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Effects
Shape a sound with an EQ, a delay, a reverb and more, and hear what each one does.
An effect is a block that sits in the cable between a sound and the mixer and changes the sound that goes through. Put a reverb after a piano and the piano seems to stand in a room; put an EQ after a bass and you make it warmer or thinner.

Read the chain from left to right: the bass block makes the sound, tone (an EQ) shapes it, echo (a delay) repeats it, room (a reverb) puts it in a space, and the mixer takes the result.
Add an effect#
- Press the + EQ button on a block that makes sound: AMPLE adds an EQ block after it, connects it and opens its controls.
- Or add any effect from the Library on the left, and connect it yourself: the sound goes into its
inport and comes out ofout.
The advanced controls#
Every effect has an Advanced button that opens a panel with knobs and a picture of what the effect does.

Turn a knob, and the curve follows. To listen while you turn, use Build and use input: it makes the sound of the block before the effect available in the panel, so you hear the effect on it.
The usual effects#
| Effect | What it does | Its main settings |
|---|---|---|
| EQ | turns the low, middle or high of a sound up or down | low, mid, high in dB |
| Filter | removes the highs (lowpass) or the lows (highpass) | type, cutoff in Hz |
| Delay | repeats the sound after a short time | time in ms, feedback, mix |
| Reverb | puts the sound in a room | size, decay, mix |
| Compressor | evens out loud and soft parts | threshold, ratio, attack, release |
| Distortion | makes the sound rougher | drive |
Many effects (the delay, the reverb) have a mix setting: how much of the changed sound you hear next to the original. An EQ or a filter has no mix: it changes everything that goes through. A good rule is to start low and turn it up until you notice it, then back a little.
Switch an effect off#
enabled off keeps the block in the song but lets the sound pass untouched. It is the quickest way to check whether an effect improves anything: switch it off, build, listen.
In the text#
eq tone stable@1.0 {
low 4 dB
from bass.audio -> in
}
delay echo stable@1.0 {
time 375 ms
feedback 35%
mix 28%
from tone.out -> in
}
reverb room stable@1.0 {
size 45%
decay 50%
mix 22%
from echo.out -> in
}
Next: the whole song on one timeline, in The arrangement.