IMPSY vs Bruno Drum Synth

Jam with an AI MIDI partner on iPad and iPhone. IMPSY listens to what you play and improvises musical responses. Load it as an AUv3 MIDI Processor in AUM, AudioBus, Cubasis or Logic Pro for iPad, play it from a USB or Bluetooth controller (or the on-screen faders), and route its output to any instrument app. IMPSY also runs on its own: it appears as Core MIDI virtual ports (IMPSY In / IMPSY Out) and connects directly to a plugged-in controller, so you can play it without a DAW. How it works IMPSY runs a Mixture Density Recurrent Neural Network (MDRNN) on-device. Every note, control change or pitch-bend you send becomes input to the model, which predicts what comes next, including the timing of the response. Shape the conversation with: • Threshold: how long IMPSY waits between your input and its reply • Sigma Temperature: randomness of pitch and control values • Pi Temperature: randomness of which musical "idea" the model picks • Timescale: speeds up or slows down the response • MIDI Thru: passes your own playing through to the output alongside IMPSY's Connect anything • Map each model dimension to any MIDI message (notes, CCs or pitch-bend) on any channel, independently for input and output • Connect a controller directly, or use the always-on IMPSY In / IMPSY Out virtual ports • Import and export your mappings as TOML, compatible with the IMPSY Python toolkit Custom models IMPSY ships with a default 9-dimensional model trained for general musical interaction, but you can load any .tflite model trained with the open-source IMPSY research toolkit: synths, drum machines, lighting rigs, or anything that speaks MIDI. Accessibility IMPSY is built to work with VoiceOver and Dynamic Type. Every control is labelled, the sliders are adjustable by VoiceOver, and status shows as text, not colour alone. Full statement: charlesmartin.au/impsy-auv3/accessibility.html Compatibility • AUv3 MIDI Processor, no audio I/O • Hosts in AUM, AudioBus, Cubasis and Logic Pro for iPad, or any other AUv3 host that supports midi processors. • Also runs standalone with Core MIDI virtual ports and direct device connection • Requires iOS 17 • MIDI stays on-device. No network, no telemetry

Here is the secret behind every great drum: the professionals build them in layers. A kick is a sub, a click, and a body. A snare is a tone, a crack, and a wash of noise. The traditional way means juggling samples, plugins, and routing to pull it off. Bruno makes that professional technique effortless. Bruno is built around three ideas: • Four synthesis engines per drum, layered in parallel, each with its own complete signal chain • Six voice types that reconfigure all four engines for the right frequency range • Intelligent randomization and a context-aware tweak system The result is punchy kicks, cracking snares, shimmering metal, evolving percussion and twangy plucks. Whether it is your first drum synth or your fortieth, Bruno meets you where you are. Hit the dice for an instant new sound. Roll a single engine or nudge one tab at a time. Or dive deep into per-engine sound design when you are ready. SIX VOICE TYPES • Kick, Snare, Hat, Clap, Tom, and Pluck • Each voice retunes all four engines for its own frequency range and parameters • Parameter values are preserved when you switch voices, so happy accidents carry across • String-model Pluck with pickup comb, stiffness, and modal resonance FOUR INDEPENDENT ENGINES • Analog, FM, Fold, and Resonant, summed in parallel • Every engine has its own tune, decay, and volume plus pitch envelopes • Filters: 8 types with cutoff, resonance, bipolar envelope, and decay • Three LFOs per engine: Cutoff, Pitch, and Character, with sync, gate, phase, and range • Per-engine compressor, drive with 4 saturation types, delay with 4 types, and 3-band EQ • Per-Engine noise, includes independently controlled noise decay, with white, pink and crackle noise. • ON and OFF per engine, so a drum can be one engine or a dense four-layer stack SHAPE THE TRANSIENT • Dedicated Vol Env tab with click amount, click tone, decay curve, and tail • Per-engine Body Peak EQ for tuned resonance and thump • Voice-specific controls like Kick Tick, Snare BP wires, and Pluck stiffness and hum MASTER FX BUS • Saturator, Compressor, Transient Shaper, Reverb, Stereo width, and Limiter • Global 3-band EQ with quick presets • Copy to All across filter, compressor, delay, EQ, and every LFO INTELLIGENT RANDOMIZATION • Musical preset generator tuned per voice for usable drums, not noise • Generate by style and target by category for each of the six voices • Roll a whole preset, a single engine, or one tab at a time • Tweak system for subtle, context-aware variations • 100-entry history you can step forward and back through • One-tap dice for instant inspiration SAMPLE EXPORT • Export Any Sound – Turn your Bruno creations into reusable audio samples. • Single-Sample Export – Quickly export drums, percussion and other non-chromatic sounds as individual samples. • Chromatic Multisample Export – Automatically create complete multisample sets from pitched sounds. • Flexible Multisample Mapping – Choose the root note, octave range, and semitone spacing for your multisample exports. • Flexible Audio Export – Choose sample rate, bit depth, and mono or stereo format to suit your app or hardware. • Instant App Export – Send Bruno sounds directly into Koala or Loopy Pro with no editing required. • Build Your Own Sample Libraries – Export sounds for hardware samplers, drum machines, DAWs and grooveboxes to create custom kits and multisample instruments. EFFORTLESS WORKFLOW • Consistent layout across all four engines • Live scope with per-engine spectrum feedback • Per-tab hints explaining the controls plus production tips BUILT FOR REAL MUSIC • Factory presets including curated Signature sounds • Preset import and export • Master Preset import and export • Deep MIDI: full Note and CC mapping (CC mapping AUv3 only) • Clock-synced LFOs lock to host tempo • AUv3 plugin that works in AUM, Loopy Pro, Drambo, Logic Pro, GarageBand, Cubasis, and more