Syntonie - Ondes

Syntonie’s Ondes is a dual video-rate oscillator for analogue video synthesis. It has two independent oscillators with square and linear outputs, sync options, frequency modulation, amplitude modulation and a mixed output. Instead of making sound, it makes patterns: vertical bars, horizontal bars, scrolling lines, gradients and simple geometric shapes.

Each oscillator can lock to horizontal sync for vertical bars, vertical sync for horizontal bars, or run freely for moving lines. The linear output can behave like a triangle wave for smooth gradients, or like a sawtooth for sharper ramps. The square output gives hard black-and-white transitions, while the AM input lets you control the brightness and inversion of the linear wave with another video signal.

The MIX output is of course where the two sides meet. If you set one oscillator to horizontal and the other to vertical, Ondes starts drawing 2D forms — diamonds, triangles or diagonal gradients depending on the waveform settings. It's a very useful pattern source for video patches that need structure, movement and clean basic shapes without being very complicated to use.

Features:

• Dual video-rate oscillator for analogue video synthesis
• Based on the LZX Cadet Oscillator design
• Two independent oscillator cores
• Selectable sync per oscillator
• H sync mode for vertical bars: 15 kHz to 1.5 MHz
• V sync mode for horizontal bars: 23.98 Hz to 3.5 kHz
• Free-running mode for scrolling horizontal bars: 10 Hz to 3.5 kHz
• Manual frequency control per oscillator
• Frequency CV input per oscillator with attenuverter
• Amplitude modulation input per oscillator
• AM affects the linear output only
• AM normalisation switch: +1V or SQR
• Triangle-style or sawtooth-style linear output
• Square wave output per oscillator
• MIX output sums both linear oscillator outputs
• Typical MIX shapes: diamonds, triangles and diagonal gradients
• Rear RCA sync inputs
• Can be powered via Eurorack 16-pin connector or 12V DC barrel input
• 0–1V video-level outputs