Klark Teknik square one dynamics - Ratio

Compressor
24 Square ONE Dynamics
Ratio
Ratio is the strength of compression above the threshold level and controls the amount of compression
applied to signals that are over threshold. Ratio is expressed as a ratio of signal level changes from input to
output, for example, when the compressor is set to 2:1, every 2dB input level change will only generate a
1dB output level change, assuming the signal levels are over threshold. As can be seen from the graphs in
Figure 12 “Compression ratio graphs of 2:1 and 12:1”, the higher the ratio, the greater the effect.
Figure 12: Compression ratio graphs of 2:1 and 12:1
At a compression ratio of up to 2:1, the effect is mild and suitable for the subtle compression of vocals or of
a complete mix. At 3:1, compression is becoming stronger and more noticeable. Ratios between 3:1 and
5:1 are suitable for the 'compressor' sound, which is used as an effect in its own right. Higher ratios are used
for the control of extremely peaky signals.
Input level (dB)
Output level (dB)
+20
+10
-10
-20
2:1
+10 +20-10-20
Input level (dB)
Output level (dB)
+20
+10
-10
-20
12:1
+10 +20-10-20