Ok, step by step...
1) Regarding the velocity: thanks, I understand now. I didn't take into account that it was adding values, and not just setting the values to the notes. So, yeah, I will watch out for that.
2) Regarding the Hypersonic installation: well, Hypersonic is not a real-time effect. It's just a synthesizer. The Sonar's panel for real-time effects is only for such effects that change audio or midi tracks somehow. Synthesizers can ONLY be inserted through the insert menu. It seems logical. And it suggests you to add midi track and audio output track, which is also very logical. But you can do it manually later, or create many midi tracks for one synth, or create many audio output tracks for one synth, etc. Many possibilities. But, whatever, you already managed it.
3) Regarding the problem I had:
Here's another step by step:
1) Start new project in Sonar.
2) Insert Hypersonic DXi through the insert menu, with one audio output track and one midi source track.
3) Now, add three more midi tracks. (actually, doesn't matter how many)
4) Set the outputs of these midi tracks to Hypersonic, and set the different channel for each. The track which was created automatically when you inserted Hypersonic is probably already set to channel 1. So set the next midi track to channel 2, next to 3, etc.
5) Go to
the Hypersonic synth panel and assign some different Hypersonic's banks to each channel.
6) Record something on those midi tracks.
7) Now play it all, but while it's playing change the velocity of one of those midi tracks. It should change the other velocities.
BTW, try using channels 4, 5, and 6.. I don't know why, but it somehow feels like there was no problem before i got to one of them...
Also, try listening very carefully, because the change in velocity is not easily noticable.
Good luck and thanks!