MidiDeep. The most powerful real-time MIDI effects processor.

Turn your iPhone or Mac into a real-time MIDI effects processor. Chain up to 4 MIDI effects, drive 4 to 8 independent timelines, and integrate into any digital or analog workflow.

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Your iPhone / iPad becomes a MIDI effects processor.

Create evolving patterns, generate musical variations and take control of your hardware synths with unprecedented power.

Chain up to 4 consecutive MIDI effect slots

Build your MIDI signal flow in the order you choose.

Chord Engine

Play one note, trigger a full diatonic chord — always within the scale of your choice.

Arpeggiator

Direction, note value (1/1 to 1/64), octaves, Gate, Swing, Latch and Transpose. Synced to internal or external clock.

MIDI Delay

Rhythmic MIDI repeats, synced or free-running. Feedback, decaying velocity and per-echo transposition for cascading melodies.

Harmonize

Automatic parallel voices on every note — third, fifth, octave — always anchored in the chosen scale.

Steper

16 polyphonic steps with note, velocity and duration. Patterns that layer on top of your real-time playing.

Patches & Presets

Save your entire chain — order, parameters, scale — and switch between presets in one tap, even live.

Available on
App Store
MidiDeep — 4 effect slots
MidiDeep — Chord Engine
MidiDeep — Arpeggiator
MidiDeep — MIDI Delay
MidiDeep — Harmonize
MidiDeep — Steper
MidiDeep — Patches & Presets

Available on iPhone and iPad

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Chain, move, repeat, transpose.

Add up to 4 effect slots, move them, remove them freely. Each effect can also let the original MIDI signal pass through in parallel (thru) — and every link, effect or thru, has its own independent octave offset.

sequencer + double arp
STEPS
ARPEGGIO+1
ARPEGGIO
USB to Mac
chord + layered echoes
CHORD
DELAY-2
DELAY
Bluetooth to Mac
cascading harmonies
HARMONIZE
HARMONIZE
ARPEGGIO
USB-C to MIDI DIN
full setup
CHORD
ARPEGGIO
DELAY
HARMONIZE
iOS → iOS
MIDI signal sent to the next effect MIDI signal sent to the output

Multi Timeline. 4 setups in parallel.

Create up to 4 independent timelines on iOS — 8 on macOS — each with its own effects chain and its own MIDI in/out routing. Switch between them in one tap, without losing the others' state — ideal for driving several synths or changing setups mid-show, from a single iPhone.

MidiDeep — TimeLine 1
MidiDeep — TimeLine 2
MidiDeep — TimeLine 3
MidiDeep — TimeLine 4
TimeLine 1
TimeLine 2
TimeLine 3
TimeLine 4

MidiDeep on Mac. All the power, natively.

The same MIDI effects engine, as a native macOS app. Open each effect in its own window, organize your workspace like any other Mac app — at no extra cost.

MidiDeep macOS
MidiDeep macOS — multi-window
MacBook

Power

MidiDeep's MIDI effects engine runs natively on macOS, free from the constraints of an iPhone screen.

Included in your purchase

iOS + macOS in a single purchase — no extra cost, no subscription.

Multi-window

Every effect, every timeline and every control panel can open in its own window.

Patches, saved. Recalled on the fly.

Each patch — full chain, effect order, parameters, scale — exports as a .json file : backup, sharing, restore in one tap. Live, each patch is mapped to a fixed Program Change (0 to 127) : any MIDI pedalboard or controller can recall your presets remotely, without touching the iPhone.

Export .json

Each patch saves to a .json file — backup, sharing between devices, restore anytime.

Fixed Program Change

Each patch corresponds to a Program Change number (0-127), received from any standard MIDI pedalboard or controller.

Per-effect presets

Each effect — Chord, Arpeggio, Delay, Harmonize, Steps — also saves its own presets, individually controllable via macro or MIDI CC.

Compatible with your whole setup.

MidiDeep — MIDI connections diagram

MIDI USB

Connect your iPhone to your Mac via USB and enable the network MIDI session in Audio MIDI Setup. MidiDeep then appears as an external MIDI interface in your DAW — Ableton, Logic, GarageBand.

Bluetooth BLE

Pair MidiDeep directly to your computer or sequencer via low-latency Bluetooth LE. No cable, no driver — ideal in the studio and on stage.

MIDI DIN

With a simple USB-C to MIDI DIN adapter cable, turn your iPhone into a true standalone MIDI effects pedal — plugged directly between your keyboard and your hardware synth, no computer needed.

MIDI DIN

With a simple USB-C to MIDI DIN adapter cable, turn your iPhone into a true standalone MIDI effects pedal — plugged directly between your keyboard and your hardware synth, no computer needed.

Inter-App MIDI

Chain MidiDeep with your other iOS apps via the inter-app MIDI session. In AUM, Audiobus or GarageBand, MidiDeep processes your notes in real time — right at the heart of your mobile workflow.

Inter-App MIDI

Chain MidiDeep with your other iOS apps via the inter-app MIDI session. In AUM, Audiobus or GarageBand, MidiDeep processes your notes in real time — right at the heart of your mobile workflow.

MidiDeep

The central hub of your setup: MidiDeep receives, transforms and redistributes MIDI in real time across all your devices — USB, Bluetooth, DIN or inter-app — regardless of protocol.

MidiDeepStick

A standalone unit.

A compact, standalone hardware module, controlled by the MidiDeep app. It processes your MIDI effects directly, with no computer, and connects to your hardware synths.

Dimensions 75 × 180 × 50 mm
Effects processing Standalone
Control MidiDeep app
Input TRS + USB-C
Output TRS MIDI

MidiDeepStick — coming soon

MidiDeepStick will soon launch a crowdfunding campaign. Sign up to be notified when it goes live.

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MidiDeep Desktop. 4 timelines in hardware.
[We're thinking about it…]

A dedicated, standalone MIDI effects processor in a desktop format — 4 independent timelines, each with its own effects chain, driven by hand.

MidiDeep Desktop — MIDI FX Processor

MidiDeep Desktop.

A dedicated unit capable of processing 4 MIDI timelines in parallel — each timeline with its own effects chain (Chord, Arpeggio, Delay, Harmonize, Steps), its own MIDI input and its own MIDI output. Effect / Off / Move / Thru buttons and an encoder per timeline, global macros, instant Panic, 2 USB ports. No computer required.

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Got a question?
Let's talk.

For any question about MidiDeep, MidiDeepStick or MidiDeep Desktop, contact Direct Graphic.

📍
4, rue Carnot
66160 Le Boulou – France
MidiDeep

MidiDeep is an app developed by Direct Graphic S.A.S.

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