I. AMPLITUDE AXIS

(Energy, intensity, envelope, physical force)

A. Static Level Control

• Gain / trim
• Fader level
• Normalization
• Manual attenuation or boost

B. Dynamic Range Control

• Compression
• Limiting
• Expansion
• Gating
• Multiband dynamics
• Upward compression

C. Envelope & Temporal Energy Shaping

• ADSR envelopes
• Transient shaping
• Attack/release manipulation
• Fade-in / fade-out

D. Nonlinear Amplitude Effects