stellarpower
stellarpower
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Comments
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This reminds me of how I implemented things in the conventional EEG spectrum. I use a continual Z-score: we take the band amplitude using some method, then find the mean and standard deviation over the last three minutes (or however long). Therefore…
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@fanfanfdx Just glossing over the arguments, that appear to be a fourth-order Butterworth; this application here I find a little difficult to use if you're not an expert in the art of filter design, but it does show you an awful lot. You can see th…
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@SirLouen I've made a number of commits (actually, many many, but mostly locally because they're so messy) to Neuromore, as well as opened several issues. I agree, it's the best option I can see out there, unless you want to pay. Development doesn't…
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@tuialinhares In case you are interested, what you're describing is exactly what I've been working on the past 6 months. I've been training a neural network to see if it can get us a band amplitude with less group delay than using a conventional fil…
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Thanks @compujohnny, that's really great to know! Do you have a specific source/reference for where you got the details, in particular the filtration methods the Othmers are describing where you watch the frequency go up and down over a longer perio…
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Are you seeing the FreeEEG32 on AliExpress? Or you mean your Cyton? I got mine second-hand on eBay to tide me over myself; the FreeEEG32 through CrowdSupply, although was in direct contact with the project maintainers. Again, as much as I agree it's…
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Sorry, I never got notified about this. I can;t reply properly now, but I could look up the GUI version etc. Maybe you could try just connecting through BrainFlow. If you want a graphical plot, it's easy enough to connect a dummy classifier using…
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I cant get it to talk to the OpenBCI GUI program. Maybe the missing RFduino module is causing a problem? What exactly is it you're seeing? FYI, to connect to the wireless, you need to remove the layer below. Just going from memory, but if…
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Did you have much success with this? I have done some basic work in Neuromore. Am trying to see what needs to be done next to make them more rigourous. Also want to edit the neuromore sources to make it possible to export the JSON they send up to th…
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Thank you, I think that answers it. If it's off by a small fraction at the source I'm not worried, so I'll just ignore the timestamps column. Thanks for your help.
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I've been using Muse monitor, what has now become Mind monitor as the bluetooth intermediary, and this is able to report signal quality. It's a paid-for application in the stores, but, google is your friend.
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Thank you for the link. So, the timestamp is the stamp on the packet when it hits the software side? Should I then assume that, if the sample index increases linearly without interruption, that we can ignore the timestamp, and thus if no packets …
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The period of the noise signals / bursts differs between the two images. Yes. I am talking about two completely different sorts of artefacts. The top image only occurs when there is a difference in software. The bottom image I presume is the…
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If the bias is used as the ground, then could you please explain what the difference is between that and the SRB2? Common-sense would tell me to connect the signal to one pin and the ground to what it's measured against, but given that getting start…
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I'm just now seeing spikes like this, Yes, it was clean before. At least, not with artefacts like this (in the 4.2). I think I have let go of the idea of a perfectly clean signal from one of these devices, but if something is halfway usable …
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I'm just now seeing spikes like this, if this is what you'd expect from the hardware issues: These are a lot more regular than those I first observed. They seem to be happening right now without fail with the same period. And look more like a d…
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I'll try and capture you some screen recordings and grab stdout/err; probably over the weekend as I'm going to need to catch up with my day job for a bit. If you can refine what you need to see, i'll do my best to include it. The product details …
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And (miracles happen), maybe there is nothing wrong with the Shield + Cyton. I think this is what I'm seeing. I presume the manufacturers placed that capacitor over it, or something else to that effect to stabilise the supply during these po…
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I'm using Ubuntu - as mentioned, Jammy on my laptop and Focal on the server. Wayland/X11shouldn't be relevant to the equation, as the server does not have Wayland installed and is only running X11. Also, whilst Wayland is still new, it is significan…
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Thanks for all your help. Using the v4 GUI as of just now I can finally see myself blinking at least. There's some noise, but without those bursts dominating the trace, I am at least able to see the results of what I'm doing and can narrow it down -…
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Thanks - yes, I agree with you on the shield power issues. To clarify, I'm thinking that this and what I'm seeing might be separate issues but with similar symptomology. The previously-identified bug with the head plot (#349) demonstrated that simil…
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So I've downloaded the 4.2 release of the GUI, and the 2.1 release of the hub to go with it. I'm no longer seeing these periodic pulses in the datastream. I am seeing lots of hum-like noise, but this is also what I see when using Neuromore or nme-sc…
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For reference, this is the GUI CPU use on my server, before I have even started streaming: Then when I started streaming, it went up to ~130%. I emptied out some cache memory and restarted, and it dropped to a few percent, before rising b…
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On Graphics, I'm using wayland, so I should be fine there. I will have to have a look some time. I was also running this on a high-power server before - I only moved to the laptop in an attempt to move into another room when I thought it might be po…
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Quoting from #231: Thanks for getting back to me so quickly. I assume you are using the UDPx3 mode, and separate battery power supplies (2 AA packs). This seemed to provide the most stable results. In part because the voltage is hi…
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Afraid I don't have enough experience to advise much on what is good or the minimal setup you need, as I'm finding this out myself. I can only really advise on what I have done at this stage. Same with hardware, as I type I'm trying to get a signal …
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Update2: Looks like the packet loss issue is resolved when connecting to the board as a 16-channel. I thought that as the daisy was an add-on, doing so would simply disable the 8 secondary channels - and believed I'd seen this being done somewhere o…
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Update: playing with a few settings whilst I find my feet. I know there's documentation for all of this, but I think a more in-depth tutorial guide / book from pretty much first principles and basics through to a reasonably thorough level might be n…
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On the software side, I have been using Neuromore Studio. It's not perfect but seemed the best FOSS option out there. Brains@Play is really the only other competitor. This is from the guys behind the FreeEEG32, and is under active development right …