[EEG] open eeg/ocz nia "success"
hurtstotouchfire at gmail.com
Mon Oct 5 14:18:35 PDT 2009
Also, specifically, I think the last time we addressed amplifying the
cap is here: https://www.noisebridge.net/pipermail/eeg/2009-June/000075.html
There were some hardware concerns that I sorta kinda understand, and
Jonathan, maybe you guys have already gotten a handle on this?
I would be up for meeting next week if we think that momentum
justifies it. Hopefully other people that know more about the
hardware can show up, because I basically sit there and know about
brains and ask hardware questions.
On Mon, Oct 5, 2009 at 9:35 AM, Jonathan Foote <jtfoote at ieee.org> wrote:
> Hey Josh,
> Welcome! Our group has lost a little momentum so it's great to hear
> from new people.
> Our grand plan was to build a multi-channel rig using multiple
> OpenEEG boards. Several of us have built two-channel versions; the
> digital motherboard will support up to six (three analog boards). We
> have acquired a 19(?) -electrode head cap and Tracy built a nice
> enclosure with mini-XLR jacks. We have some neurobiology, signal
> processing and machine learning expertise on board, so now I think all
> we need to do is to put everything together!
> If you want to, skim the mailing list archives
> https://www.noisebridge.net/pipermail/eeg/ and we look forward to
> meeting you in person.
> (To the group: I noticed our wiki page either disappeared in the reorg
> or never existed, so I made one: https://www.noisebridge.net/wiki/EEG)
> On Sun, Oct 4, 2009 at 11:56 PM, Josh Bailey <josh at anarkiwi.com> wrote:
>> What an inspiration it is to have other local enthusiasts. Found I had an
>> obsolete motherboard with a real parallel port on it, and lashed it
>> together long enough to run Linux off of DVD and run sp12 on it.
>> Now my openeeg is breathing and I can get a test pattern all the way
>> through from the analog board. Nice.
>> I suppose the next stage is electrodes. Oh well. Back to the day job for
>> On Mon, 5 Oct 2009, Josh Bailey wrote:
>>> Hi all;
>>> Am completely new to the group; happy that there are other people local
>>> playing with this stuff!
>>> Seen some discussion re both OpenEEG and the OCZ NIA.
>>> I have an OCZ NIA and have gotten some joy, with some very very hacky code
>>> just reading from Linux USB HID "stack" (on taking this guy to pieces it's
>>> seems to be just an audio b/w stereo DAC that just streams samples at you
>>> all day long):
>>> I freely admit I have no real clue, but I think I have gotten beta out of
>>> it at 28Hz (and a big 60Hz spike where I expect it to be). Perhaps someone
>>> with more clue than I would care to venture an opinion as to whether my
>>> results are plausible? I'll happily share my code with other OCZ owners
>>> (well, anyone really).
>>> If I'm going in the right direction figured it might make more sense to
>>> record a lot more data (say, overnight), so ICA has something to feed on.
>>> Bit challenging with this device as it's only two channels, the electrodes
>>> are pretty perspiration sensitive, and the device's grounding SUCKS!
>>> Regarding OpenEEG - I have built up both an analog and digital board pair,
>>> but I don't have an old Windows box to program the Atmel on the digital
>>> board (I'm an all Linux/Mac shop, one has one's principles).
>>> I don't suppose anyone would happen to be willing to flash my Atmel so I
>>> don't have to buy an old clunker and put Windows on it? Programmer won't
>>> work under Vista because of excessive parallel port HAL, and it wants to
>>> bit bang - I think - I am not a strong enough Windows guy.
>>> Last thing. Friend of mine at the VA is studying whether concussion
>>> injuries can be diagnosed by EEG. She keeps claiming to be able to give me
>>> some 256-channel recordings - I will follow that up. If it's OK with
>>> her/ethics/anonymised and all that will seek permission to obtain and
>>> share it (at the very least may be a good control set vs. homebrew).
>>> Sorry for the long post,
>> Josh Bailey (josh at anarkiwi.com)
>> EEG mailing list
>> EEG at lists.noisebridge.net
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