I noticed that I am not getting Dolby Digital surround on some of my games. Yet, I do get Dolby Digital surround in windows media player etc.
Upon further investigation, it appears that the Windows Sound Properties dialog Playback devices->RealTek Digital Output->Properties->Advanced->Default shows Dolby Digital Live (5.1 surround). This is correct. However, when I run the same dialog in a 32 bit space, Dolby Digital Live no longer shows as an option.
Example,
1) Open command prompt
2) On prompt run,
Rundll32 Shell32.dll,Control_RunDLL Mmsys.cpl,,0
This will open the Sound Properties, click properties as described above and note that Dolby Digital Live appears as an option.
3) Now cd to \Windows\SysWOW64
4) Re-run command from 2. This will run the cpl in 32 bit space. This can be verified in process manager with the*32 denoted on rundll32.
5) Click Properties... and note that Dolby Digital Live no longer appears as an option.
My theory is that 32 bit applications will not be able to access Dolby Digital Live and thus not output 5.1 (2 speakers still work).
I am thinking this is a driver installation issue, but have the latest drivers from Realtek( 6/11/2012 ). Something might be missing from the Wow6432Node.
Any ideas?
Upon further investigation, it appears that the Windows Sound Properties dialog Playback devices->RealTek Digital Output->Properties->Advanced->Default shows Dolby Digital Live (5.1 surround). This is correct. However, when I run the same dialog in a 32 bit space, Dolby Digital Live no longer shows as an option.
Example,
1) Open command prompt
2) On prompt run,
Rundll32 Shell32.dll,Control_RunDLL Mmsys.cpl,,0
This will open the Sound Properties, click properties as described above and note that Dolby Digital Live appears as an option.
3) Now cd to \Windows\SysWOW64
4) Re-run command from 2. This will run the cpl in 32 bit space. This can be verified in process manager with the*32 denoted on rundll32.
5) Click Properties... and note that Dolby Digital Live no longer appears as an option.
My theory is that 32 bit applications will not be able to access Dolby Digital Live and thus not output 5.1 (2 speakers still work).
I am thinking this is a driver installation issue, but have the latest drivers from Realtek( 6/11/2012 ). Something might be missing from the Wow6432Node.
Any ideas?