Vital VST Masterclass, Module 2 - Oscillator Processing




We discussed the basic sound generation principle, wavetable editing, and creation in Vital in the last module.

In this Module, I am gonna talk about various processing units in the Oscillator of Vital.


The Oscillator Pitch Controls


In Vital Oscillator, we have 2 oscillator controls.


  1. In Semitones - The Pitch is set in semitone from -48 to +48. 1 Octave = 12 Semitone

  2. In Cents - The Pitch is set in cents from -100 to +100 ; 1 Semitone = 100 Cents


Transpose Snap


The Transpose snap as the name suggests snaps the keyboard notes to a particular value. All other notes will trigger the frequency of the nearest Selected Transpose note.



Oscillator Level

The oscillator level sets the amplitude of waveforms in the wavetable. This does not set the value in dB, but rather on a scale of 0 to 1. But the effect of the parameter is the same as dB.


Pan

Sets the panning of the oscillator.


Oscillator Routing


This option sends the output of oscillators to various processing units. There are various configurations.


  1. Filter 1 - Sends the Oscillator Output to Filter 1.

  2. Filter 2 - Sends the Oscillator Output to Filter 2.

  3. Filter 1+2 - Sends the Oscillator Output to both filters

  4. Effects - Bypass the filters and sends the oscillator output to Effect Section.

  5. Direct Out - Bypass the filters as well as effects and send the oscillator output to the master.


Unison in Vital vst Plugin


What is Unison in Music?


Unison/Prime creates the copy of the original audio signal coming out of the main oscillator window. You can alter the phase, pitch, stereo width and process the entire signal(original and clones). This processing emulates the positions, pitch, and environment. Think of Unison value 9 as 9 oscillators playing the same note at the same pitch but with different instruments from different locations.


It's like copying your friend's assignments, you copy as it is, then does a little makeover to make it stand out.


Unison gives a great character as well as weight to the sound.


Vital VST Unison


Vital can create up to 16 Unison Voices per octave. The unison has two controls associated with it.


Unison Detune - Unison detune makes the individual unison voices out of tune-up to a small value and changes the position of the voices in the stereo field at the same time. this change creates a continuous interference of phase among unison voices and creates a dynamic phase change. Unison Detune


Unison Detune Power - This option controls the distance among the unison voices.



Phase in Vital Oscillator


There are two-phase options in Vital


  1. Starting Phase


This phase decides the starting position of the waveform, 0 means the waveform will start from the beginning, 180 starts the waveform from the middle, and 360 means the single wave cycle will start from the end.


2. Running Phase Randomization


This option triggers a different phase value every time you play a note. This allows waveforms from different oscillators to interact with each other in different ways and create different outputs.

This function can be very useful in creating a unique character in your sound(For example in pluck).

To experience this change you must have at least 2 waveforms playing(inside or outside the plugin).



Frequency Morphing Modes In Vital



vital VST Synth Plugin Complete tutorial [Synth Plugin tutorial]

1. Vocode


The Vocode Mode

- Bends the Waveform

- Shifts the Harmonics to the right(Formant Shift).

- Remove Top Harmonics at low value.

- Only works when there are more than 2 harmonics.

- Displaces the Harmonics during the change in value.

- This function is especially useful with the text to wavetable in Vital.


2. Formant Scale


The Formant Scale

- Induces Harmonics Based on original Harmonics.

- Shift The harmonics to the right

- Maintains a Tonal Balance between original and induced Harmonics.

- Sometimes at extreme value, Formant Scale removes first Harmonics from 4rd Octave and above.

- This function is especially useful with the text to wavetable in Vital.


3. Harmonic Stretch


- Induces Resonance peaks in the waveform

- Follows Multiplicative Relation, i.e. the shift is faster

- Does not affect the Fundamental; Maintaining the Original pitch of the note.

- Follows the Harmonic Series.

- Applies Sync effect on the waveform.


4. Inharmonic Stretch


- Induces Resonance peaks in the waveform but the s intercity is lower compared to the Harmonic Stretch.

- Maintains the Overall Balance of sound by distributing harmonics across the spectrum.

- Does not affect the fundamental, maintaining the overall original pitch of the note.

- Includes both Harmonic and Inharmonic Frequencies.


5. Smear


A Granulation effect that resamples the waveform.



6. Random Amplitude


Activates Random Harmonics at random amplitude, kind of like a Noise Resonance.


7. Low Pass


Probably my favorite Morph mode of all. I always wanted this option in a wavetable.


This is an FFT filter, the advantage of this filter over a traditional filter is that it does not affect the phase of your sound no matter how extreme the filter setting is. This filter filters by turning the harmonics on and off rather than using a filter circuit.


If you are using Vital to create a Bass, this filter is better than the Filter unit is vital.


Another advantage is that this low pass is applied on the waveform rather than the output. Because of that, the same number of harmonics will be played irrespective of the note.


8. High Pass


Same as above but a High Pass Filter.


9. Phase Disperse


This option changes the phase of individual harmonics except the fundamental(that will create a mixing problem).


Use it while creating sounds with a short attack (Pluck, Bell, Drums, etc) to add amazing characters.


10. Shepard Tone


Creates a constant increment in pitch by shifting the harmonics up or down. New harmonics take the place of shifted ones.


11. Time Skew


Creates a Pseudo Phaser Effect by applying a series of Bandstop filters. The width of the filter decreases with the amount.



Warp Modes in Vital


1. Sync


A self-synchronization of the oscillator, this function increases the play speed when turned to the right, while stretches the waveform around the center point, and changes the waveshape when turned to left.


2. Formant


Same as Sync but with a smooth fade. Works best for Irregular waveforms to avoid discontinuities.


3. Quantize


A Sample and Hold effect that reduces the sample rate of waveform.


Quantize has a great advantage over the S&H effect. Because Quantize works on waveform itself, it follows the notes and pitch. While in the S&H effect the Ringing pitch is always at the same place irrespective of the notes.



4. Bend


Bends the waveform around the center of the waveform. This is a bi-directional function.


5. Squeeze


Bends the waveshape towards or far from the center point, this is a bi-directional function.


6. Pulse


Breaks the waveform from the middle point and shifts the left and right parts away from the center point. A bidirectional PMW effect.



7. FM(Frequency Modulation)


Frequency Modulation using other oscillators and sampler.



8. RM(Ring Modulation)


Ring modulation using other oscillators and sampler.



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