Is there a way to access the data of the time frequency plot?

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Peter Gamma
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Is there a way to access the data of the time frequency plot?

Post by Peter Gamma »

For a peak detection of the time-frequency plot these data are necessary. Is there a way to access these data?
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James
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Re: Is there a way to access the data of the time frequency plot?

Post by James »

You can calculate this from the RAW EEG data using a FFT.
There are many many different ways to perform a FFT calculation, so this is not included in the CSV data.

For a super basic FFT algorithm, check out this site: https://rosettacode.org/wiki/Fast_Fourier_transform
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Peter Gamma
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Re: Is there a way to access the data of the time frequency plot?

Post by Peter Gamma »

Thank, James, that s what I thought. Only wanted to be sure before I start doing it myself.
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James
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Re: Is there a way to access the data of the time frequency plot?

Post by James »

No problem. FYI, remember to set the data recording rate to constant (220/256Hz) in settings if you're doing your own FFT's.
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Peter Gamma
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Re: Is there a way to access the data of the time frequency plot?

Post by Peter Gamma »

Thanks, James.
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