
In Saw/PWM mode, the CtrlA knob will switch between four octaved pulse waveforms and the CtrlB knob behaves in very much the same manner as in the Classic mode, adjusting the waveform’s symmetry/starting point.Įach oscillator has its own unison engine with up to nine voices and a small handful of octaves and basic chord formulas in a drop-down below the Detune knob, which is somewhat self-explanatory, and the Density knob, which has a very special effect on the fine tuning of each unison voice. In AM/Sync mode, the CtrlA knob will crossfade between a saw and a pulse waveform while the CtrlB knob will adjust the frequency of the hard sync. In FM mode, the CtrlA knob will adjust the amount of frequency modulation (which is actually the same brand of phase modulation used in the Yamaha DX7) whereas the CtrlB knob will adjust the frequency of a hidden modulator oscillator also, the “WT Mix” knob will crossfade between the selected waveform and a copy set to the pitch of the modulator oscillator. In Noise mode, the CtrlA knob will either attenuate the low-pass or high-pass filter frequency cutoff, while the CtrlB knob will adjust the filter resonance. In the Classic mode, the CtrlA knob will crossfade between a saw and a pulse waveform, while the CtrlB knob will adjust the pulse width and also the starting point of any one of the 49 waveforms available in the wavetable index.

Each of these five modes interact differently with the “Ctrl A&B” knobs. At the center of each oscillator is a display with a visual representation of the current running waveform, with pitch information directly associated with the “Note”, “Fine” and “Octave” parameters.Īt the very top of each oscillator module is a drop-down menu with five oscillator modes, being Classic, Noise, FM, AM/Sync and Saw/PWM. Each of these identical oscillators is indicated by four navigation tabs and dedicated amplitude knobs labelled “OSC1-4”. Seriously, the bar is set extraordinarily high here. I must take a moment to circle the wagons in regard to Spire’s unparalleled tone, which is a direct result of enormous amounts of research invested in four expertly coded oscillators that just might be the very best (digital oscillators) I’ve laid ears on. I can go right to work and have fun while I’m doing it! I have no trouble keeping track of what I’m doing or what I was doing five minutes ago.

The controls are laid out in a very organized manner.

Not only does Spire offer a wealth of features, but it provides access to those features in a manageable and beautiful interface, somehow keeping hidden pages and tree menu navigation down to a minimum, resulting in a fluid, unencumbered workflow. It’s everything I look for in a synthesizer, regardless of its classification. Mind you, I’ve been tinkering with VST instruments and effects for well over a decade, so trust me when I tell you that I’m not easily impressed, but I’m very impressed by Reveal Sound’s Spire.
#Revealed spire free download software#
Every once in a great while, I sit down with a new software synthesizer (well, new to me that is) and I’m just floored by it in every way, shape and form.
