[net.music.synth] Korg DW6000 and Yamaha DX21

elbert@gitpyr.UUCP (CONDON,MICHAEL DAVID) (01/11/86)

 - Line eater food -

@begin Disclaimer

This is my first posting to the net so please bear with me.  I am  not really
a keyboard player - I have been a guitar player for 19 years (I started
when I was 5 years old).  I really like the keyboard though.

@end Disclaimer

A couple of questions.  First, I own a Korg DW6000 and a friend of mine owns a 
Yamaha DX21.  They are both great machines.  On the DX21(Iunderstand FM synth-
esis) I can hear some 'noise' on some presets when the lower frequency keys are
played.  It is probably there on the high frequency notes too but since it is  
a function of the note frequency you are not able to hear it (it is itself high
frequency).  Anybody else heard it,  have any thoughts on it??  It is quite 
annoying and very clear on my stereo - a Tascam Portastudio 246 for mixer/rec-
order into a Carver C1 preamp , a Hafler 500 amp and a pair of Klipschorns.

My second question concerns the Korg.  I know that the waveforms are contained
in 2 Hitachi ROMS(I opened up the Korg and found them and got the spec sheets
on them).  I would dearly love to be able to program my own waveforms.  Any-
body out there in net land ever considered doing this??  I was considering 
(gulp) taking out the ROMS and replacing them with RAM of equivalent size.  
Then I might also have a bus running to a PC that allowed me to address that
memory as machine memory(some unused memory, say above $C0000 in an IBM PC).
I could have a way of allowing only one machine to get at the RAM at once. 
I think there is a chip available that will switch 2 sets of 4 lines to 1(set).
A couple of these would do it.  It sounds interesting.  I would greatly apprec-
iate any info/ideas on the subject.

Thanx in advance . . .
                      Mike