Projects / Wechselspieler


Wechselspieler is a tool for mapping motion data from a video stream onto sound events in the MIDI and OSC protocols. It features a GUI for easy selection of trigger regions in a video stream and mapping these to individual sound events. It supports various video input sources, such as Video4Linux devices, movie files, and FireWire cameras. As output, it supports ALSA based MIDI devices and the UDP based OSC (OpenSoundControl) protocol for integration with MIDI hard/software and OSC-capable software like PD, SuperCollider, and Max/MSP.

Operating Systems

Recent releases

  •  13 Oct 2007 22:05

    Release Notes: This release fixes some GUI bugs concerning the start of video input and, more importingly, one that relates to the proper display of the selected regions and many more.

    •  30 Aug 2007 21:08

      Release Notes: This release features some updates related to Debian Etch compatibility, some fixes and minor changes in the GUI, and general code cleanup.

      •  13 Feb 2006 22:04

        Release Notes: The last release introduced some bugs. The Video4Linux input selection didn't work and the automatich rasterisation of the video input area was broken. This is fixed now.

        •  31 Jan 2006 18:37

          Release Notes: This release feature two main improvements. The MIDI output device is selectable if your machine has more than one (e.g. a USB device). The FireWire input code has been reactivated. There seems to be a bug in the GStreamer library leading to a latency between the camera and captured image growing over time. The UI and code have been polished.

          •  16 Dec 2005 19:21

            Release Notes: This release fixes a bug that resulted in a program crash when some dialogs were opened.


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