Hi Dennis ,
I managed to mute the internal sounds using Audio Assignments instead of midi. ( 4.0c)
The Midi GM page we were trying to alter is just set to default.

I normally only use L& R into my Stereo System. I don't use Output 3& 4 so maybe might'nt work for you???
I've basically directed the sd's gm audio to 3 &4 , something that is non existent in my stereo system.

But to make sure the sd styles play ok, you'd need to follow the below settings.

Utility Page 2 GM Assignment
Setting L&R 3&4
Change all the L&R's to either 3 or 4


Utility Page keyboard Assignment
Setting L&R 3&4
Change all the 3&4's to L&R.

If you're also trying to play along using sd sounds for melody voices & Yamaha sounds for the midifiles, we'll have to change the midi transmit setting on one of the channels. You wouldn't want the module playing what you're playing on the keyboard??

What free channel have you got that your midifiles don't use??

best wishes
Rikki

P.s. Just realized it's more of a polyphony issue for you. The above may not help. Are you having melody notes drop out on your sd1??




[This message has been edited by rikkisbears (edited 10-13-2007).]