Audio Compression Calculator
COMP v1.0
-20 dB
-60
-40
-20
0
4:1
1:1
4:1
8:1
12:1
20:1
10 ms
0.1ms
10ms
30ms
60ms
100ms
100 ms
10ms
100ms
300ms
600ms
1000ms
0 dB
-30
-15
0
+10
0 dB
0
10
20
30
Gain Reduction
0.0 dB
Output Level
0.0 dB
Dynamic Range
100.0%
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Compression Curve
Threshold: -20 dB
Ratio: 4:1
Knee: 0 dB
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Compression Analysis
Compression Type
Moderate
Peak Reduction
0.0 dB
RMS Reduction
0.0 dB
Pumping Effect
Low
Transient Response
Fast
Recommended Use
General
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Formula
Gain Reduction = (Input - Threshold) × (1 - 1/Ratio)
For input above threshold
Output = Input - Gain Reduction + Makeup
Dynamic Range = 1 - (Gain Reduction / Input)
Compression reduces dynamic range for louder signals
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Compression Guide
- 1 Set threshold below peak levels
- 2 Choose ratio (2:1 to 20:1)
- 3 Adjust attack/release for timing
- 4 Add makeup gain to compensate