Sound Design Fundamentals Every Electronic Music Producer Must Know

Sound Design: From Presets to Original Sounds

Every preset you love was built by someone who understood synthesis fundamentals. Learn these principles and you'll never be limited to someone else's sound library again.

The Three Pillars of Synthesis

1. Subtractive Synthesis Start with a harmonically rich waveform (saw, square, pulse) and remove frequencies with filters. This is how analog synthesizers work and remains the foundation of most electronic music sounds.

• Saw wave → Low-pass filter → Classic pad/lead
• Square wave → Band-pass filter → Hollow, woody tones
• Pulse wave → Modulated width → Evolving textures

2. FM Synthesis One oscillator (modulator) controls the frequency of another (carrier). Small modulation amounts add subtle harmonics. Large amounts create metallic, bell-like, or chaotic sounds.

The key to FM synthesis is the ratio between carrier and modulator frequencies: - Whole number ratios (1:1, 2:1, 3:1) = harmonic, musical sounds - Non-integer ratios (1:1.414, 2:3.7) = inharmonic, metallic sounds

3. Wavetable Synthesis Scan through a table of different waveforms over time. This creates evolving timbres impossible with static oscillators. Ableton's Wavetable synth and Serum are prime examples.

The ADSR Envelope: Your Most Powerful Tool

Every synth parameter can be shaped by envelopes:

• Attack: How quickly the sound reaches full level
• Decay: How quickly it drops to the sustain level
• Sustain: The level held while a note is pressed
• Release: How quickly sound fades after note release

Fast attack + no sustain = plucks and percussion Slow attack + long release = pads and atmospheres Medium attack + medium decay = keys and leads

LFOs: Adding Movement

Low Frequency Oscillators modulate parameters over time: - LFO on filter cutoff = wobble bass - LFO on pitch = vibrato - LFO on amplitude = tremolo - LFO on pan = auto-panning

Practical Exercise

Open Ableton's Analog or Drift. Start with a single saw oscillator. Using only the filter, one envelope, and one LFO, try to recreate: 1. A Reese bass 2. A pluck synth 3. A slowly evolving pad

If you can make all three from one oscillator, you understand synthesis fundamentals.