KOACH · LFOs · Lesson 1 of 7

The shapes

ShapeShape · 46 waves

An LFO repeats one shape over and over. The K2700 offers 46: sines, squares and triangles at four sizes, each bipolar or one-way, rising and falling saws, a random sample and hold, and staircases of 3 to 12 steps.

SEE IT MOVE

SCOPE · LAST 2 S

THE 46 SHAPES · CLICK ONE

0.00

Computed in your browser with KINSPIRATION's LFO and ASR engine, frame by frame.

WHAT TO KNOW

THE FIELD

Shape, on the LFO page, for LFO1 and LFO2 alike. None stops the LFO: its output stays at 0.

RANGE

The bipolar shapes swing from −1 to +1; the '+' shapes from 0 to +1. The 1/4, 1/2 and 3/4 shapes are smaller: in KOACH, the full shape at a quarter, a half or three quarters of its swing.

USE IT FOR

Sine and Triangle for vibrato and slow sweeps; Square for trills and switching between two settings; the saws for repeated rises or falls; Smp+Hold for random steps; the staircases for arpeggios on a pitch depth.

WATCH OUT

A '+' shape moves one way only: with a positive depth it can only raise the destination. A Square jumps at once, which clicks on a level; a Sine or a Triangle does not.

IN THE FACTORY PROGRAMS

4059 LFOs in use in 1230 factory programs: LFO1 in 3041 layers, a per-voice LFO2 in 391 layers and a global LFO2 in 627 programs. Sine alone is 1664 of them.

MOST USED SHAPES

Sine1664

Triangle920

+Sine530

+Triangle166

Square121

+5 Step70

1/2 Tri65

+4 Step55

1/4 Sine52

+Square46

BY FAMILY

Sines2384

Triangles1200

Staircases191

Squares186

Saws55

Smp+Hold43

FIND THEM ON YOUR K2700

675 Lucid Brasslayer 1 · LFO1 Sine 2 → 5 Hz by ASR1 · → PITCH

691 Dyn Orch Trumpetslayer 1 · LFO1 Triangle 5 → 2.6 Hz by ASR1 · → PITCH

676 Brass Fanfarelayer 3 · LFO1 +Sine 0.95 Hz · → PITCH

741 Ocarinalayer 1 · LFO1 Square 3.2 → 5.6 Hz by MIDI14 (Knob 5) · → AMP

1039 Insta - Spookylayer 5 · LFO2 +5 Step 0 → 6.4 Hz by ON · → PITCH

1512 Modular ChitChatlayer 1 · LFO1 Smp+Hold 10 Hz · → an oscillator's pitch

HOW TO ON YOUR K2700 · 675 Lucid Brass

Hear the shapes on a factory program: Lucid Brass's vibrato is LFO1, a Sine. Change its shape and play.

In Program mode choose 675 Lucid Brass: press KEYPAD, type 675 and press ENTER.
Press EDIT, then MORE until the LFO+ soft button shows, and press it. Layer 1's LFO1 is a Sine, from 2.00 Hz (MnRate) to 5.00 Hz (MxRate) as ASR1, its RateCt, rises.
With the cursor on Shape turn the Alpha Wheel, here to Triangle, and play a note after each change: the vibrato takes the new shape.
Where it goes: press MORE, then DSP MOD. On the Pitch row Source 2 is LFO1, with ASR1 as its Depth Ctl and a Max Depth of 8 ct: the vibrato fades in after each key.
Press EXIT and answer NO to leave the factory program as it was, or SAVE to keep your version on a USER ID.