LabSeven modules is a collection of modules for VCV Rack by Gernot Wurst, labseven.prospectum.com.
See LICENSE.txt for license information.
LabSeven modules are compatible with VCV Rack 1.X releases.
If you like the modules you can support the development by making a donation, it will be appreciated!. Here's the link: DONATE
The first Lab Seven module: An extended version of a classical VCO from a well-known 80s synthesizer. Comes with standard blue and 'classic gray' skins (simply rename svg files to change skins).
User interface features
RANGE
RANGE knob: Selects the pitch of the entire VCO in octave steps
RANGE Input: Extends the range of the knob by +- 3 octaves from 128' to an upper limit of 0.5'.
-3V: -3 octaves
-2V: -2 octaves
-1V: -1 octave
0V: No change
+1V: +1 octave
+2V: +2 octaves
+3V: +3 octaves
Comment: The idea is to equip another module with a (-3, -2, L, M, H, +2, +3) switch or modulate the range input for arpeggiator-like effects.
Comment: Maximum pitch is limited to 45% of the current sample rate (example: 44.1kHz -> 19,8kHz) with a hard threshold of 40kHz.
MOD
MOD fader: Selects the amount of pitch modulation.
MOD Input: +- 5V -> +- 2.25 octaves of pitch modulation (like the original synth)
V/OCT: Determines the pitch of the note to be played.
PWM (pulse width modulation of the square waveform)
PULSE WIDTH fader: Scales the amount of PWM. The effect depends on the selected PWM source.
PULSE WIDTH selection
LFO: Input +- 5V -> 10% to 90% pulse width
MAN: Manually sets pulse width, ranging from 50% to 90%
ENV: Input 0V to +10V -> 50% to 90% pulse width
Source mixer
Waveforms: Square (with PWM), sawtooth, triangle, sub oscillator (3 modes), coloured noise
Individual waveform outputs are unattenuated. Faders only affect the MIX output.
SUB OSC mode selection (SEL) input options
0V: Manual selection
+1V: 1OCT DOWN
+2V: 2OCT DOWN
+3V: 2OCT DOWN with 25% pulse
Algorithmic (internal) features
Internal resolution: 192kHz
VCO algorithm: BLIT (band limited impulse train) + leaky integrator
Impulse: Original 3340 impulse reconstructed by Blackman-Harris kernel + leaky integration
Coloured noise: High quality sample loop @192kHz
Resampling/anti-aliasing: Windowed sinc interpolation
V1 Migration
inital release