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Mathematics of the DFT
Inverse
DFT
The
inverse
DFT (the IDFT) is given by
The inverse DFT is written using `
' instead of `
' because the result follows from the definition of the DFT, as we will show in Chapter
6
.
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DFT Definition
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Mathematics of the DFT
Detailed derivation of the Discrete Fourier Transform (DFT) and its associated mathematics, including elementary audio signal processing applications and matlab programming examples.
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