Technical data

25
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
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
Feed Forward
On
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 FastFeed 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
Feed Forward
On
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 LoFi Compression & Extreme Settings
LoFi Compression
Can the alpha compressor also sound really bad? Of course not, but sometimes it just loves being,
well … dierent. In this LoFi Compression scenario, the use of the audio lters is the crucial point.
By reducing the high frequencies from 4 kHz on, everything sounds a little darker, while, at the
same time, the bottom experiences a great degree of additional punch. The chosen time param-
eters result in loud and twangy compression eects. The high ratio settings create a great amount
of compression, so that gain reduction values of 8-12 dB are absolutely normal. In this application
the mix controllers give you the option to blend this extreme sound with the original at will.
Extreme Settings
Even though the main focus of the alpha compressor lies on mastering applications, you can also
use it to nd interesting and sometimes extreme settings for single channels or subgroups. Here is
just one of many examples. It is especially suitable for processing drum tracks eectively: The time
parameters with the additionally activated Auto Fast functions are very fast. The high ratio in feed
forward mode causes an extreme characteristic curve so that loud signals will be reduced signi-
cantly. By doing so, very high gain reduction values of 20 dB and more can occur by all means. The
spatial elements now come into the foreground more articulately it somehow sounds as if the
microphones had been placed a little bit further away during recording.