Tokøta from Mastering.com breaks down Alchemy's Advanced view in Logic Pro, showing how the four independent sources give you real sound design control instead of a single fixed oscillator.
Each source can be switched on or off, tuned by octave or semitone, panned left and right, and blended in volume, letting you stack harmonies or layer subtle detune for width.
Switching between virtual analog and additive oscillator modes changes how the waveform itself is generated, opening up different wave tables like saw, square, and Alchemy's own "big and dirty" and "buzz" shapes.
Layering in noise, from brown noise to fire and crinkle, adds grit and texture underneath the oscillator. Low-cut and high-cut filtering on the noise itself shapes exactly which frequencies come through, turning a plain patch into something with real character.