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Signal quality

Posted: Fri Jan 22, 2021 1:45 pm
by prasada108
Does this appear to be a good signal? Thank you!!!
IMG_2381.png
IMG_2381.png (242.92 KiB) Viewed 1253 times
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Re: Signal quality

Posted: Fri Jan 22, 2021 1:51 pm
by James
AF7 looks Good. AF8 is very bed. T9 and TP10 are ok, but need improvement.

You want very flat lines, like here: https://mind-monitor.com/img/mm-screen-3.jpg

Re: Signal quality

Posted: Sat Jan 23, 2021 4:40 am
by Sebastiii
@James,
It can depend also on the zoom done in the view, this is the same signal but zoomed with 2 fingers ? :
Image
Image
Image

Re: Signal quality

Posted: Sat Jan 23, 2021 9:33 am
by James
Sebastiii wrote: Sat Jan 23, 2021 4:40 am @James,
It can depend also on the zoom done in the view, this is the same signal but zoomed with 2 fingers ? :
True. Then I reclarify my remark to be at the default zoom level of 400uV ;-)
You can reset this default in "Settings" -> "Vertical Max (Microvolts)".

Re: Signal quality

Posted: Sat Jan 23, 2021 11:20 am
by Sebastiii
Great :) thank you :)

Re: Signal quality

Posted: Sat Jan 23, 2021 11:39 pm
by prasada108
so is this a problem with my MUSE? I have had less than six months. Or is there a way to fix this?

Re: Signal quality

Posted: Sun Jan 24, 2021 10:29 am
by Sebastiii
This is possible or some interference, you should open a ticket on Muse support, they will guide you :)

Re: Signal quality

Posted: Mon Jan 25, 2021 12:12 pm
by Sebastiii
I have been able to test 2 Muse S POD, and I'm getting a different result for the same headband N°1 or N°2, one POD has more amplitude in the EEG signal than the other.
So product can differ already on their own and I know the first Muse S match more Sleep staging along Dreem2 than the other.

So I'm pretty sure that sleep staging algorithm can be wrong because of this and not only because of interference !