Hi All 
On a fresh win install and having only Crystal WDM audio codec as a sound driver, directx is not using it directly or its full potential, in other words:
A – when acceding the directx properties panel > direct sound option not only
the primary windows sound driver is always selected at the playback device as for sound recording again primary windows sound capture driver
B – in order to force windows directx to use it I need to manual select the WDM audio driver at directx properties panel > direct sound option then go to directx properties panel > direct sound > multimedia properties – click on use only preferential drivers, unclick it, apply button and back to normal use.
C - tried also DX8 - same problem
This procedure must be repeated after every reboot or directx will not use the wdm driver, also if I leave the wdm driver select as preferential driver the interactivity with the cpu and the graphic card is affected loosing by this way between 70 to 90 fps
Is this normal concerning wdm audio drivers? Or is there a way to have always the wdm audio selected at the directx options?
Regards
On a fresh win install and having only Crystal WDM audio codec as a sound driver, directx is not using it directly or its full potential, in other words:
A – when acceding the directx properties panel > direct sound option not only
the primary windows sound driver is always selected at the playback device as for sound recording again primary windows sound capture driver
B – in order to force windows directx to use it I need to manual select the WDM audio driver at directx properties panel > direct sound option then go to directx properties panel > direct sound > multimedia properties – click on use only preferential drivers, unclick it, apply button and back to normal use.
C - tried also DX8 - same problem
This procedure must be repeated after every reboot or directx will not use the wdm driver, also if I leave the wdm driver select as preferential driver the interactivity with the cpu and the graphic card is affected loosing by this way between 70 to 90 fps
Is this normal concerning wdm audio drivers? Or is there a way to have always the wdm audio selected at the directx options?
Regards