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KOACH · FUNs · Level 4 · Curves · Lesson 7 of 10

warp2(a,b)

shapes and warps= two straight slopes meeting at |b| = 1 - a, where the output is a; mirrored for negative b

Slant-square: a bends b's straight line into two slopes, turning a sawtooth into variants of a square.

SEE IT MOVE

SCOPE · LAST 2 S
THE MAP · OUTPUT FOR EVERY a AND b
a0.00
b0.00
OUTPUT0.00

Computed in your browser with KINSPIRATION's FUN engine. Drag on the map to try any a and b.

WHAT TO KNOW

INPUTS

a: the bend, a constant 0..1 (0.5 leaves b straight); b: the signal.

OUTPUT RANGE

-1..+1

USE IT FOR

Squaring an LFO softly (a near 0.9: steep in the middle, flat at the ends); a dead-zone-like curve (a near 0.1: flat in the middle, steep at the ends); bending a controller's response either way with one setting.

WATCH OUT

At a = 0.5 nothing changes; the further a is from 0.5, the sharper the bend.

IN THE FACTORY PROGRAMS

In 1 FUN slot of the factory programs: FUN1 1. GFUN2 and GFUN4 are the program's global FUNs.

MOST USED INPUTS (a, b)

ASR1, ASR21

WHERE THE OUTPUT GOES

FIND THEM ON YOUR K2700

447 Cosmic Sus Pedallayer 2 · FUN1 · a ASR1, b ASR2

HOW TO ON YOUR K2700 · 2046 Editor Template

The factory does not route warp2(a,b) to a sound on its own: set one up on 2046 Editor Template and hear it on the pitch.

  1. In Program mode choose 2046 Editor Template, a plain one-layer program to build on (KEYPAD, 2046, ENTER).

    Program mode with 2046 Editor Template

  2. Press EDIT, then MORE and DSP MOD. On the Pitch row set Source 1 to FUN2 and its Depth to 1200 ct: FUN2's result, −1 to +1, now bends the pitch up to an octave either way.

    The DSP MOD page of 2046 Editor Template, layer 1, the cursor on Depth (1200 ct)

  3. MORE, then LFO+. On the FUN2 row set Input a to 0.16 and Input b to MWheel.

    The LFO+ page of 2046 Editor Template, layer 1, the cursor on Input b (MWheel)

  4. Move to Function and turn the Alpha Wheel to warp2(a,b).

    The LFO+ page of 2046 Editor Template, layer 1, the cursor on Function (warp2(a,b))

  5. Move the mod wheel: most of its travel moves the pitch only a little, 192 ct at 84 % of the way; the last stretch sweeps it the rest of the way, to an octave. A dead zone for the wheel.

  6. Press EXIT and answer NO to leave the factory program as it was, or SAVE to keep your version on a USER ID.