An analog polyphonic synth produced by Octave-Plateau in the early 1980s, and based on integrated circuits from SSM. Its packaging was revolutionary at the time, and anticipated the coming of keyboardless synths that would be controlled by external controllers. The Voyetra was a huge step up from Octave's previous products, consisting of the Cat monophonic synth and its variants, and it took several years for Octave to develop a market-ready version. First demonstrated in 1981, it finally reached the market in 1983. It was Octave-Plateau's last hardware synth; after this, the company transformed into being a software house.