Mastering

41
6 LtRt Centered UnWrap
This preset turns an LtRt mix into 5.1 without the steering artefacts normally associated with
LtRt decoding. The preset is suitable for film and music, but preset 8 may be a better choice
for the latter.
Basic description of the UnWrap algorithm at preset 0.
L/R Processing LFE Cut Freq. SL Delay SR Delay Focus Fader
Controls frontal image
width. Turn this
parameter to 0% to
leave L and R
completely unaltered.
Hi cut filter frequency
applied to derive an LFE
signal from the input.
Surround delay. Use
larger delays if the
reproduction room is
expected to be large.
Surround delay. Use
larger delays if the
reproduction room is
expected to be large.
The surround channels
interact with the frontal
image depending on the
Focus parameter.
Output fader for all 5.1
channels.
7 LtRt Spread UnWrap
This preset turns an LtRt mix into 5.1 without the steering artefacts normally associated with
LtRt decoding. The preset is suitable for music and doesn’t collapse to the center which an
LtRt decoding tends to.
Basic description of the UnWrap algorithm at preset 0.
L/R Processing LFE Cut Freq. SL Delay SR Delay Focus Fader
Controls frontal image
width. Turn this
parameter to 0% to
leave L and R
completely unaltered.
Hi cut filter frequency
applied to derive an LFE
signal from the input.
Surround delay. Use
larger delays if the
reproduction room is
expected to be large.
Surround delay. Use
larger delays if the
reproduction room is
expected to be large.
The surround channels
interact with the frontal
image depending on the
Focus parameter.
Output fader for all 5.1
channels.
8 LtRt Hall Repro UnWrap
This preset turns an LtRt mix into 5.1 without the steering artefacts normally associated with
LtRt decoding. The preset has the same profile as no 7, but is aimed at reproduction in a
larger hall or movie theatre.
Basic description of the UnWrap algorithm at preset 0.
L/R Processing LFE Cut Freq. SL Delay SR Delay Focus Fader
Controls frontal image
width. Turn this
parameter to 0% to
leave L and R
completely unaltered.
Hi cut filter frequency
applied to derive an LFE
signal from the input.
Surround delay. Use
larger delays if the
reproduction room is
expected to be large.
Surround delay. Use
larger delays if the
reproduction room is
expected to be large.
The surround channels
interact with the frontal
image depending on the
Focus parameter.
Output fader for all 5.1
channels.