From: JBilderback (jiva_at_humboldt1.com)
Date: 2001-12-02 18:33:28
>
> Message: 7
> Date: Sat, 1 Dec 2001 13:40:31 -0500
> From: "Jim Meissner" <jpmeissner_at_mindspring.com>
> Subject: Re: Re: I published current design at SourceForge
>
> I got acceptable results using an 8 bit converter. If I had the choice now I would go for 12 or 16 bits. Any kind of overload clipping such as eye blinks create a large number of frequency artifacts, and if the signal is AC coupled there is a significant overload recovery time. The data is bad enough without introducing errors that you can control with a little more effort.
>
> > like 5-10% of the signal is noise.
> I wish that were true. It is more like 95% of the signal is noise.
>
restating the question: if there's say 5uv of high frequency noise
riding on
a 100uv EEG signal then what is gained with 12-16 bit data sampling ??
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