Contracting work for mtronix, a Berlin company that specializes in precision measurement instruments. In mpd502 ‘pd’ is for ‘partial discharge’ which equates to energy lost along a power line. To measure this is crucial in determining the condition of the power system with the aim of being able to replace it just before it fails. mpd502 is built around the same processor as the gluiph, the TriMedia.


As visitors probe a dictionary database, with each newly found word a frame is erased from a series of monkey clips and replaced with a solid colour. 51600 words – 51600 frames – 51600 colours, a price for every 1000th word found. Words spoken by speech synthesis, artist in gorilla costume explaining concepts, handing out prices. [more]


Contracting work for twosuns, a Berlin multi-media company. Twister is part of the sound subsystem of enclued, an interactive multi-media development environment. Initially a multi-channel soundcard with embedded spatialization functionality, which was later moved to the host PC.


Computer aided score generation of Balinesian Gender Wayang music, based on multi-channel envelope recordings. The recording system required a custom acquisition system as multi-channel audio interfaces were not available in the early 1990s. It was implemented by Thomas Ruoff and Pierre Dutilleux at FH and ZKM, Karlsruhe. I was involved in the later stages that dealt with the analysis of the accumulated data. Most of this was done in Matlab and its signal processing toolbox. Finally, a custom notation system was devised to take the specific playing styles into account.


Traguisma – the TRAnsient GUItar State MAchine. Or, if you prefer the official title: ‘Algorithms for Combined Sound Analysis and Synthesis and their Implementation in a Multi-Processor Environment’.

This was to become a ‘Diplom-Informatiker’, my graduation project. In short it was about improving guitar synthesizer, with a focus on the attack phases of a pluck, in particular re-plucking a string that’s already vibrating.

The intended target platform was GWIZ’ Infinity Box, but as this project was cancelled, I implemented it on CNMAT’s multi-DSP box Reson8.

Here’s the PDF

30 years of custom technology for musicians and artists