Effects Reference

GranSample ships seven built-in effects. This page documents each one and its parameters. To add, reorder, bypass, or remove effects, see The Effects Chain.

Open any effect from its slot in the chain to reveal a header with an ON/OFF bypass toggle, a preset chip row, and a grid of knobs. EQ and Filter also draw an interactive response curve you can drag directly. Each knob can be assigned to a hardware control via MIDI CC Learn — see MIDI Setup & Control.

Reverb

Adds ambience and space. A single wet/dry control blends the reverberated signal against the source.

Control	What it does	Range / default
Mix	Wet/dry balance	0–100%, default 30%

Delay

A feedback delay line for echoes and slapback.

Control	What it does	Range / default
Time	Delay time between repeats	0–2 s, default 0.30 s
Feedback	How much of the output is fed back in	0–95%, default 50%
Mix	Wet/dry balance	0–100%, default 30%

Distortion

Drives the signal for grit and saturation. Push Pre-Gain up to harden the texture, then blend it back with Mix.

Control	What it does	Range / default
Pre-Gain	Input gain into the distortion stage	-80 to 20 dB, default -6 dB
Mix	Wet/dry balance	0–100%, default 30%

EQ

A single parametric band for boosting or cutting around a center frequency. Drag the curve to set frequency and gain at once; pinch to widen or narrow the band.

Control	What it does	Range / default
Frequency	Center frequency (logarithmic knob)	20 Hz–20 kHz, default 1 kHz
Bandwidth	Width of the band	0.05–5.0, default 1.0
Gain	Boost or cut at the center frequency	-24 to 12 dB, default 0 dB

Compressor

Tames dynamics by attenuating signal above the threshold.

Control	What it does	Range / default
Threshold	Level above which compression applies	-40 to 20 dB, default -20 dB
Attack	How fast it reacts once over threshold	0.001–0.2 s, default 0.001 s
Release	How fast it lets go	0.01–3.0 s, default 0.05 s

Chorus

Thickens a sound with modulated, detuned copies.

Control	What it does	Range / default
Rate	Modulation speed	0.1–10 Hz, default 1.0 Hz
Depth	Modulation intensity	0–1, default 0.5
Mix	Wet/dry balance	0–100%, default 30%

Filter

A resonant filter that sweeps high or low content out of the signal. Switch the response with the segmented Type picker below the curve: LPF (low-pass), HPF (high-pass), or BPF (band-pass).

Control	What it does	Range / default
Frequency	Cutoff frequency (logarithmic knob)	20 Hz–20 kHz, default 1 kHz
Resonance	Emphasis at the cutoff	-20 to 20 dB, default 0 dB
Type	LPF / HPF / BPF	default LPF