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TetraOP

Synth Plugin by Tilr
MyKVRFAVORITE6WANT12
TetraOP
TetraOP by Tilr is a Virtual Instrument Audio Plugin for macOS, Windows and Linux. It functions as an Audio Units Plugin, a VST 3 Plugin and a LV2 Plugin.
Product
Version
1.0.0
Product
Version
1.0.0
Product
Version
1.0.0
Instrument
Formats
Open Source
GPL 3

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KVR Rank

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30-Day: 38; 7-Day: 4; Yesterday: 3

TetraOP is a wavetable synth with four oscillators, FM, Unison, ring modulation and more.

Features:

  • Wavetable based synthesis.
  • 4 operators with FM and RM routing.
  • 10 predefined FM layouts.
  • FM and RM routing matrix.
  • 16 Unison voices per operator.
  • 5 Unison modes.
  • 8 Phase distortion modes.
  • 2 Filters with 5 types and 4 modes each.
  • Drag-and-drop modulation system.
  • Envelopes, LFOs, Macros and other modulation sources.

Latest User Reviews

Average user rating of 5.00 from 2 reviews
TetraOP

Reviewed By Warkyuu [all]
July 9th, 2026
Version reviewed: 1.0.0 on Windows

Easily my favorite plugin from DC2026. I knew I would love this one when I saw it, and I was right. It is an incredibly powerful four oscillator wavetable synth, complete with warping options and a easy to use fun UI.

Rated as my #1 plugin for DC2026.

Read Review
TetraOP

Reviewed By NWSM [all]
July 8th, 2026
Version reviewed: 1.0.0 on Linux

Early Stage Optimism to a Wavtable Synth from Top Tier Tilr.

This Synth is built using Gin and Juce.

TetraOP is - as suggested - an Quad Operator Wavetable Synth with all Toys you want to have in a Wavetable Synth. I think we reached a state that we know Tilr is known to build good Plugins.

short: FM/RM OP-Matrix and 10 Algorithms, some FX, 13 Modulation Sources, 4 Wavetable Operator you can expand with your own Tables (keep them small), Wavetable Bend Option like skew, fold, sync, formant, pulse, quantize..., 4 Tabs [SYN] [FX] [MOD] [CFG]. Low CPU, good Performace what i was allowed to experience, 9 Filter Types, 5 Filter Modes, Filter IN Routing, Glide and Glide Time, Mono-Poly-Legato, Drag FX Order, Mod Source with BiPolar Option - Amount - MSEG Mapping, MSEG Mod has GRID and SNAP [shift] also fine Tuning with [shift], [STRG] / [CTRL] for quick Modulation of multiple Destinations,

Filter Section is kinda small maybe Tirl will add a bit more, no Wavetable Editor...but well just add new Wavetables, you dont need an Editor:
- https://www.carvetoy.online/edit?rnd=true
- https://www.taron.de/wavetabling/

Its a FREE one.

Suggestion:

  • Some Freaky Filter Types nobody has seen before.
  • Quick Mod Source Remove (with Button or ENTF/ Delete / Backspace Key Bind).
  • Some more Effecte or expanded existing ones (HAAS, Distotion Types, Reverb Types, Compressor with True Peal Limiter).
  • Random ModulationTypes.
  • Bigger Modulation Knob.Handles (the Grab-Region is just big enough).
  • Step Sequencer in LFO Section or draw steps mode.
  • One Output per Operator for external usage.

Issues on Linux:

  • Master Output Ruler is not working.
  • No Master Output Visuals.
  • Mouse cursor dont stick to the Knobs when Click-Draw at some point the Cursor leaves Knob Region and can go over the Plugin Border.

Thanks Tilr for supporting Linux Plugins.

Read Review

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Comments & Discussion for Tilr TetraOP

Discussion
Discussion: Active
wikter
wikter
7 July 2026 at 10:08pm

Hi, i've found a possible bug, when Velocity is modulating an envelope value (Attack decay, ...) the velocity modifies the values of notes sounding in the background. I expect that velocity modifies ONLY the notes played before note off, leaving background notes untouched.
Other than that, this is a wild feature instrument. It needs a wider set of patches to demonstrate what's capable to users that don't dare digging into it.
Thanks & good luck on this KVR DC.

tilr8
tilr8
8 July 2026 at 11:35am

Thanks and I'll have a look.

BuckSatan
BuckSatan
9 July 2026 at 2:55am

How do you install this? I guess im so used to PKG files that im not sure where to place these files and folders at.

Thanks for any info.

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