Operation Manual

4.7 Reverb 35

Finally, the Rate knob controls the frequency or rate of the modulation of the

center frequency of the ﬁlter. In the case of the Wah Wah effect, turning this knob

clockwise increases the rate of the modulation. In the case of the Auto Wah ﬁlter,

this knob controls the time constant of the envelope follower. Turning this knob

clockwise decreases the time constant, or in other words the reaction time, of the

envelope follower.

4.7 Reverb

The Reverb module is used to recreate the effect of reﬂec-

tions of sound on the walls of a room or hall. These reﬂections

add space to the sound and make it warmer, deeper, as well as

more realistic since we always listen to instruments in a room

and thus with a room effect. The Reverb module is switched

on or off by clicking on the green LED in the upper right cor-

ner of the module.

The Reverb drop down menu is used to choose between different reverb al-

gorithms representing different types of rooms or halls. Each algorithm can be

adjusted with the knobs located at the bottom of the module. The Mix knob is used

to set the relative amount of “dry” and “wet” signal which is related to the proxim-

ity of the sound source. The Decay is used to control the reverberation time of the

room.