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This product has been replaced by: Triangle II
 Triangle I by rgc:audio is a Virtual Instrument Audio Plugin. It functions as a VST Plugin.
Triangle I
Product Triangle I
Developer rgc:audio
Price (MSRP) No Longer Available
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
 1.1  - Released
Miscellaneous Information
Copy ProtectionNone


  • 2 Oscillators with multiple waveforms.
  • Pitch, Filter and Amp envelope generators with velocity, scaling and amplitude controls.
  • 3 LFOs.
  • Portamento.
  • Multi-mode filter with resonance.
  • Noise generator.
  • Oscillators, filter and amplifier controllable by Aftertouch, mod wheel and velocity.
  • Stereo spread.
  • Echo.
  • Extensive MIDI implementation: Portamento on/off, time, volume, Aftertouch, sustain switch, modulation, pitchbend, breath, velocity, cutoff, resonance, detune, transpose, osc1wave, osc2wave, delay level and a lot more.
  • Three keying modes: Fingered, High note priority legato, Full legato.
  • Many features can be disabled to save CPU.
  • Outstanding look with wooden surround by Matthys L.C. van Amsterdam (Alterex).
User Rated

Review Triangle I Now!

Discussion: Active


1 October 2013 at 7:35pmBlackWinny

Who said Triangle is no longer available !?!?

Triangle in its second version (Triangle II) is freely downloadable directly on the website of Cakewalk .


15 February 2014 at 8:11pmpopsaka

...but Triangle I is a bit of a different animal... I'm glad I have it and I wish rgc:audio wuz still doin' it to the vsti and mini-host world. Does anyone know if they're developing under a new handle??

15 February 2014 at 10:54pmBlackWinny

No. All this series (Triangle, Square, and even Pentagone) is being totally abandoned for years and years.

Like you I have all the versions of all these wonderful synths, and yes they were a bit different in their results from versions to version... But apart very few exceptions I always use the last version of these old excellent synths created by René G. Ceballos (rgcaudio, rgc was the three initials of his name).

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Triangle I

Average user rating of 9.23 from 13 reviews

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