Drambo 2.53 - App Store

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About Drambo

Drambo is your all-in-one sound laboratory that adapts to your workflow: build beats as a groovebox, design synths, or transform audio with effects, standalone or inside your favorite DAW. At the core of Drambo is a fresh...

Drambo is your all-in-one sound laboratory that adapts to your workflow: build beats as a groovebox, design synths, or transform audio with effects, standalone or inside your favorite DAW. At the core of Drambo is a fresh approach to modular design that makes creating with modules easy, fun, and accessible. Connections happen automatically as you add or move modules, so there are no messy cables to slow you down. The interface adapts to your workflow, generating modulation controls when you need them, and even lets modules contain other modules for perfect organization. You’re always free to override the automatic connections, but most of the time, you can just dive in, experiment, and shape sounds without getting tangled in wires. Use a deep and innovative sequencer to compose patterns and whole tracks, for production or live performance. Go beyond simple looping sequences with parameter locking, conditional step components, parameters automation and powerful scene morphing. Drambo works equally well as a self-contained standalone app or audio unit plugin with audio and MIDI connectivity as an AUV3 instrument, audio effect and MIDI effect. "Drambo changes the face of iOS music apps." Cult of Mac You can use Drambo as . A complete music production and performance environment . Endless modular playground, that allows you to build, modify and store custom instruments and effects. For instance: build a custom synth, sample and resample, build a Theremin using a gyroscope module, or turn your table into a playable surface, by processing microphone input with physical modelling modules. Get weird or make functional instruments and tools. . MIDI sequencer, that works with hardware and AUv3 instruments (e.g. Drambo sequences other instruments in an AU host app). Moreover Drambo can generate custom MIDI CC messages or modulation signals to control modular synths via DC coupled interfaces. . AUv3 synthesizer, effect or sequencer in other DAWs. Drambo can replace a lot of audio plugins. For instance: you may use it as a chorus, phaser, reverb, filter, equalizer, complex modular delay, decimator, frequency shifter, MIDI effect or complex modulator for other synths. You may combine, modulate and sequence them in no time. Features: . Polyphonic, stereo processing and audio-rate modulation. All signals are equal. Up to 16 voices per modular instrument rack. . Unique modular concept: cable-less, drag'n'drop, color coding dynamic interface, automatic connections, and customizable compact, rack views. . Directional flow makes Drambo routing and patching straightforward. Signal flows only left to right, so there are no instant feedback routings in Drambo. Delayed feedback is possible using certain modules. . Simple and clean interface, that scales to every size and device orientation . Over 140 modules available, such as: oscillators, samplers, physical modelling modules, LFOs, envelope generators, filters, audio effects, mixers, MIDI processors, sequencers and math functions. (Includes a macro oscillator based on the famous Eurorack Plaits module, with 24 synth engines) . Custom modular racks that can be nested, with presets at the track, rack, and module level. . Clip launcher / song arrager. . 16-tracks, polyphonic sequencer with parameter locks, automation and step components. 8 dedicated step sequence editor types, piano-roll, powerful automation designer with drawing modes and cubic Bezier curves. . Audio Units hosting ( standalone app only ) . Morph groups: you can morph many parameters using a single slider. . Available as a standalone app, AUv3 instrument, effect and MIDI effect. . MIDI and Ableton Link support With Drambo, you are in charge. Create the music from your vision to reality. Visit the BeepStreet page for help and tutorials, and Patchstorage for community content.

Version History - Fixed: Crash when creating a new project with the Sequencer module on a track. - Updated: Random module: Added the Steps parameter. It quantizes the output and guarantees non-repeating sequences. 2.53 Apr 27 - Fixed issues with clip-synchronized recordings in Flexi Sampler - Fixed issues where Audio Unit modules could show “Error” after Drambo had been in the background - Fixed issues affecting automation and parameter-lock recording when using MIDI mapping with feedback - Fixed occasional out-of-tune playback in Macro Oscillator - Minor bug fixes and stability improvements 2.52 Apr 18 Step Sequencer: New Additive Mode Additive Mode is here, making it faster to build and tweak steps. Hold a step to toggle its notes using the keyboard. Hold a piano key + tap a step to add or remove that note—without overwriting the rest of the step. • Great for quickly adjusting drum hits or adding/removing chord tones inside a step. • To fully replace a step, quick-tap to clear it first, then enter new notes. Additive Mode is now the default. You can switch it in Settings → Interface. 2.51 Feb 13 Fixed: Incorrect playback behavior when clip speed was set to non-default values. 2.50 Jan 29 New • Code module: A real-time programmable DSP block using a simple custom expression language + interpreter. Write code live while it plays, in buffer or per-sample mode, with a toolbox of filters, envelopes, and common DSP ops. • Oscillator (PM) module: A classic subtractive oscillator with 4 waveforms, phase modulation, and precise sync, plus phase/beat-style detuning. • Smaller projects: Drambo project files are now up to 4× smaller when saved without samples. • Minimum iOS: Drambo now requires iOS 15 or later. • LFO module: Added Random Walk mode. • Sample view: New gesture: drag-up to zoom in, drag-down to zoom out. • The audio unit list can now be sorted by name, or by usage frequency + name (default). Fixed • Fixed a rare crash during song rendering. • Fixed rare double triggers in the sequencer. • Fixed missing modules in the Tags section of the Library Browser. • Fixed a rare issue where clip images didn’t update after drag & drop in the Clip Launcher. • Piano Roll: Fixed visible range updating while the Piano Roll is hidden when switching regions in the Clip Navigator. • Fixed issues with the two-finger step copy/paste gesture. • Fixed sample and curve editor issues on OsX. • Minor bug fixes and stability improvements. 2.49 Jan 27 - Added a built-in help system. Activate help mode from the top bar icon to view information about any UI element or module. - Instrument, Processor, and MIDI racks now include preset selectors in the module view. - New Instrument and Processor rack presets added. - Step Sequencer MIDI mapping - hold the source step and tap another key to set step length; repeat to reset. - Fixed a rare crash that could occur while connecting sockets. - XY Pad: Fixed UI glitches and improved appearance. - Fixed UI glitches when collapsing nested rack views. 2.48 11/08/2025 Fixed: - AU MIDI Processor module: pressing REC while the transport was stopped could cause a crash. - Wavetable modules: layout issues. - iPhone (portrait) – Gate Editor view: layout issues. - Occasional crashes during AUv3 library scanning. - Gate Editor: setting the default gate length did not work. - Piano Roll: rare crash when moving events. Added: - APC40 MK2 MIDI mapping profile - New version of Meta randomizer module. Works in 3 modes now: Gate random, Gate boolean and Drift. Drift may be used for instant polyphonic random modulation applied to many parameters. 2.47 10/14/2025 Added: Macro oscillator based on the DSP of the famous Mutable Instruments Plaid eurorack module. 24 synth engines are available (VA VCF, Phase distortion, 6 OP FM A, 6 OP FM B, 6 OP FM C, Wave terrain, String machine, Chiptune ARP, VA, Waveshaping, FM, Grain, Additive, Wavetable, Chord, Speech, Swarm, Noise, Particle, String, Modal, Bass, Snare, Hihat) each accessible via 3 macro knobs. It also includes a built-in low-pass gate and decaying envelope, so it can function as a self-contained voice for plucky and percussive sounds. The Engine input is polyphonic. e.g. Connect poly knobs or Random module to the Engine input to get a different engine per voice. 2.45 08/30/2025 Fixed: issues with odd clip lengths and time signatures. 2.41 08/25/2025 MIDI Mapping • Step Sequencer and Navigator are now mappable. • Added support for bidirectional communication: controllers receive updates from Drambo to reflect the current parameter and UI state. • Added 4 virtual Shift buttons and mapping conditions. • Support for MIDI mapping profiles (persistent across sessions). • Several ready-to-use mappings for popular controllers are included. Sequencer • Added support for time signatures, polyrhythms, and polymeter. • Steps can now be muted (activate the MUTE button). • Fixed: Piano roll background line colors. • Fixed: Rec Quantize button is now MIDI mappable. Modules • New: Limiter module (brickwall, true-peak detection). • New: Transient Detector module – added advanced mode (handles complex inputs such as RadioUnit AUv3 streaming). • New: Spectral Freeze module (Waves Extension IAP). • New: Grain Shifter module. • New: Speech Synthesis module (Formant Extension IAP). • Oscillator (Mini): Added Impulse mode. • MIDI Chance: Extended with Chord or One / One of Chord modes. (turn chords into random mellodies) Fixes • Flexi Sampler: distorted sound when using long samples. • MIDI Sequencer module: cycle condition not working. • Main Sequencer: rare MIDI glitch. • Shift Register module: state is now saved. • Euclidean Sequencer: layout issues. • Layer Switch module: crash when editing layers. • MIDI Mixer: reconnecting ports caused them to disappear. • Bernoulli Gate module: occasionally passed B value when Rnd = 0. • Undo: fixed possible crashes when editing sequencer, recording automation, or editing piano roll. • Stochastic Gate Generator: modulation not working. • Crash after changing AU instrument presets in INS Pads mode. • MIDI Channel Filter: did not filter Channel Pressure messages. • Flexi Sampler: sample browser now correctly highlights the last selected sample. Keyboard Shortcuts • SELECT + Source element → Target element: Copy → Paste. • SELECT + Source element x2: Set length/last element (last step in sequence, sequence page, or pattern). 2.40 08/20/2025 - Fixed: Track module knobs were not synchronized with the corresponding rack knobs. - Fixed: Current sequence view range was changed during recording. - Fixed: Layout problems with Mela AUv3. - Improved: Notes representation in clip preview views. (only used octaves are shown) - Minor bug fixes and stability improvements. 2.31 03/24/2025 - Fixed: Flexi Sampler module: silent audio engine crash when using edited samples. - Fixed: Sampler module: recording to key issues with external MIDI controllers. - Minor bugfixes and stability improvements. 2.30 01/18/2025 - Fixed: Rare crash when double tapping some buttons. - Fixed: Audio engine initialization error on devices without audio input. - Added: List of MIDI-mapped elements (Settings). - Added: Poly knobs module. - Added: Spectral filter module. 2.29 12/19/2024 Fixed: - Layout issues while scaling rack editor view. - Rare crash when using time-stretching in Flexi sampler module. - Piano keyboard sent note off messages with velocity 127. - Drag'n'drop midi files to the launcher caused crash. - Instrument Rack CV inputs disappeared when switching to MIDI mode and back. - Missing modules help and lack of modules in Tags browser. 2.28 11/01/2024 - Fixed: issues with iOS18, stability improvements - Double tap on AUv3 floating window to maximize - Added Vocoder module - Resizable rack area (iPad only) drag launcher symbo. - Pads higlighting - Projects and Sample browser - search added, Drambo projects list shows file size - UNDO + multitrack sequencer button to clear session - Pattern menu: you may set number of steps for all clips - Piano roll: snapping options - Fixed: MIDI takeover mode - MIDI mapping menu is persistent and remains visible - (Flexi: time stretching) - System AUv3s are optional, disabled by default, may be set in settings - MIDI note generator module - channel param addedd - New module: Layers switch (mixer section). Works with cv/audio and MIDI. Only active layer is processed (CPU save). Great to save CPU - Filter module: 2 modes added: HP24 and BP24 - MIDI input module - CV quantizer - added MIDI mode, where notes are set by incoming MIDI signal - Flexi: Added "auto-monitoring" module paramter - Flexi: keep settings between sample load. Disable autorecognize sample 2.27 10/21/2024 - Added: piano roll side keyboard (optional) Fixed: - Problems with importing some MIDI files. - New modules were not visible under Tags section in library browser. - MIDI mapped tap tempo wasn't working until you open tempo window. - Crash after exporting presets on iPhone. - Flexi sampler: Current samples folder was not preserved, when sample was removed by swipe down gesture. - Flex samokeri: keep settings between sample load. Disable autorecognize sample. - Waveform view: sometimes loop end marker was not visible. 2.26 09/27/2023 - Various bug fixes and stability improvements. - New IAP "DSP extensions 1" containing 2 modules: Wave scanner and BBD resonator. - MIDI clips may be imported and exported now (Clip menu) - Rack view may be enlarged to 110% of it's original size (iPad only, Settings) - Sample browser: added web browser mode. You may download samples directly from websites (e.g. freesounds.org) - Added MIDI sequencer module - Analog filter module: added a new filter model FDB LP12 - self modulating 2 pole LP filter - Wavetables/Wave spline module added: draw or waveshape wavetable - Wavetables/Wave motion module: added a new type of wavetable modulation - Wavetables/Wave effect module: added Bitmask phase effect - Graphic envelope module: added bar sync option - Flexi sampler: Load and Rec buttons are visible, when sample is not loaded. Swipe down to remove sample. - Recorder module: sample is saved with a project. Tapping wave shows extended view - LFO module: added random sine and random triangle waveforms - Oscillator mini module: added "2 detuned saws" mode - X/Y pad module: added popover mode - Morph module: fixed issues with wrong color coding, added "Clear assigns" action. - Pitch module - semi and fine paramters are bipolar now - Stems recording: tapping play while transport is running will disarm recording - Piano roll editor and multitrack step sequencer: fixed several minor issues - Long labels are truncated in the middle - Clip p-locking: remains active when Select button is down - Piano keyboard: added Mixolydian scale - Ableton Link: Drambo doesn't change link tempo after loading a new project - Fixed issues with mapping AUv3 parameters via map menu in some plugins. 2.25 09/05/2023 Added: - Instant audio and MIDI monitoring. Hold input socket to show monitoring window. Oscilloscope, spectrum or MIDI monitor. - MIDI quantize module Fixed: - Improved stability of external MIDI clock sync. - Drambo AUv3: sharing presets and creating folders were not working. - Previous/next preset buttons in rack header was not working after loading a project. - Curve editors didn't remember it's state on project or preset save - Disabling some MIDI modules were not working - UNDO + REC in addition to clearing sequence, put sequencer into auto advance mode - AUv3 hosting: some Audio Units were not loading propperly, rare crash while mapping parameters 2.24 02/14/2023 - Added: Wavetable LFO module. - Settings: ability to disable computer keyboard mapping to piano keys. - Flexi sampler: Playback is not blocked when recording panel is visible. Previous behaviour is available in module options. Fixed: - Issues with poly aftertouch MIDI messages. - Issues with clips with odd lengths: wrong length after loading, problems with playback cursor. - Drambo AUv3 MFX: Default MIDI outputs were set to Feedback port. - Piano keyboard was not resizing properly. - Flexi sampler undo sample trim. 2.23 01/20/2023 Added - MIDI N-1 switch module - MIDI 1-N switch module Fixed - Module library was blank after selecting a preset - Drambo AUv3 state was not restored (rare) - Issues with Custom rack layout - Crash when changing Custom rack input type - Slow buttons response on Mac - Settings: issues with MIDI in clock offset - Pattern add buttons was not visible on iPhone (rare) - Stability improvements 2.22 01/07/2023 - Fixed: "Select all" in rack editor view wasn't working. - Fixed: Rack editor automatically scrolls during selection. - Fixed: Problems with accessing files on iOS12. Added setting to disable public filesystem. - Fixed: Missing modules in tags section of the library browser. - Fixed: Rare crash in Buffer stop and Buffer rescan modules. - Added: Internal MIDI feedback port. 2.21 12/22/2022 - Drambo folder is public now and available in the iOS Files app. - Clips can be named and have a custom length. - RCK pads mode - load presets directly on pads - Metronome: added auto mode, volume and type - UNDO + note pad to remove note from current sequence New modules - Custom rack - Randomizer - instantly randomize any number of parameters within the given range (polyphonically) - Punch in FX - Punch in looper - Fur generator - Shift register - MIDI gate - Convolver - Added standard Apple Audio Units (iOS16) Upgraded modules - Audio Unit MIDI module - REC button added - Shaper: clip mode added. (alias supressed) - Function module: equality operation added - Rack menu: randomize function - Analog filter: new MM12 OB multimode filter - Oscillator mini: added sqr-sine and sine-pw oscillator type - New Integrator module - works with clock signal (option), min, max and warp type. Old integrator moved to MISC / Legacy section - Shift register module - AU modules - AU inputs were not enabled when corresponding module input was connected Various bugfixes and stability improvements. 2.20 12/19/2022 Fixed: recording with auto-grow enabled caused all clips in the pattern to grow. 2.12 07/02/2022 - Fixed: audio engine freeze in Drambo AUv3 FX plugin. 2.11 06/26/2022 - Formants extension (IAP). Contains 2 modules: Formant oscillator and Formant filter. - Improved UI performance - Fixed: crash while modulating comb filter (rare) - Fixed: crash while modulating pulse oscillator PW (rare) - PC generator module: program p-lock is not removed on note events - Improved: momentary behaviour of MIDI mapped TRK and PAT buttons - New shortcuts: pattern pads: UNDO + pattern pad to clear a pattern, track pads: UNDO + track pad to clear a clip - Integrator module has Reset input now - Fixed: patterns switch may result in doubled notes at certain BPM - Fixed: various issues with MIDI mapped interface buttons 2.10 06/24/2022

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Previous Versions

Here you can find the changelog of Drambo since it was posted on our website on 2022-01-03 13:23:48. The latest version is 2.53 and it was updated on 2026-06-24 13:02:54. See below the changes in each version.

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