Empress Effects Tremolo2 — MIDI Editor & CC Reference

Control the Empress Effects Tremolo2 from your browser — full MIDI CC reference for 6 parameters, interactive editor, and AI-generated presets. Free, no install.

Nitelite gives the Tremolo2 a full browser-based control surface: turn every knob, flip every switch, describe the tone you want to the AI Tone Terminal, and save the results — all sent to the pedal live over MIDI (default channel 1). Works free in Chrome, Edge, Opera, or Brave — no install required.

Knobs

Control	MIDI CC	Description
DEPTH	CC 20	Amount of tremolo effect applied to the signal. Sending 0 is equivalent to fully counter-clockwise; 127 is fully clockwise
RATE \| RATIO	CC 21	In knob mode, sets the speed of the tremolo pulses. In tap tempo mode, sets the ratio of foot taps to tremolo pulses (e.g. at a 1:2 ratio, the tremolo will do eighth notes when you tap quarter notes)
RHYTHM	CC 22	Selects 1 of 8 rhythms (with "0" being accented): 1) 0000 normal tremolo, 2) 0xx0x, 3) 0xx0xx, 4) 0xxx0xxx, 5) 0xx0xx0x, 6) 0x0x00x0x0 (in 5/4), 7) 0xx0x0x0x0x, 8) 0xx0xxx0x0x0xxx
OUTPUT	CC 23	Sets the overall output level (volume) of the pedal

Switches

Switch	MIDI CC	Positions
MODE	CC 24	Tap Tempo / Knob / Preset
WAVEFORM	CC 25	Triangle / Tube / Square

Footswitches

TAP | PRESET — bypass on CC 35
BYPASS — bypass on CC 36

Special MIDI Functions

MIDI Clock Listener — CC 51. When enabled (default), the Tremolo2 listens for MIDI Clock messages and uses them for its tempo. Disable to ignore MIDI Clock — note: if MIDI Clock messages are discontinued while the pedal is listening, the tremolo volume will freeze until clock resumes or this is disabled
Rhythm Downbeat — CC 26. Determines which beat of the rhythm will fall on the downbeat. A value of 3 will have the 3rd beat of the rhythm on the downbeat
Waveform Phase — CC 27. Phase of the waveform relative to the beat. A value of 64 has the waveform in phase. Higher values move the waveform ahead relative to the beat; smaller values move it behind
Direct Control — CC 40. Overrides all other settings and lets you set the amount of tremolo volume directly with MIDI values. Useful for drawing your own waveforms in a DAW and sending them to the Tremolo2
Exit Direct Control — CC 50. Sending this message with any value will cause the pedal to exit direct control mode

Hardware Presets

The Tremolo2 has 8 hardware preset slots. Nitelite can save your current settings to a slot and recall slots via MIDI program change.