Operation Manual

2.4 Tutorial 4 Playing with Acoustic Objects 43
Figure 21: Tutorial 4, step 1
Playing
The Noise Mallet module can be triggered by the output signal from another module, but it can
also be triggered manually by clicking on the trig button from its front panel (which is how we
will use this object for the moment). The stiffness of the mallet is adjusted with the stiffness knob
on the module front panel, while the amplitude of the impact is determined by the strength knob.
To obtain a soft mallet, made out of cotton for example, turn the stiffness knob to the left; for a
harder one, which could be made out of wood, turn this knob to the right. To hear a sound, set the
stiffness and the strength in the middle and click on the trigger knob. What you hear is the impact
signal from the mallet and a certain amount of superimposed noise. You only hear a faint sound
because the mallet is not hitting anything for now. Try different settings on the stiffness knob to
hear the mallet change. For now, the two little knobs at the bottom of the module are not connected
to anything, so they have no effect on the sound.
Step 2: Add a plate
Description
We will now add a Plate module and listen to the sound it produces when hit by a Noise Mallet.
Construction
• In the Resonators section of the module library, select a Plate module and place it in the
construction area.
• Select and delete the wire connecting the Noise Mallet to the Audio Out.
• Pull a wire between the output of the Noise Mallet and the second input of the Plate.
• Select a Constant module from the Generators section of the library area. By default the
Constant module outputs a value of 1 (you can check this by double-clicking on the module).
We will keep this value.
• Pull a wire between the output of the Constant module and the first input of the Plate
module. This input determines if external dampers are lowered on the Plate or not. A value
of 0 lowers the dampers and a value of 1 keeps them above the Plate.
• Select a Level module from the output folder in the In/Out section of the Browser.