Devils Turntable vs PolyQuad

WHAT DOES THAT SOUND LIKE BACKWARDS? For about thirty years people were convinced that rock and metal records had messages hidden inside them. Play the album in reverse and the devil speaks. It was nonsense, but it was very fun. Devils Turntable is a pocket-sized backmasking machine. Load a sound, hit SATANIZE, and hear it play in reverse while fire and smoke crawl up the face of the deck. HOW IT WORKS Record straight into the app with your microphone. Or import an audio file. Or drop in a video and the app pulls the audio right out of it. Then flip it. The record slows to a dead halt like you dragged your hand across the platter, then spins back up the other way. THE CONTROLS - SATANIZE — flips playback backward, then forward again - SPEED — bends pitch exactly like a real turntable. Slow it to a crawl or run it fast and chipmunked. - FIRE and SMOKE — two knobs that crank the atmosphere on the deck itself WHAT PEOPLE ACTUALLY USE IT FOR - Settling arguments. "That melody is just Happy Birthday backwards." Prove it in ten seconds. - Learning to speak backwards, which is a genuinely useful and genuinely stupid party skill. - Guitarists checking a reversed solo before they commit it to tape. - Testing your own voice memos for accidental demonic content. - Being the person at the party who says "wait — listen to this." HONEST ABOUT WHAT IT ISN'T This is a listening tool. It plays audio backwards. It does not export, edit, or save reversed files. If you need a reversed stem for a track, open your DAW like an adult. Devils Turntable is for checking, learning, and goofing off, and it does that faster than anything else on your phone. PRIVACY Nothing leaves your phone. No account, no analytics, no tracking, no ads, no data collection of any kind. Your recordings are yours and they stay on your device. No actual demons or poltergeists were summoned during the making of this app.

PolyQuad is one synthesizer built from four complete voices — and the instrument is what they make together. Each of the four channels is a full analog-style voice: its own oscillator, its own resonant filter, its own envelopes, its own amplifier, its own place in the stereo field. Design each channel for a role — a sub, a body, a sparkle, a slow swell — then play them as one. Three voice modes decide how they combine. UNI stacks all four on every note for one massive layered sound. POLY spreads chords across the channels, so every note of a chord lands on its own instrument. 2×2 plays note pairs on matched couples. Add glide, retrigger control and detune spread on top. THE CHANNELS - Four oscillators: triangle, sawtooth, pulse with PWM, sine — per channel, with octave and fine tune - Four resonant filters with envelope amount and FM depth per channel - Two envelopes per channel (filter and amp), each with three time ranges from snappy to minutes-long - Per-channel VCA with velocity amount and curve, level, pan, AUX send, solo and mute - Per-channel oscilloscope displays, and keys that light up with the voice that took them MOTION - Four LFOs with five shapes, routed to pitch, pulse width, filter FM, resonance, amplitude, pan or send - Each channel decides how much modulation to accept — one LFO can wobble one channel and leave another still - One effect unit — reverb, delay, chorus, phaser, drive — fed by per-channel AUX sends with a master return PRESETS - 160 factory presets in eight categories: Pads, Keys, Strings, Bass, Lead, Drone, Texture, Percussion - Every preset uses the four channels as four different instruments — layered stacks, rotating timbres, per-drum kits - Channel presets: capture one channel's design and load it into any channel of any patch - Your presets are plain JSON files in the Files app — back them up, share them, drop new ones in IN THE STUDIO - AUv3 instrument for AUM, Drambo, Logic Pro, GarageBand and other hosts - MIDI 2.0 with 16-bit velocity; MIDI 1.0 hosts are translated automatically - Every knob on the panel is a host parameter — full automation and session recall - Standalone app with keyboard, so it plays on its own too No account, no ads, no tracking, no network. Your sounds stay on your device.