11th February 2013
At first glance, Torsion's sound structure is similar to a traditional subtractive synthesiser – three oscillators going into a low-pass filter and into an amplifier. But Torsion's oscillators produce simple additive waves based on just a few partials, which are then enriched with spectral content using a technique called waveshape modeling. There is also a ring modulator and an audio-range oscillator for filter FM.
Torsion features as many as four separate LFO generators - one for each oscillator and one for the filter and output amplifier. In addition to precise synchronisation, each LFO cycle can be self-randomised, which makes the modulation rhythmical yet non-repetitive. There are also two AHDSR envelope generators, as well as a two-dimensional chaos oscillator.
The interface of Torsion is designed with high-contrast, colour coded elements. It also includes graphic representations for every building block – oscillator waves, LFO phases, envelope shapes and filter spectrum all change as the user modifies them.
- Three oscillators each with four basic additive waveforms and four waveshape models.
- -24 dB/octave resonant low-pass filter.
- -12 dB/octave high-pass filter.
- Ring modulator.
- Modulation oscillator for low-pass filter FM.
- Four tempo-synchronised LFO generators with four waveforms and per-cycle randomisation.
- Two AHDSR envelope generators.
- Two-dimensional chaos modulation generator based on Lorenz attractor.
Price: $49. Detailed information, audio examples, and demo version are available at the Sinevibes website.
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