Yamaha SY99, Owner'S Manual

Page: 321 / 344

APPENDIX
Using RCM hybrid synthesis
The ability to use an AWM voice as an input to an
operator is one of the radical innovations of the
SY99. Since the architecture is so flexible it will be
a long time before this capability can be fully ex-
plored. This section will suggest one possible
starting point for experimentation.
1. Select the voice mode
From: Voice edit mode
Select: Voice mode (F1) (JUMP #200)
Select: Voice Mode 9 (1AFM&1AWM)
Press: F2 (Com)
2. Initialize the voice common data
From: Voice edit (JUMP #201)
Select: 15 :Initialz (Initialize voice)
Press: ENTER
Press: YES at the "Are You sure?" prompt
Press: EXIT at the "Completed" prompt
3. Initialize the AFM element
From: Voice edit (JUMP #201)
Press: F3 (E1) AFM Element (JUMP #230)
Select: 15:Initialz (Initialize AFM element)
Press: ENTER
Press: YES at the "Are You sure?" prompt
Press: EXIT at the "Completed" prompt
4. Initialize the AWM element
From: Voice edit (JUMP #230)
Press: F4 (E2) AWM element (JUMP #256)
Select: 15:Initialz (Initialize AWM element)
Press: ENTER
Press: YES at the "Are You sure?" prompt
Press: EXIT at the "Completed" prompt
5. Select an AWM wave
Press: F4 (E2) to edit the (JUMP #256)
AWM element
Select: 2:WaveSet (JUMP #257)
(AWM waveform set)
Press: the -1 +1 buttons or use the data wheel or
slider to select the wave you wish to use.
310
When you play the keyboard you will notice that all
waves will sound with the initialized "organ type"
EG, and no velocity or filtering. You will probably
want to add final touches later. EG filtering and
dynamic information are carried over into the FM
operator. However for now we will use only a raw
wave in order to explain the mechanics of RCM
hybrid voicing.
Before trying to use an AWM wave in an AFM
algorithm it is useful to turn off the AWM direct
output. This is not necessary for final voicing since
many voices use both the direct AWM sound and
the hybrid AWM/AFM combination. However it is
easier to understand the effect of the hybrid system
if the direct output of the AWM element is tem-
porarily turned off.
6. To turn off the AWM:
From: Voice Edit (JUMP #201)
Select: 7:OutSel (JUMP #208)
Press: F2 (E2) to select element 2.
Press: -1 three times to turn element output off.
Press: EXIT to return to the voice edit job direc-
tory
7. Select Algorithm 30 (default in INIT AFM
voice)
Note: Any algorithm will work with hybrid voicing.
However we will use the default algorithm 30 in
this demonstration, so this step is not necessary.
8. Set operators 1 and 2 to fixed frequency, zero
frequency.
Press: F3 to select the AFM job (JUMP #230)
directory
Select: 2:Osclltr (JUMP #235)
Press: Operator Select button 1 to choose oper-
ator 1
Select: Freq Mode and use -1+1 to change
"ratio" to "fixed"
Select: Coarse and use -1 +1 to change 1.0 to
0.00