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Mathematics 13 Online
OpenStudy (anonymous):

help help help mary can not speak somebody help her

OpenStudy (kainui):

Did you try using a fourier transform to try to eliminate the noise? Perhaps she's speaking but you just can't hear it amid the background noise.

OpenStudy (anonymous):

i will give a medal if she talk

OpenStudy (anonymous):

the Fourier transform itself won't get rid of the noise... you need a low-pass filter...

OpenStudy (anonymous):

an ideal boxcar in the frequency domain:|dw:1375589839429:dw|

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