The controls in the Input Conditioning menu (1A) work on unprocessed input audio and are meant to address challenges or shortcomings in the source material or studio environment. Controls include:
Noise Reduction Amount (1B) - Sets the maximum amount of downward expansion to help reduce background noise on noisy source material.
Noise Reduction Threshold (1D) - Sets the point at which incoming audio is considered to be noise, thereby triggering the downward expanders.
Phase Scrambler (1C) - Enabling the phase scrambler (as indicated by a yellow button) applies a slight phase offset to audio with high peaks and high harmonic content (such as synthesizers or trumpets) to prevent having to drastically reduce the level in the final limiter or clipper, thereby preserving overall brightness while preventing distortion.
Phase Rotator (1E) - Enabling the phase rotator can help reduce audible distortion on voice programming by making the waveform more symmetrical.
Note: Changing any control from its default value will change the text color from white to yellow (as seen in the Phase Rotation control below), providing a quick visual cue that a change has been made but not yet saved to a new preset.
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Figure 1 - Input conditioning menu