I'm using win 7 64bit. x1expanded. I have several synths loaded. zeta 1.5, rapture, dimension pro, Bass. s every time I hit a note on my keyboard, Axiom 49 2nd gen, I get a momentary delay before I hear what I plunked down on. doesn't matter which midi file I'm working on, it does it on all of them n n , Is there a buffer size issue that I may be overlooking. I just had this problem start on this project. I did a stock install, I've not tweaked anything except ACT for the Axiom. Thanks

Still need help, in a way... I found the culprit. Once I froze Session Drummer 3, my delay on my other synths ended. This is on my core I-7 system.... Is there a setting that can help keep sd3 from delaying other midi / softsynths?

I assume you are using ASIO drivers? What is your latency set at?
Your system should be able to run lots of softsynths without problems.

Are you running two audio interfaces simultaneously? ASIO can operate only one at a time.

My guess would be that you have a plug-in on the SD track that uses an extra buffer of its own for processing, and requires Plug-in Delay Compensation. SONAR applies PDC automatically, delaying all other tracks including synths and live, input-echoed audio) to maintain sync. On a drum track, Transient Shaper would be a likely offender.

If that's the case, and you don't want to leave SD frozen, you will need to remove the offending plug-in from the track, possibly substituting something else that doesn't need PDC. In general plug-ins that do need PDC are intended for the Mixing/Mastering phase of a project and shouldn't be used while still tracking.

There's also a PDC Bypass button (default hotkey "D" IIRC) in the Control Bar for temporarily disabling PDC on input-monitored audio tracks, but I don't recall if it works for soft synths.

I tried to use the PDC button and that seemed to help but when I used it, it really put the regular audio tracks out of whack. I had two different plugins while I was tracking: Guitar Rig 4 pro and Transient shaper. I know that TS64 shouldn't be used while tracking, but I was experimenting and liked what I had. TS64 was on the Kick AUDIO from SD3. The combination may have been the culprit. t thanks for the help guys.