[sdiy] Brainwave2MIDI, has NE1 tried this?

[S. Kuehnl]

--- Jaco Sloof <jacosloof at yahoo.com> schrieb:
> Hi List, 
> 
> Sorry about the long time no posts,
> 
> I've been quite busy experimenting with different
> MIDI-Controllers
> but i'm still lurking here!
> (also saw the MICE-controller thing, way cool)
> 
> I tried the basic Knob-box, different
> endless-rotary-encoder-boxes,
> Fader-boxes,Light control, BUT:
> 
> This struck me.. (see attached link)
> http://www.ibva.com/Step1/Step1.html#midi
> 
> Anyone tried this? Is it for real?
> 
> Thanks in advance, Jaco Sloof
> 

Hi Jaco,

I don't know about this specific instance, but the
idea is for real. In (since?) the 70s composer David
Rosenboom worked with brainwaves to control (interact
with?) synths. Buchla made the "model 276 EEG signal
conditioner" for him, which AFAIK is basically a bunch
of infrasonic bandpass filters to seperate the various
bands that correspond to the various states of brain
activity, from strees to deep sleep.

The wave file editor Cool Edit 96 had a "brainwave
synthesizer" function, which is a different animal
than a br. analyzer, but the manual contains general
information you might find useful. If anyone is
interested let me know and I'll send it in a private
email (230K file).

Question: I would be interested if the brain activity
spectrum allows only a purely *linear* measurement
that cannot hint at associated emotions (e.g. does the
subject's stress *level* reflect an orgasm or a fear
attack?), or if there rather is a complex waveform
comprised of the various bands being active in
parallel (think additive sythesis) so that the
*combination* of parallel activities may tell
something about the *type* of activity (the associated
emotions)?

Sebastian Kuehnl



	
		
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