Mid Scoop Eq - Focusrite TwinTrak Pro Mode D'emploi

- This provides an extra 20 dBu of gain which is ideal
HIGH GAIN (switch)
when working with passive instruments. The LEVEL knob can then be used to adjust
the gain level more accurately. To assess if HIGH GAIN is required, connect a sound
source with the input LEVEL set to -10. Gradually increase the input level. If you are
unable to get the level you require, even with the trim at +10, bring the LEVEL back
to -10 and engage the HIGH GAIN switch. Now return to the LEVEL and adjust
accordingly.
INSTRUMENT (switch), LINE (switch) and MIC (LED)
TwinTrak Pro, you can select whether to record at mic, line or instrument level, all
from the front fascia. If you wish to record via the INSTRUMENT INPUT, simply
engage the INST switch. Once selected, it will illuminate. If you wish to record via
the LINE INPUT, the INST switch must be disengaged, then simply engage the
LINE switch. It too will illuminate when engaged. The MIC LED will illuminate if
neither of the other input options are selected, and the MIC input will be selected
automatically.
- This is used to set the optimum input signal level. Connect an
LEVEL (knob)
input signal to the unit, ensuring that the LEVEL control is set fully counter-
clockwise, and increase the LEVEL control whilst observing the LED signal meter.
The red O/L (overload) LED may light occasionally, but only if the input signal gets
particularly loud. If the O/L LED stays on continuously for any period, or you hear
the unit distort during loud peaks, you should reduce the input LEVEL.
Note that the meter is calibrated to read 0 dBfs at the top of the meter - this has been
set up to enable simple metering when recording to digital media. The best level to set
for recording depends on your recording medium. If recording to an analogue
medium like tape, where extra headroom is required, a level of –18 dBfs will give a
suitable +4 dBu equivalent output. If recording to digital media, you may wish to
record at a higher level, peaking at e.g. –4 to –6 dBfs. Confused? Visit
www.sospubs.co.uk/sos/may00/articles/digital.htm for further illumination.
With the MIC INPUT selected, the LEVEL control provides 0 dB (fully counter-
clockwise) to +60 dB (fully clockwise) of gain. With the INSTRUMENT INPUT
selected, the LEVEL control provides 0 dB to +20 dB of gain, with an additional 20
dB of gain available with the HIGH GAIN switch engaged, i.e. +20 dB to +40 dB.
With the LINE INPUT selected, the gain is adjustable from –10 dB to +10 dB.
Setting the LEVEL control to the 12 o'clock position will not alter the gain of a line
level input signal.
Ø (Phase Reverse switch)
reversed. When recording a single source using more than one microphone, it is
possible for the signals from the microphones to be out of phase, which affects the
quality of the recording since signals that are out of phase tend to sound 'thin'. For
- This allows the phase of the input signal to be
example, when recording a snare drum with two microphones (one on the top of the
snare, the other on the bottom) they will be out of phase.
Use the phase reverse switch to reverse the phase on one of the microphones (but not
both) - it normally doesn't matter which microphone you reverse. However, if the
source is being picked up by another microphone (for example, by an ambient
microphone) then you need to ensure that you do not put your two close
microphones out of phase with the ambient microphone.
- With
If you think two signals are out of phase, you can listen for phase as follows:
1. On your monitoring system, pan one signal left and the other right.
2. Set the monitoring to mono.
3. Use the phase switch to reverse the phase on one of the signals. When the two
signals are in phase, the signal sounds bigger.
(HPF switch)
frequencies such as stage rumble via microphone stands, or 'proximity effect' (where
low frequencies are over-emphasised when using certain types of microphone at close
range). The cut-off frequency is 75 Hz with a slope of 18 dB per octave.
INSERT (rear panel connector)
panel allow additional external signal processors to be inserted into the signal chain
between the pre-amp and the other processing sections of TwinTrak Pro. This insert is
a single TRS jack, configured as tip = send, ring = return. A specially configured lead
(not provided) will allow you to connect this single point to both the input and output
of an external signal processor, bringing the signal back to the point from which it was
sent after the benefit of external processing.

MID SCOOP EQ

The MID SCOOP EQ section allows you to cut the selected frequency by up to 12
dB. This can be useful for removing troublesome frequencies when recording acoustic
instruments and bass guitars.
– Switches the MID SCOOP EQ into the signal path. When engaged,
IN (switch)
the red LED in the switch cap is lit.
- This is a high-pass filter, which removes unwanted low
- The INSERT connectors on the rear
ENGLISH
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