iPad Screenshots


Sliver is a powerful tool for soundscape and sonic texture creation.

Working beautifully with any audio content... melodic, rhythmic, noise, or otherwise, Sliver is well suited for a broad range of project types including:

Sound Design / Sound Effects
Unique Sonic Textures
Cinematic Sound Elements

Creating a playable instrument from any sound.

The core of Sliver is the 4 real-time resizable clips (slivers) that can be moved around the waveform. Each sliver has it’s own channel with independent volume, pan, filter, and sliver size. These controls can be set in motion with Sliver's automation engine. Sliver uses a real-time automation system to movement in your textures. This system also allows for override to be able to shape the ongoing captured performance. The filters and size windows are controlled by XY pads, giving Sliver a natural playability, creating a new type of instrument.

Touching along the waveform places, moves, and sizes the slivers, allowing you to intuitively scrub the waveform with a variable loop size.

A chain of effects assigned to XY Control pads allows you to shape and mangle the sounds produced by the slivers.

You can Automate every control.

Sliver uses Apples UIKit Dynamics to create physics on the XY Pads, allowing customized settings for the controls to shape the sound randomly with physics.

Sliver supports Audiobus, sitting in an input slot.
You can import samples via AudioShare import or Audiocopy.
You can resample, record your own samples via the Mic, or do both at once.

This app uses Background Audio and Records from the Mic. You will see a red bar when placing the app in the background.

Sliver supports MIDI learn and is fully controllable from Virtual, Network, and MIDI hardware.

Make some noises, mangle some sounds, create your own soundscape.

4 Real-time Manipulation Slivers
4 Independent Audio Channels
Full Automation Control
Apple UIKit Dynamics Physics Controls
8 X/Y Pad control
Touchable Waveform
Low Pass Filter
Temp Sync'ed Delay
Realtime Pitch-shifting without effecting Time Domain (TimeStretch)
Audiobus Support
AudioShare Import/Export
Email Import/Export (Sounds and Presets)
Sample Recording
Playable Virtual Keyboard
MIDI (Virtual, Network, or Hardware)
MIDI Learn
40+ Factory Samples
60 Factory Presets

What’s New

Version 1.05

Made the waveform brighter and higher resolution.
Fixed bug in File and Preset Loader.
Prepended preset name to recorded files if you are recording a presets output.
Added user created sounds to preset export via email.
Added a flash background function when clearing all data.
Added a red background function when recording.

Ratings and Reviews

4.1 out of 5
8 Ratings
8 Ratings
anickt ,

Great app...

But it really needs an update. That being said, it still does some cool stuff.

mrdogheadSHoGoAT ,

Another creative, exciting Mathieu sound/music development tool

If I have to read another genius review calling an app a “toy” and not (pick a word for some category of thing we are meant to presume is somehow better than a toy and insert it here), a piece of my poor, unreality-damaged American brain will likely shrivel down to a useless stump. At which point, I suppose, I will cease to register bull dink until such time as the brain can regenerate a new meaninglessness meter. If I can get to a place detached from the internet and news of White House briefings.

Enough of that.

Sliver is not perfect. It really could benefit from basic usability updates focused on bringing precision and control to the creative chaos it brilliantly brings to music making and sound design. When I want some inspirational sound mangling that is nonetheless musical, Sliver provides it. Bringing it to heel, however, is real work. To some extent, it cannot be done. This lack of parameter precision is not a fatal flaw, but it does limit how and when I use the app.

I would use Sliver much more often and put it to better use if I could impose a little bit more method onto the frequently lovely madness it encourages. It would not be a huge amount of development work to add more numerical control to or along with the blocks and the X/Y pads, for example. Yet even those changes would much improve usability.

My use of the app revolves around copying audio into Sliver, making something almost completely different, recording the result, and exporting/copying that recording to some other app. I suspect this is the intended workflow, and that is fine by me.

There is no reason to hesitate about getting the app if you need some craziness in your music. But there is at the same time ample reason for Alex to make some UI and functional changes to increase the scope of what Sliver can do.

Ben Efitofadoubt ,

Just rediscovered this beauty

Excellent soundscaping instrument.
Also, check out the same developer's Glitchbreaks. It's another winner.


Alexander Matheu
34.4 MB
Requires iOS 7.0 or later. Compatible with iPad.
Age Rating
Rated 4+
© Alex Matheu


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    With Family Sharing set up, up to six family members can use this app.

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