VocoPro KC-300Pro - Manual (Page 18)

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Multiplex (MPX) – Multiplex is a type of Karaoke software that has specially formatted left and right channels to
make multiplex features available. To be formatted for multiplex use, a disc must have the vocals coded to the right
channel and the music to the left channel. When you select a multiplex mode, the unit will remove the right channel
(vocals) and split the left channel (music) to both sides.
Mute – A mode that turns off the audio output to the monitor speakers. Used when a microphone is in the same
room as the monitor.
NTSC – National Television Systems Committee. Organization that formulated standards for the NTSC television
system. Now describes the American system of color telecasting which is used mainly in North America, Japan,
and parts of South America.
Out of Phase – When speakers are mounted in reverse polarity, i.e., one speaker is wired +/+ and -/- from the
amp and the other is wired +/- and -/+. Bass response will be very thin due to cancellation.
PAL – Phase Alternate Line. The name of the color television system in which the EV component of burst is
inverted in phase from one line to the next in order to minimize hue errors that may occur in color transmission.
PAL is a European color TV system used mainly in Europe, China, Malaysia, Australia, New Zealand, the Middle
East, and parts of Africa.
Pre-Amplifier – Or Pre-amp is a device that takes a source signal, such as from a turntable, tape deck or CD
player, and passes this signal on to a power-amplifier(s). The pre-amp may have a number of controls such as
source selector switches, balance, volume and possibly tone controls.
Rack Mountable – Rack Mountable refers to the ability to place unit into professional or travel rack cases. Such
cases are great for building complete systems and protect them during transportation. The standard rack size for
MOST cases is 19”.
Repeat – Repeat is facet of the echo process. Repeat refers to the frequency of echoes within a period of time.
Sub-Code – Sub-code is specially coded area of data used by CD+G manufacturers to produce lyrics for Karaoke
video output.
Tweeter – A speaker, (driver), used to reproduce the higher range of frequencies. To form a full-range system, a
tweeter needs to be combined with a woofer, (2-way system), or a woofer and midrange, (3-way system).
VCD – VCD is a disc formatted in MPEG-1. These discs are good candidates for Karaoke use as they have an
audio and a video layer to them. VCD stands for Video Compact Disc.
Vocal Cancel – Vocal Cancel is a feature that removes vocals from multiplex CD tracks. To be multiplexed, a disc
must have the vocals coded to the right channel and the music coded to the left channel. When you select Vocal
Cancel, the unit will remove the right channel (vocals) and split the left channel (music) to both sides.
Vocal Partner – Vocal Partner is a feature that removes vocals from multiplex CD tracks much in the same way as
Vocal Cancel, but with an added “auto-pilot” function. The main difference is that Vocal Partner will only remove
vocals as long as there is activity going through the microphone (singing). When you stop singing, the vocals
automatically return.
Vocal Reducer (Eliminator) – Vocal Reducer is a feature that removes vocals from standard non-multiplex CD
tracks. To do this, the unit compares the audio on the left and right channels, and cancels out any signals that
appear on both. Most currently recorded CD’s contain the vocal layer on both sides, however some may not,
leading to varying results. This feature is also referred as "Vocal Eliminator"
Woofer – A speaker used for low-frequency reproduction, usually larger and heavier than a midrange or tweeter.
Y-Adapter – A type of adapter that splits a signal into two parts. An example would be a connector with one male
RCA jack on one end, and two female RCA jacks on the other end.
Glossary of Terms