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MD-4
The MD-4 algorithm occupies:
@ Normal Sample Rate : 1/4 DSP Resource
@ Double Sample Rate : 1/2 DSP Resource
Algorithm Inputs/Outputs are distributed as follows:
I/O 1-2: Stereo or Dual mono processing
I/O 3-4: Thru channels, no delay
Main Page
E1 - E4
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2
3
4
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3
4
INPUT
OUTPUT
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Input
In Gain L - In Gain R
Range: 0dB to Off
Input Gain on Left and Right channels.
Delay
Range: 0 to 2000ms
Delay setting for L and R channels
Delay Unit
Range:Milliseconds(ms),Frames24,Frames25,or
Frames30.
Phase Inv. L - Phase Inv. R
Phase Inverse switch for individual channels.
Filter
Lo Cut
Range: Off to 200Hz
1st order low cut filter mainly for DC removal. If digital
Inputs close to full scale are used, turn off the filter or
adjustdowntheInGaininordertoavoidoverloads.
Normalize
Range: -18 dB to +18 dB
Overall Gain/Drive control. Once the Thresholds of the
MultibandsectionandLimitershavebeenadjusted
relatively to each other, the Trim is a convenient place to
adjustmoreorlessdynamicsprocessingandLoudness.
Trimoffersthesame“Drive”approachtoleveland
ThresholdusedinclassicanalogLimiters.Unlikeanalog
designs,MD4’s48bitinternalresolutionprevents
resolution and signal/noise ratio from being sacrificed,
because the processing dynamic range is larger than even
the highest resolution Input would be.
Setup Page
Introduction
Multiband processor featuring newly developed DXP
processing that lifts up low level detail rather than
squashingthepeaks.DXPprocessingisidealforclassical
music, acoustic music, voice, film to broadcast transfers
– and other situations where low level subtleties tend to
get lost. The algorithm also features normal and parallel
compression, and the basic mode can be combined with
EQ,MSprocessingandupsampled,adaptivelimiting.
The five band structure uses phase linear reconstruction,
and a 48 bit fixed point resolution signalpath.
MD4’shi-ratecalculationsprovidestheextrabenefitoflow
latency dynamics processing with low transient distortion.
Forrealtimesensitiveapplicationsthethroughputdelay
is38samplesat44.1kHz(0.86ms,orequivalentto
asource-to-micdistanceof0.3m=1foot).Seethe
descriptionofLookAheadDelayformoreinformation.