ENSONIQ DP/4+ Reference Manual page 172

Chorusing An audio effect that takes place when a source signal is pitch modulated and mixed with
the original source signal. These modulations create phasing characteristics that make
the source signal sound wider/bigger. Usually delays of 10-30 milliseconds will create
pleasant choruses.
Compression The amount by which a signal is compressed. For example, a 4 to 1 compression ratio
Ratio means that signals above the threshold will cause an increase of 1dB in output level for
every 4dB increase in input level. At high ratios (like 20:1 and above), the compressor
acts as a limiter.
Compressor A signal conditioning process that reduces a source signal's dynamic range. Loud signals
get softer and softer signals get louder.
Config A Config (short for CONFIGuration) controls how the DP/4+ handles signals by
determining the number of input sources to be processed, how they are to be
interconnected, and where the outputs will appear.
There are several uses of the term Config and it is important to understand the
distinctions between them. Some terms used in these definitions may not yet be familiar,
but they are described later in this glossary.
Config(uration) — This general term refers to the current signal routing arrangement that
the system is using. It includes all routing parameters.
Config Parameter — Any one of the parameters which appear in Edit mode when the
Config LED is on.
Input Config — The Config parameter which controls how many input signals are to be
processed by the DP/4+ (equivalent to Source Config).
Config Preset — This the largest type of preset in the DP/4+. It contains all the signal
routing information, such as which inputs are routed to which outputs, whether the
individual units (A, B, C and/or D) are run in serial, parallel, or feedback, and which
units are bypassed. Additionally, a Config Preset loads each of the units with an effect
and its associated parameters.
Important: Setting up the correct Config is the most important action when
using the DP/4+. The Config controls how the system operates in many important
ways. It is very important to understand this concept clearly in order to avoid later
confusion. Please refer to Section 3 — Config Parameters for more details on this
essential concept.
Damping A parameter in the DP/4+ that allows control of high frequency decay in reverb
algorithms. You can use damping to customize the perceived size and ambience of an
environment (making it wetter/drier or brighter/darker).
The term "damping" is derived from the German word "damphen," which means
deaden, muffle, mute.
A bit of trivia: In the early film-making days, when actors needed to read newspapers
(or any paper-based document), the turning of pages caused so much noise in the film,
that a solution was required to eliminate the noise. Soundmen discovered that if the
paper was wet (with water), the crinkling noise of the pages was gone. Although this
process is not required in today's film-making standards, it is another example of early
"damping" techniques.
De-esser A specialized algorithm that reduces the level of sibilance in a source signal through
selective high frequency compression. This sibilance is usually heard as an "s" sound in
speech, hence the name De-esser.
ENSONIQ DP/4+ Reference Manual
Glossary
III