Basic Structure of the DTX900
Reference
72
DTX900 Owner’s Manual
■
TECH
This effect radically changes the tonal characteristics by
using a filter and modulation.
■
MISC
This category includes effect types not included in the
other categories.
REV-X is a reverb algorithm developed by Yamaha. It pro-
vides high-density, richly reverberant sound quality, with
smooth attenuation, spread and depth that work together to
enhance the original sound. The DTX900 features two
types of REV-X effects: REV-X Hall and REV-X Room.
Each of the Effect Types has parameters that determine
how the Effect is applied to the sound. A variety of sounds
can be obtained from a single effect type by setting these
parameters. For information about the Effect parameters,
see below.
■
Preset settings for Effect parameters
Preset settings for parameters of each effect type are pro-
vided as templates and can be selected in the Effect Type
selection display. To get a desired effect sound, try first
selecting one of the Presets close to your imagined sound,
then change the parameters as necessary.
■
Effect parameters
Effect Type
VAR INS MEF
Description
RING
MODULATOR
✔
✔
✔
An effect that modifies the
pitch by applying amplitude
modulation to the frequency of
the input.
DYNAMIC
RING
MODULATOR
✔
✔
–
Dynamically controlled ring
modulation.
DYNAMIC
FILTER
✔
✔
✔
Dynamically controlled filter.
AUTO SYNTH
✔
✔
–
Processes the input signal into
a synthesizer-type sound.
ISOLATOR
✔
✔
✔
Controls the level of a speci-
fied frequency band of the
input signal.
SLICE
✔
✔
✔
Cuts the Voice sound into sep-
arate segments for special
rhythmic effects.
TECH MODU-
LATION
✔
✔
–
Adds a unique feeling of mod-
ulation similar to ring modula-
tion.
Effect Type
VAR INS
Description
TALKING
MODULATOR
✔
✔
Adds a vowel sound to the input sig-
nal.
PITCH
CHANGE
✔
✔
Changes the pitch of the input sig-
nal.
REV-X
Effect Parameters
NOTE
• Some parameters below may appear in different effect types with the
same name, but actually have different functions depending on the partic-
ular effect type. For these parameters, two or three types of explanations
are given.
Paramater
name
Descriptions
AEGPhs
Offsets the phase of the AEG.
AMDepth
Determines the depth of the amplitude modulation.
AMInvR
Determines the phase of the amplitude modulation
for the R channel.
AmpType
Selects the amplifier type to be simulated.
AMSpeed
Determines the amplitude modulation speed.
AMWave
Determines the wave of the amplitude modulation.
Analog
Adds the characteristics of an analog flanger to the
sound.
AtkOfst
Determines the amount of time that elapses between
the hitting of a pad (or playing of a key) and the start
of the wah effect.
AtkTime
Determines the attack time of the envelope follower.
Attack
Determines the amount of time that elapses between
the hitting of a pad (or playing of a key) and the start
of the compressor effect.
BitAsgn
Determines the degree to which the Word Length is
applied to the sound, and affects the resolution of the
sound.
Bottom
*1
Determines the minimum value of the wah filter.
ClickDensity
Determines the frequency at which the click sounds.
ClickLvl
Determines the click level.
Color
*2
Determines the fixed phase modulation.
CommonRel
This is one of the Multi Band Comp parameters and
determines the amount of time that elapses between
the releasing of a note and the end of the effect.
Compres
Determines the minimum input level at which the
compressor effect is applied.
CtrType
This one of the Control Delay parameters. When set
to “Normal,” the delay effect is always applied to the
sound. When set to “Scratch,” the delay effect is not
applied if both the Delay Time and Delay Time Offset
are set to “0.”
Decay
Controls how the reverb sound decays.
Delay
[For TEMPO DELAY MONO, TEMPO DELAY STE-
REO]
Determines the delay of the sound in note value. This
helps in setting rhythmic delays that match the timing
of the music.
[For TEC effects, CONTROL DELAY]
Determines the delay time.
