Tokøta demonstrates Alchemy's spectral synthesis mode in Logic Pro, showing how a spectrogram maps a sample's frequency content and how to resynthesize it using pitch or noise-based presets.
Pitch-based resynthesis suits melodic, harmonic material, while noise-based resynthesis creates more textural, less musical results, useful for sound effects. Blending the two and shaping the envelope defines the final tone.
Going further, the spectral editor lets you draw frequency content directly onto the spectrogram with lasso, pencil, and eraser tools, building sounds entirely from scratch instead of resynthesizing an existing sample.
Looping a drawn shape forwards and backwards, adjusting resolution, and adding transient dots turns this into a genuine sound design tool for crafting original textures and effects.