The IRCAM Verb Room Acoustics and Reverberation Plug-In (Electronic Download) is a reverberation processor and room acoustics modeling algorithm. It utilizes a modular design with a recursive filtering reverb engine and advanced perceptive models to synthetically reproduce the acoustic characteristics of different sound environments.
The software offers eight input and eight output channels so that you can perform reverb processing in multi-channel and surround sound formats. A built-in input/output routing matrix allows you to set up the software channel routing with the physical speakers in your control room for monitoring.
The software has input and output gain controls for adjusting levels before and after the signal processing and VU meters for monitoring. You can use the dry mix control to blend the original signal with the processed signal. To improve workflow, the plug-in features two preset slots, A and B, that can be loaded simultaneously with a set of parameters and morphed between using a slider. The slider can be set to follow automation curves in the host application. A global preset of both slots and the position of the morphing slider can also be saved.
For controls, the software allows you to individually adjust the high, mid, and low frequency decay times for the reverberation tail and the crossover frequencies for each setting. You can select either the standard or the high density reverb engine and control a set of 3-band EQ filters over the early, cluster, and reverb time domain components of the process. The plug-in includes the options of applying infinite reverb, turning on an air absorption filter, changing the modal density or frequency smoothness of the engine, panning the effect in stereo space, changing the width of the stereo space, and directing the diffusion of the reverb within space.
For the early time domain component of the effect, you can adjust the shape of the first reflections, the time it takes for reflections to occur, the time it takes for reflections to cease, and the distribution of the reflections as they are scattered in time. For the cluster time domain component, you can control the time at which clustering begins, the time at which clustering ends, and the distribution of the cluster as it is scattered in time. The complexity of the reverb algorithm and the extensive user control interface allows you to simulate a wide variety of different acoustic spaces.