Aalto

What Aalto is

Aalto is a semi-modular software synthesizer from Madrona Labs, built around a patchable interface for shaping sounds. Its complex oscillator provides FM, timbre, and waveshape controls, with sound generated dynamically rather than from static wavetables. Each voice has a built-in sequencer whose rate and offset can be patched and controlled independently. The voice modules also include a lowpass gate with vactrol emulation and a patchable waveguide or delay, with a waveshaper and peaking EQ in its feedback loop. A state-variable filter offers simultaneous outputs that can be mixed. Aalto runs on macOS and Windows as a plug-in; VST is available on both, and AU is available on Mac. It has no standalone app. A free trial is available, but demo mode plays a reminder sound about every minute and disables patch saving. Madrona Labs provides a manual of more than 50 pages, including an introduction to patching synthesis, tutorial videos about patching and the modules, and technical support by email. The listed Aalto license costs $99, paid once, while the product page also gives a starting price of $179. A license can be installed on any number of computers, though simultaneous use on multiple computers requires a license for each computer.

Who it suits

Aalto suits musicians looking for a patchable software synthesizer with per-voice sequencing and modular sound-shaping components. It is for users working in a VST or AU host on macOS or Windows rather than in a standalone synthesizer app.

Limits

The free demo plays a reminder sound about every minute and does not allow patch saving. One license permits installation on any number of computers, but simultaneous use on multiple computers requires a license for each.

Getting started

1. Visit https://madronalabs.com/products/aalto.
2. Choose the Mac VST/AU installer or the Windows VST installer.
3. Install Aalto in a compatible 64-bit VST or AU host on macOS 10.9 or higher, or on Windows 7, 8, or 10.
4. Try the demo, keeping in mind that patch saving is disabled and a reminder sound plays about every minute.
5. Purchase an Aalto license for $99, paid once; simultaneous use on multiple computers requires a license for each.

Verdict

Choose Aalto if you want a semi-modular plug-in with patchable voice modules and per-voice sequencing. Look elsewhere if you need a standalone app or simultaneous use on several computers under one license.