From: yaniv vilnai (yaniv_vi_at_yahoo.com)
Date: 2000-10-10 11:22:19
hi rob
i'll try to rush things about the filters .
--- Rob Sacks <editor_at_realization.org> wrote:
> Hi Yaniv,
>
> Ok, I'll read those emails.
>
> I need some kind of digital filters right away
> so we can show the software to some folks who
> know a lot about meditation protocols.
>
> They can be temporary filters but I need something
> this week that can do the following:
>
> 1. the user asks to put a threshhold on any
> frequency
> band, for example, 9.5-14.8 Hz.
>
> 2. program sets up a filter for that exact frequency
> band
> in real time.
>
> 3. the filter calculates the amplitude or magnitude
> and
>
> 4. the filter also calculates the phase.
>
> I've been doing this with FFT so far, but it's too
> slow
> for real use.
>
> Do you know if I can run a stream of real numbers
> through an IIR filter, than calculate the phase of
> the
> result by making an in-phase and quadrature-phase
> transform of it by multiplying by sine and cosine
> values?
>
there's such a techinque - go read a little about it
in the brainmaster filter design doc i've atached it .
> Rob
>
>
> ----- Original Message -----
> From: "yaniv vilnai" <yaniv_vi_at_yahoo.com>
> To: <buildcheapeeg_at_egroups.com>
> Sent: Monday, October 09, 2000 8:42 PM
> Subject: Re: [buildcheapeeg] hi .
>
>
> > hi rob
> > if you want to know more find the person , by
> reading
> > the latest mails i sent to that group .
> >
> > by the way i didn't forgot you're request for help
> on
> > filters , but it may take more time , i'm waiting
> > for software . am i holding you or is it a part
> you
> > can do even later , even after all the design is
> done
> > ?
> >
> > sincerly yaniv.
> > --- Rob Sacks <editor_at_realization.org> wrote:
> > > Hi Yaniv,
> > >
> > > Thanks for telling me about the Brainwaves list.
> > > I just joined it, but my German is pretty rusty,
> so
> > > I didn't understand much.
> > >
> > > > rob will you agree to put your software for
> free ,
> > >
> > > > that he may use with his machine ?
> > >
> > > I think probably, yes, but first I want to know
> more
> > > about their project.
> > >
> > > > doing serious research on the value of eeg to
> > > meditation , writing an
> > > > article on the proven
> > > > qualities of eeg as meditation help aid ,
> > > > and with this knowldge raising the awareness
> of
> > > the meditation
> > > > community .
> > >
> > > I think this is a good idea, and I've begun to
> do
> > > this
> > > on my website. For example, I (re)published
> this
> > > article
> > > at the beginning of the summer:
> > >
> > > http://www.realization.org/page/doc0/doc0073.htm
> > >
> > > Rob
> > >
> > >
> > > ----- Original Message -----
> > > From: <yaniv_vi_at_yahoo.com>
> > > To: <buildcheapeeg_at_egroups.com>
> > > Sent: Monday, October 09, 2000 5:28 PM
> > > Subject: [buildcheapeeg] hi .
> > >
> > >
> > > > hi group .
> > > > 1. eeg hadrware status -
> > > > i found a german guy in the brainwaves
> group at
> > > egroups
> > > > that made a design of low cost eeg 2
> channel
> > > machine .
> > > > he put the design on the site there - for
> > > anybody to use.
> > > > he thinks to sell it at about $177 per
> machine
> > > .
> > > > he's currently in beta testing of the
> device .
> > > > for start i'm trying to communicate with
> him ,
> > > and see if he needs
> > > > help , and if he wants to cooperate with us
> .
> > > > rob will you agree to put your software for
> > > free , that he may use
> > > > with his machine ?
> > > > i don't know what's the guy's hardware
> status .
> > > >
> > > > 2. another subject that could help making a
> low
> > > cost
> > > > eeg is :
> > > > doing serious research on the value of eeg to
> > > meditation , writing an
> > > > article on the proven
> > > > qualities of eeg as meditation help aid ,
> > > > and with this knowldge raising the awareness
> of
> > > the meditation
> > > > community .
> > > >
> > > > would anybody like to do this reasearch / or
> know
> > > somebody who like
> > > > to do it ?
> > > > i don't think it's such a big deal to do the
> > > article because alot of
> > > > the stuff is found in books like "megabrain"
> > > "awakend mind - anna
> > > > wise" and after you got premission you make an
> > > article and start to
> > > > putting it inside popular meditation sites
> .and
> > > maybe other things of
> > > > public relations ?
> > > >
> > > >
> > > >
> > > > sincerly yaniv v.
> > > >
> > > >
> > > >
> > > > To unsubscribe from this group, send an email
> to:
> > > > buildcheapeeg-unsubscribe_at_egroups.com
> > > >
> > > >
> > > >
> > >
> > >
> >
> >
> > __________________________________________________
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> >
> >
> >
>
>
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