From: Rob Sacks (editor_at_realization.org)
Date: 2002-02-18 19:35:55
Hi Jim,
P.S. It might be a good idea to use EEG files for
this purpose that were generated with machines
that are capable of very high accuracy. I think
there are some files of that sort available for free
download on the web that use the standard EDF
file format.
I just searched real fast for a minute and came
up with this:
http://www.neurotraces.com/scilab/scilab2/node25.html
http://www.clinilab.fi/neteeg.htm
Best regards,
Rob
----- Original Message -----
From: "Rob Sacks" <editor_at_realization.org>
To: <buildcheapeeg_at_yahoogroups.com>
Sent: Monday, February 18, 2002 2:09 PM
Subject: Re: [buildcheapeeg] BWView
> Hi Jim,
>
> That's extremely cool! Nice job!
>
> Rob
>
>
> ----- Original Message -----
> From: "Jim Peters" <jim_at_uazu.net>
> To: <buildcheapeeg_at_yahoogroups.com>
> Sent: Sunday, February 17, 2002 12:57 PM
> Subject: [buildcheapeeg] BWView
>
>
> > I'm making some progress with my recorded brain-wave viewing app.
> > Here's a screen-shot:
> >
> > http://uazu.net/temp/20010217.gif
> >
> > This is from "DOWNEY.DAT", with some alpha waves, and delta waves too.
> > There are other sections with much more theta and delta than this.
> >
> > I know Jim wanted something with no artefacts, but almost everything
> > is an artefact with this program! What I mean is that the artefacts
> > are made of the same stuff as the data you want to see. The trick is
> > to learn what different features look like, and so to recognise things
> > for what they are.
> >
> > Some of the artefacts I can recognise the source of but I'm not sure I
> > can do anything about, and others are just the nature of windowing and
> > filtering waves, I think. Most programs don't show you this much
> > detail, so you'd never know. However, I might be able to make some
> > progress with this once I've understood everything that is going on.
> >
> > I definitely don't intend to smooth the output or anything like that.
> > I think it's better to see all the detail and to understand the
> > limitations of the method than to be given a false sense of security.
> >
> > I've still got a few bugs to nail, and I've got loads and loads of
> > ideas of improvements to make. Once I've got this basically usable,
> > though, I'll try and get the thing cross-compiled for Windows.
> >
> > Jim
> >
> > --
> > Jim Peters (_)/=\~/_(_) jim_at_uazu.net
> > (_) /=\ ~/_ (_)
> > Uazú (_) /=\ ~/_ (_) http://
> > B'ham, UK (_) ____ /=\ ____ ~/_ ____ (_) uazu.net
> >
> >
> > To unsubscribe from this group, send an email to:
> > buildcheapeeg-unsubscribe_at_egroups.com
> >
> >
> >
> > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
> >
> >
>
>
>
> To unsubscribe from this group, send an email to:
> buildcheapeeg-unsubscribe_at_egroups.com
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:38 BST
