From: Jim Meissner (jpmeissner_at_mindspring.com)
Date: 2001-12-05 16:19:47
Dear Doug:
Just clicked on your reference. Not in the same ball park.
I should also say that I used audio feedback (speakers), that is I am able to listen to the brain think, and that bandwidth is up to 15 KHz. I also did not "hear" any signals above 40 Hz. When you clench your teeth you can hear that and when you move your forehead muscles that is quite loud, but these are quite distinctive EMG signals.
You have your choice. It is quite easy to change. I gave you the source code.
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: Doug Sutherland
To: buildcheapeeg_at_yahoogroups.com
Sent: Tuesday, December 04, 2001 11:44 PM
Subject: Re: [buildcheapeeg] Re: New Info on Various Schematics
Hi Laura & Jim ...
>> Also, Jim's page states that his firmware supports a 0-60 Hz
>> frequency range, while your page states he achieved a band
>> width of 0.1-100 Hz. Can you clarify this for me?
Jim told me in another discussion group that he was getting
0.1-100 Hz. So which is it Jim?
> The 3 byte or 2 channel version (a8.asm) can run much faster.
> I believe I was able to see 0-200 Hz. To my disappointment,
> I saw no data above 50 Hz (with my electrode placement) so I
> reduced the sampling rate and went to 4 channels (a9.asm)
> instead. At that time, working with a 386 computer, time was
> a "real" problem.
Interesting. Check out these 600 Hz oscillations.
http://www.ispub.com/journals/IJN/Vol1N1/sep.html
-- Doug
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This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:32 BST