The FFT editor
The FFT Editor is a sort of EQ on steroids, giving you exquisitely fine control over the harmonic content of the signals output by the Basic and Shape Oscillator types. Essentially, you use it to adjust the levels of both harmonic and inharmonic bands in one of three modes.
Harmonic mode presents all the harmonic and inharmonic bands as a row of vertical sliders – simply drag them up and down to raise and lower their levels. The lightest bands are the octaves above the fundamental – the number below each one tells you which octave it is, with the fundamental being 00. The darker bands – indicated by the 7th markers below – are the quint partials; and the darkest bands are the inharmonic bands of the next harmonic to the right. While Harmonic mode snaps your edits to specific harmonics, quint partials and inharmonics – ie, a selection of musically useful bands – Bin mode gives you access to all 256 harmonics, with the ability to zoom in on the display using the mouse wheel. Next, there’s Free mode, which lets you draw in your own harmonic response curve completely freehand.
The row of knobs at the bottom of the FFT Editor dial in low- and high-pass filtering with variable slope settings, and ‘spectral sweeping’, which means shifting the edited bands and harmonics left and right. The Flip setting, meanwhile, progressively inverts the bands, so that cuts become boosts and vice versa.
Perhaps the most intriguing FFT controls, though, are the VSpeed and VStrength parameters, which dial in the rate and depth of LFO-style up/down modulation for individual bands, letting you create spectacular morphing effects.
The FFT editor is far more than a frequency analyser, letting you scoop and morph the sound in new ways