User Manual

SCREAM 4 SOUND DESTRUCTION UNIT
809
There are five controls in this section, with the following functions:
Description of the various Damage Type algorithms
Here follows a basic description of the ten Damage Types available, and what parameters the P1/P2 knobs control
for each type:
|
Parameter
|
Description
Damage button This switches the Damage section on or off.
Damage Control knob This controls the input gain which in turn determines the amount of damage inflicted. The
higher the value, the more destruction!
When raising the Damage Control you may need to lower the Master level to maintain the
same output level (and vice versa).
Damage Type knob This selects the type of effect - see the table below for a description of the available
damage methods.
P1/P2 knobs The functionality of these knobs vary according to the selected Damage Type - see the
table below for a description.
|
Type
|
Description
Overdrive This produces an analog-type overdrive effect. Overdrive is quite responsive to varying dynamics. Use
lower Damage Control settings for more subtle “crunch” effects.
- The P1 knob controls the basic tone of the effect. Turn clockwise for a brighter sound.
- The P2 knob controls Presence. Presence boosts frequencies in the high midrange
before the distortion
stage which in turn affects the character of the distortion. Turn clockwise for more Presence boost.
Distortion Similar to Overdrive, but produces denser, thicker distortion. The distortion is also more “even” across the
Damage Control range compared to Overdrive.
- The P1/P2 knobs control Tone and Presence, respectively - see Overdrive for a description.
Fuzz Fuzz produces a bright and distorted sound even at low Damage Control settings.
- The P1/P2 knobs control Tone and Presence, respectively - see Overdrive for a description.
Tube This emulates tube distortion.
- The P1 knob controls Contour, which is somewhat like a high pass filter, changing the tone and character
of the distortion.
- The P2 knob controls Bias, which changes the “symmetry” of the tube distortion. Setting this to the min-
imum or maximum value will produce asymmetrical distortion (typical of a real-life tube amplifier), while a
12 o’clock setting will produce symmetrical distortion (odd harmonics only).
Tape This emulates the soft clipping distortion produced by magnetic tape saturation and also adds compres-
sion which adds “punch” to the sound.
- The P1 knob controls Speed, which simulates tape running at different speeds. The higher the Speed
setting the more of the original high frequency material in the signal. Turn clockwise for a brighter sound.
- The P2 knob controls the amount of Compression. Turning the knob clockwise increases the compres-
sion ratio.
Feedback This effect combines distortion in a feedback loop which can produce many interesting and sometimes
unpredictable results. Feedback is basically when a sound source is fed back to itself. An open micro-
phone picking up sound from a nearby loudspeaker that is also being used to amplify sound from the mi-
crophone will produce a feedback loop with the associated typical howling. For this effect the Damage
Control knob controls the gain of the feedback loop.
- The P1 knob controls Size, which could be described as the “length” (i.e. the distance between the micro-
phone and the loudspeaker in the above example) of the feedback loop.
- The P2 knob controls Frequency, which for this effect determines which overtones will “howl”.
Modulate Modulate first multiplies the signal with a filtered and compressed version of itself, and then adds distor-
tion. This can produce resonant, ringing distortion effects.
- The P1 knob controls Ring, which is the resonance of the filter. Turn clockwise for more pronounced
ringing effects.
- The P2 knob controls Frequency, which is the filter frequency. Turn clockwise to raise the filter frequency
which generally produces a sharper, more piercing effect.