TC Electronic SYSTEM 6000 MKII Algorithm Manual

46
MD-4
Setup
Configuration
Range: Stereo, Dual Mono, Stereo MS, Sum Mono, Left
Mono or Right Mono.
When set to Stereo, the L and R channels use the same
Delay,Trim,EQandMultibandsettings.Additionally,theL
andRsidechainsoftheMultibandsectionarelinked.
When set to Dual Mono, the channels can have different
Delay,Trim,EQ,MultibandandLimitsettings.TheLand
RsidechainsoftheMultibandsectionareunlinked.NoteA
and B labels on meters and channel selectors.
When set to Stereo MS, a stereo input is converted and
processed as M and S. Note M and S labels on meters
andchannelselectors.ThisallowsindividualTrim,EQand
Multiband processing to be applied to M and S elements of
thesignal,beforeit’sconvertedbacktostereoL/Ratthe
output. In this mode the sidechains of the Multiband section
areunlinkedsoMandSelementscanbeprocessed
completely independently.
When set to Sum Mono, a 2 channel or stereo input is
summed with the levels set on the Main page Trims,
at a relative phase of 0 degrees (normal mono) and 48
bit resolution. The summed signal can have different
processingappliedthroughtheuseofEQ,Multiband
processing and Limiting. Note A and B labels on meters
and channel selectors.
L Mono and R Mono provide modes where only one of the
input channels is passed to both outputs. The one signal
can have different processing applied through the use
ofEQ,MultibandprocessingandLimiting.NoteAandB
labels on meters and channel selectors.
The Configuration control affects the routing and
sidechainlinkingofthe5-bandsection.Linkingof
the Limiter is unaffected by the Configuration, but is
independently set on the Limit page.
Reference Level
Range:-24to0dBFS
This control provides an absolute Reference Level for the
Threshold settings in the Multiband section. Therefore, it is
the level at which the Compressor starts operating when
itsthresholdissetto0dB,seeleveldiagram.Whenthe5
Band mode is set to DXP, Reference Level is the level at
which the bands hit unity gain, regardless of their Steer
and Threshold settings. See level diagram.
Foruseinbroadcastandfilmproduction,normalReference
Levelsettingswouldbe-18dBFSinsomecountries,
and-20dBFSinothers.FormasteringtowardsaFull
Scale delivery, a setting between -14 (wide dynamic range
output)and-6dBFS(lowdynamicrange)wouldbe
more typical.
Ifyou’reworkingwithanaloginputsoroutputs,
remember to scale the converters to match the
surroundingequipment.LevelintheEnginesof
System 6000 are always expressed in absolute
digitallevel,dBFS.GototheFrame-I/O-Slotpagesto
checktheanalogsettings.Examples:IfLevelInandLevel
Out are set at 18 dBu, a Reference
Levelat-20dBFSwillbereachedatananaloglevelof-2
dBu. If Level In and Level Out are set at 24 dBu, the same
ReferenceLevelsettingwillbereachedat+4dBu.
When mastering with DXP mode, start with a
ReferenceLevelaround-8dBFS.Thiswillensure
thatloudpartsarenotsubjectedtoexcessivegain
and therefore limiting. When all other parameters
havebeenadjustedtocomplementthematerial,try
altering the Reference Level up and down a couple
ofdBtosettheoptimumaverage/peakratioofthat
particular piece of material.
5 band
Mode
Range: This is a powerful control that changes between
three different ways of using MD4. Please familiarize
yourself with the virtues of each individual mode.
Normal mode
The Normal mode is a standard, five-band, downward
compressor, where material over a certain Threshold will
be more and more affected by the compressor, finally to
be limited when a second threshold is exceeded. Preset
examplescanbefoundinEngineFactoryBank10,decade
4.MD4’s48bitarchitecturecandeliversubtlecompression
individually applied to different frequency bands and/or
different positions of a stereo image.
Usedonsinglesources,NormalModecanbeusedto
punchupakickorasnaredrumbyusingafairlylong
attackandfairlyfastreleasetime.Theattacktimeandthe
amount of compression can have a big effect on how well
thesignalishandledbysmallspeakers(ghettoblasters,
car-fi,bookshelfenclosuresetc).
Normal mode may be used with good results on other pop/
rocksourcesforcompressionandspectralcontrol,for
instance with vocal, sax, guitar, bass etc.
TheThresholdofthe5-banddownwardcompressor
inNormalModeissetonthe5Bandpage,and
relative to Reference Level on the Setup page. If
ReferenceLevelissetat-8.0dBFS,andthe
Threshold of a particular band is set at -6.0 dB, the
absoluteThresholdofthatbandwillbe-14.0dBFS.
Parallel mode
The Parallel Mode is a true, five-band upward compressor,
where material above a certain Threshold is less and less
affected by the Compressor. Preset examples can be found
inEngineFactoryBank10,decade4.
On analog consoles, parallel channels are often employed
to help control low level aspects of, for instance, vocal or
bass. MD-4 allows using the same technique in the digital
domain,wherethe“dry”partofthesignalisalwaysdelay
compensatedwiththesameamountasthelook-ahead

TC Electronic SYSTEM 6000 MKII Specifications

General

Brand	TC Electronic
Model	SYSTEM 6000 MKII
Category	Computer Hardware
Language	English