smallstonefan
Thanks! I think I'm going to pursue some other options since I can't get the demo to work... :/
It happened to occur to me that maybe this is your first time setting up a vocoder type effect plugin with Sonar.
I first ran into this issue when I installed Vocalizer Pro and also when I tried the demo of iZotope Stutter Edit.
These are MIDI controlled AUDIO effects.
There are lots of instructions for other DAWs, but one thing important to know is that these plugins are audio effects, not instruments. They must be inserted in the FX bin of the audio source that you intend to work with. Then if you wish to trigger them from a MIDI controller, or MIDi clips, you will need a separate MIDI track, and MIDI input must be enabled on the plugin.
The basic steps to accomplish this are:
1. Create an audio track and a MIDI track.
2. Insert VocalSynth plug-in on the audio track.
3. In the MIDI track, set VocalSynth as the target.
4. In VocalSynth, enable MIDI input.
After you get the basic setup established, a good way to test this is to put an audio clip on the audio track. Then play the audio. Try enabling and disabling the plugin FX as it plays. Some vocoder type plugins will not pass any audio until a MIDI note is played. If you don't hear anything, the plugin is probably inserted correctly. In this case, the track will be silent, until the plugin receives a MIDI note. Disabling the FX should allow you to hear the audio track normally. Once you have the MIDI setup correctly, everything should work fine.