Focusrite TwinTrak Pro Mode D'emploi page 90

OPTICAL COMPRESSOR
•
Threshold hold range = -12 dBfs (10 dBu) to –42 dBfs
(-20 dBu).
•
Compressor ratio (Hard Ratio switch out) = 2.5:1
•
Compressor ratio (Hard Ratio switch in) = 6:1
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Attack time (Slow Attack switch out) = 0.5 ms.
•
Attack time (Slow Attack switch in) = 5 ms.
•
Release time = 100 ms to 1 s and then auto release
mode when the release knob is turned fully clockwise.
Auto release creates a release time dependent upon the
average level of the incoming signal.
•
Noise = -94 dBu measured with a 20 Hz/22 kHz
bandpass filter.
•
Makeup gain = 0 to +21 dB.
Ratio:
COMPRESSOR SIDECHAIN INSERT
Can be used to input an independent signal to trigger
compression or to allow the sidechain audio to be sent
in and out of the unit via an external processor, such as
an EQ for frequency conscious compression and de-
essing of vocals.
Connector is an unbalanced input and output on
balanced (TRS) socket as follows:-
Tip = Send (Output)
Ring = Return (Input)
Signal level equivalent to –6 dB below normal
operating level.
MID SCOOP EQ
•
EQ shape = Peak
•
Centre frequency = Variable between 120 Hz and 2
kHz
•
Cut (Deep switch out) = -6 dB
•
Cut (Deep switch in) = -12 dB
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Q (Deep switch out) = 1.5
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Q (Deep switch in) = 3
FX SEND
Unbalanced output, signal level equivalent to –6 dB
below normal operating level.
Noise = -94 dBu measured with a 20 Hz/22 kHz
bandpass filter.
Maximum output signal level = +20 dBu
FX RETURN
Balanced input
Operating level = +4 dBu
HEADPHONES MIX
Unbalanced output, signal level equivalent to –6 dB
below normal operating level.
Noise = -94 dBu measured with a 20 Hz/22 kHz
bandpass filter.
Maximum output signal level = +20 dBu
MONITOR INPUT
Balanced input
Operating level = +4 dBu
MONITOR OUTPUT
Balanced output
Operating level = +4 dBu
Noise = -98 dBu measured with a 20 Hz/22 kHz
bandpass filter and monitor level knob at maximum
output level (fully clockwise).
Maximum output signal level = +26 dBu
DAC PERFORMANCE
Playback sample frequency = 32 kHz to 192 kHz.
Maximum bit depth = 24 bit
Maximum analogue output level = +21 dBu.
Dynamic Range = 111 dB measured with A weighted
filter.
Wordclock BNC connector outputs a regenerated
wordclock at the sample frequency contained within
the SPDIF signal connected to the RCA connector.
OUTPUT METER
•
Calibrated for 0 dBfs = +22 dBu and indicates the level
after the output fader being sent to both the internal
AD converter and the TwinTrak Pro XLR output.
•
O/L LED is lit when any section of the unit (including
the headphone output) reaches a level greater than 0
dBfs (O/L: LED triggered at +22.4 dBu).
WEIGHT
•
5 kg
DIMENSIONS
•
482 mm (W) x 88 mm (H) x 180 mm (D)
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