Werner Kaegi

What is Vosim?

The VOSIM Sound Synthesis System

The VOSIM model is invented by Werner Kaegi in the sixties and seventies and was published the first time in 1973. Kaegi worked with the VOSIM model in the very early time of digitalization on two DEC-PDP-15 computers. Thanks to the wonderful collaboration with technicians and his college Stan Tempelaars of the Institute of Sonology he could develop a state-of-the-art system of soft- and hardware.

The VOSIM-system was first implemented in two parallel hardware generators, which could be controlled from the DEC computers. Between 1973 and 1980 Kaegi developped his composition-system MIDIM to feed the generators. In the many years the setup functioned, hundreds of international and national students/composers followed the lectures Kaegi gave and many compositions were created with MIDIM/VOSIM.

The VOSIM gained international interest as one of the promising sound synthesis systems. Kaegi was at that time present at all the main congresses in the field and his sound examples made a wide impression on colleagues in the field of music, but also in speech synthesis. 

The MIDIM-system was entirely programmed in FORTRAN and after the closure of the Institute of Sonology in Utrecht, the system ran for some more years on Atari ST computers.

If you are interested in VOSIM, there are some programs available (see download).



>>> VOSIM-A New Sound Synthesis System (Interface 1978) 

>>> MIDIM/VOSIM Reports (Interface 1986)



Summer 2023 Archivation of Master Tapes

The tape archive of Werner Kaegis works is incorporated in the Sonology Archive in The Hague. The main works will be digitalized from the original master tapes. We hope that most of the electronic works will be published in the next years!! We are very happy that finally this wonderful material can be saved for the future.

New VOSIM66 software by Heinerich Kaegi

Between 2020 and 2024 Heinerich Kaegi and Ludger Hurts developed a new Vosim programm VOSIM66 based on the original ideas of Werner Kaegis Vosim and Midim systems. This programm is created in GNU Octave and runs on Windows, Mac and Linux. See www.vosim.eu


New version of VOSIM generator software by Luuk Trip

Luuk Trip developed in 1999 a Vosim generator software VOS2WAV based on the original Vosim 7 vector. Meanwhile Luuk has adapted his VOS2WAV system for Windows 10. For more information, please mail us.


New scores available soon

Scores of several old compositions of Werner Kaegi will be soon available!

Seitenanfang | Copyright 2014 Werner Kaegi | Powered by CMSimple_XH | Webdesign by Film & Media Design | Login