APPLIED ACOUSTICS SYSTEMS STRINGSTUDIO Manual do Utilizador descarregar pdf (Página 30)

30 Parameters

string length is that determined by the Position knob. This type of geometry is found in instruments

such as the piano where hammers excite strings at about 1/7 of their length.

Note that both the exciter and damper position can be modulated with the pitch signal or ve-

locity signal received from the keyboard. The modulation will be relative to the value set by the

exciter or damper Position knobs.

Pickup

The Pickup module reproduces the functioning of magnetic pickups such as found in electric

guitars or electric pianos. This type of transducer is sensitive to the motion of a nearby metallic

string. When a string vibrates near a pickup, the latter outputs an oscillating signal at the same

frequency as that of the string and proportional to the string velocity.

The only parameter to adjust in the Pickup module is its position relative to the string which

affects the waveform of its output.

Note that usually, the signal from a pickup is sent directly to an external device such as an

ampliﬁer. In other words, the body of the instrument does not play any role in the radiation of

the sound. In String Studio, this behavior is obtained when the Pickup module is on and both the

Filter and Body modules are switched off. When the Pickup, the Filter and Body modules are on,

the output signal from the Pickup is ﬁltered by the Filter and Body modules. Finally, when the

Pickup module is switched off, the output signal from the String is sent directly to the Filter and

Body module.

4.2.7 The Distortion module

The Distortion module implements a simple distortion effect, such as that

found in electric guitar distortion pedals for example. Different distortion algo-

rithms, ranging from mellow to metal, can be selected from the Type drop-down

menu.

The Drive knob is a gain control used to adjust the level of the signal at the

input of the Distortion module and hence the amount of saturation introduced

in the signal. The color of the signal after the distortion algorithm has been

applied can be adjusted using the Tone knob. In its leftmost position, high

frequencies will be attenuated in the signal while in its rightmost position low

frequencies will be ﬁltered out from the signal. In its center position, the signal

will be left unchanged. Note that this control can be set to its middle position by

clicking on the small LED above the knob. Finally, the Level knob is used to control the amplitude

of the signal at the output of the Distortion module.

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 66 67

Sem comentários

APPLIED ACOUSTICS SYSTEMS STRINGSTUDIO Manual do Utilizador Página 30