DEISK-O
Key Features
- Shape a monophonic voice with ramp and pulse oscillator waveforms
- Blend white noise with the oscillator using dedicated mixer levels
- Adjust filter cutoff and resonance with keyboard, envelope and LFO controls
- Animate pulse width manually or with envelope or LFO modulation
- Choose sample-and-hold, triangle or pulse LFO shapes and blend with sine
- Set note dynamics with an ADSR envelope and hold or envelope amplifier mode
- Route an external signal through the instrument using its input level control
Description
DEISK-O is a monophonic virtual analog synthesizer from Samsara Cycle Audio, built around a single oscillator, a filter and hands-on modulation controls. Its straightforward signal path makes it suited to shaping one-note bass parts, leads and sound effects.
The oscillator offers ramp and pulse waveforms, with octave ranges from sub to 4-foot, plus tuning and detune controls. A separate noise level lets you blend white noise into the oscillator signal before shaping the result with the filter.
The filter section provides cutoff, resonance, keyboard enhancement and envelope and LFO modulation controls, while a high-pass filter offers another way to shape the tone. An ADSR envelope and a choice of hold or envelope control for the amplifier let you adjust how each note develops.
For movement, the LFO offers sample-and-hold, triangle and pulse waveforms, with a mix control for blending the selected shape with a sine wave. Pulse width can be controlled manually or modulated by the LFO or envelope, and a modulation delay control adds another performance option.
An external input and level control extend the signal path beyond the internal oscillator. The developer lists the instrument as a free VSTi; the original Plugins4Free listing identifies the legacy release as a 32-bit Windows VST, so check host compatibility before installing.
Frequently Asked Questions
Can DEISK-O play chords?
DEISK-O is monophonic, so it plays one note at a time. It is designed for individual lines such as basses and leads.
How can I add movement to a sound?
Use the LFO to modulate pitch or pulse width, or use the envelope to shape pulse width and filter response. The LFO offers sample-and-hold, triangle and pulse shapes, with a sine mix control.
Can DEISK-O process an external signal?
The developer lists an external signal input and an input level control. Whether that signal can be routed into the instrument depends on the host’s routing capabilities.
