PRESONUS AudioBox Stereo Quick Start Manual page 336

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Beats. Select from 4/1 to 1/64 with triplet and dotted-time variants.
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Depth. Adjusts the wet/dry mix of the Chorus output.
• Feedback. Adjusts the amount of delayed output to be fed back into the input.
Variable from -90% to 90%. Negative value results in inverted feedback.
• Delay. Adjusts the delay time for the copied input signal. Variable from 0.25 ms to 10
ms.
• Depth. Adjusts the mix of the processed flanger output with the original dry input
signal. Variable from 0 to 100%.
13.9.4 Phaser
Phaser applies a variable number of allpass filters in series (one fed into the other), along with
one overall feedback loop, to the input signal. Phaser features an LFO to modulate the center
frequencies for each all-pass filter.
The allpass filters function as frequency-dependent delays, so that when the filtered output is
added to the original input signal, certain frequencies can be attenuated or amplified as the
result of phase shifting. Phasers are commonly used on many types of tracks, including synths,
guitars, and even vocals, to create a distinctive frequency-shifting effect.
The following parameters are available for Phaser:
• LFO. Modulates the center frequency for the allpass filters between the range set by
Range Low and Range High.
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Range Low. Adjusts the lowest center frequency for the allpass filters. Variable
from 10 Hz to either 8 kHz or the Range High value.
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Range High. Adjusts the highest center frequency for the allpass filters. Variable
from either 10 Hz or the Range Low value to 8 kHz.
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Speed/Beats. Adjusts the speed of the LFO.
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Sync. Click to engage LFO tempo sync. Time will be expressed as Beats.
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Speed. Variable from 0.01 Hz to 10 Hz.
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Beats. Select from 4/1 to 1/64, with triplet and dotted-time variants.
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