User guide

IR Type: File (Parallel Stereo) – True Stereo Simulation Mode Configuration
In parallel stereo topology mode the option to select a true stereo simulation is provided increasing
the depth of character for standard 2-channel (stereo) impulse responses. Three modes are
available:
• Sim-TS Off: The stereo IR is loaded as provided by the file without additional processing.
Only IRx-A is used for convolution.
• Sim-TS Clear: A delayed copy of the IR is used as described below to create distinct and clear
additional reflections in the IRx-B true stereo convolver.
• Sim-TS Dense: A windowed section of stereo white noise is convolved with the original
stereo IR to create a dense set of additional reflections in the IRx-B true stereo convolver.
‘Sim-TS Clear’ true stereo simulation is achieved by automatically loading a copy of the enveloped
and EQed stereo IR into the IRx-B container as if it were a true stereo IR file pair. The second IR is
then channel inverted and has additional user definable high pass filtering, gain reduction and pre-
delay applied in order to create the typical effect heard in true stereo IR file pairs where signals
bleed into the opposite channel with some delay and filtering.
‘Sim-TS Dense’ true stereo simulation is achieved by convolving a section of stereo white noise with
the original IR. This creates a set of reflections which can be used to thicken and widen the sound of
traditional stereo IRs. In this mode the delay time refers to ¼ predelay followed by ¾ linearly
decaying windowed white noise (e.g. 40 ms delay has a 10 ms predelay and 30 ms decaying noise).