brainwave performance, EEG + SC + Jitter

[JesterN Alberto Novello]

After having "molested" the list in the last two months with questions and doubts,

i finally completed my performance involving EEG detection, butoh dance and multiple visuals.

It was presented at the Institute of Sonology, the Royal Conservatory, Den Haag, last 2nd February.

It will be presented in Italy next summer and other locations.

The sound is all live-generated in SC, using pattern re-definition (Pbindef) based on the EEG signal,
and the visualization in Jitter.
You can find two video excerpts here, a summary:
http://dindisalvadi.free.fr/Fragmentation.html
and the whole piece:
http://dindisalvadi.free.fr/Fragmentation1.html

I thank the list for the useful and always quick help (it's very precious when you have a deadline!!!)
and Jakob Leben (the QT master) for helping me unveiling some of the secret features of the eeg hardware...
Cheers
Alberto



Website:
http://dindisalvadi.free.fr/
http://soundcloud.com/jestern
http://www.vimeo.com/jestern

[Krisztian Hofstadter]

Hi Alberto,

... looks and sounds very interesting! Was it difficult the get the EEG
signal
into SC? Did you use any FFT or any DSP on the raw signal or do the used
signals
(left-forward-right) come from the hardware chip?

best, K

Post by JesterN Alberto Novello
After having "molested" the list in the last two months with questions and doubts,
i finally completed my performance involving EEG detection, butoh
dance and multiple visuals.
It was presented at the Institute of Sonology, the Royal Conservatory,
Den Haag, last 2nd February.
It will be presented in Italy next summer and other locations.
The sound is all live-generated in SC, using pattern re-definition
(Pbindef) based on the EEG signal,
and the visualization in Jitter.
http://dindisalvadi.free.fr/Fragmentation.html
http://dindisalvadi.free.fr/Fragmentation1.html
I thank the list for the useful and always quick help (it's very
precious when you have a deadline!!!)
and Jakob Leben (the QT master) for helping me unveiling some of the
secret features of the eeg hardware...
Cheers
Alberto
http://dindisalvadi.free.fr/
http://soundcloud.com/jestern
http://www.vimeo.com/jestern

[JesterN Alberto Novello]

This post might be inappropriate. Click to display it.

[Krisztian Hofstadter]

Hi Alberto,

... thanks for the detailed reply. Sounds like a lot of work in the DSP
area!
So far I used IBVA (too much hassle with the headband) and the NeuroSky
(just using
attention and meditation level straight from the hardware chip), but always
thought of giving the Emotive a go... maybe I will in the near future...
and then,
I'm sure I will ask you for some advice :)

all the best, K

Post by JesterN Alberto Novello
Hi Krisztian,
thanx. I used an EMOTIV Epoc which comes relatively cheap, 250 - 300
euros including shipping. They deliver some esotheric software which
has not real charm or me. The problem is to get the raw data, which is
not provided (although present in the signal). They sell it for 2500
but i couldn't afford it so i figured out a way of accessing it,
together with Jakob. From the raw data it's easy to send it via OSC
and then you can apply your DSP routines and FFT, for which SC is the
best option. I tried Max at the beginning for rapid inspection but it
was just very inaccurate. I used the Signal class and got an easy FFT.
But for what i do i just use lots of training in the time domain and
compare the real time input with the trained "templates" with
correlation. It works more or less reliably. Depends a lot on the
positioning of the headset, humidity, training time, etc.. Rather
unstable within the limits, it's not a good controller if this is what
you're looking. For me for it's more a bet on extracting something
from the brain that is just patching its low frequency noise to some
synth control. I managed to detect three simple ideas and thought of
an easy control out of them...
if you need some help with the hardware i'm available to give directions..
A
http://dindisalvadi.free.fr/
http://soundcloud.com/jestern
http://www.vimeo.com/jestern
------------------------------------------------------------------------
*Inviato:* Lunedì 13 Febbraio 2012 22:10
*Oggetto:* Re: [sc-users] brainwave performance, EEG + SC + Jitter
Hi Alberto,
... looks and sounds very interesting! Was it difficult the get the
EEG signal
into SC? Did you use any FFT or any DSP on the raw signal or do the
used signals
(left-forward-right) come from the hardware chip?
best, K

Post by JesterN Alberto Novello
After having "molested" the list in the last two months with
questions and doubts,
i finally completed my performance involving EEG detection, butoh
dance and multiple visuals.
It was presented at the Institute of Sonology, the Royal
Conservatory, Den Haag, last 2nd February.
It will be presented in Italy next summer and other locations.
The sound is all live-generated in SC, using pattern re-definition
(Pbindef) based on the EEG signal,
and the visualization in Jitter.
http://dindisalvadi.free.fr/Fragmentation.html
http://dindisalvadi.free.fr/Fragmentation1.html
I thank the list for the useful and always quick help (it's very
precious when you have a deadline!!!)
and Jakob Leben (the QT master) for helping me unveiling some of the
secret features of the eeg hardware...
Cheers
Alberto
http://dindisalvadi.free.fr/
http://soundcloud.com/jestern
http://www.vimeo.com/jestern

[JesterN Alberto Novello]

This post might be inappropriate. Click to display it.