Serum Macro Controls – How to Add Movement to Your Presets

What Macro Controls Do in Serum

Macro controls in Serum are assignable knobs that let you control multiple parameters simultaneously with a single movement. Think of them as master controls that map to various settings throughout the synth. Turn one macro knob and you might open a filter, increase distortion, and shift the wavetable position all at the same time.

Macros are what make the difference between a static, one-dimensional preset and a dynamic, playable instrument. They give you real-time control over the most important aspects of a sound without diving into the synth internals. For live performance and studio production alike, well-designed macros are essential.

Setting Up Macro Assignments

Dragging to Assign

Assigning macros in Serum is simple. Click on the macro knob you want to use, then drag it to the parameter you want it to control. A blue arc will appear showing the modulation range. Adjust the arc to set how much the macro affects that parameter. You can drag the same macro to multiple parameters to create complex, multi-parameter controls.

Positive and Negative Ranges

The modulation range can be positive (macro up increases the parameter) or negative (macro up decreases the parameter). To set a negative range, drag the blue arc below the parameter default position. This is incredibly useful for creating controls that do opposite things simultaneously.

For example, map a macro to increase filter cutoff (positive range) while simultaneously decreasing reverb mix (negative range). Now when you turn the macro up, the sound gets brighter and drier at the same time. This kind of inverse relationship is the key to expressive, musically meaningful macro controls.

Essential Macro Assignments for Bass Music

Macro 1 – Tone/Brightness

Map this to filter cutoff with a wide range. This gives you instant control over how bright or dark the bass sounds. Adding a positive mapping to distortion drive on the same macro means brighter settings also get more aggressive. This is the most universally useful macro for bass presets.

Macro 2 – Movement/Rate

Map this to your LFO rate to control wobble speed in real time. For wobble basses, this lets you speed up and slow down the wobble during performance or with automation. Adding a mapping to LFO depth on the same macro means the movement gets more intense as it gets faster.

Macro 3 – Character/Texture

Map this to wavetable position on both oscillators. This gives you a single knob that morphs the entire tonal character of the preset. Add a mapping to unison detune for extra texture at higher settings. The sound evolves from clean and focused to complex and detuned as you turn the macro up.

Macro 4 – Space/Depth

Map this to reverb mix and delay mix to control the spatial characteristics of the sound. At zero the sound is dry and upfront. At maximum it is washed in reverb and delay. This is perfect for automation during breakdowns where you want the bass to get more spacious and ambient.

Advanced Macro Techniques

Macro Curves

Right-click on a macro modulation assignment to adjust the curve. By default, macros have a linear response. You can change this to exponential (slow start, fast end), logarithmic (fast start, slow end), or S-curve (slow at both ends, fast in the middle). Different curves feel different under your fingers and can make macros more musical and responsive.

Multiple Parameters per Macro

The real power of macros comes from controlling many parameters at once. A single macro might affect filter cutoff, distortion drive, wavetable position, unison detune, reverb mix, and LFO depth. Each parameter has its own range and curve, so the overall effect is a complex, evolving transformation that would be impossible to achieve by turning individual knobs.

Naming Your Macros

Double-click on the macro label to rename it. Clear names like “Brightness,” “Wobble Speed,” “Grit,” and “Space” are much more useful than “Macro 1-4” when you come back to a preset weeks later or when other producers use your presets. Good naming is a small detail that makes a big difference in usability.

Using Macros in Your DAW

Macros can be automated in your DAW just like any other parameter. Draw automation curves for macros to create evolving sounds that change throughout your arrangement. Gradually increase the brightness macro during a build-up, sweep the character macro during a breakdown, or modulate the space macro for transitions.

You can also map macros to MIDI controllers (hardware knobs and sliders) for hands-on performance control. This is especially powerful for live sets and jam sessions where you want to manipulate sounds in real time without touching a mouse. Our preset collections include detailed macro assignments on every patch for maximum playability.

Make Your Presets Come Alive

Well-designed macros transform a preset from a static sound into a dynamic instrument. Every preset you create should have at least 4 meaningful macro assignments. Think about what a performer or producer would want to control in real time and map those parameters to macros.

Download our free Serum taster pack and explore the macro assignments on each preset. Twist the knobs, automate them in your DAW, and see how well-designed macros add movement and expression to every sound.