Calculates the inverse real-valued fast Fourier transform of a non-negative frequency spectrum, returning a real-valued signal.
Non-negative frequency spectrum
Optional
Length of the output real signal
const spectrum = Chalkboard.calc.rfft([1, 0, -1, 0]);const signal = Chalkboard.calc.irfft(spectrum, 4); // Reconstructs the real signal Copy
const spectrum = Chalkboard.calc.rfft([1, 0, -1, 0]);const signal = Chalkboard.calc.irfft(spectrum, 4); // Reconstructs the real signal
Calculates the inverse real-valued fast Fourier transform of a non-negative frequency spectrum, returning a real-valued signal.