dbx 128 - HOW TO SET UP COMBINATION APPLICATIONS; Recording with Noise Reduction and Expansion; Peak Limiting During dbx Decoding

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HOW TO SET UP COMBINATION APPLICATIONS
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Tape Noise Reduction plus any one of the following:
expansion, peak expansion (unlimiting), compression or
peak compression ape.
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cw to Record Using adios I! Tape Noise Reduction Plus
Expansion
1. Set the 128’s front panel switches and controls as
shown.
THRESHOLD pa pLay
= LEVEL MATCH
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2. At this point, before recording, set the COMPRESS/
EXPAND control (the amount of expansion) while listen-
ing to the program through the 128’s expander section.
Set the LEVEL control to a point where the BELOW
THRESHOLD and ABOVE THRESHOLD indicators are
amber during quiet passages and red during loud passages.
3. Set the 128’s LEVEL control so the above
THRESHOLD LED lights only on musical peaks, or
for the desired effect.
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How
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Limit
while
Decoding
a
dbx
Il-Encoded
Program
1,
Set
the
128’s
front
panel
switches
and
controls
as
shown.
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THRESHOLD mooe: Play
LEVEL MaToH
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DYNAMIC RANGE ENHANCER i
NOISE REDUCTION
SYSTEM
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2. Set the TAPE/DISC for the program being played.
3. Set the COMPRESS/EXPAND control between 10
and infinity, and set the LEVEL control so that the
ABOVE THRESHOLD (req) indicator illuminates only
on musical peaks, or for desired effect.
4. Play the tape.
5. tf the playback volume is considerably louder or
quieter than the original recorded volume, adjust the 128’s
PLAY LEVEL MATCH.