The Kyma Language for Sound Design, Version 4.5

FFT
Spectral Analysis FFT Category
The FFT takes an input from the time domain and produces an output signal in the frequency domain or
vice versa. Length is the length of the FFT.
Two independent time domain signals are present: one in the left channel and one in the right.
The frequency domain signal repeats every Length/2 samples, alternating between the spectrum of the
left channel time domain signal and the spectrum of the right channel time domain signal. The frequency
signal is output in frequency order: 0 hz, Fs / Length, 2*Fs / Length, etc. Each frequency domain sample
has the real part in the left channel and the imaginary part in the right channel.
When Inverse is not checked, the Input is a time domain signal and the output is a frequency domain
signal. When Inverse is checked, the Input is a frequency domain signal and the output is a time domain
signal.
Input
This is the signal that will be transformed from the time domain to the frequency domain or vice versa.
Length
This is the window length of the FFT.
Inverse
Click here to perform an inverse FFT (to convert from a spectrum back to a time-domain waveform).
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