User guide

Length and Reversal
Once loaded, the IR can be lengthened, shortened and stretched using the length controls. The IR
can be reversed using the arrows icon between the Start and End length controls.
Gain
A replica of the mixer’s gain dials are present on the IR1 and IR2 tabs for convenience during IR
editing and auditioning. Level meters and additional controls for panning and mix modulation are
accessed via the mixer.
Spatial Widening and Mono Collapse
The stereo width of the impulse response can be widened in stereo or collapsed to mono by varying
degrees. The widener is activated by using values greater than 100%; the mono collapse mode is
active between 0%-100% where 0% is fully mono; 100% represents the original signal.
The stereo widener works by inverting the phase of a delayed (7 ms) copy of each channel and
mixing it with the opposing channel. The inversion and opposing channel mix stage creates a
traditional widening effect and the delay reduces the impact of any subsequent mono-mix phases.
Wideners without a delay phase may cause any widened signals to null if passed through a mono
mix stage.
Note that processing works on the IR and not the signal chain, so to arrive at a fully mono output the
mono-to-stereo topology mode would be necessary. This is because processing the same IR in L and
R channels (i.e. a stereo IR collapsed to a mono IR) with parallel stereo mode retains all stereo width
present in the input - processing would sound more like a mono output due to the loss of width in
the IR, but not fully mono due to the retained width in the audio input. Alternatively post-process
mono mode could be set in the mixer view topology by clicking on the double/single circle imagery.