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MZ-2000 MIDI Implementation
4.8.6.13 Auto Wah
Specifications
TypeID FXID_AWAH = 0241H
Available Part DSP
I/O 1/1
Parameter List
ParaID Parameter Bit*Len Value-Range Value-Meaning
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
0000 Fx Name 7*16 20H - 7EH -
0001 Bypass 1 0 - 1 0...Bypass
1...Effect
0002 FilterTye 1 0 - 1 0...BPF
1...LPF
0003 Freq 7 0 - 127 0 - 127
0004 Resonance 7 0 - 127 0 - 127
0005 Sens 7 0 - 127 0 - 127
Operation
The effector has the same basic built-in filter as Wah. The filter frequency shift element is the
input signal level envelope, so the wah effect is applied automatically in accordance with key-
board play.
Both high-speed and low-speed response to the input signal are provided, and these cannot be
adjusted.
1. Bypass
Effector function enable/disable. Selecting bypass causes the input signal to be output as-is.
2. FilterType
Either BPF (Band Pass Filter) or LPF (Low Pass Filter) can be selected as the filter type.
Using BPF outputs only narrow band signals, so the change in the tone is great.
3. Freq
When BPF is selected, this parameter controls the mid-range equalizer center trigger fre-
quency. When LPF is selected, this parameter controls the mid-range equalizer trigger fre-
quency.
4. Resonance
Resonance of the wah effect.
5. Sens
Input signal sensitivity. The greater the value, the greater the change.
Preset List
No Preset Name
00 Narrow LPF
01 Mid Narrow
02 Quick Follow Wide
03 Dull Follow Wide
04 Dull Wide LPF
05 Mild LPF
4.8.6.14 Distortion
Specifications
TypeID FXID_DIST = 0300H
Available Part DSP
I/O 1/1
Parameter List
ParaID Parameter Bit*Len Value-Range Value-Meaning
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
0000 Fx Name 7*16 20H - 7EH -
0001 Bypass 1 0 - 1 0...Bypass
1...Effect
0002 Type 4 0 - 4 0...Crnch
1...OD
2...Dist
3...Metal
4...Fuzz
0003 Drive 7 0 - 127 0 - 127
0004 Tone 7 0 - 127 0 - 127
0005 NG.Thresh 7 0 - 127 0 - 127
0006 NG.Release 7 0 - 127 0 - 127
0007 Level 7 0 - 127 0 - 127
Operation
This effector amplifies the input signal and limits the wave height to produce distortion. In addi-
tion to electric guitar tones, this effect can also be applied to bass, electric piano, organ, reed
synth, drum, vocal, and other tones.
This effector also has a number of built-in algorithms for different characteristics, which can be
selected with the parameters.
This effector also has an internal noise gate. When an externally input signal is passed through this
effector, it may be desireable to perform a noise gate operation earlier than the externally input
noise gate. This can be accomplished by changing the settings of the distortion effector's indepen-
dent noise gate.
1. Bypass
Effector function enable/disable. Selecting bypass causes the input signal to be output as-is.
2. Type
Distortion type
o Crnch (Crunch)
Light distortion
o OD (Overdrive)
Warm distortion
o Dist (Distortion)
Hard and straight distortion
o Metal
Metallic distortion with enchanced low and high ranges
o Fuzz
Fuzz sound often heard in music from the late 60's and early 70's
3. Drive
Amplification factor. The maximum amplification factor depends on the selected Type. Noth-
ing is sounded when this parameter is 0.
4. Tone
Tone quality. A larger tone results in a brighter tone.
5. NG.Thresh
Threshold level of the internal noise gate. Output is muted whenever the input signal drops
below the level specified by this parameter.
6. NG.Release
Internal noise gate gate close time when muting.
7. Level
Output level.