Hey!
All the sysex messages are in the SD1 tehnical book.Also I recommend a really good software "Sd1 Mastering Studio" from
http://www.soundcompany.net/sd1/mastering_studio/ that makes everything easy.
Also ...a simple way to have a dedicate track and channel for vocalizer (is not necesary to be channel midi 15...I'm using this one 'cause I get used with it...it can be anyone..except 10)
So a easy way to do it is to...
1.Load a midifile
2.Go to F1 GM Part
3.Let the midi play for a couple of beats.
4.Stop it with "Pause"
5.Go to an empty track..check the display for it (no midi activity )
6.With F8 Part Mode..push till you'll have "Vocalize"
8.Save the file with the new settings using SAVE/ENTER
Now you have a track dedicated to vocalizer.
Next step...record on it what you need...in SD1 seq or external one.
Check the manual page 106 and 84
If you like you can include next "F0 26 7B 33 00 0E 01 F7 " in the midifile..that let SD1 know that Midi Channel 15 is Vocalizer dedicated.Than record waht you need.Also check for the Vocalizer to be Active (red LED on)
Hope it helps...
Vio