Brusmaskin

Pocket groovebox & sampler

Free · Designed for iPad. Not verified for macOS.

Brusmaskin is a pocket groovebox — an 8-track synthesizer, sampler and sequencer for making complete tracks wherever you are. SEVEN SOUND ENGINES FM synthesis with a subtractive filter stage, a raw mono synth with drive and wavefolding, a lush 7-voice supersaw, a dedicated drum synth with FM percussion, filtered noise and attack transients, a plucked string (Karplus–Strong) with a pick that changes every note, and GRAIN — a granular engine that plays any sample as a cloud. Plus a sampler with stereo samples, slicing, key-mapped chopping, non-destructive trim and a start offset for ghost notes. The same audio plays both ways — sampler or cloud — with zero copies. RESAMPLE YOURSELF Capture any track with one button — it keeps playing while the recording runs through its own private effects, so the take carries the filter, the drive and the track's own reverb and delay tail, in stereo. Then listen and choose what it becomes: a sample, a grain cloud sliced on the hits, or a playable kit where each note is one hit. Or record from the microphone, or GRAB the last 30 seconds of the master — the take you just played but forgot to record is still there. DEEP MODULATION Three envelopes and three LFOs per sound, each with three freely routable destinations — and every target lives on every engine. Vibrato on a sample, a moving noise filter on a drum, an LFO that rechops a break on every note, an envelope that scrubs a grain cloud through a field recording. HOLD, CURVE and END floors turn envelopes into drones. DEEP STEP SEQUENCING Per-step trig conditions, probability, ratchets with pitch rolls, swing, and patterns up to 128 steps with independent speed and length. An arpeggiator with chord pools, inversions and free-run mode. Sound locks put a different sound on any step, and per-step parameter offsets shape your sounds over time. SONGS, NOT JUST LOOPS Chain patterns into parts, phrases and full songs. Perform live in the performance view, mix with per-track faders, and glue everything together with chorus, delay and a rich plate reverb. Sidechain ducking built in. HANDS ON MIDI learn maps any knob, fader or button on your controller to sounds, mixer faders, mutes and solos — with soft takeover so nothing jumps. 576 factory presets cover every engine, and an INIT patch per engine gives you a clean starting point when you want to build from scratch. YOURS Projects and sample banks are stored in iCloud Drive as plain files you can see and back up. Scale-aware note entry, a built-in browser of vintage drum machine sample packs, and video import that pulls the audio straight out of a screen recording. No account, no subscription, and everything works completely offline.

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MASTERING — EXPORT AUDIO now finishes your song like a release: the mix is measured (EBU R128), raised to the target and the peaks are caught by a transparent true-peak limiter. Pick STREAM (-14 LUFS), LOUD (-9) or CLUB (-7) — the choice is remembered across projects, so a whole album gets the same loudness and the same character. ADJUST THE RECIPE — tweak the LUFS target itself, TONE (one darker/brighter tilt), GLUE (gentle bus compression) and WIDE (a stereo lift). MASTER A TAPE — the cassette view masters your jam to a new tape ("· M"). The original stays untouched, so you can A/B them from the list. THE DRUM GROWS A BODY — BODY puts a resonant skin under the hit: four modes struck by the transient, ringing on their own clock. BODY TONE morphs the material from tom membrane to bell plate; harder hits excite it more, not just louder. Eight new presets built on the skin. METAL, ITS OWN VOICE — the 808 cymbal's two paths, for real: the six-square metal stack now has its own attack and decay, so a ride can ping fast while the noise wash rings on. And GRAIN thins the noise into 909 grit, crackle and dust. EVERY DRUM PART ON ITS OWN TIME — tone, noise, metal and body each carry their own attack and decay; the drum's envelopes are pure modulation now. Old drum sounds migrate automatically. A SWEETER ENGINE — anti-aliased oscillators (high leads stop fizzing), constant-power pan and chords, smoother sample playback, and the same sound at every sample rate. PUSH MIRROR — turn the phone to landscape with a Push connected and the screen becomes the Push 1 display in large format.

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

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Provider
    • Mattias Ahlstrom
    Size
    • 23.3 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 and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Mattias Ahlström