Instrument
Scope
What you hear, after the effects. Wave shows the shape of the sound, Spectrum shows which pitches are loud. Hold a note and turn a knob to watch it change.
Effects
Effects change the sound after the instrument, in this order: chorus, phaser, tremolo, crusher, tone, delay, reverb, then the output volume (Out). Turn a Mix or Depth to 0 to switch that effect off.
Out
Final level of everything you hear, after all the effects.
Loudness of the whole app. It does not change the sound, only how loud it is. 0 = silent.
Reverb
A virtual room. It adds the echoes of the walls, so the sound seems further away and wider.
How much room sound is blended in. 0 = bone dry, 0.2 for leads, 0.6+ for pads and ambience
How long the room rings. 0.5s = small booth, 2s = hall, 6s+ = cathedral wash
Delay
Repeats of the sound, in time. Time sets the gap between repeats, Feedback how many you hear.
Gap between echoes. 0.08s = slapback, 0.25s = rhythmic, 0.5s+ = dub spaces
How many repeats you hear. 0 = one echo, 0.5 = a trail, 0.8+ = nearly endless
Loudness of the echoes. Turn to 0 to switch the delay off, e.g. for drums and bass
Tone
Shapes the whole sound: Cutoff removes the highs, Distortion adds drive and grit.
Low-pass: removes everything above this pitch. Sweep it down to 500 Hz for a muffled, underwater tone
Drive and crunch. 0.1 = warm saturation, 0.3 = gritty, 0.7+ = fuzz. Great on bass and leads
Chorus
Copies of the sound, slightly out of tune and late, played together. It makes the sound wide and shimmery.
Speed of the shimmer. 0.5 Hz = slow swirl, 2 Hz = classic 80s chorus, 6 Hz+ = wobbly leslie
How much of the widened copy you hear. 0 = off (keeps drums tight), 0.5 = wide stereo pad
Phaser
A sweeping filter that cuts moving notches in the sound. It gives the 80s whoosh on pads and chords.
Speed of the sweep. 0.2 Hz = slow whoosh, 1 Hz = classic 80s phaser, 4 Hz+ = fast warble
How much phaser you hear. 0 = off, 0.5 = clear sweep, 1 = full swirl. Great on pads and chords
Tremolo
The volume goes up and down in a loop. It gives a pulse or a shake.
Speed of the volume wobble. 4 Hz = vintage keys, 8 Hz = fast shake, 12 Hz+ = buzzy flutter
How deep the wobble goes. 0 = off, 0.5 = gentle pulse, 1 = the sound fades fully in and out
Crusher
Lowers the bit depth, which turns the smooth wave into steps. That gives a buzzy, lo-fi digital grit.
Bit depth. 10 = clean, 6 = old computer grit, 4 = crunchy, 2 = harsh and broken. Turn it down to hear the effect
How much crushed sound you hear. 1 = fully crushed, 0.5 = lo-fi blend, 0 = off. Only matters when Bits is turned down
Virtual Keyboard
Hold one or more keys. The arp plays them one after the other, in time. Turn HOLD on to lift your fingers and keep the pattern going. Tap a step light to mute that step. Double tap a light to make it louder.
Speed of the beat. 90 is slow and heavy, 120 is pop, 140 and more is fast. TAP: tap four times on the beat and the knob follows.
How long each step sounds. 20% is short and dry. 90% is almost legato. Accented steps get a bit more.
Shuffle. Every second step comes a little late. 0% is straight. 30% is a bounce. 60% is a strong shuffle.