RoboVoco is a vocoder that uses up to five-hundred frequency bands to modulate audio. It takes a stereo audio signal as its input—either the left channel modulates the right or vice versa. This manual will explain all of its controls in detail.

Bands: This determines how many frequency bands will be used for audio modulation, and the range is 1 to 500. As this number increases, so does the complexity of the modulation, at the expense of increased CPU usage.

Q: This sets the Q, or resonance, of the frequency bands. The range of this control is 0% to 100%. As the percentage increases, the character of the modulator is more pronounced in the output audio. WARNING: if this value is set to 100%, the output audio will be extremely loud! RoboVoco does clip any output that goes above the digital limit, but still be careful!

Modulator: This decides which channel of the input audio will act as the modulator, either the left or the right.

Invert: This inverts the frequency bands of the modulator so that its higher bands modulate the lower bands of the opposite channel, and vice versa.

Freeze: This temporarily freezes the spectral envelope of the modulator in its current position. It will remain frozen for as long as the control is held down.

Freq Shift: This linearly shifts the frequency bands up or down, which will cause the pitch of the output audio to either increase or decrease. The range is -100% to 100%—both of the one-hundred percents shift the output audio to the absolute end of the frequency spectrum.

Freq Scale: This shifts the frequency bands up or down, much like the Freq Shift control, but it does not do so linearly. The range of this control is -100% to 100%. If the bands are shifted downward, their frequencies will be closer together. Likewise, the frequencies will be farther apart when shifting upward.

Scale Type: This changes the behavior of the Freq Scale control, and can be set to either "Linear" or "Exponential." When at "Linear," the frequency bands will always be an equal distance apart. At "Exponential," the lower frequencies will be closer together than the higher when shifting downward, and vice versa when shifting upward.

Attack: This controls how quickly the filter envelopes react to volume increases in the modulator. It's measured in milliseconds and ranges from 0 to 1000.

Release: This controls how quickly the filter envelopes react to volume decreases in the modulator. Like the Attack control, it's measured in milliseconds and ranges from 0 to 1000.

Gain: This control raises or lowers the volume of the output audio, and is measured in decibels. The maximum value of the control is a 20 dB boost, and its minimum value is complete silence.