The LFOs section provides controls to set the parameters and mode of operation of the Heisenberg’s two independent LFOs. The LFOs can modulate the amplitude of each operator and the filter cutoff frequency.

Heisenberg LFOs section
Figure 7.9.4: The Heisenberg's LFOs section.

  1. Phase offset: This slider sets the initial point of the waveform as a percentage of one complete wave cycle.
  2. Waveform: This selector sets the shape of the waveform produced by the LFO. Click it to open a menu of 49 different waveforms including sine, parabola, circle, triangle, sawtooth, square, composite, formant, and other exotic waves. Click on the desired waveform, then click the small close “X” icon on the top right corner to close the menu and return to the main interface.
  3. Rate: This slider sets the frequency of oscillation of the LFO in Hz or fractions of a bar. When the sync switch is on, the frequency ranges from 4 bars per cycle at minimum to 1/256 of a bar (a 256th note) per cycle at maximum. When the sync switch is off, the frequency ranges from 0,01 Hz (a period of 1 minute and 40 seconds) at minimum to 500 Hz (a period of 2 milliseconds) at maximum. Note: At the highest frequencies, the LFO signal might exhibit aliasing.
  4. Blend time:This slider sets the time it takes the LFO to reach full amplitude after the delay time in milliseconds from 1 millisecond at minimum to 5 seconds at maximum.
  5. Delay time: This slider sets the time it takes the LFO to start oscillating after the start of each note in milliseconds from 1 millisecond at minimum to 5 seconds at maximum.
  6. Sync: This switch synchronizes the frequency of oscillation of the LFO to the arrangement’s tempo and lets you change it in discrete fractions of the time signature. When this switch is off, the frequency is set in Hz and you can change it continuously.
  7. Restart: This switch sets the wave of the LFO to start its cycle again at the beginning of each note. When this switch is off, new notes don’t interrupt the wave cycle.

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