026-Aug- 200819:53public\directx\oak\lib\x86\debug
Wavcore.lib320,22209-Jun- 200823:41public\directx\oak\lib\x86\retail
Waveout.lib52,72226-Aug- 200819:53public\directx\oak\lib\x86\retail
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
To completely enable audio functionality in Bluetooth A2DP, you must also apply hotfix 956296. For more information about hotfix 956296, click the following article number to view the article in the Microsoft Knowledge Base:
956296 FIX: Sound does not come from a Bluetooth-enabled audio device as expected on a Windows CE 5.0-based device that supports A2DP
For more information about A2DP, visit the following MSDN Web site:For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Article ID: 956452 - Last Review: 11/21/2008 16:52:03 - Revision: 2.0

  • Microsoft Windows CE 5.0
  • kbexpertiseadvanced kbfix kbqfe KB956452