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Synth (Modular) Plugin by Zephod
€35 (intro)
[BLOK] by Zephod is a Virtual Instrument Audio Plugin for Windows. It functions as a VST Plugin.
1.0 (SVN 300)
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[BLOK] is an easy to use modular synthesis environment. The available processing blocks are simple and concise and there are no restrictions on how you hook things up. [BLOK] was designed as a platform for teaching audio synthesis to students, so even beginners can get started building their own synthesizers and effects right away.


  • Classic synthesizer modules such as Oscillators, Filters, Envelopes and Effects.
  • Easy to use interface. Blok was originally created as an educational program to teach audio design principles. This means that each module is simple to understand.
  • Connect everything. There are no limits on connecting blocks together - if a block generates a signal, connect it up.
  • Versatile DSP engine. Additive, Subtractive and FM synthesis are all possible. Let Blok be your synthesis swiss army-knife.
  • Full undo/redo. Don't like what you have done? Go back to a time when you did.
  • Low CPU usage. Blok was made to run well even on low-end computers. This will let you make more complicated setups and get more bang for your synthesis buck.

Stand-alone, Buzz plug-in and VST instrument plug-in versions are available.

Latest User Reviews

Average user rating of 4.00 from 1 review

Reviewed By ecton
June 6, 2012

A great little modular synthesizer with a lot of useful features. It allows for all conventional synthesis methods (Subtractive, Additive, FM, AM, Wave Shaping) and specials like Modal and Karplus-Strong Synthesis. Wave-table and Wave-Cycle-Editing is planned, as well as Sampling Synthesis with modulation of playback speed and direction (for scratching, phase distortion and granulation features).

Pros: -extremely easy to use, -great sound

Cons: -too less waveforms included (if you ask me), but with the future sampling feature you should be able to use your own

What I personally would prefer are synthesis methods like:

Pulse Train Synthesis, VOSIM, LPC, Window Function Synthesis, Hard Sync Modulation, Ring Modulation, Bit reduction/Re-sampling/Sample-Hold and Wave Terrain Synthesis (whereas this last feature would be quite hard to implement, I think)

For that price - absolutely convincing synthesizer!

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Comments & Discussion for Zephod [BLOK]

Discussion: Active
14 June 2012 at 12:09pm

Wave-table and Wave-Cycle-Editing is planned, as well as Sampling Synthesis? Surely BLOK was abandoned ages ago - haven't seen any signs of development for a long long time.

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