10
UniSyn
Universal Audio to Synth Interface User’s Manual
3:1 Compression Curve
‐16
‐14
‐12
‐10
‐8
‐6
‐4
‐2
0
‐24 ‐22 ‐20 ‐18 ‐16 ‐14 ‐12 ‐10
‐8
‐6
‐4
‐2
0
Ou
tput
Lev
el
(dB
FS
)
Input Level (dBFS)
The UniSyn 3:1 compression utilizes upward compression,
meaning the gain is increased as the signal level falls below full
scale according to the compression ratio. As the signal level
falls, the gain will increase by a maximum of 8dB before it stops
increasing. The gain reaches this maximum increase of 8dB when
the input level reaches -12dBFS, after which the output level will
fall linearly as the input level keeps falling.
The compression attack time is nearly zero, chosen so to keep
the input from clipping under all cases. The release time isn’t a
constant, but rather depends on the fundamental frequency of
the audio. Release time is close to two cycles of the detected
fundamental frequency. These compression parameters are
chosen to make the compression as transparent and “musical” as
possible.
