Algorithm Manual Revision 4

MD 5.1
English Manual – Updated 2018-02-28 99
MD 5.1
MD5.1 algorithm – introduction
MD5.1 is a multi-channel multi-band expander/
compressor algorithm, with limiters and exten-
sive possibilities to assign channels to multiple
Sidechains.
Based on the MD-2 and Finalizer heritage, four-
band dynamics are here available for 5.1 produc-
tions. With the MD5.1 it is possible to integrate
dynamics processing in a 5.1 environment offer-
ing features, which will not be possible if using
multiple stereo dynamic processors.
Together with the EQ-5.1 and Toolbox-5.1 algo-
rithms, MD5.1 is an innovative package of mas-
tering tools for multi-channel productions.
The MD5.1 algorithm contains:
5 channels of three band expansion and com-
pression
Full-range brickwall limiter on all Outputs
1 channel of full range expansion, compres-
sion and limiting for the LFE channel
3 Sidechains for the five main channels, that
can be assigned in a flexible way
1 extra Input channel that can be used for ex-
ternal Side Chain input.
To utilize the algorithm correctly, make sure that
the Inputs and Outputs are connected as fol-
lows:
Engine channel 1: Left Front, LFr
Engine channel 2: Right Front, RFr
Engine channel 3: Center, Cnt
Engine channel 4: Low Freq Effects, LFE
Engine channel 5: Left Surround, LSr
Engine channel 6: Right Surround, RSr
Engine channel 7: External Sidechain input,
Xt1 (no Output available)
In the following the parameters in MD-5.1 will
be explained. For further information regarding
Mastering and multiband dynamics processing,
please see the “In-Depth Information” chapter in
this manual.
The MD – 5.1 algorithm occupies:
@ Normal Sample Rate: 1/4 DSP Resource
@ Double Sample Rate: 2/4 DSP Resource
The inputs and outputs of this algorithm are dis-
tributed as follows:
Input Output
L
E1
E2
E3
E4
L
R R
C C
LFE LFE
SL SL
SR SR
Xt
MD5.1 algorithm – main page
MD5.1 algorithm – main page
At the Main page you have access to the general
set-up parameters for the Expander and Com-
pressor sections.
Meters are shown for all seven Inputs and six
Outputs at the right of the display.
Band Xover Frequencies
Lo Xover
Range: Off to 16 kHz
Sets the Cross-over frequency between the Lo-
and the Mid- Expander and Compressor bands
for the five main channels (LFr, RFr, Cnt, LSr,
RSr).
The two Cross-over points are not allowed to
cross each other. Therefore the parameter range
can be less than 16 kHz if the Hi Xover parameter
is set below 16 kHz.