By John P. Flight

During our research and experimentation many processes have been transfered into the audio frequency range and recorded on magnetic tape. Presented here are selected recordings, each one editted into a composition of, what one could call, electronic music or organized electronic sound.
The auditory display techniques applied during research and simulations were performed by Ed Prism and John P. Flight. Composition supervising was done by Mr. Carl Edda.
Graphic recordings have been editted and filed by Joline LeRovan.

General procedure
The various voltage signals in a simulated system can be transfered into both audio and sub-audio. Each voltage represents a coefficient, initial condition, and stimulus-response parameter within the total system, and is varying over time-space coordinates during the process. The inter-relations of all voltages at specific time-space frame intervals are of particular interest.
Our machine room contains a range of apparatus to assign the signals for control or direct analog generation, processing, and computation obtaining an ‘auditory display’ of the systems behavior. This sonification assures scientific analysis to obtain non-material components of information otherwise obscured and hided. That information is the main research target of this vessel.

The reader is referred to papers published at log673, and the ships reference library for research design and theoretical handling of the subject matter.
Several auditory record files can be found in the following register:

1- Guidance System (Prism)
3- Multi-level signalling and fading (Flight, Prism)
4- Circle Map (Edda, Flight)
5- Sampled-data system (Edda, Flight, Prism)

All analog recordings (Copyright log673) were subjected to digital computation for presentation onto this current medium.