055U4RY

OSSUARY: horror AUv3 synth

£4.99

A horror AUv3 synth and an AUv3 FX in one app. Fifteen machines that crush, filter and haunt. Play them, or run your own drums, guitar and vocals through it. 055U4RY (say it: "ossuary") is an 8-voice polyphonic AUv3 synthesizer and an AUv3 FX, sealed together inside a haunted DOS terminal. A photographic ASCII skull is the front panel: its jaw hinges open with the amplitude envelope, its eye sockets ignite with the output level, and the whole interface tears, melts and reassembles itself while you play. THE VOICE - 15 synthesis engines: detuned saw/square/triangle unison stacks, sine and sub-oscillators one and two octaves down, two-operator FM, ring modulation and inharmonic partials. Every factory preset is a different engine. - Twin chaotic LFOs that cross-modulate each other's RATE, so pitch and filter drift never repeats. Held notes stay alive and slightly wrong. - A Shepard-Risset layer tuned beneath every note: five windowed partials in an endless downward glissando - the bottomless-pit illusion of classic horror scoring, fused into the oscillator core. - A 19 Hz infrasonic tremolo at the edge of perception. On headphones it is a shiver; on a big system it is pressure. THE CHAIN - State-variable filter, low-pass or band-pass per engine, with resonance that will scream - Sample-rate reducer and bit-depth crusher for terminal-grade lo-fi - Saturating drive stage - GLTCH: a real-time stutter buffer that seizes and re-loops your signal - CRYPT: a damped, pitch-black comb/allpass reverb - GLIDE: exponential portamento up to 1.5 seconds - DOOM: one macro that leans the chaos, the descent and the tremor deeper into the signal PERFORM - 14 knobs, all ASCII, every one audible on every preset - 15 factory presets with per-preset patch memory: your tweaks persist for each preset, and [RESET] restores the factory sound - Two-octave on-screen keyboard with octave transpose and note names - Hardware MIDI in (all sources auto-connect), built-in Bluetooth MIDI pairing, pitch bend, MIDI 2.0 aware - The skull is your meter: jaw = envelope, eyes = level, decay = how hard you push GLTCH AUv3 SYNTH + AUv3 FX + STANDALONE Runs standalone with zero setup, and installs as an AUv3 instrument and an AUv3 FX in your host: AUM, Logic Pro, GarageBand, apeMatrix, WBTRK and any AUv3-compatible DAW, with full parameter automation. One purchase, every platform: iPhone, iPad and Mac. No accounts, no ads, no data collected - your patches never leave the device.

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⏺ Transmission 1.31 — misbehaving headstones. In IPad landscape mode the FX part got haunted out of this world, now we chained them back to the graves. The cursed bats are also have better manners now. ⏺ Transmission 1.30 — the crypt opens for everything else. 055U4RY is now two plug-ins: the AUv3 synth, and a new AUv3 FX. Put a drum loop, a guitar or a whole mix through the same fifteen rites and the same panel you already know. Buying today or updating from 1.20, everyone gets both. One app, one price.

The developer, LASZLO DOBROVOLSZKI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    The developer does not collect any data from this app.

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    Provider
    • LASZLO DOBROVOLSZKI
    Size
    • 2.3 MB
    Category
    • Music
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    9+
    Copyright
    • © 2026 Laszlo Dobrovolszki