[sdiy] Random Voltage Generation

[David Halliday]

Our neck of the woods recently had an earthquake ( the Nisqually about three
months ago ) and someone took the seismo data, converted it to a MIDI file
and used that as the lead.  The then "orchestrated" some fill and it sounds
pretty interesting!

They did the same for the Loma Preita quake in San Francisco and the quality
of the music was quite different.

This might be a fun thing to work with...

-> -----Original Message-----
-> From: owner-synth-diy at dropmix.xs4all.nl
-> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Grant Richter
-> Sent: Tuesday, August 14, 2001 11:18 AM
-> To: owner-synth-diy at dropmix.xs4all.nl
-> Cc: synth-diy at dropmix.xs4all.nl
-> Subject: Re: [sdiy] Random Voltage Generation
->
->
-> That is not that far out.
->
-> If you consider you could build a mechanical system (say
-> pendulums with
-> magnets) record the movements onto computer, and then play
-> them back at high
-> speed to shift the waveforms into the audio range.
->
-> There is probably tons of slow datalogging files that could
-> be reformatted
-> to "fool" the computer in thinking it is an audio file.
->
-> I think someone tried that with a years worth of seismic
-> data. And then
-> there was the "Earths Magnetic Field" record.
->
-> > I suppose next someone could build a mechanical analog
-> synth (I picture the
-> > front panel work of the Bergfotron on steroids) that saves
-> the results by
-> > cutting grooves in a plastic disc like the RCA Mark II.
-> Wouldn't even
-> > require any tubes or BBD's to operate...
->
->
->