our major problem is we have collected some eeg dataset through OPENBCI device but that dataset is microvolt format we want convert microvolt to frequency can give me solution how to convert microvolt to frequncy please give me solution
FFT is used in DSP (Digital Signal Processing) to convert a time series of samples, into 'bins' of frequency distribution. GUI does this for you:
GUI can also output an array of these bins,
Brainflow also has FFT,
mam raw data is microvolt format but all are writting research paper in frequency only what is relation between microvolt and frequency
http://www.timely-cost.eu/sites/default/files/ppts/2ndTrSc/Niko Busch - Time frequency analysis of EEG data.pdf
Also, here is an old Community post that has information on what FFT is and how it can be used (all code is likely deprecated): https://openbci.com/community/the-ultimate-guide-for-fft-analysis-in-openbci-gui-and-matlab/
sir i am using python we are not using matlab
I am a final year engineering student in the field of information science and engineering. I have taken up a final year project that involves analysing EEG signals. I have used OpenBCI Ultracortex Mark IV with 8 channel cyton board for data collection. After collecting the data I came to know that the data in the txt files is raw and we need to clean it in order to be used for analysis. Thus I designed a python workflow to clean the data and found out that the cleaned values are approximately equal to the corresponding values in the screenshots which were taken at the time of data collection experiment. Now my next task will be to extract frequencies of the signals collected, as most of the EEG research uses EEG frequencies for analysis. My question is : Is there a way that I can use to extract frequencies from the data consisting of microvolt values and timestamps? Any suggestion would be really helpful.
I have conducted experiment on EEG signals using OpenBCI Device. But output of EEG signals are in microvolts, how to convert them into Frequency ?
We have Conduct EEG Experiment Data Analysis We have collected 2 min eeg raw data throgh OPENBCI Device 8 channels the raw data is in Microvolt form but we want classify raw data in frequncy value
how to convert Microvolt to Frequency
Hi Seenu, I merged your new thread into this previous thread, where you asked the same question.
The previous comments give the answer you want.
@Navaneeth, hi. I merged your new thread into this existing on the same question. See the previous comments above.
@MASk, hi. I merged your new thread into this existing on the same question. See the previous comments above.
Thank you @wjcroft for merging this thread. I will definitely go through the discussions thoroughly and reach out to you again if I find anything ambiguous.