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help need in matlab code.....

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faysal1

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hi, i mdoing project on BRAIN COMPUTER INFACE , and it is n the Initial stage.

i have got a an EEG signal wav file on net (after searching), and working on it.

The signal frequency is 100hz, and i want to bandpass 12 hz to 18 hz.

To achieve this , i find FFT first ,samopling frequency is 200hz. now i want to see my reqired ferquencies in HERTZ.

Q: How to convert /normalize my FFT , to get my reqired signal.

please hlp me, i m in really trouble, help me

best regards
 
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