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Dynamig cange
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How the dbx Works
TALE
EN
Ee
A compression factor of 2:1 is used before recording;
then, .1:2 expansion
on reproduce. These compression
and expansion factors are linear in decibels and allow the
system to produce tape recordings with over a 100 dB
dynamic range — an important feature, especially when
you're making live recordings. The DBX employs RMS
level sensors to eliminate compressor-expander tracking
errors
due
to
phase
shifts in the tape recorder,
and
provides excellent transient tracking capabilities.
To
achieve
a large reduction
in audible
tape hiss,
without
danger
of overload
or
high-frequency
self-
erasure
on
the tape, frequency
pre-emphasis
and de-
emphasis are added to the signal and RMS level sensors.
SUBSONICS AND INTERFERENCE
Care and Maintenance
CLEANING
DEGAUSSING (DEMAGNETIZING)
31
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