A major update of TWO is now available to download!

There’s also a new Discourse based forum: Please head to to discuss TWO, using OSC, OSC Query, or anything else you feel is relevant.

TWO for Windows

TWO for Windows – Version 0.10.1

(The previous TWO for Windows build – Version 0.9.25)

On Windows TWO is now 64bit since, meaning you may have to uninstall your previous 32bit build separately from installing this new version.

TWO for Max OS

TWO for Mac OS – Version 0.10.1

(The previous TWO for Mac OS build – Version 0.9.25)

Depending on how recent your version of OS X is, auto update may not work – instead you should uninstall the previous version, and install the latest from this download page.

This download is not Apple-signed. To install you therefore need to:

  1. In the Finder, locate the installer. Don’t use Launchpad to do this, it doesn’t allow accessing the shortcut menu.
  2. Press the Control key, then click the installer icon.
  3. Choose Open from the shortcut menu, and Click Open.

Note on OS X: The above OS X download does contain the AudioVisualBach example, but on my own Mac, following a software update the example only works if you start TWO first, then load the .two file, and only in the end you start the AudioVisualBach program. On Windows the sequence doesn’t matter.

Getting Started:

Below is a video on how TWO and the included example work together:

Note on Windows: This MAY still be an issue for some, if you run Windows 10 with old Graphics card drivers. Following the (Dec. 2017) Windows 10 Creators update, a few people have reported that TWO may not run on their computer. This is due to a bug between NVIDIA graphics drivers, and the Windows update, which affects several applications, including TWO, and even the Microsoft Visual Studio Installer, and NVIDIA’s own “GeForce Experience” software. For TWO to run:

  1. Right-click on desktop, start the NVIDIA control panel.
  2. Make sure the drop-down menu option “Desktop->Add “Run with graphics processor”  to Context Menu” is enabled.
  3. Right click on the TWO icon, and chose  “Run with Graphics Processor->Integrated Graphics”. TWO will now work without problem.