Roland VXpanded VS-880 Application Manual page 128

De-esser
An audio signal processing device that is used to
remove excess sibilance (the lispy "sss" sound) from
certain vocal tracks. Generally, a de-esser is a
specialized form of compressor with an equalizer in
its level detection circuit that causes it to be more
sensitive to high frequencies, thus restricting high-
level high-frequency sounds. Unlike a simple filter or
equalizer, moderate level high frequency sounds are
not affected.
Delay Line
A device which delays an entire audio program
signal by a certain length of time, usually from 0 to
500 milliseconds. Commonly used in recording and
sound reinforcement (for echo or special effects).
Analog Delay
Describes the electronic process by which the
signal is delayed; stores actual signal voltages
(analog signal).
Digital Delay
Describes the electronic process by which the
signal is delayed; stores binary numbers (digital
processing) that represent the analog signal
voltage levels.
Tape Delay
Uses magnetic recording and immediate
playback to delay the signal; delay comes from
time required for tape to move from record head
to playback head(s).
Digital
A numerical representation of the actual analog
frequency and level of and audio signal. " Digital"
also may refer to a control or circuit which changes
the level or the assignment of a signal in discrete
mathematical steps rather than continuously variable
amounts.
DIN connector
Deutsche Industrie Normen. German Industrial
Standards. In audio, the German set of standards for
audio connectors, etc. Widely used throughout
Europe.
Distortion
Distortion is an unwanted change that occurs to and
audio signal, causing frequencies to appear at the
output that were not present at the input of the audio
device. There are several types of distortion.
Dynamic Microphone
A type of microphone which converts acoustical to
electrical energy by means of a permanent magnet
and a moving coil. Dynamic microphones do not
require external power. Some dynamic microphones
have very high quality and are commonly used in
recording and sound reinforcement.
Echo
One or more discretely discernible sound images.
Echo Return
A mixing console input that receives the signal from
a reverberation chamber or device. Many mixing
consoles have a level control to adjust the amount of
reverberation signal returned to the program mix;
this is called the echo return control
Echo Send
A mixing console output that sends a signal to the
input of a reverberation chamber or device. Most
mixing consoles have an echo send level control for
each input position (channel) so the musical mix sent
to the reverb unit can be adjusted; many consoles
also have a master echo send control for the echo
send Buss.
Effects Buss
In a mixing console, the Buss or channel which is
used to feed a program to special signal processing
equipment or effects devices. Also known as the
effects send Buss. Typical effects devices include
delay lines, phasers, and flangers, as well as echo/
reverb units.
Effects Return
A mixing console input that receives the signal from
an effects device. Many mixing consoles have a level
control to adjust the amount of effects signal
returned to the program mix; this control is called the
effects return control.
Effects Send
A mixing console output that sends a signal to the
input of an effects device. Most mixing consoles have
an effects send level control for each input position
(channel) so the musical mix sent to the device can be
adjusted; many consoles also have a master effects
send control for the effects send Buss.
Encode
Refers to the act of processing a signal by adding or
subtracting signal components. Encoded audio
signals are usually intended to be Decoded before
listening to them.
Chapter 8: Appendix
127