Reverb effects

These are modules you can add inside a Grid patch. Open Search modules, enter the browser name shown under a device below, add it, then select it to see its full controls in the inspector. Wire the left and right audio inputs and outputs into your patch. Adding a module alone does not put it into the sound path. A card shows only its first three controls. Widen the window to at least 760 pixels to use the full inspector.

These tables use the Grid inspector’s exact labels, including short labels such as out_db. A switch is a numeric control: 0 is off and 1 is on. Unless a row says otherwise, a range is continuous. Values such as mix use 0–1: 0 is dry, 1 is wet. Width 1 preserves normal stereo; 0 makes the processed part mono.

Room Reverb#

Grid browser: fx-c-room-reverb.

Room Reverb adds early reflections and a decaying space. size changes the space, decay_s sets the decay in seconds and predelay_ms separates the original hit from the reverb. damping removes brightness from the tail. Low and high cuts filter the input to the space. Width adjusts the reverb's stereo spread. For a short drum room, reduce Decay and keep Pre-delay low.

Plate & Hall Reverb#

Grid browser: fx-c-plate-hall-reverb.

Plate & Hall Reverb offers plate, hall and chamber algorithms. Size, Decay and Pre-delay set the space; Density and Diffusion change how packed and smooth the tail sounds. er_amt and er_shape control the early reflections. reflect_db and diffuse_db separately trim the reflections and diffuse tail, with −70 dB silencing either part.

Low and high decay multipliers change tail length below and above the crossover frequencies. Modulation moves the tail; Width spreads it. bass_mono_hz centres its bass from 10 Hz upward, with 0 disabling the feature. duck lowers the reverb under the input. Freeze sustains the existing tail and stops new sound entering it. Changing Algorithm clears the newly selected reverb's existing state.

Convolution Reverb#

Grid browser: fx-c-convolution-reverb.

Convolution Reverb uses eight built-in impulse responses: recorded-space-style shapes that colour the incoming sound. Select a response with ir, then change its attack, decay envelope, size or direction. Size changes its duration and pitch together. predelay_ms separates it from the dry hit. Low/high shelf gains and low/high cuts shape the wet result. Width and Mix finish the balance.

The choices are the built-in bank shown below. This module has no control for importing your own impulse-response file. Changing the response or its envelope rebuilds the response and can briefly dip the wet level during the change.

For the normal track effect cards and chain controls, see Effects. For shared effect channels, see The mixer.