In some modes there's no interrelation between the Modulator and Carrier (PWM, for example, where the Neo FM knob applies pulse width modulation to the Carrier), while in other cases (Wavetable) the relationship becomes quite complex.ДЇurthermore, the number of output signals also varies from one (Wavetable) to three (RingMod, where the Neo FM knob controls the ring modulation level). For each type, the Neo FM knob takes on a slightly different role - the signal flow block diagram to the right changes to illustrate what's happening.

The others include waveshaping, wavetable, phase distortion, PWM, ring modulation, and resonant and formant synthesis. Seven of these are variations on the NeoFM concept, including wave synced options, a vintage DX7 emulation and two sub-oscillator variants. However, Tone2 have taken these building blocks and built 22 synthesis modes on them by modifying the signal flow and functionality. With the filter at zero, you're always left with a sine wave and nothing more. The filter offers a super-steep 90dB/octave cutoff, and it works directly on the oscillator's harmonics, rather than its audio output, gradually removing the waves' partials as the knob is lowered. NeoFM depth can also be set to follow note pitch with the Keytrack control. The big Neo FM knob usually (see below) controls the amount of modulation brought to bear on the carrier by the modulator, and is hardwired to follow Envelope 1 with its own amount setting.

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