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Alphatron Oscillion is a polyphonic subtractive synthesizer to produce a vast array of sounds, utilizing three main signal modules: frequency (voltage-controlled oscillator VCO), timbre (voltage-controlled filter VCF) and amplitude (voltage-controlled amplifier VCA). Four VCOs initiate the sound waveform and control its frequency. It also determines the initial timbre by the waveform option selected (sawtooth or square). The VCF module shapes the timbre via a low-pass filter with cutoff and resonance parameters controlled by an envelope generator. The amplitude of the sound is shaped by the VCA envelope. It generates iconic vintage synthesizer sounds with distinctive pads, peculiar keys, punchy basses, sparkle leads, creepy effects, charming ambient soundscapes or unearthly and otherworldly atmospheres. Suitable for many genres and styles of music and pliability to custom design over a diverse sonic palette. Available as a plugin in VST and VST3 64 bit versions for Windows, as well as in Audio Unit for macOS. Key Features: • Four Voltage Controlled Oscillators (VCOs). They will generate the initial sound signal with four voltage controlled oscillators (VCO1, VCO2, VCO3, VCO4). • Voltage Controlled Oscillator (VCO) Envelope. Changes the produced frequency. It can be used to modify the attack phase or to create special effect sounds. • Voltage Controlled Amplifier (VCA) Envelope. Controls the volume or amplitude of the sound with independent control over each ADSR stage. • Voltage Controlled Filter (VCF). A low-pass filter that lets the lower frequencies or harmonics pass unchanged, while it attenuates or reduces the strength of the higher frequencies, offering a simple and effective tone control to shape and color the sound source. • Voltage Controlled Filter (VCF) Envelope. • Chorus effect • Delay effect • Reverb effect • 50 presets • Pitch bend. • Virtual keyboard. • Preset Manager. • MIDI automation.