Strymon STARLAB Quick Start Manual Download Page 4

DELAY AND HARMONICS CONTROLS

HARMONICS 

SHIMMER: Adds pitch shifting to the reverberated signal. Effect is off when 

SHIMMER

 knob is fully counterclockwise.

REGEN: Selects regenerative shimmer which applies the pitch shifting 
within the reverb structure (

REGEN

 LED 

GREEN

) or input shimmer which 

applies the pitch shifting at the input before the reverb structure (

REGEN

 

LED off).

SHIMMER INTERVAL: Secondary function on the 

SHIMMER

 knob to select 

the interval of the pitch shifting effect.

To select the SHIMMER INTERVAL:

 Turn the 

SHIMMER

 knob while holding 

down the 

REGEN

 button. 

Provides two octaves of total range from -1 octave at minimum to +1 octave 
at maximum. Two additional interval options (-detune and +detune) are 
available around the 12 o’clock position of the 

SHIMMER

 knob.

GLIMMER: Dynamically enhances aspects of the input signal’s harmonic 
spectrum. Effect is off when 

GLIMMER

 knob is fully counterclockwise. 

HIGH BAND: Selects between the high band (

HIGH BAND

 LED 

GREEN

) or 

low band (

HIGH BAND

 LED off) harmonics to be enhanced by the glimmer 

effect.

DELAY/KARPLUS

FEEDBACK: Applies regeneration to the delay, resulting in more repeats with 
longer delays, or more resonance with shorter delays. When in Karplus-
Strong mode, 

FEEDBACK

 affects string decay and structure resonance.

ECHO ON: Busses the delay output to the 

WET

 output to mix with the reverb 

signal. For a ‘delay only’ experience, set 

DECAY

 to minimum.

DELAY/TUNE: In delay mode, applies pre-delay from 0 to 1.5 seconds max. 
Control is log taper for finer resolution at lower 

DELAY/TUNE

 settings.

When 

TAP/TRIG

 clock CV input is detected, 

DELAY/TUNE

 knob acts as a clock 

mult/div with the following ratios around the knob (min to max):

•  1/4, 1/3, 1/2, 2/3, 3/4, 1/1, 3/2, 5/3, 7/4, 2/1, 5/2
•  Max delay time is 7.5s (3s clock input with 5/2 multiplier)

TAP: Allows the delay time to be set by tapping in a tempo.

See 

KARPLUS-STRONG CONTROLS

 for additional functions of the 

DELAY/

KARPLUS

 section.

NOTE: When the echo is off and the feedback is at minimum, the 

DELAY/TUNE 

knob functions as a traditional pre-delay, adjusting the 

time between the 

DRY

 signal and the onset of the reverb. Turning the 

knob counterclockwise = shorter, clockwise = longer.

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