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C2
Operators Manual
Page 25
Consider a compressor with a relatively high ratio of 8:1. A typical in-out transfer
function would be as below
2
. The very sharp introduction of gain reduction is
obvious at the threshold point (-20dB).
The ‘Knee ‘ parameter is set to 0dB in this example –
this corresponds to a ‘hard’ setting. Increasing the
‘Knee’ to its maximum of 12dB, spreads the onset of
the compression over a wider area, (6dB above and
6dB below the threshold), reducing the severity of the
compressor. This shows
on the graph as a
flattening at the
threshold, rather than a
sharp bend.
The
C2
offers three
preset knee settings:
Hard Knee: Compression begins
immediately the threshold is exceeded,
at the full ratio setting.
Medium Knee: Compression begins 6dB
below the threshold at half the set ratio,
and reaches full ratio 6dB above.
Soft Knee: Compression begins
12dB below the threshold at half
the set ratio, and reaches full ratio
12dB above.
2
Software screenshots are from SiDD PC control software, available for the SiDD dynamics processor
Summary of Contents for C2
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