a−b
sums and mixes= a - bSubtracts b from a, so the second input works backwards. With a OFF and a unipolar b, the result runs from 0 down to -1 as b rises.
SEE IT MOVE
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 source kept as it is; b: the source (or constant) taken away.
OUTPUT RANGE
-1..+1, clamped
USE IT FOR
Turning a controller round (OFF - MWheel); taking a fixed amount off a source; velocity minus a slider (AttVel - MIDI23: the slider lessens velocity's effect).
WATCH OUT
The difference can reach ±2 and is clamped to ±1: a full a minus a full negative b pins at +1, and −ON − FUN1 moves only while FUN1 is negative.
IN THE FACTORY PROGRAMS
In 101 FUN slots of the factory programs: FUN2 53, FUN3 19, FUN4 15, FUN1 13, GFUN4 1. GFUN2 and GFUN4 are the program's global FUNs. 29 of these slots have both inputs OFF, unused slots that keep this equation: its real uses are 72.
MOST USED INPUTS (a, b)
WHERE THE OUTPUT GOES
FIND THEM ON YOUR K2700
HOW TO ON YOUR K2700 · 625 Liquid T Lead
Liquid T Lead uses a-b on its layer 1: see it, then where it goes.
In Program mode choose 625 Liquid T Lead (KEYPAD, 625, ENTER).
Press EDIT, then MORE and LFO+. The FUN2 row: Input a -ON, Input b FUN1, Function a-b.
Where it goes: MORE, DSP MOD. On the Pitch row Source 1 is FUN2, with a Depth of -1000 ct.
Hold a note: the Pitch row follows FUN2, -ON - FUN1.
Press EXIT and answer NO to leave the factory program as it was, or SAVE to keep your version on a USER ID.