Yamaha DX27S Gebruikershandleiding - Pagina 14
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This rather metallic voice effectively demonstrates
how fractional modulator-to-
VOICE 4:
carrier frequency ratios can create interesting bell-like sounds.
We'll use ALGO-
FM BELLS
RITHM 6, in which OP4 simultaneously modulates the carriers OP1, OP2 and OP3.
DATA NAME:
2/7
BELLS
DATE
:
NUMBER
:
PROGRAMMER
:
ЈАМЕ |
0] の |
|хвоятим| Feeosac |
|чвоялм| гееоваск
AE
| Amo | SYNC | Pitch |АМРШТИСЕ| EG BIAS |қ
|
MODULATION SENSITIVITY
| VELOCITY
|
е
~
|" 12 |2 | #1] #12
то
lsl2ge|1 0 [s
|» | о | o |
BE BE БЕТ TDI е жен 7 7
pice ota tte
te te E ЭЯ И БЕН ЖЕ
ーー
meo пят ЕЕ [aR Join
Jou — oz
lmm
louruveulaAre
[Ей |
|
OSGL2TOR
|
ENVELOPE GENERATOR
Se
KEYBOARD SCALING
POLY MONO|PITCH BEND
PORTAMENTO
FOOT SW
=
RANGE
à
Ef
ASSIGN
| PITCH [AMPLITUDE] PITCH [AMPLITUDE|PITCH
ВІАЅТ EG BIAS |
oly
Т
РА
The basis of this voice is the addition of the outputs from the three carriers. Note 3
that each of the three carriers is set to a different frequency: OP1 to 2.00, OP2 to
1.00, and OP3 to 0.50. Thus, the carriers are all set one octave apart: OP3 is the
lowest, OP2 is one octave higher than OP3, and OP1
is one octave higher than
OP2. OP 4 is set to the fractional frequency ratio of 5.65 so as to produce a bell-like
waveform with each operator, although at a different frequency ratio with each.
The result is an extremely complex waveform which is characteristic of metallic
bells. You can have some fun with this voice by trying out different fractional values
for the OP4 frequency ratio—each will produce a completely different sound.
No vibrato or other effects settings have been provided for FM BELLS because they
don't seem to sound "right" with this type of voice. You're free to experiment, of
Course, so have fun!
13