ifft
ifft(
spectrum):object[]
Defined in: packages/pleco-xa/src/scripts/xa-fft.js:172
Inverse Fast Fourier Transform (complex input preserved — no component discarded) ifft(X) = conj(fft(conj(X))) / N
Non-finite policy: a missing bin or a bin with NaN/Infinity components throws with the offending index (the old recursive implementation silently treated missing bins as 0).
Parameters
Section titled “Parameters”spectrum
Section titled “spectrum”object[]
Complex spectrum (power-of-2 length)
Returns
Section titled “Returns”object[]
IFFT result