From: Jim Meissner (jpmeissner_at_mindspring.com)
Date: 2002-02-18 16:54:48
Dear Jim Peters:
I want you to remember that I was the one who told you "not" to do the log display and stay with the simple linear FFT. Yes?
Well I am totally blown away with your log voice print display. I love it!I have never seen anything so terrific before! It actually looks a little spooky. The high resolution shows some frequencies that I was told should be there but I didn't have enough resolution to see it before.
I am a solid left brained engineer, but I do ask for help from my psychic friends. If it fits my knowledge base great, if not I explore to see what Ican learn, and sometimes the information goes in the trash can.
With that having been said, here is a list of brain state frequencies from another dimension.
Alpha 9.5 to 11 Hz,
Theta 5 to 6 Hz,
Delta 1 to 2 Hz,
Gee .5 Hz.
Prior to this reading, I thought that Delta was the lowest frequency. Theycame through with the 1 per 2 second cycle and I asked what that band was called, and my friend said they are saying "gee, call it what you want".
Your plot shows a Delta band of 1.5 Hz and Gee band of .46 Hz. A first, never to be seen before!
As soon as you can, please send me some "preliminary" code that I can run on DOS or WIN98. I want to play with some of my recorded files! What programs do I need to run this? I have downloaded the SDL files. Will my old Borland C work or do I need a newer C compiler like MSVC6.0 or the mingw32?
GOOD WORK!
Juergen P. (Jim) Meissner
Check out my Website at www.MeissnerResearch.com
Read about the benefits of the Brain State Synchronizer sounds for improving your life and health.
----- Original Message -----
From: Jim Peters
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
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This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:38 BST
