A collection of guitar effect LV2 plugins with MOD Devices user interfaces.
To build the plugins you will require a working Faust installation. The LV2 shared libraries can then be built by running:
make allThis will result in the lv2/*.lv2 directories being ready to be copied to the desired LV2 plugin directory.
An LV2 plugin which is a combination of vibrato and tremolo. The depth of each can be controlled and the phase offset of the vibrato can be set relative to the tremolo. The tremolo waveform can be a blend of sine, sawtooth, triangle and square waves. The output is stereo with the tremolo allocating between the left and right channels. The right channel can be ignored for a mono tremolo effect.
The Tremolo Shape (T SHAPE) control sets the following tremolo waveform for each value:
- 0 -> 1: random -> sine wave
- 1 -> 2: sine wave -> square wave
- 2 -> 3: square wave with changing on/off ratio
- 3 -> 4: saw (ascending) -> triangle -> saw (descending)
- 4 -> 5: manual static value from 1 -> 0
An LV2 plugin which sends a controllable proportion of the input to up to 4 outputs.
The split control determines which output the input signal is sent to. This value is smoothed so that it can be modulated with minimal audible artifacts.
The spread control determines how much of the input signal is sent to other outputs: * 1: This behaves like a crossfade in reverse. The split value will send the input to 2 adjacent outputs in proportion to the split fraction * 0: This behaves like a switch between adjacent outputs * 1 -> 3: For higher spread values, the input signal is spread to 3 or more outputs
An LV2 plugin which crossfades up to 4 inputs to one output.
The fade control determines the mix of which inputs are sent to the output. This value is smoothed so that it can be modulated with minimal audible artifacts.
The spread control determines how much of the other input signals is sent to output: * 1: This behaves like a crossfade. The fade value will mix 2 adjacent inputs in proportion to the fade fraction * 0: This behaves like a switch between adjacent inputs * 1 -> 3: For higher spread values, the mix includes 3 or more inputs
Tone shaping with a low shelf, a high shelf and a parametric EQ, all on the same frequency.
This is an attempt at replacing the classic amp tone stack using digital filter modules. The bass and treble controls are shelf filters which can raise or lower by 20dB. The midrange is a parametric EQ which includes its own Q value. The frequency for all three filters is determined by a single frequency value. The result is a pedal flexible enough to do subtle tone shaping, wah effects, strong midrange scoops, or midrange boosts.
Midrange parametic EQ with A and B settings which can be swept between with a single control
Parametric EQ values for A and B are set independently, and the AB Sweep control interpolates between them. Instead of having an independent Q value, there is a proportional Q which raises with the absolute gain.
This can be used to create wah-like effects, or other effects sweeping broad/narrow boosts/cuts.
Midrange parametic EQ with high and low values interpolated based on the peak amplitude of the input
Parametric EQ values for A and B are set independently, and the amplitude of the input interpolates between them. Instead of having an independent Q value, there is a proportional Q which raises with the absolute gain.
Attack and Release determine how fast the interpolated index can change.
The 'LO' values are the interpolation point for silent input. The 'HI' values are the interpolation point for the most recent peak amplitude. This peak amplitude decays at a rate 10 times the Release value. This allows full interpolation to be possible for an input which varies in amplitude over time.
CV output value derived from the amplitude of the input, with auto-detection of the peak aplitude
Attack and Release determine how fast the output value changes. The Peak Decay determines how quickly the detected peak value decays back to zero.
A CV output of an LFO with multiple shape modes and shapes
The Shape control determines the LFO shape depending on the Mode:
Random -> Sine: 0, smoothed random values changing at the Rate 0.5, a blend of random and sine wave 1, a sine wave
Sine -> Square 0, a sine wave 0.5, a blend of sine and square 1, a square wave
Impulse -> Square -> Pulse 0, an impulse 0.5, a square wave 1, a pulse (on until the end of the cycle, then off)
Saw (asc) -> Tri -> Saw (desc) 0, an ascending saw wave 0.5, a triangle wave 1, a descending saw wave