Technical data

24
18
1,5
3,0
5,0
12
16
20
1,0
2,0
4,0
6,0
8,5
9,5
11
14
7,5
1,0
1,5
2,0
16
18
20
3,0
4,0
5,0
6,0
7,5
8,5
9,5
11
12
14
Soft Clip
Gain Reduction
M/S Mode
Active Channel Link
Mix
Dir
10
%
20
30
60
70
80
90
Com
100
50
Gain
0
0,5
dB
1,5
2,0
4,5
6,0
8,0
10
12
11
3,5
EQ Freq
Hz
20
22
30
40
140 170
500
220
300
2k0
1k0
SC Gain
dB
LP
-12
-5
-2
-1
-0,3 -0,3
-2
-5
-12
HP
SC Freq
Hz
30
40
50
80
280 340
430
2k0
3k3
EQ Gain
Lo
2,7
2,2
1,6
1,0
0,3
1,6
2,2
2,7
Hi
dB
0,3
Auto Fast
Feed Forward
On
Auto Fast
x10
On
Transformer
Direct Compressed
On
Thresh
+20
+18
dB
+15
+11
0
-3
-6
-9
-13
-12
+4
Attack
0,01
2,0
ms
7,0
13
28
50
70
110
150
130
24
Release
60
75
ms
100
150
430
570
800
1k1
1k8
1k5
300
Ratio
1,1
1,2
1:X
1,3
1,4
1,7
1,8
1,9
2,1
2,4
2,2
1,6
Soft Clip
25
24
dB
21
19
14
11
8,0
5,5
3,0
16
4,0
Mix
Dir
10
%
20
30
60
70
80
90
Com
100
50
Gain
0
0,5
dB
1,5
2,0
4,5
6,0
8,0
10
12
11
3,5
EQ Freq
Hz
20
22
30
40
140 170
500
220
300
2k0
1k0
SC Gain
dB
LP
-12
-5
-2
-1
-0,3 -0,3
-2
-5
-12
HP
EQ Gain
Lo
2,7
1,0
0,3
1,6
2,2
2,7
Hi
dB
0,3
Auto Fast
Feed Forward
On
Auto Fast
x10
On
Transformer
Direct Compressed
On
Thresh
+20
+18
dB
+15
+11
0
-3
-6
-9
-13
-12
+4
Attack
0,01
2,0
ms
7,0
13
28
50
70
110
150
130
24
Release
60
75
ms
100
150
430
570
800
1k1
1k8
1k5
300
Ratio
1,1
1,2
1:X
1,3
1,4
1,7
1,8
1,9
2,1
2,4
2,2
1,6
Soft Clip
25
24
dB
21
19
14
11
8,0
5,5
3,0
16
4,0
SC Freq
Hz
30
40
50
80
280 340
430
2k0
3k3
500
800
18
1,5
3,0
5,0
12
16
20
1,0
2,0
4,0
6,0
8,5
9,5
11
14
7,5
1,0
1,5
2,0
16
18
20
3,0
4,0
5,0
6,0
7,5
8,5
9,5
11
12
14
Soft Clip
Gain Reduction
M/S Mode Active
Channel Link
Mix
Dir
10
%
20
30
60
70
80
90
Com
100
50
Gain
0
0,5
dB
1,5
2,0
4,5
6,0
8,0
10
12
11
3,5
EQ Freq
Hz
20
22
30
40
140 170
500
220
300
2k0
1k0
SC Gain
dB
LP
-12
-5
-2
-1
-0,3 -0,3
-2
-5
-12
HP
SC Freq
Hz
30
40
50
80
280 340
430
2k0
3k3
EQ Gain
Lo
2,7
2,2
1,6
1,0
0,3
1,6
2,2
2,7
Hi
dB
0,3
Auto Fast
Feed Forward
On
Auto Fast
x10
On
Transformer
Direct
Compressed
On
Thresh
+20
+18
dB
+15
+11
0
-3
-6
-9
-13
-12
+4
Attack
0,01
2,0
ms
7,0
13
28
50
70
110
150
130
24
Release
60
75
ms
100
150
430
570
800
1k1
1k8
1k5
300
Ratio
1,1
1,2
1:X
1,3
1,4
1,7
1,8
1,9
2,1
2,4
2,2
1,6
Soft Clip
25
24
dB
21
19
14
11
8,0
5,5
3,0
16
4,0
Mix
Dir
10
%
20
30
60
70
80
90
Com
100
50
Gain
0
0,5
dB
1,5
2,0
4,5
6,0
8,0
10
12
11
3,5
EQ Freq
Hz
20
22
30
40
140 170
500
220
300
2k0
1k0
SC Gain
dB
LP
-12
-5
-2
-1
-0,3 -0,3
-2
-5
-12
HP
EQ Gain
Lo
2,7
1,0
0,3
1,6
2,2
2,7
Hi
dB
0,3
Auto Fast
Feed Forward
On
Auto Fast
x10
On
Transformer
Direct
Compressed
On
Thresh
+20
+18
dB
+15
+11
0
-3
-6
-9
-13
-12
+4
Attack
0,01
2,0
ms
7,0
13
28
50
70
110
150
130
24
Release
60
75
ms
100
150
430
570
800
1k1
1k8
1k5
300
Ratio
1,1
1,2
1:X
1,3
1,4
1,7
1,8
1,9
2,1
2,4
2,2
1,6
Soft Clip
25
24
dB
21
19
14
11
8,0
5,5
3,0
16
4,0
SC Freq
Hz
30
40
50
80
280 340
430
2k0
3k3
500
800
SCENARIOS – Parallel Compression & Stereo Enhancer
Parallel Compression
If it should (or must) become really loud, you can also use the alpha compressor to drive a track
against the wall – but without the negative eects this usually entails. For this procedure it is pref-
erable to work in the classic linked stereo mode. The time parameters are set very fast here; espe-
cially the attack time at only 10 ųS. The release parameter is set at 150 ms, while the corresponding
Auto Fast function is also activated and the ratio is at maximum. With these settings everything
will be compressed very intensely – even fast transients and impulses, resulting in an intense limi-
tation of the output peak levels. Now the mix controller comes into play: If the just created ‚at‘
signal is mixed to the original signal in moderate rates, it is possible to achieve an increase in loud-
ness while still saving a great part of the initial dynamics.
Stereo Enhancer
Even when there is nothing to compress from time to time, your productions can still benet from
the alpha compressor, as the combination of the M/S matrix and the audio lters makes a very nice
tool for inuencing the stereo spectrum. For this purpose the compressor is switched into M/S
mode and the audio lter of the side channel adds 1.0-1.5 dB at a center frequency of approx. 1
kHz. The gain controllers of both channels are at 0 dB. These settings cause a boost of all frequen-
cies above 1 kHz in the side channel, which intensies the spatial perception as the room reec-
tions become more distinct. The lower frequencies, however, are not of that great importance for
spatial perception. Of course simply increasing the level in the side channel can be used to achieve
a (broadband) change in the stereo spectrum, too, but this variant oers much more dierentiated
options because it is frequency-dependent.
SCENARIOS