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SPECIAL
OPERATIONS
Microphone and Line Mixing
'The TC-788-4 provides a MIC-and-LINE mixing facility for each
channel.
1, Connact the program sources to be mixed to the correspond
ing MIC of LINE INputs, Tho mic- and line-inputs belonging to
'one channel an now be mixed.
2, Set the MONITOR svitchas to SOURCE.
2. Adjust the desited mixing levels while monitoring through
headphones, The VU-meters indicate the composite recording
evel of line- and
mic-inputs.
4. Start the rocdrding as explained in chapter "4-Chsanel Record-
Ing" on page TI.
Mixing with the Use of the Panoramic Potentiometar
{PAN POT)
The PAN POT was designed to utilize the otherwise idle beck
channel amplifiers for normal 2-channel stereo recordings in the
most versatile manner. AS 2 result, up to two MIC and two LINE
INputs can bo mixed onto-each front channel at the same time, or
'up to three MIC and three LINE INputs onto one front channel.
'Tho PAN POT Is especially useful whon the seperate recording of
each instrument of a jazz or rock group is required, or tor making
balanced recording with the microphanes in cases that osually
'cannot be balanced, or when recording one or two soloists against
the stereo background of an ensemble of orchestra, In eny case
the PAN POT exactly defines the position of sound sources be-
tween the
stereophonic laft and right.
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Volume of the
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LB inputs
16
How to use the PAN POT:
1. Connect the signal sources whose acoustical position you went
to change to the LB or RB MIC or LINE INputs. The LF and
RF input-positions cannot be influenced.
2. Insert headphones to the Front 2 CH HEADPHONE jeck and
set the HEADPHONE ewitch to 4 CH (2 CH).
3, Move all four MONITOR switches to SOURCE.
4. Adjust the front channel record level with the Front REG LEVEL
controls.
5. Set the PAN POT switch to ON. The green PAN POT lamp
'will Eight to indicate that the pancramie potentiometers ars
eotivated.
6. While listening through headphones regulote the strength of
the added signals at the Back REC LEVEL controls, and their
position between left and right at the PAN POT controls, This
can be carried out separately for each-back channel. Turning
of one of the PAN POT controls fully to the LF-position feeds
the signal of the respective channel to the feft front channel
'only, turning to AF to the right front channel only. At © the
signal
is distributed evenly between LF ond AF. In betwoen all
other mixing positions ean ba taken up continuously.
'01 very high
input signals should occur during l i v e recording with
microphones, the MIC ATTenuater of each channal can be used
separately to prevent overload distortion of the mic amptitiers.
'#The back VU-meters show the signal strength of the back chan-
nels only, whereas the front VU-meters show the strength of tho
composite signals, j . e , the actual recording level.
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