9

• Pitch Quantize Glide slider: Sets the amount of time the pitch correction takes, allowing
sliding transitions to quantized pitches.
• Root/Scale keyboard and pop-up menu: Define the pitch or pitches that the tracking
oscillator is quantized to.
• Max Track value field: Sets the highest frequency. All frequencies above this threshold
are cut, making pitch detection more robust. If pitch detection produces unstable
results, reduce this parameter to the lowest possible setting that allows all appropriate
input signals to be heard or processed.
Quantizing the Pitch of the Tracking Oscillator
You can use the Root/Scale keyboard and pop-up menu to define the pitch or pitches
that the tracking oscillator is quantized to.
To choose a root or scale
1 Click the green value field below the Root/Scale label to open the pop-up menu.
2 Choose the scale or chord that you want to use as the basis for pitch correction.
Note: You can also set the root key of the respective scale or chord by vertically dragging
the Root value field, or by double-clicking it and entering a root between C and B. The
Root parameter is not available when the Root/Scale value is set to “chromatic” or “user.”
To add notes to, or remove notes from, the chosen scale or chord
µ
Click unused keys on the small keyboard to add them to the scale or chord.
µ
Click selected notes (illuminated) to remove them.
Tip: Your last edit is remembered. If you choose a new scale or chord but do not make
any changes, you can revert to the previously set scale by choosing “user” in the pop-up
menu.
EVOC 20 TrackOscillator Formant Filter Parameters
The EVOC 20 TrackOscillator features two formant filter banks—one for the Analysis In
section and one for the Synthesis In section. In essence, the entire frequency spectrum
of an incoming signal is analyzed (Analysis section), and equally divided into a number
of frequency bands. Each filter bank can control up to 20 of these frequency bands. For
more information, see How Does a Vocoder Work?.
115Chapter 6 Filter Effects