Hokusai

Multitrack audio editor for iOS

With Hokusai it’s easy to record or import a track, and make it sound awesome: not just trimming the ends, but full cut, copy, paste and delete, and a suite of filters and special effects.

Download on the App Store

Edit many tracks side-by-side, mix them together, and export to wave or MPEG 4 (AAC) format — then transfer them to your computer via USB or Dropbox, or send them to another app on your device.

At A Glance

Uncluttered interface

Simple, uncluttered interface. Focus on your tracks.

Pinch Zoom

Standard pinch/swipe gestures to zoom and scroll your tracks. Fast, smooth response. View the whole length of your track or dive in to see each peak.

Drag to select

Drag a finger to select audio — the bubble shows exactly where you are. You can hear the audio under your finger, too, with live scrubbing. Sadly, we can’t show this in a screenshot :)

Editing tools

Cut, copy & paste, delete or trim selections. Apply FX and filters by tapping “More…”

Full undo/redo

Full support for undo and redo. Tap the buttons on iPad, or shake your iPhone to pop up the menu. As many levels as space allows.

"Magnifying glass" sliders

Magnifying glass sliders: up to 8x more control over settings. Drag a slider up or down to set the zoom level.

Mini keyboards

Use mini keyboards to easily set frequencies to a standard pitch.

Hokusai will convince you that audio was meant to be edited with a touch screen — it's just so natural within this app that you'll find yourself consistently coming back to it.
iOS Music And You

Hokusai contains some icons by Joseph Wain/glyphish.com