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Music visualizer and sequencer.

K Machine

  • iOS
  • Available

A live-oriented audiovisual instrument: an audio sample sequencer and a vertex shader sequencer in one app.

View in the storeProduct website
K Machine audio controls over a generative vertex-shader animation on iPhone

K Machine is a live audiovisual instrument for creating dynamic animations that react to sound and touch. Designed for musicians, VJs, shader enthusiasts and animation lovers, it combines an audio sample sequencer with an original vertex shader sequencer and an automatic transition interpolation engine.

One instrument, three ways to play

VJing tool. Feed K Machine from the microphone or any Audiobus-compatible app and perform with responsive visuals.

Sound creation tool. Start from the empty shader and focus entirely on the audio sequencer.

Complete audiovisual instrument. Sequence sound and visuals together, then shape transitions and shader parameters live.

Bring your own sounds and visuals

Audio. Import 16-bit, 44.1 kHz WAV and AIFF samples through iTunes File Sharing, AudioShare, Audiopaste or the Open in… menu.

Visuals. Use more than 30 bundled vertex shaders and four commented examples, or import your own code from an external editor. The format remains compatible with vertexshaderart.com, and one line of code can expose up to eight live parameter controls.

A flexible sequencer

Every loop can have its own BPM and number of beats. Events can be divided into 1/3, 1/5, 1/7 or 1/11, making polyrhythmic and evolving structures straightforward to build.

Built for live performance

Capture instantly. Record the current session from inside the app; the finished video is saved to the photo library and is ready to share.

Use a second screen. Connect an HDMI or VGA adapter to send only the visual output to a projector while keeping the interface on the device.

One purchase, two form factors. K Machine is a universal app for both iPhone and iPad.

Connected workflow

Ableton Link keeps tempo in sync. Audiobus 3.0.3 and Audiobus Remote connect K Machine to other music apps and devices, while AudioShare, Audiopaste and Audiostore support sample import and editing workflows.

Availability and compatibility

K Machine is available on the App Store for $8.99. Version 2.77 requires iOS 9.3 or later on iPhone, iPad or iPod touch. The App Store also lists Apple M1 Macs running macOS 11.0 or later, while noting that the app has not been verified for macOS. It is rated 4+, is available in English and supports Family Sharing.

Privacy. The App Store privacy declaration states that K Machine does not collect data. The app is developed and sold by Dominique Baillot.

Performance note. K Machine reaches its full potential on OpenGL ES 3-capable devices; consult the documentation to confirm device compatibility.

Screenshots

  • K Machine audio controls over a generative vertex-shader animation on iPhone
    Audio mixer, equalizer and effects over the live visual engine.
  • K Machine full-screen generative vertex-shader animation on iPhone
    Full-screen audiovisual performance view.
  • K Machine loop tempo and track controls on iPhone
    Per-loop tempo, beats and audio-track controls.
  • K Machine visual sequencer and shader parameter controls on iPhone
    Visual sequencer with live shader parameters and transition control.
  • K Machine audio-track sequencer and effects controls on iPhone
    Audio-track sequencer with tempo, pitch and effect automation.
  • K Machine audio mixer and generative shader interface on iPad
    Expanded iPad workspace for mixing audio and visuals.
  • K Machine full-screen vertex-shader performance view on iPad
    Full-screen shader performance on iPad.
  • K Machine loop and audio controls beside a vertex shader on iPad
    Loop timing and audio processing beside the live visual output.
  • K Machine track sequencer with flanger, gate and delay controls on iPad
    Track sequencing and effect automation.
  • K Machine visual sequencer and shader controls on iPad
    Live visual sequencing and exposed shader parameters.

Releases

Releases of K Machine

All releases
  1. 01

    K Machine

    K Machine 2.77

    Minor corrections to domain links and documentation.

    Version
    2.77
    Date
    14 September 2021
  2. 02

    K Machine

    K Machine 2.76

    Corrected display problems on iPhone X and fixed minor bugs.

    Version
    2.76
    Date
    5 March 2019
  3. 03

    K Machine

    K Machine 2.75

    Minor fixes and framework changes required by App Store validation rules.

    Version
    2.75
    Date
    10 February 2019
  4. 04

    K Machine

    K Machine 2.74

    Updated Everyplay and Audiobus, fixed a low-memory file-opening crash, expanded documentation and improved the post-recording workflow.

    Version
    2.74
    Date
    3 October 2018
  5. 05

    K Machine

    K Machine 2.73

    Fixed iOS 11 second-screen resolution, low-memory soundBuffer crashes, Audiobus Remote icons and Photo Library permissions.

    Version
    2.73
    Date
    27 November 2017
  6. 06

    K Machine

    K Machine 2.72

    Fixed Everyplay video sharing, first-login panel behaviour and social links on iPhone, while retaining the major additions introduced after 2.62.

    Version
    2.72
    Date
    19 November 2017
  7. 07

    K Machine

    K Machine 2.71

    Major Audiobus, audio-effects, GLSL and performance update with 25 new shaders, advanced transitions and up to 1,048,576 vertices.

    Version
    2.71
    Date
    17 November 2017
  8. 08

    K Machine

    K Machine 2.62

    Fixed the AudioShare issue introduced in 2.61 while retaining all 2.61 features.

    Version
    2.62
    Date
    19 September 2017
  9. 09

    K Machine

    K Machine 2.61

    Added Ableton Link, ZIP project exchange, broader Open in support, shader import through AudioShare and major sequencing improvements.

    Version
    2.61
    Date
    15 September 2017
  10. 10

    K Machine

    K Machine 2.04

    Added animation start/stop, AudioPaste, precise loop editing and transition controls, with extensive stability and performance fixes.

    Version
    2.04
    Date
    13 June 2017
  11. 11

    K Machine

    K Machine 2.01

    Fixed touch mapping, Help, special-character paths and the three-band equalizer, and added three GLSL shaders.

    Version
    2.01
    Date
    18 May 2017
  12. 12

    K Machine

    K Machine 2.0

    Complete redesign with sample and GLSL import, unlimited loops, project files, parameter sequencing, touch mapping and second-screen output.

    Version
    2.0
    Date
    12 May 2017
  13. 13

    K Machine

    K Machine 1.0.1

    Minor bug fixes and an early preview of the audio and visual controls planned for K Machine 2.

    Version
    1.0.1
    Date
    18 May 2016
  14. 14

    K Machine

    K Machine 1.0

    First public release of K Machine.

    Version
    1.0
    Date
    7 May 2016