QUESTION 4 (a) The Discrete Fourier Transform (DFT) is of paramount importance in all areas of digital signal processing
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QUESTION 4 (a) The Discrete Fourier Transform (DFT) is of paramount importance in all areas of digital signal processing
QUESTION 4 (a) The Discrete Fourier Transform (DFT) is of paramount importance in all areas of digital signal processing. It is used to derive a frequency-domain (spectral) representation of the signal. Majority of the important features used to analyze audio content are defined in the frequency domain. By applying Fourier cosine transform, produce the corresponding function in frequency domain of the analyzed audio for the function f(t)=- 0<t <a t>a