APPLIED ACOUSTICS SYSTEMS Strum Acoustic GS-1, Руководство пользователя

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50 Parameters
knob. This parameter is used to control the amount of high frequencies in the resulting sound;
turning this knob to the left decreases the amount of high frequencies relatively to low frequencies
while turning it to the right increases it.
6.2.5 The Palm Module
Palm muting is a technique used by guitar players to muffle the strings slightly while
simultaneously playing the strings with the picking hand. It is obtained by letting the
side of the picking hand touch the strings just before the bridge.
In Strum , palm muting is achieved by using special strumming keys as explained
in section 3.2. The resulting sound of this effect can be adjusted with the help of the Tone knob.
This parameter is used to control the amount of high frequencies in the resulting sound; turning
this knob to the left decreases the amount of high frequencies relatively to low frequencies while
turning it to the right increases it.
6.2.6 The Global Module
The Velocity knob is used to decrease or increase the modulation effect from the
MIDI velocity signal. This parameter affects all the parameters modulated by the MIDI
velocity.
6.2.7 The Body Module
The role of the body or soundboard of an acoustic guitar is to radiate the vibra-
tion energy from the strings. The body also adds a filtering effect to the vibration
from the string which depends on its size and shape. The body of an acoustic guitar
also includes an air cavity which boosts low frequencies.
The Body module of Strum includes only one control in the main view. The
Tone knobs is used to control the amount of high frequencies radiated by the body
which affects the timbre of the instrument. Turning this knob clockwise increases
the decay time of high frequencies compared to that of low frequencies while turn-
ing it anti-clockwise decreases it.
6.3 The Equalizer Module
The EQ module provides equalization over the low, mid, and high frequency bands and is switched
on
or
off
using the
On
button. It is composed of a low-cut filter, a low shelf filter, a peak filter, and
a high shelf filter in series.