A«iD vs Backdrop

A«iD is an audio-reactive video synthesizer inspired by Eric Siegel's legendary EVS Electronic Video Synthesizer from the 1970s. ——— THE CHAIN ——— Modules process the video signal in real time. Stack them in any order, tap to open controls, drag to reorder, long-press to bypass. GEOMETRY SOURCE — Generate a synthetic shape and composite it over the signal. Circle, diamond, bar, cross, ring, triangle, hexagon — or load your own SVG, PNG, or PDF as a custom mask. Position, size, hue, and edge softness are all independently audio-modulatable. FEEDBACK — Route the processed signal back into itself. Pinch and rotate on the canvas to control zoom and spin in real time. KEYER — Unified luma and chroma key in a single module. Cut foreground from background by luminance or isolate a color as a matte. Tap the eyedropper to sample any color directly from the screen. Pairs visually with COMPOSITE in the chain — the signal knows where it's going. COMPOSITE — Layer the processed chain behind a clean camera cut using luma and chroma mattes simultaneously. COLOR MATRIX — Rotate, invert, and cross-channel the RGB color space. Strange colors guaranteed. HUE LFO — Oscillate the hue channel at tempo-synced rates. Psychedelic pulsing locked to the beat. PHOSPHOR DECAY — Emulate CRT phosphor persistence. Past frames linger like burned afterimages. BURN ECHO — Additive frame echo that saturates toward white. Motion leaves a scorched trail. DV TAPE — Analog dropout and compression artifacts from the era of consumer DV camcorders. HALATION — Film halation glow on bright areas. Warm blooming on highlights. CHROMA SMEAR — Horizontal chroma bleed and compression fringing. SCAN DISPLACE — Rutt/Etra-inspired raster displacement. Each scanline shifts horizontally by audio frequency content mapped to vertical position — bass warps the bottom, treble the top. The entire frame becomes a spectrum warp field. EDGE OUTLINE — Sobel edge detection with colored glow, inspired by Stephen Beck's Direct Video Synthesizer. Flat areas go dark; edges light up in the chosen hue and bloom outward. COLORMAP — Remap luminance to color. Five palettes: Thermal (heat vision), Psychedelic (full hue rotation, classic Siegel PCS), Phosphor (P1 green CRT), Ice, and Neon. Every pixel's brightness becomes a new color. RASTER BEND — Distort the scan lines. Warp the geometry of the image itself. MIRROR — Fold, flip, and tile the frame into kaleidoscopic symmetry. TILE — Repeat, scale, and rearrange the frame in a grid. POSTERIZE — Reduce color depth. Hard edges, flat planes, screen-print aesthetics. TRANSFORM — Rotate, scale, and reposition with full affine control. CHANNEL MIX — Blend and cross-route RGB channels independently. ENCODER — NTSC-style composite encoding. Color bleeding and luminance separation. ——— AUDIO REACTOR ——— Every knob can be wired to the live audio signal. A»iD listens constantly and extracts amplitude, bass, mid and treble bands, beat phase, BPM, onset triggers, and spectral centroid. Seven LFOs run at BPM subdivisions. Open the Patch Bay to wire any source to any parameter in any module. Stack multiple sources on one knob. Set amount and polarity per patch. ——— RANDOMIZE ——— Shake the device (or hit the die) to randomize the whole chain. Palette Lock freezes hue and saturation through dice rolls. Sleeper Mode locks each module's bypass state — sleeping modules stay asleep, active modules stay awake. Everything re-rolls around your intention. ——— SYNC & CONTROL ——— ABLETON LINK — Lock BPM and beat phase with Ableton Live, AUM, Loopy, and any Link-compatible app on your network. MIDI — Auto-learns CC from any wired or Bluetooth MIDI controller. Long-press any knob to assign. OSC — Receive /aid/ messages from TouchOSC or Max/MSP over Wi-Fi.

Pick a Look and the camera changes. Point it at a street and the street is already painted in oil, or broken into dots, or drawn by hand. You are not previewing a filter. That is the picture, and the shutter keeps it. THE LOOKS Brush. Painted stroke by stroke, coarse to fine, as you move. Mosaic. Rebuilt from its own colours. Cells split where there is detail. Drawn. The world drawn instead of photographed. Flat colour, inked lines. Matter. The picture as a field of grains that drift and settle. Fur. Combed strands that follow what the camera sees. Dither. Tone traded for dots on one fixed grid, nothing in between. Halftone. Print dots on a square or hex grid, in four shapes. Fluted. Seen through ribbed glass. The world arrives in strips. Water. Refraction and caustics, the scene read through moving water. Code. Digital rain over katakana, lit by whatever the camera sees. The list grows. New Looks arrive in updates. TAP OR HOLD Tap the shutter for a photo. Hold it to record, up to ten minutes. Video renders in the background at full quality, one frame at a time, using the exact settings you shot with. TUNE ANYTHING Every Look has its own knobs. Size, grain, relief, speed, depth, whatever that Look actually has. Drag the handle at the edge of the screen and the picture changes under your thumb. Tap a knob to put it back. BRING YOUR OWN Choose from Photos to run something you already have through a Look. For video, trim it first, pick the frame, then render. NOTHING LEAVES YOUR PHONE No account, nothing to sign in to. No servers. What you shoot sits in the Shelf on your device. Saving a copy to Photos is a switch, off until you turn it on. BACKDROP PREMIUM Dither, Water, Halftone and Drawn are free, and they record video too. Premium opens every Look, including the ones added later, and takes the Backdrop mark off everything you shoot. Monthly and annual. Payment goes to your Apple Accou renews unless you turn it off at least 24 hours befo Manage or cancel in Settings, Apple Account, Subscri Privacy: backdrop.wiki/privacy Terms: backdrop.wiki/terms Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ iPhone. iOS 18 and later.