From: Jim Meissner (jpmeissner_at_mindspring.com)
Date: 2002-01-03 01:32:56
Dear Joerg:
That sounds much better! Good job!
This is where the art comes in. The brain does not like to be messed with.You have to sneak up on it slowly and push it ever so gently. If you don't it ignores you!
Those people on this and the Mind-l group who think they can play some frequency and entrain the brain and have it show up on the EEG readout, are in for a very rude awakening.
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: Joerg Hansmann
To: buildcheapeeg_at_yahoogroups.com
Sent: Wednesday, January 02, 2002 7:14 PM
Subject: Re: [buildcheapeeg] Re: Meditation - UP mode
Dear Jim,
----- Original Message -----
From: Jim Meissner <jpmeissner_at_mindspring.com>
To: <buildcheapeeg_at_yahoogroups.com>
Sent: Thursday, January 03, 2002 12:01 AM
Subject: Re: [buildcheapeeg] Re: Meditation - UP mode
...
> I did not look at the sound with the oscilloscope yet, but the phase
> was all over the place. I do not know if you did that on purpose or not.
> I did not like to listen to it....
The (phase) delay was 400us. Also there was an additional
random amplitude modulation. :
void InitUserData(void){
Prog01.PulseLength_sec=0.003;
Prog01.StartFreq=10.0;
Prog01.EndFreq=20.0;
Prog01.SweepDuration_sec=3*60;
Prog01.Delay_sec=400e-6;//400e-6;
Prog01.Volume_dB=0; // not yet implemented
Prog01.Attenuation_dB=-6;//-20;
};
> Could you write a version with no delays and rand() functions to
> see if the pulses were working. Just equal pulses that sound centered.
Ok.
I have set all random parameters and delay to 0:
void InitUserData(void){
Prog01.PulseLength_sec=0.003;
Prog01.StartFreq=10.0;
Prog01.EndFreq=20.0;
Prog01.RandomFreqVariation=0.0;//+- random range added to frequency sweep
Prog01.SweepDuration_sec=3*60;
Prog01.Delay_sec=00e-6;//400e-6;
Prog01.Volume_dB=0; // not yet implemented
Prog01.Attenuation_dB=0;//-6;//-20;
};
The *.exe (zipped, 3.85 KB) is in the attachment.
Just copy/extract it over your previous exe-file.
> I am studying your code. I have never used structures before.
Structures are just a handy way to keep data together by defining
a new datatype (e.g. struct TSoundParameter) and some instances of this
new datatype (e.g. Prog01).
If you have a pointer to the structure, you can access the data with the
"->" operator. If you have an instance (also called variable) of the
structure, you access the data with the "." operator.
...
Regards,
Joerg
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This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:36 BST