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KOACH · FUNs · Level 6 · Odds and ends · Lesson 4 of 7

diode(a−b+.25)

diodes= a - b + 0.25, or 0 where that is negative

diode(a-b) shifted up by 0.25: a passes once it is less than 0.25 below b. Only positive results matter: a negative result becomes 0, which limits a bipolar signal to unipolar values.

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 signal; b: the threshold.

OUTPUT RANGE

0..+1

USE IT FOR

A softer opening than diode(a-b): with b OFF a bipolar LFO passes from -0.25 up.

WATCH OUT

With b at 0 a bipolar LFO passes from −0.25 up, a little more than half its swing.

IN THE FACTORY PROGRAMS

In 3 FUN slots of the factory programs: GFUN2 1, FUN2 1, FUN1 1. GFUN2 and GFUN4 are the program's global FUNs.

MOST USED INPUTS (a, b)

LFO2, FUN42
ON, 0.501

WHERE THE OUTPUT GOES

PITCH src2 depth control4
AMP src2 depth control4
HIGH SHELF Shlf Amp src2 depth control4
2POLE LOWPASS LP Frq src2 depth control4
FUN4 b4

FIND THEM ON YOUR K2700

42 EDM PianoGFUN2 · a LFO2, b FUN4
647 9 1/2 Yard Basslayer 2 · FUN1 · a ON, b 0.50

HOW TO ON YOUR K2700 · 2046 Editor Template

The factory does not route diode(a-b+.25) 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 MWheel and Input b to 0.50.

    The LFO+ page of 2046 Editor Template, layer 1, the cursor on Input b (0.50)

  4. Move to Function and turn the Alpha Wheel to diode(a-b+.25).

    The LFO+ page of 2046 Editor Template, layer 1, the cursor on Function (diode(a-b+.25))

  5. Move the mod wheel: nothing happens in its first quarter; then the pitch rises, to 900 ct at the top, wheel − 0.50 + 0.25.

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