Modulation

What sound is, how frequency and amplitude work, and why the harmonic series determines the timbre of every instrument — the physics behind EQ, synthesis, and mixing.

How EQ works: low-pass, high-pass, band-pass, shelf, and parametric filters explained — frequency, gain, Q, resonance, and the subtractive approach to shaping sound.

Where synthesized sound comes from — oscillator types, waveform shapes, and the harmonic recipe behind each one.

VCA, ADSR, how envelopes shape volume over time. Why attack and release define character more than the oscillator does.

ADSR envelopes explained: attack, decay, sustain, release — how filter and amplitude envelopes shape synthesizer sounds from plucks to pads.

LFOs, envelope followers, mod matrix. Vibrato, tremolo, filter sweeps. The principle: one signal controls another.

LFOs, vibrato, tremolo, detuning, unison, and glide — the tools that make static sounds come alive.

How songs are organized into sections — and why recognizing form is what separates seasoned songwriters from rookies.

Subtractive, FM, wavetable, and granular synthesis compared — how to build patches from scratch, and what 'analog warmth' actually means in technical terms.

Carriers, modulators, ratios, algorithms. Why FM synthesis can produce sounds that subtractive cannot touch — metallic bells, glassy keys, evolving textures — all from sine waves.

How synthesizers work — from oscillators to algorithms. Platform-agnostic concepts you can apply to any synth, any DAW, any era of electronic music.

Morphing between snapshots of waveforms. Single-cycle waves, wavetable position, the PPG Wave, and modern wavetable engines like Vital — where the boundary between synthesis and sampling dissolves.

Chorus, phaser, flanger, tremolo, and distortion explained — how each modulation effect works, the difference between saturation and clipping, and when to reach for each one.