Tk-audio BC1-S User Manual download pdf (Page 2)

L+R: When engaged the side chain signals are summed to mono before hitting the threshold

detectors meaning that the compressor will be 6dB more sensitive to the centre information of

the mix. That usually means kick drum, snare drum, bass guitar and lead vocals. In most

cases L+R should not be used.

ATTACK: UF (ultrafast) / 0.1 / 0.3 / 0.6 / 1 / 3 / 10 / 30 / 60 / 120mS. The attack setting

defines the time it takes for the compressor to decrease the gain and reach the level

determined by the ratio. Faster attack settings means better control of the transient part of the

sound, but if set too fast the compressor might cut away more transients than wanted. A good

starting point is 10ms.

RELEASE: 50 / 100 / 300 / 600ms / 1.2S / Auto. The release setting defines the time it takes

for the compressor to increase the gain to the level determined by the ratio, once the level has

fallen below the threshold. Higher release settings will result in a less intrusive compression

with lower distortion, but if set too high the compression might not be effective enough. A

good starting point is 100ms or Auto.

AUTO RELEASE: Makes the release function time dependent on the duration of the signal

peak. In practise it’s a fire-and-forget setting that behaves the same way as a classic British

bus compressor used by many since the 80’s.

GAIN REDUCTION METER: The metering shows the average level (RMS) of the gain

reduction which differs from the peak level meters of most plug-ins - comparatively it’s slower

and in practise it means that a little goes a long way. The proper amount of compression on a

mix is usually done when the needle moves in the middle of 0 and 4. Higher ratio and faster

release settings will result in a more obvious compression/limiting that sometimes is too fast

for the needle to show. Always use your ears first and just use the metering as a quick

reference.

MAKE-UP: 0 to+20dB of gain in 41 steps to balance the compressed signal level against the

input signal level.

COMP IN: Engages and disengages the compressor. Should be used a lot to control how the

compressor is affecting the sound.

STRAIGHT MUTE: When engaged the uncompressed signal is muted; useful when doing

parallel compression and you just want to listen to the compressed signal.

BLEND: Straight to compressed sound in 21 steps. Turning the knob clock wise will mix the

original signal with the compressed signal. For more information please read the section

about parallel compression.

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Tk-audio BC1-S User Manual Page 2