Physical Audio Tetrad (VST3/AU/AAX Synthesizer)

Hi, we’ve just finished work on our fourth instrument. Tetrad is a synthesizer plugin that’s not quite like any synth you’ve used before.

Tetrad is a plugin that causes you to think in fours. Its oscillators are a choice of four-tone waves or four-note chords; it has a Quad AM module and a Quad Granulator for its four voices, and of course, those four physically modelled slashed metal plates as seen on the interface.

It’s available now for $59 (£47 / €47+VAT) in VST3/AU/AAX formats. The price will rise to $99 (£79 / €80+VAT) after July 28th. A free trial is available on the product webpage: https://physicalaudio.co.uk/products/tetrad/.

Features

- 115 Presets

- Generate voices through Basic, Chords and Modal chords, Free and Flex modes

- Plus ADSR envelope, FM Frequency and FM Depth for all oscillator types

- Quad AM module to ‘pseudo-sequence’ or gently modulation voices, with control over phase

- Shape, Depth, Gain and Rate (up to 250Hz), plus Phase Displacement per voice

- Quad Granulator mangles the four voices into new textures individually or all together

- Grain Size, Feedback, Rate (up to 50Hz), or individual Grain Size and Pitch per voice

- Plate Resonators that can be driven and positioned graphically on the virtual sound stage

- Set Decay, Metal Cuts ‘amount’, Preamp Drive globally; or Drive and Decay per plate

- MPE-compatible with a glide range of +/- 48 semitones

- Sidechain input lets you access the ‘Quad’ processor modules with other signals

- Quad Output separates the four buses into DAW outputs

- Comprehensive Modulation Matrix with over ## destinations, eight LFOs and three envelope-following sources, plus MIDI and MPE parameter sources.

- Three filters (LP/BP/HP) to curtail and sculpt effects from audio-rate modulation, distortion and extreme granulation artefacts

- VST3/AU/AAX formats for Mac and PC