ADLS D,$x \ <  x h X D 0  x d T @ ,   |lXH8(p`P<(p`L<,|l\H8(t`P@0  tdTD4$xT\OIH HGFFEE@DCClCCBdB(BAAA@@L@??l?@>t=<|<;x;:`:998 877@766d66550544l4,433T33221d1(100 0X/-D-$p$0$#8#"" ( P\L0x<,`x4h(\H|4\L  < p | 0  l ( XH".:fur~{`Lq "st>sZ~Vf~Sr}[~}T{{zzyx,x[^J[\YWfVYrVW~LKILI5HFHD(GHF%EHCB\?=<?<=9C&9228+>873Z6!f56r54~534#3$211#..- -\+1+*x*1)((6&6&(Z%7%4v%$-$&#.#&!<!:$\3l4|F"D.:Vb~          00AkCjĄC @@AA AAtC)kCNtoggleHH,44~m@у @C;PCm00 ACnx^C ,,؁"B6C>\<<)\=4BB(~mҶC`,,$CJC=00AB(~EжC (@@HBHBP@Bv%CҶCNmk00AkCjĄC @@AA" AAC)nCNtoggle@@$,,~m@у:Cm+CD,,T8AAudio88${ CB`((jCx00XB LL9,44?3+À@@HB B:CaB(00HB B:PC9B h00A;ГCm5C00 A A@BѶ? ,,%u,Bx,,@C?l00HBBfB0 @,,0`C('?|,,æC4?$00BB^$ ,,\]B?88A %BCm 44@A%B BVLCϫ44B@#CA 44B BC=˯ 44@A 4ZA>Ó"t44 A@ v $ 0$$%{Ax,,%CL,,C>880%>BA@!D@,,"C:=444ALBzm P,,*C>,,SJ1C>$88wBp& AfByt'CN5`,,HBA D 44@A.ZA Bp$$& ms ,, A B B l$$t'_x$$'Ԩx8<<BB ((~?=Ø$ D[hCcAlmnopqrstuvwxyz{|}~88C>AB`=B!iIC00 ApB@BFۢB ,,-AAudiod88+{TCB((jC 00XB LLD/,44?3+À@@ ApB@BF۶BefghT,,D,AAudio88,{TCBp((jC00XB LL-,44?3+À@@*AA@B06A`abc,,*AAudio\88({TCB((jC00XB LLL,,44?3+À@@HBqB:CFB[\]^L,,L)AAudio88){TCBh((jC00XB LL*,44?3+À@@KB A:C%YVWXY000HBpB:PCFB p00HB A:PC蒼 @@AA< AAC)bCNtoggle=rotate(math.pi/2) scale{0.45,0.45} text("DUAL", theme.text) HH,44~m@уC C%CRl<<DB(A ChCZCDUAL|PH<84($ G 0,|)LL*CpB.$,,z?&Uwi"PQSTUZ_dijk(@@AA< AAC)bCNtoggle>rotate(math.pi/2) scale{0.45,0.45} text("FADER", theme.text) (HH,44~m@уCBCNL00AkCjĄC l@@AA< AAtC)kCNtoggleif toggle == 1 then colour = theme.modules else colour = theme.text end save() translate{23.5,7.8} scale{0.45,0.45} text("RMS", theme.modules) restore() translate{5,7.8} scale{0.45,0.45} text("LIN", colour) |H@4,($?>  |HH,44~m@у @CpCKL44 AC5C?7|,,C>h<80($# h<<)\=4BBCl,,+Bo?C=00ABC 4@@HBHBD@BBCNmk -- add k and m input ports for knob and modulation knobSize = 1 -- 1 = standard, 2 = large, 3 = mini -- make Canvas width/height 50x50, 70x70 for large, 25x25 for mini if knobSize == 1 then ksize = 25 end if knobSize == 2 then ksize = 35 end if knobSize == 3 then ksize = 12.5 end -- Knob modulation: this displays knob modulation for both types of modulation - connecting a cable directly to a knob and/or a modulation port for the knob (with clamping on or off) -- Audulus colors white = color_paint {.84, .84, .84, 1} black = color_paint { .05,.05,.06,1} module = color_paint{ .11,.11,.11,1} azure = color_paint {0, 0.83, 1, 1} azure_dark = color_paint {0, 0.61, 0.73, 1} azure_bkgd = color_paint {0, 0.06, 0.08, 1} green = color_paint {0.23, 0.77, 0.33, 1} green_dark = color_paint {0.15, 0.51, 0.03, 1} green_bkgd = color_paint {0, 0.08, 0.01, 1} red = color_paint {1, 0, 0.38, 1} red_dark = color_paint {0.65, 0, 0.25, 1} red_bkgd = color_paint {0.11, 0, 0.04, 1} grad = linear_gradient({10,25}, {50,25}, theme.redHighlight, theme.azureHighlight, 0) --fill_circle({25,25}, 25, grad) -- module color circle (a little larger than knob to diminish aliasing when zoomed out) stroke_circle({ksize,ksize}, ksize-1, 3, module) -- black circle stroke_circle({ksize,ksize}, ksize-1, 2, black) a = math.pi * k b = math.pi * m -- when cable is attached directly to the knob (which is internally clamped) stroke_arc({ksize,ksize}, ksize-1, 2, a+math.pi/2, a, black) -- when using the modulation port (clamp = 0 shows full range of modulation) clamp = 1 if clamp == 1 then c = math.max(math.min(math.pi-a,b), -a) else c = b end -- change both to some other color (like red) to distinguish port from knob takeover if m >= 0 then mpos = math.max(0,c) stroke_arc({ksize,ksize}, ksize-1, 2, 2*a-math.pi/2+mpos, mpos, grad) elseif m < 0 then mneg = math.min(0,c) stroke_arc({ksize,ksize}, ksize-1, 2.3, 2*a+math.pi/2+mneg, mneg, grad) end -- highlight current position (using stroke_arc aperture) stroke_arc({ksize,ksize}, ksize-1,3, 2*a-math.pi/2, .08, grad) 00AkCjĄC h@<4($ 3 h@@AA< AAC)nCNtoggleif toggle == 1 then colour = theme.modules else colour = theme.text end translate{16.4,7.2} scale{0.6,0.6} text("RM", colour) |@8,($76  |@@$,,~m@уC CBCh<80($  h<<B(A C*CC DUAL FADER,,AAudio088,{ CB× ((jC00XB dLLl,44?3+À@@HB BC4B<=>?00HB BC B h40(  h44AC*C00 A AB X,,,u,Bx1-x,,@C?L00HBBfB0 ,,0`C('?\,,æC4?00BB^$ ,,\]B?p88A,BCm R44@A,B BVLCϫL44B@#CA 44B BC=˯ 44@AZA>Ó"d44 A@ v $ $$,{Ax-x ,, C0.7071 P,,C>88,>BA@!D@×,,"C:=h40(' h444ALBzm ,,*C>h,(  h,,SJ1C>h84, + h88wB, AfByt'CN5 (Bipolar) VCA (RMS) Crossfade ,,HBA D h40( 'h44@AZA Bp$$, mss*(pi/2)h,(  h,, A B B $$,_xcos(x)h$  h$$,Ԩxsin(x)|<4,($  |<<BB ((~?=Ø$ D.@CA !"#$%&'()*+,-./01234567h84,$  h88C>AB@}=C00 ApBBB ,,AAudio88${TCB((jC00XB 8LL,44?3+À@@ ApB4BB,,AAudio88{TCB((jC400XB LL,44?3+À@@*AA4B|,,AAudio88,{TCBA ((jC00XB 8LL,44?3+À@@HBqBCB h,(  h,,0AAudio-Audioh84, + h88,{TCBB h($ h((jC00XB |LD80,(CB $ |LLT,44?3+À@@KB AC Audio I/O Light00HBpBCB h0,$ h00HB AC |XPD<84($ O 0,|X*CpB,G?LK4ClBuHere’s an update to the **Dual Fader**, this time round in a simplified form as a basic building block that can be patched according to one’s needs. In essence, it’s a crossfader with an (optional) RMS curve that can be used for: - Crossfading: 2 input signals, 1 output signal - Panning: 1 input signal, 2 output signals - Ducking: 2 input signals, 2 output signals With a single input, it can also be used as a VCA, with a (close to) logarithmic curve if the RMS option is toggled. The ‘RM’ toggle inverts the polarity of the second channel, allowing for spatial effects, or ring modulation when modulated at audio rates. ### Controls - **LIN/RMS**: Toggle selects a linear or RMS curve. - **Fader** - **Fader modulation level** - **RM**: Ring Modulation (channel B inversion) toggle ### Ins & Outs - **Input A** - **Input B** - **Output A** - **Output ×** (Crossfade) - **Output B** ### Version History - v1.1 – 09 April 2018 (Audulus 3) - v2.0 – 02 May 2026 (Audulus 4) ### Links - [Audulus Forum](https://forum.audulus.com/t/hordijk-dual-fader/284) - [Hordijk #12 @NOVARS](https://youtu.be/ux_Qodg1r84)  89:;@ADEFGHIJMFader|H@840$  ,(|HCpB h@BaV.C# Dual Fader ## After Rob Hordijk Here’s an update to the **Dual Fader**, this time round in a simplified form as a basic building block that can be patched according to one’s needs. In essence, it’s a crossfader with an (optional) RMS curve that can be used for: - Crossfading: 2 input signals, 1 output signal - Panning: 1 input signal, 2 output signals - Ducking: 2 input signals, 2 output signals With a single input, it can also be used as a VCA, with a (close to) logarithmic curve if the RMS option is toggled. The ‘RM’ toggle inverts the polarity of the second channel, allowing for spatial effects, or ring modulation when modulated at audio rates. ### Controls - **LIN/RMS**: Toggle selects a linear or RMS curve. - **Fader** - **Fader modulation level** - **RM**: Ring Modulation (channel B inversion) toggle ### Ins & Outs - **Input A** - **Input B** - **Output A** - **Output ×** (Crossfade) - **Output B** ### Version History - v1.1 – 09 April 2018 (Audulus 3) - v2.0 – 02 May 2026 (Audulus 4) ### Links - [Audulus Forum](https://forum.audulus.com/t/hordijk-dual-fader/284) - [Hordijk #12 @NOVARS](https://youtu.be/ux_Qodg1r84) O|<4,($  |<< ((\A@hE{1