Tips & Tricks - Signal Audio Workshop CH-2 Owner's Manual

Vacuum tube 2-channel microphone pre
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Tips & Tricks:
1. stereo recording: one of the most common methods of recording
stereo signals is done by locating two identical microphones in an
x/y mode and the calibration of the gain should be done by the
following steps:
A. Calibrate channel 1 gain to optimum
recording level by viewing the "in level"
meter on your recorder.
B. Repeat step A on channel 2.
C. Reverse the phase on channel 2.
D. Press mono on your control room
monitoring system.
E. Re trim the gain on channel 2 to maximize phase cancellation
between the two sides.
F. Return to normal phase and stereo mode.
2. As a rule of thumb: calibrate record level will be done by viewing
the recording level of the recorder and not other meters that may
be on the recording chain (such as compressor etc`).
3. Some microphones may produce very high output level,
therefore we recommend using the -20db pad switch, in cases of
high S.P.L. recorded otherwise the channel may clip while
recording.
4. Cutting environmental rumbles with the 65 Hz H.P.F. on male
vocals is preferably done even without compensating low
frequency with external EQ by wisely manipulating the proximity
effect of cardioid microphones.
5. M-S recording technique: place 3 microphones (center, left &
right) according to the diagram:
Reverse phase on left microphone.
Combine the three microphones on
your mixer. The sides channels
should be hard panned L<>R, and
center panned to the center. The
center microphone level in the
resulted mix will affect the stereo
images width
according to the balance between sides and center microphones.
7

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