Blamsoft VK-1 Viking Manual do Utilizador descarregar pdf (Página 15)

LFO

The LFO is a low frequency oscillator used for modulation. Its output is a triangle wave, a square

wave, and sample and hold.

Notice that the triangle wave is positive and negative while the square wave is only zero or

positive. The Sample and Hold signal is positive and negative. The Sample and Hold signal gets

its name because an input is sampled and then that value is held during one period of the LFO.

Normally, this input is noise, so the held value is random. The Sample and Hold input signal may

optionally come from a CV input.

Rate

The Rate knob controls the rate of the LFO. In free running mode the

frequency ranges from 0.2 Hz to 50 Hz. In synced mode, rhythmic

divisions of the current tempo are available.

LFO Sync

LFO Sync can be used to optionally reset the LFO or lock the LFO to

the song tempo. When Free is selected the LFO is not locked to the

tempo. When Gate is selected, the LFO waveform resets to the

beginning of a period whenever the gate opens. This occurs when a

key is pressed without another one held. When Keyboard is selected,

the LFO waveform resets any time a key is pressed. Sync locks the

LFO to the current tempo and changes the meaning of the Rate knob

to beat divisions.

Triangle

Square

S+H

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Blamsoft VK-1 Viking Manual do Utilizador Página 15