Multi track midi to multitrack audio rendering. Please help.

I had a CAL script to do this at one point, but it stopped working in Sonar 8.
 
For real hardware MIDI devices I have to do it as you describe, solo'ing and recording them track by track.
 
For VST's however, you should be able to use the Freeze combined with solo'ing which is a lot quicker:
 
1. Solo a MIDI track
2. Freeze the synth track
3. Create a new audio track
4. Copy the frozen audio over to the audio track
5. Unfreeze your original synth track
... repeat for each MIDI channel.
 
Personally I now avoid having VST synths being serviced by more than one MIDI track, and prefer separate instrument tracks. Although it has a higher load on memory and CPU, it's much easier to treat them separately and also much easier to swap out different VST's for single tracks.
 
 

msmcleod thanks, but that is exactly what I want to find out, to not use solo for every track and to render them in CPU capacity rather then record them in "real time" one by one.  
 
sock monkey. Good thought, but VST only has left/right and stereo output. I should of mentioned this.
 
I usually work with audio files in Cakewalk with only a couple of midi tracks., so this is a bit new to me.
 
If this was only one or two projects it would be not too bad, but I have many...
 
 
 

sock monkey, 
Thank you. I re-read your post and found the setting of individual outputs!! 
So a template with 16 prepped audio tracks set with audio inputs for each VST output should do the trick.
 
I am using Synthfont 64BIT VST  
 
I find it better than Tx16wx because it works well with GM ruled SF2 banks and other stuff.
Also developer seems to be a decent guy. He modified VST for me to accept multi file SF2 bank by pointing VST to folder. Actually this should be another topic. I will wait until developer polishes it a little, then post it :) I am sure some folks here will find it usefull.
 
P.S. I have tried, and so far nice! No audible latency recording 16 tracks from individual stereo outputs of VST.
 

msmcleod
For real hardware MIDI devices I have to do it as you describe, solo'ing and recording them track by track.

Unless something has changed drastically since Sonar Platinum, so long as you take care assigning MIDI track ports and channels and have each item of hardware using a different channel/port, as far as I recall it’s possible to simultaneously record as many hardware synths or synth outputs as your interface has inputs for.

Obviously if you’re playing the synths using a controller one synth at a time then only one can be (audio) recorded at a time, but if you record the MIDI then audio tracking mutliple synths is really no different than recording several microphones at the same time.