Mastering

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1 5.1 to Stereo Toolbox 5.1
This preset transcodes a 5.1 signal to two channel stereo.
The channel downmix coefficients may be easily adjusted using parameters assigned to
faders 2-4. The main issue here is the relative difference between these three parameters.
Default ATSC and EBU downmix coefficients calls for C at -3 dB and SL/SR at -6 dB relative
to L and R. The absolute numbers are a matter of headroom management.
Note: The LFE input signal is discarded with this preset. If you want to pass LFE to the
stereo output, set LFE Mode to Distribute on the Bass page. LFE is added to the 5 Main
channels before they are downmixed, so the 5 LFE to Main Channels parameters will
determine how much LFE ends up at the stereo output.
Tip: To hear how much a particular channel contributes to the stereo output, use the Input
solo keys on the Main page.
Output Format Feed From L/R Feed From C Feed From SL/SR Fader
Selects the downmix
performed to a 5.1 input.
Use the control to
change in realtime
between different
outputs formats.
Sets the mix coefficients
of L and R. Preset at -8
dB to accommodate
loud 5.1 mixes.
Sets the mix coefficients
of L and R. Preset at -11
dB to accommodate
loud 5.1 mixes.
Sets the mix coefficients
of L and R. Preset at -14
dB to accommodate
loud 5.1 mixes.
Output fader for all 5.1
channels.
2 5.1 to Mono Toolbox 5.1
This preset transcodes a 5.1 signal to two channel mono (L and R).
The channel downmix coefficients may be easily adjusted using parameters assigned to
faders 2-4. The main issue here is the relative difference between these three parameters,
and whether or not the 90 degree de-correlation is activated or not. The absolute numbers
are a matter of headroom management.
Note: The LFE input signal is discarded with this preset. If you want to pass LFE to the mono
output, set LFE Mode to Distribute on the Bass page. LFE is added to the 5 Main channels
before they are downmixed, so the 5 LFE to Main Channels parameters will determine how
much LFE ends up at the mono output.
Tip: To hear how much a particular channel contributes to the mono output, use the Input
solo keys on the Main page.
Output Format Feed From L/R Feed From C Feed From SL/SR 90 degree Mono Fader
Selects the downmix
performed to a 5.1 input.
Use the control to
change in realtime
between different output
formats.
Sets the mix coefficients
of L and R. Preset at -12
dB to accommodate
loud 5.1 mixes.
Sets the mix coefficients
of L and R. Preset at -15
dB to accommodate
loud 5.1 mixes.
Sets the mix coefficients
of L and R. Preset at -15
dB to accommodate
loud 5.1 mixes.
Applies 90 degree
summing when
combining L, R, SL and
SR.
Output fader for all 5.1
channels.