Re: [buildcheapeeg] Question for Jim-P

From: Dave (dfisher_at_pophost.com)
Date: 2002-02-27 18:02:32


On Wed, 27 Feb 2002 10:08:50 +0000, Jim Peters wrote:

>> Very nice work Jim!
>
>Thanks! -- I saw the pictures. OpenEEG is already reaching the places
>no other EEG software has ever reached before!

:) Indeed it is! I was able to run the binary you included in the distribution
just fine, but ran into problems when compiling (although not the same ones as
Doug). Actually, everthing compiled fine, including the use of -lXv, but the
program does not give the same display results as does your included binary of
'bwview'. I will send you some screen shots so you can see what I mean. I'll
also include my compiled version.

I am running Debian (unstable), XFree86 4.1.0-13, GCC 3.0. I'll upgrade any
out-of-date programs tonight to see if that makes it any better... or worse. I
was going to do it now, but apt-get wants to pull 102mb from the Debian server
for the update, so I'll, like, wait. :)

At first, I just installed the Debian packages for SDL and FFTW and compiled
BWView. Same squirrely screen results. Then I went directly to SDL and FFTW's
site, downloaded the sources and compiled, then compiled BWView. Same results.
I disabled the optimizer in 'mk' (-g -O0), compiled. Same results, bigger
binary. However, even with all the symbolic debugging info, I notice that my
compiled binary is still much smaller than yours. Mine is 190k while yours is
470k. Did you statically link with the libraries? I'm not sure if we are
dealing with an SDL problem here, or FFTW, or something flakey with the
configuration of my system.

But this is a great tool, John. I've been playing around with it (your binary)
and it is giving me a better understand of FFT analysis. I appreciate the
explanations you gave in TUTORIAL.TXT. Really great stuff!

Dave.



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