Types of Synthesis Explained

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Synthesis types explained for producers usually means one of four techniques. Every sound you hear in a drum and bass, dubstep or neurofunk track starts somewhere - a reese, a growl, a wobble, a pluck - and each one is built using one of those four methods. Which method you choose dictates what is possible to create.

Most producers learn one synth deeply (usually Serum) and stop there. That works for a while, but eventually you hit walls. A sound you can hear in your head won't come together because the synth in front of you uses the wrong technique for that timbre. Understanding the four core synthesis types - and what each one is good at - is how you stop fighting your tools.

This deep dive covers each method in working depth: how it works, the parameters that matter, where it sits in DnB and dubstep production, and the mistakes to avoid.

1. Subtractive Synthesis - The Foundation

Subtractive is the original synthesis technique and still the most widely used. The concept is exactly what the name says: start with a harmonically rich waveform that contains more frequencies than you need, then remove the unwanted ones with a filter. Sculpt by subtraction.

Every analogue synth from the Minimoog to the Roland SH-101 works this way, and every modern soft synth includes a subtractive signal path even when it offers other engines on top. If you understand subtractive, you understand the spine of synthesis.

In DnB, subtractive is the engine behind the classic reese: two or three detuned sawtooth oscillators run through a low-pass filter, with the filter cutoff modulated by envelopes or LFO. It is also how most stab basses, pluck leads, and pad sounds are built. The reason it shows up everywhere is that it is intuitive - every parameter does roughly what your ears expect it to do.

Subtractive is the spine of synthesis - every other engine builds on the muscle memory you develop here.

2. Wavetable Synthesis - The Modern Bass Engine

Wavetable synthesis is what made the modern neuro and dubstep bass sound possible. It first appeared in the 1980s on the PPG Wave, but it became the dominant technique in underground electronic music when Xfer Serum launched in 2014 and put a powerful wavetable engine into the hands of every producer.

The concept: instead of generating a continuous waveform from a mathematical formula like subtractive does, a wavetable is a stored sequence of single-cycle waveforms - short snippets of one cycle each, lined up in order. The synth plays through this sequence, and the position control determines which waveform you hear at any given moment. Move the position over time and the harmonic content of the sound changes - sometimes subtly, sometimes dramatically.

In practice, wavetable synthesis is how almost all current DnB and dubstep bass design is done. The standard workflow is: pick or design a wavetable with the right harmonic territory, set up an LFO or envelope to modulate the position, then run the output through distortion, EQ and resampling to lock in the final sound. Serum and Vital between them probably account for ninety percent of modern bass patches in underground electronic music.

3. FM Synthesis - Metallic, Aggressive, Hard to Tame

FM stands for Frequency Modulation, and it works on a principle most producers find counter-intuitive at first: one oscillator (the modulator) controls the pitch of another oscillator (the carrier) at audio rate. The modulator is moving so fast that you do not hear it as separate pitch movement - instead, you hear a new, complex timbre with harmonic sidebands that would be impossible to produce any other way.

FM was the technology behind the Yamaha DX7 in 1983, which defined the sound of much of 80s pop music. In underground electronic, FM is responsible for the aggressive, metallic, bell-like timbres that show up in technical DnB, industrial dubstep, and a lot of the harsher neurofunk bass design. It is less common than subtractive or wavetable because it has a steeper learning curve - but the sounds it produces cannot easily be made with anything else.

The reason FM matters in underground electronic is that it produces inharmonic harmonics - frequencies that are not whole-number multiples of the fundamental. These sound metallic, glassy, or distorted in a way that subtractive cannot reproduce no matter how much filtering you do. Industrial dubstep snares, technical DnB stabs, and the harder edges of neurofunk bass design all draw on FM for their character.

4. Granular Synthesis - Texture, Atmosphere, the Alien Edges

Granular synthesis takes a completely different approach to the other three. Instead of generating a waveform from oscillators, granular works on existing audio - a sample, a recording, anything. It chops that audio into tiny fragments called grains (typically 1 to 100 milliseconds long) and plays them back, often many at once, with independent control over each grain's pitch, position and timing.

The result is that you can stretch a sample to any length without changing its pitch, change its pitch without changing its length, freeze a single moment of audio into an infinite drone, or create textures that bear no resemblance to the source material. Granular is the engine behind most modern texture, pad, and atmosphere design in underground electronic music.

In neurofunk and modern DnB, granular is increasingly used for pad layers, ambient beds, and the alien texture work that sits underneath the main bass and drums. Granular also shows up in resampling chains - running a synth patch through a granular processor as a creative effect can take an ordinary sound somewhere unexpected. Tools like Output Portal, Native Instruments Granulator, and the granular section of recent versions of Ableton's Sampler have made the technique accessible to producers who never touched it before.

Synthesis Types Explained for Producers - Which to Reach for and When

The four synthesis types overlap in what they can do, but each has sounds it is uniquely suited for. When you know what you want to make, the question becomes which technique gets you there fastest.

Common Synthesis Type Mistakes

Key Takeaways

1. Subtractive is the foundation. Learn it first and learn it well - every other synthesis type assumes you already understand filters, envelopes and oscillator shapes.
2. Wavetable is the engine of modern neuro and dubstep bass. The position parameter is what makes it different from subtractive. If you are not modulating it, you are not using wavetable.
3. FM creates timbres no other technique can produce. Start with integer operator ratios. Non-integer ratios are where the metallic, inharmonic character comes from, but they are harder to control.
4. Granular is for textures, atmospheres and creative resampling. It is not a replacement for oscillator synthesis - it is a different category of tool.
5. Match the synthesis type to the sound you want. A reese bass is a subtractive job. A modern growl is wavetable. A bell stab is FM. A pad bed is granular. Pick the right tool and the work gets easier.
6. Most modern soft synths combine multiple synthesis types. Serum is wavetable with subtractive filtering and an FM mode. Phase Plant stacks all four. The categories are useful for thinking, but most actual production happens at the boundary between them.

If Synthesis Feels Overwhelming, Start with Samples

Sound design is a deep craft and learning it takes years. While you are building those skills, you do not have to start every sound from a blank patch. Working with professionally designed samples - drums, basses, textures, atmospheres - lets you focus on arrangement, mixing and the creative decisions that define a track, while you slowly build up your synthesis chops in the background.

The producers who get the furthest are usually the ones who use both: synthesis when they have a specific sound in mind, samples when they want to move fast and let the source material inspire the direction.

Continue the Sound Design Pillar

Now that you know what each synthesis type does, the next deep dives apply that knowledge to specific sounds - building the patches that define DnB and dubstep production from scratch.