Reverb tail effect modification, 2 reverb tail effect modification – Sonnox Oxford Reverb User Manual
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7.2 Reverb Tail
7 DESCRIPTION OF CONTROLS
7.2.2 Reverb Tail Effect Modification
All parameters in the Reverb Tail section are fully compensated, so that they may be
adjusted in isolation without mutual interaction with other control settings. This means
that settings such as REVERB TIME or LF ROLL-OFF will produce constant results even if
other factors such as DISPERSION or OVERALL SIZE are varied.
Reverb Time
This sets the overall reverberation time in seconds as referred to a decay of –60dB
ref. the input stimulus.
Overall Size
This sets the overall size of the delays within the Reverb Tail section, providing the
means to modify the character of the reverb independently of reverb time and
absorption parameters. Larger size settings generally provide the greatest
impression of space but result in slower density build up in the short term. Shorter
size settings produce faster density build up over time, but exhibit greater tonal
artefacts in the longer term.
Dispersion
This controls the rate and character of the build up of dispersion behaviour,
complexity and sonic texture over time. At the control’s mid position (0) no extra
dispersion is added. Positive values cause increasing dispersion and complexity
over time. Negative values also cause increasing dispersion but the effect is
modified to produce greater differential dispersion between left and right signals.
Phase Diff
This operates in conjunction with the DISPERSION setting to control the build up of
phase difference between left and right stereo signals. The greater the setting, the
faster phase differences will build up over time, and cause a widening and
deepening of the stereo sound field.
Positive values will create a build up of left and right difference, which is largely
limited within the same absolute polarity across the soundfield as the original
programme signal. This is most useful for producing natural reverb soundfields that
spread between the confines of the stereo speaker width.
Negative values produce a wider range of phase dispersion that includes
components that have inverse polarity with respect to input programme and left and
right outputs. This is useful for producing soundfields that seem to extend beyond
the stereo speakers, to produce an enhanced sense of immersion within the