[Free] Introducing Onsen Audio's Lo-Fi polysynth OS-251

Digital lo-fi sound

OS-251 is a “JUNO” style digital subtraction synthesizer with a simple and powerful DSP algorithm.Unlike other plug-ins that use analog simulation, OS-251 uses digital algorithms to deliver a warm lo-fi sound.The oscillator design and parameter selection are influenced by the JUNO-106, making it easier to create thicker, more solid sounds.

The oscillator is equipped with alias noise (noise peculiar to digital signal processing), which is famous for classic samplers such as the E-mu SP-12, and adds a sense of lo-fi to the sound. With a DAW, you can enjoy powerful sound even at modern sampling rates.

Easy operation

Tired of synthesizers with hundreds of parameters and presets?Then OS-251 is for you. OS-251 is equipped with only carefully selected parameters, allowing musicians to concentrate on their music production.You can see all the parameters at once, so you can use it without stress.With a limited number of parameters, you can quickly create your own favorite sounds and not spend valuable time choosing presets.

Features

• Polyphony with up to 24 voices
  Oscillators (thin, square, saw), shape parameters
• Square sub-oscillator
• Noise oscillator
• Equipped with biquad low pass filter (LPF), frequency and resonance parameters
• Biquad High Pass Filter (HPF) (Frequency Parameter)
• Envelope generator with controllable LPF and amplitude
• Controllable Low Frequency Oscillator (LFO) (LPF, Amplitude, Shape Parameters)
• LFO synchronization
• chorus
• unison
• Flexible pitch control (pitch bend width, octave, semitone, fine tuning)
• Preset manager
• Clipping indicator

System requirements

• OS: macOS (10.12 or later), Windows (10 or later), Linux
• Software VST3 / AU compatible host application (64-bit version)