[wineeg] Re: Time clock error suspected in WinEEG1.4
- From: "David E. Myer, Sr." <damyer@xxxxxxx>
- To: wineeg@xxxxxxxxxxxxx
- Date: Sat, 15 Mar 2003 07:12:04 -0500
Joe --
In my system, I used the USB port to connect the Mitsar unit, along with a=
=20
USB driver that came with the Mitsar. My main concern at the moment is=20
whether my recorded data are any good. That will depend upon whether the=20
error is confined to labelling epochs in the display, or whether the=20
acquisition software truly does not know the correct elapsed time.
I will try to supply a signal of known frequency and see what WinEEG=20
reports. I will also check to see what our Dell laptop (500MHz on AC/200MHz=
=20
on battery) can tell us.
Dave Myer
At 10:48 AM 3/15/03 +0100, you wrote:
>Using WinEEG 1.4 and Windows 98 SE on a slow Toshiba satellite PC
>(processor speed 2-300 Mhz)
>
>I get the similar results after 500 seconds the EEG shows the no.
>157, and is not changed by changing "paper speed". We have been
>basing freq evaluation in the raw EEG on the number of wave tops seen
>in a "one second epoch"..., which actually is more like a 3 second
>epoch?
>
>--
>Joe
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