Yamaha Reface DX User manual

reface Reference Manual 1
Using this Reference Manual ........................................................................2
Edit Mode ........................................................................................................2
Changing detailed operator settings............................................................3
Operator Settings screen (page 1)..................................................................3
Operator Settings screen (page 2)..................................................................4
KSC (Keyboard Scaling) level setting (page 3)..............................................4
Setting the EG (envelope generator) ............................................................5
EG Level
EG Level Settings screen ................................................................................5
EG Rate
EG Rate Settings screen..................................................................................6
Setting the LFO...............................................................................................7
LFO screen (page 1).........................................................................................7
LFO PMD On/Off screen (page 2)....................................................................8
LFO AMD screen (page 3)................................................................................8
Setting the Pitch EG.......................................................................................9
PITCH EG Level screen (page 1).....................................................................9
PITCH EG Rate screen (page 2) ....................................................................10
PITCH EG On/Off screen (page 3).................................................................10
Troubleshooting...........................................................................................11
EN
Reference Manual

reface Reference Manual 2
Using this Reference Manual
By using Edit mode on the reface DX, you can make detailed settings for individual operators.
Please read this manual if you wish make detailed changes to Voices on the reface DX.
Edit Mode
In Edit mode, you can make detailed adjustments to Voice settings.
Edit mode is activated by pressing the [EDIT] button.
In Edit mode, you can use the [1] to [8] buttons from the VOICE SELECT/EDIT section as [OP1] to [OP4], [EG level], [EG
rate], [LFO], and [Pitch EG] buttons.
To leave Edit mode, press the [EDIT] button once again.
NOTE
To c h a n g e t h e a l g o r i t h m , u s e t h e [ A LGO] button from the FM section.

reface Reference Manual 3
Changing detailed operator settings
Set Operators 1 to 4 as follows.
1. Press the [EDIT] button to activate Edit mode.
2. Press one of the [OP1] to [OP4] buttons to select the operator you wish to set.
The setting screen for the corresponding operator is displayed.
3. If necessary, press the same button several times to select the required page from the setting screen. When a setting
screen contains multiple pages, they are indicated in the form “ ” (i.e., page 1 of 3 pages).
4. Adjust the operator’s settings by using the sliders and/or switches.
5. If necessary, you can also adjust other settings at this time.
For example, if you press the [OP2] button while page 3 from the Operator 1 Settings screen is displayed, page 3 from
the Operator 2 Settings screen is displayed.
Similarly, if you press the [EG level] or [EG rate] button while the Operator 2 Settings screen is displayed, you can make
EG adjustments for Operator 2.
6. When you have finished making settings, press the [EDIT] button once again to leave Edit mode.
Operator Settings screen (page 1)
1OP (operator) ON or Off Turns the operator on and off.
2MODE
Selects the frequency setting method.
Ratio
The frequency is set as a ratio with respect to the standard pitch.
This frequency is also displayed as a ratio when you press the
[FREQ] button.
Fixed
The frequency is fixed, regardless of which key is played.
This frequency is also displayed in Hertz (Hz) when you press the
[FREQ] button.
3FREQ (Frequency)
Specifies the frequency by using a number.
When MODE is set to
“Ratio”: 0.500 to 31.99
Specify a value with respect to the standard
value of 1.00. When this value is doubled,
the octave increases by one; when halved,
the octave drops by one.
This value is also displayed when you press
the [FREQ] button.
When MODE is set to
“Fixed”: 1. 0 0 0 t o 9 , 7 7 2 H z
Specifies the frequency in Hertz (Hz).
This value is also displayed when you press
the [FREQ] button.
4DTUNE (Detune) -64 to 0 to +63 Detunes the frequency set with “FREQ”. Slightly detuning the fre-
quency produces a chorus-like effect.
1234

reface Reference Manual 4
Operator Settings screen (page 2)
KSC (Keyboard Scaling) level setting (page 3)
With keyboard scaling, you can adjust the effect of the envelope based on the area of the keyboard being played. In this way, it is
possible to achieve a balance between tone and volume that is similar to that of acoustic instruments. The keyboard is divided in
two at the break point (fixed at C3 on the reface DX). The high-pitch side at the right is set by using the R Depth and the R
Curve; the low-pitch side at the left is set by using the L Depth and the L Curve.
1LEVEL 0 to 127
Sets the output level.
In the case of carriers, this changes the volume.
In the case of modulators, this changes the degree to which the carrier(s) are
modulated.
This value is also displayed when you press the [LEVEL] button.
2VEL.S (Velocity
Sensitivity) 0 to 127
Used to change the volume and/or tone based on how hard you play the keys.
There is no change when the setting is “0”. The higher the value, the greater the
degree of change.
3FB (Feedback) -127 (SQUARE) to
0 to +127 (SAW)
Selects the feedback level.
From “+1” to “+127”, the waveform changes from sine to sawtooth; from “-1” to
“-127”, it changes from sine to square.
At “0”, no feedback is applied and the waveform retains its normal sine shape.
This value is also displayed when you press the [FB] button.
4
KSC-Rate
(Keyboard
Scaling Rate)
0 to 127
Sets how the speed of the EG changes based on the area of the keyboard being
played. The higher the value, the faster the EG changes for the high-pitch side
compared with the low-pitch side.
1L Depth -127 to 0 to +127 Sets the degree of keyboard scaling at the left side of the keyboard. When set to “0”, no
keyboard scaling is applied.
2L Curve
LIN (Linear) The depth changes in a linear fashion from the break point to the left of the keyboard.
EXP (Exponential) The depth changes in an exponential fashion from the break point to the left of the key-
board.
3R Curve
LIN (Linear) The depth changes in a linear fashion from the break point to the right of the keyboard.
EXP (Exponential) The depth changes in an exponential fashion from the break point to the right of the
keyboard.
4R Depth -127 to 0 to +127 Sets the degree of keyboard scaling at the right side of the keyboard. When set to “0”,
no keyboard scaling is applied.
1234
1
LR
234
Break point (C3)
0Depth
+127
-127
LIN LIN
LIN LIN
EXP
EXP
EXP
EXP
C2 C5
Break point (C3)
L Curve R Curve

reface Reference Manual 5
Setting the EG (envelope generator)
You ca n ad ju st t he shape of the envelo pe s ap pl ied to the o perators by using the [EG level] and [EG
rate] buttons. Volumes and modulation degrees are set on the EG Level screen; rates of change
are set on the EG Rate screen.
EG levels can be set between “0” (minimum) and “127” (maximum) for each operator.
For carriers, these levels set the volume; for modulators, they set the degree of modulation.
1. Press the [EDIT] button to activate Edit mode.
2. Press the [EG level] button.
The EG Level Settings screen is displayed.
3. If necessary, press the [EG level] button several times to switch between operators.
4. Change the settings for Level 1 to Level 4 by using the sliders.
5. If necessary, alternately use the [EG level] and [EG rate] buttons to adjust the overall shape of the envelope.
6. When you have finished making settings, press the [EDIT] button once again to leave Edit mode.
EG Level Settings screen
EG Level
1Level 1
0 to 127
Attack level
2Level 2 Decay level
3Level 3 Sustain level
4Level 4 Release level
For settings other than “0”, the sound will stop when it reaches the Level 4 setting.
Level 1
Level 2
Level 3
Level 4
Level
Rate 1 Rate 2 Rate 3 Rate 4 Time
Key on Key off
1234

reface Reference Manual 6
EG rates can be set between “0” (slowest) and “127” (fastest) for each operator.
1. Press the [EDIT] button to activate Edit mode.
2. Press the [EG rate] button.
The EG Rate Settings screen is displayed.
3. If necessary, press the [EG rate] button several times to select the operator you wish to set.
4. Change the settings for Rate 1 to Rate 4 by using the sliders.
5. If necessary, alternately use the [EG level] and [EG rate] buttons to adjust the overall shape of the envelope.
6. When you have finished making settings, press the [EDIT] button once again to leave Edit mode.
EG Rate Settings screen
EG Rate
1Rate 1
0 to 127
Attack rate
2Rate 2 Decay rate
3Rate 3 Sustain rate
4Rate 4 Release rate
1234

reface Reference Manual 7
Setting the LFO
You ca n set the L FO (low freq uency oscillator ) to ch ange the waveform used to var y the sound and
apply effects such as vibrato, tremolo, and wah.
1. Press the [EDIT] button to activate Edit mode.
2. Press the [LFO] button.
The LFO Settings screen is displayed.
3. If necessary, press the [LFO] button several times to switch between this screen’s pages.
4. Adjust the LFO by using the sliders and/or switches.
5. When you have finished making settings, press the [EDIT] button once again to leave Edit mode.
LFO screen (page 1)
1 WAVE
Selects the LFO waveform.
SIN Sine wave
TRI Triangular wave
SAW U Ramp-up type sawtooth wave
SAW D Ramp-down type sawtooth wave
SQ Square wave
S&H8 Sample & Hold 8 wave
Values are sampled each 1/8th of the interval set using “SPEED”.
S&H Sample & Hold wave
Values are sampled at the interval set using “SPEED”.
2SPEED 0 to 127
Sets the LFO speed.
When “WAVE” is set to “S&H” or “S&H8”, this parameter deter-
mines the interval at which values are sampled.
3DELAY 0 to 127 Sets how long it takes after pressing a key for the LFO to start.
4PMD
(pitch modulation depth) 0 to 127 Sets the degree to which the pitch is affected by the LFO (vibrato).
Sample & Hold (S&H)
Sample & Hold waves are formed by taking (sampling)
a value from a noise wave at a certain time and keeping
(holding) that value until the next one is taken. In this
way, it is possible to create a wave that changes in a
random fashion.
1234
Noise wave
Samples
S&H
output
Interval set using the
LFO’s “SPEED”
parameter

reface Reference Manual 8
LFO PMD On/Off screen (page 2)
LFO AMD screen (page 3)
1Operator 1
LFO PMD On/Off
ON and off Tu r n s L F O P M D o n a n d o f f.
When turned on, the PMD settings from the LFO screen (page 1) are active.
2Operator 2
LFO PMD On/Off
3Operator 3
LFO PMD On/Off
4Operator 4
LFO PMD On/Off
1
Operator 1 AMD
(amplitude modula-
tion depth)
0 to 127 Sets the degree to which the amplitude is affected by the LFO (tremolo,
wah).
2Operator 2 AMD
3Operator 3 AMD
4Operator 4 AMD
1234
1234

reface Reference Manual 9
Setting the Pitch EG
The operators’ pitches can be changed using an envelope. As with the normal EG, levels set the
degree to which the pitches are affected; rates set the rate of change. These values are common to
all operators.
1. Press the [EDIT] button to activate Edit mode.
2. Press the [Pitch EG] button.
The Pitch EG Settings screen is displayed.
3. If necessary, press the [Pitch EG] button several times to switch between this screen’s pages.
4. Set the envelope by using the sliders.
5. When you have finished making settings, press the [EDIT] button once again to leave Edit mode.
PITCH EG Level screen (page 1)
1Pitch EG Level 1
-48 to 0 to +48
Adjust the Pitch EG levels.
The standard pitch is represented by “0”, and you can adjust the pitch
upward and downward by 48 semitones (4 octaves).
2Pitch EG Level 2
3Pitch EG Level 3
4Pitch EG Level 4
Level 1
Level
Rate 1 Rate 2 Rate 3 Rate 4
Time
Key on Key off
0
+48
-48
Level 3
Level 2
Level 4
1234

reface Reference Manual 10
PITCH EG Rate screen (page 2)
PITCH EG On/Off screen (page 3)
1Pitch EG Rate 1
0 to 127 Adjust the Pitch EG rates.
The higher the value, the faster the pitch changes.
2Pitch EG Rate 2
3Pitch EG Rate 3
4Pitch EG Rate 4
1Operator 1
Pitch EG On/Off
ON and off Turn the Pitch EG on or off for each operator.
2Operator 2
Pitch EG On/Off
3Operator 3
Pitch EG On/Off
4Operator 4
Pitch EG On/Off
1234
1234

reface Reference Manual 11
Troubleshooting
If this instrument does not behave as expected—for example, not producing the correct sound or
producing no sound at all—please refer first of all to “Troubleshooting” from your Owner’s Manual
(page 46). Many issues can also be resolved by doing a Factory Reset (page 40). If any specific
issue should persist, however, please contact your Yamaha dealer or a service center (see the
back of this booklet).
Issue Model(s) Suspected cause Solution
No sound is pro-
duced.
The instrument
stopped producing
sound when a setting
was changed.
reface DX The carrier level is set to 0.
Press the [LEVEL] button from the FM
section, and confirm whether the carrier
level is set to “0”. If so, increase the car-
rier level.
reface DX All carriers are turned off.
In Edit mode, confirm whether the carrier
is turned on or off. If the carrier is off, turn
it on and ensure that its level is suffi-
ciently high.
reface DX The carrier’s Fixed fre-
quency value is too low.
In Edit mode, confirm whether the carrier
mode is set to “Fixed” and the “FREQ”
value is too low. If so, increase the
“FREQ” value.
Notes continue to
play without end.
Notes started to play
without end when a
setting was changed.
reface DX Rate 4 for the carrier’s EG
is too low.
Raise Rate 4 for the EG.
Alternatively, select a different Voice to
stop the sound.
Manual Development Department
© 2015 Yamaha Corporation
Published 05/2015 PO-A0