Hi Ron, > We don't have "completion routines" in SONAR, being all in user mode, but we > do have a time critical mix thread that blocks waiting on I/O completion. I > suspect it piggy-backs on some of the same mechanisms. > The kernel DPC (Defered Procedure Calls) level, where the completion routines are called in, is higher as any kernel or user thread so should have a *much* better timing as user mode threads. > I assume your normal test bed is WaveLab. > and Cubase SX at the moment > Have you verified that this change with Media Player occurs when you are > hosted > in other apps, such as Sound Forge or SONAR? In SONAR I'd be particularly > curious > to see how this behaves using DirectKS instead of MME. > Not yet, I am mainly focused on ASIO at the moment (and happy that Sonar 2.2 also supports this) but will try later with DirectKS ans Sonar. The way I see the current situation (from the users point of view) is that MME is ok for playing back mp3's and that everybody who wants to do more uses ASIO. Regards, Bart ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/