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Re: [Openeeg-list] Alex: Disorder or IRC server.
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From: Lara G. <the...@ma...> - 2023-08-10 10:32:21
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Fantastic offer Alex, thankyou Lara > On 10 Aug 2023, at 09:58, Graham Smith <ggn...@gm...> wrote: > > > Thanks for the offer, Alex. > > I vote, : "Yes". > > Graham > > >> On Thu, 10 Aug 2023, 2:58 pm , <ope...@li...> wrote: >> Send Openeeg-list mailing list submissions to >> ope...@li... >> >> To subscribe or unsubscribe via the World Wide Web, visit >> https://lists.sourceforge.net/lists/listinfo/openeeg-list >> or, via email, send a message with subject or body 'help' to >> ope...@li... >> >> You can reach the person managing the list at >> ope...@li... >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Openeeg-list digest..." >> >> >> Today's Topics: >> >> 1. Re: Besselworth calculations (Alexander Houston) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Wed, 9 Aug 2023 22:57:53 -0400 >> From: Alexander Houston <aho...@gm...> >> To: "Discussion of EEG hardware, software, training protocols, NFB >> theory - for developers and users." >> <ope...@li...> >> Subject: Re: [Openeeg-list] Besselworth calculations >> Message-ID: >> <CAE...@ma...> >> Content-Type: text/plain; charset="utf-8" >> >> All, >> >> Would anybody be opposed to creating a discord or IRC server for this >> project? The state of things right now is not friendly for newcomers to the >> project, as most everything is scattered around old wikis, codebases, and >> posts on this mailing list. Many links to the original sourceforge projects >> are only accessible via archival sites like Wayback. >> >> As a newcomer myself, I don't feel it's my place to admin over a server >> like this. However, I'm happy to create one if interest is high but >> familiarity with discord is low. >> >> OpenEEG is a banger hobby concept and it deserves to be accessible in a >> post web 1.0 world ? >> >> Steve: sadly I cannot even begin to comprehend your question, sorry! >> >> Best, >> Alex. >> >> On Wed, Aug 9, 2023 at 10:42?PM Stephen McInturff < >> ste...@gm...> wrote: >> >> > Hello, >> > >> > I'm not sure if this project is still ongoing but I'm going to post and >> > wish for the best. >> > >> > I am attempting to build an Auditory Brainstem Response (ABR) amplifier. >> > The circuit is very much the same as the designs for the "modularEEG" >> > except that the filters are different (I want 300-3kHz while the current >> > designs are mostly <100 Hz). This would mainly involve modifying the >> > "besselworth filter", see screenshot below. >> > >> > My question is how was the cutoff frequency of 59Hz calculated? The >> > equations I've found for this are Fc = 1/(2*pi*sqrt(R232*R288*C234*C231)) >> > which equals 152.5 Hz and the gain calculation Gain = (1+R230/R229) = 13.19x >> > >> > Could someone help explain how these numbers were calculated in the >> > schematic? I understand that the 3rd pole of this filter is on the digital >> > board but how would that play into the calculations? >> > >> > Thank you, >> > Steve Mci >> > >> > [image: image.png] >> > _______________________________________________ >> > Openeeg-list mailing list >> > Ope...@li... >> > https://lists.sourceforge.net/lists/listinfo/openeeg-list >> > Go to the above address to change your >> > subscription options, e.g unsubscribe. >> > >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> -------------- next part -------------- >> A non-text attachment was scrubbed... >> Name: image.png >> Type: image/png >> Size: 185278 bytes >> Desc: not available >> >> ------------------------------ >> >> >> >> ------------------------------ >> >> Subject: Digest Footer >> >> _______________________________________________ >> Openeeg-list mailing list >> Ope...@li... >> https://lists.sourceforge.net/lists/listinfo/openeeg-list >> >> >> ------------------------------ >> >> End of Openeeg-list Digest, Vol 152, Issue 3 >> ******************************************** > _______________________________________________ > Openeeg-list mailing list > Ope...@li... > https://lists.sourceforge.net/lists/listinfo/openeeg-list > Go to the above address to change your > subscription options, e.g unsubscribe. |
