Rendering of VST instruments

Ok. My bad. I made a stupid mistake. I thought I had put a MIDI note on each beat in my test project. Turns out out it's every two beats. So then it works out just fine. That's twice 546 samples = 1092. Modulo 1024 leaves 68. Phew! Reaper is doing everything right. So then it can only be the VSTi's themselves. At least now I know where to complain.

I have tested Korg Wavestation, Dune CM, ReaSamplomatic5000 and MT-Powerdrumkit that I discovered here the other day. Dune CM was the most suspect, but I think it may have some subtle randomization going on. There could be something off about the BPM setting though. If so, the 64th notes at 200 BPM would still be steady, but figuring out the buffer alignments would be impossible. I'll render something at 120 and have a look. (Wavosaur is great for this kind of thing if you set the ruler to samples rather than seconds.) Edit > Nope. The BPM is perfect too.