Frequency Shifter

A frequency shifter shifts each frequency of the input signal by a fixed amount.

Unlike pitch shifters, where the frequencies are shifted by a factor, and where the harmonic relations are kept, a frequency shifter alters the harmonic relations. Therefore, a larger frequency shift usually results in a disharmonic sound.

Furthermore, a frequency shifter alters the frequencies by adding an offset, while a pitch shifter multiplies the frequencies by a factor. The frequency shifter alters lower frequencies more than higher frequencies.

For example, if the input signal has the frequencies 100 Hz, 1000 Hz, and 10000 Hz, and you shift the frequency by +100 Hz, the resulting frequencies are 200 Hz, 1100 Hz, and 10100 Hz.

Freq Coarse

Here you set the amount of frequency shift.

Freq Fine

Here you can fine adjust the amount of frequency shift.

L/R Offset Coarse

Sets an offset for the left and right channels. Positive values shift the right channel upwards and the left channel downwards, and vice versa.

L/R Offset Fine

Allows for fine-adjustments of the offset between the left and right channels. Positive values shift the right channel upwards and the left channel downwards, and vice versa.

Mod Coarse

Sets the maximum amount of frequency shift via modulation from LFO and Envelope Follower.

Mod Fine

Allows for fine-adjustments to the amount of frequency shift via modulation from LFO and Envelope Follower.

Feedback

Sets the amount of feedback, that is, the amount of signal that is sent from the output of the effect back to its input. The sound is similar to that of a phaser. You can control the direction and speed of this effect with the Frequency Fine parameter.

Notches

Here you set the number of notches the phaser effect produces when you use larger amounts of Feedback.

LFO Section

LFO Waveform and Shape

Waveform selects the basic type of waveform. Shape changes the characteristic of the waveform.

  • Sine produces smooth modulation. Shape adds additional harmonics to the waveform.

  • Triangle is similar in character to Sine. The waveform periodically ramps up and down. Shape continuously changes the triangle waveform to a trapezoid.

  • Saw produces a ramp cycle. Shape continuously changes the waveform from ramp down to triangle to ramp up.

  • Pulse produces stepped modulation, where the modulation switches abruptly between two values. Shape continuously changes the ratio between the high and low state of the waveform. At 50 %, it produces a square wave.

  • Ramp is similar to the Saw waveform. Shape increasingly puts silence before the sawtooth ramps up.

  • Log is a logarithmic curvature. Shape continuously changes the curvature from negative to positive.

  • S & H 1 produces random stepped modulation, where each step is different. Shape puts ramps between the steps and produces a smooth random signal when fully turned right.

  • S & H 2 is similar to S & H 1. The steps alternate between random high and low values. Shape puts ramps between the steps and produces a smooth random signal when fully turned right.

Freq

Specifies the frequency of the LFO in Hertz.

Sync

Activate this to set the Freq parameter in fractions of beats.

Depth

Determines the direction and amount of frequency shift from the LFO modulation signal.

Envelope Follower

The Envelope Follower traces the input signal with an adjustable attack and release time and delivers a modulation signal representing the level envelope of the signal.

Sensitivity

All input signals are mixed down to mono before they are sent to the Envelope Follower. This parameter sets the optimum input level for the Envelope Follower.

Attack

Adjusts the attack time, that is, the time the Envelope Follower needs to approach increasing input levels.

Release

Adjusts the release time, that is, the time the Envelope Follower needs to approach decreasing input levels.

Depth

Determines the direction and amount of frequency shift from the envelope follower modulation signal.

Note

The maximum frequency shift via modulation from LFO or the Envelope Follower is determined by the parameters Modulation Range Coarse and Modulation Range Fine.

Mix

Sets the ratio between the dry and the wet signal.