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 microTERA by VirSyn is a Virtual Instrument Audio Plugin and a Mobile Audio App. It functions as a VST Plugin and an Audio Units Plugin.
microTERA for iPad microTERA for iPad microTERA for iPad microTERA for iPad
Product microTERA
Developer VirSyn
Price (MSRP)
$9.99 on iOS / Free with magazines
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
- Released
- Released
Downloads Released
Miscellaneous Information
Copy ProtectionNone

microTERA for Windows and Mac OS X is available free exclusively on the CD cover disc of several magazines - German magazine Keys & Music Tech in the UK.

The iPad version is available to purchase in the App Store.

Features (Mac & Win):

  • Additive Waveshaping Synthesizer (Mixture between VirSyn Cube and VirSyn TERA).
  • 3 Oscillators (Sinus, Tune & Fine-Tune, individual Lever-Potis, Pitch and Level can be modulated).
  • 32 Voices per Instance.
  • Portamento.
  • Spread-Mode.
  • 2 LFOs (Rate, Sync to Part & MIDI & Voice & Key, Waveforms: Sine, Triangle, Square, Ramp up, Ramp down, S&H, Random).
  • 2 Multi segment Envelopes, each Envelope can have 64 segments.
  • On-Screen Keyboard with Modulation wheel and Pitch-Bend (Range up to -/+ 36 Octaves).
  • The heart of the microTERA: the Additive Shaper with Spectrum and Noise Parameter.
  • 3 effects: Distortion, Delay, Modulation.
  • Amp Section: Level and Pan can be modulated, LoFi-FX (Bit reducer and Sampling rate Reducer).
  • 128 Presets.
  • The well known Slotmachine: "intelligent" Randomize Function.

Features (iPad):

  • Waveshaping Synthesizer:
    • Wavehaper with user programmable shape.
    • Spectral shape specification.
    • Three sine oscillators.
    • Feedback input for noise components.
    • 4 Low frequency oscillators.
    • 4 Envelopes with tempo sync.
    • 64 time/level segments per envelope.
    • Monophonic or polyphonic with 16 voices.
    • More than 160 factory presets, unlimited user presets can be shared.
  • FX:
    • Chorus with four delay lines.
    • 8 pole Analog Phaser.
    • Distortion effect with Tube/Tape emulation.
    • Stereo Echo/Delay effect.
    • Hi end reverberation unit.
  • Live:
    • Play melodies live with the onscreen keyboard. Drag fingers for slides and vibrato.
    • Optionally use CoreMIDI* compatible hardware keyboard.
    • Dozens of scales selectable.
    • Variable Keyboard layout for scale optimized playing.
    • Full featured programmable Arpeggiator.
    • Uses programmable sequences with up to 32 steps.
    • Can trigger single notes and chords.
    • Unique randomizer generates Arpeggios with 100% usability.
    • 32 Arpeggios included, unlimited user arpeggios possible.
    • For each step you can program tie, accent, transposition and note order.
  • Global:
    • Audiobus compatible (Input slot).
    • Inter App Audio.
    • Audio pasteboard. Copy audio recordings to Clipboard for use with other Apps (e.g. Intua BeatMaker and many others).
    • Exchange user presets with File Sharing in iTunes.
    • Support for virtual MIDI input connections.
    • Publish loops and recordings online with the SoundCloud audio platform.

Price: $9.99 in the App Store.


Latest User Reviews Average user rating of 3.50 from 2 reviews

Reviewed By VicDiesel
December 17, 2003

First of all, for the $10 that the magazine (Keys, or Music Tech) costs it's hard to complain about anything.

This is a limited synth: I believe the developer described it as something like "the left pinkie of Tera". It has only one sound generation mode, which is wave shaping. This makes it a bit of a one trick pony, but it's a cool trick (and it's a cheap trick :-) so that's fine.

The sounds are interesting. I've been able to make some bass sounds that were quite usable.

The problem is that wave shaping is rather un-intuitive. You have 3 sine wave oscillators, and some "spectrum" knobs, and other stuff you don't see on your daily VA. There is no good documentation, so I felt like groping around in the dark: I couldn't give much direction to my experimentation. I have no idea what wave shaping does, and how twisting one know or another will influence the sound. I can make different sounds, but it's hard to realize a sound you're looking for. Everything's more or less an accident.

But hey, you get a rather unique instrument (unless you already own Tera) that makes some cool noises for almost nothing. Who can really complain?Read more

Reviewed By kalkin
December 14, 2003

This is by far the berst "magazineware" to date! Sounds great, unique design, and very affordable ($13.99 here in the US). MTM had a good starters tutorial with the issue too. It's not nearly as extensive as his other instruments (Tera, D'Cota & Cube), but you can't complain at less than 1/16 the price. No reason not to pick up the mag.Read more
Discussion: Active


22 February 2014 at 10:11am

this little gem is brilliant, if you can find a back issue of a magazine it was in, buy it....no matter how much it costs.

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Average user rating of 3.50 from 2 reviews

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