Setting Tempo Via Midi; The Compressor - Lexicon MPX 200 User Manual

MPX 200

Setting Tempo via MIDI

When used in conjunction with the Learn feature, Tap can
be set remotely from any MIDI device. MIDI controllers,
such as the Lexicon MPX R1 Foot Controller, can be used
to send Continuous Controller messages or Program
Changes to the MPX 200. You can also send Continuous
Controller or Program Change messages from the controls
of many mixing consoles. The MPX 200 will learn these
messages and allow you to set tempo via MIDI. The MPX
200 can also receive and utilize MIDI Clock.
See Section 5 – MIDI Operation – for instructions on setting
MIDI controllers.

THE COMPRESSOR

The MPX 200 compressor is used in either of two ways:
1. for subtle reduction of volume changes so that
quieter passages in your program material can
be made louder.
2. as a limiter to prevent your volume from exceed-
ing a certain level.
For subtle volume reduction, use a lower ratio and set the
threshold low enough so that the program material is
above threshold much of the time. For severe limiting, a
high ratio (10:1) is necessary, but the threshold should be
kept high enough so that only the loudest peaks are com-
pressed.
Attack controls how fast the compressor responds to vol-
ume increases. The best setting for Attack depends on the
frequency content of the program material. A fast attack
allows less sound to "leak through" before the compressor
reacts to sudden volume increases. However if the attack
time is shorter than the period of the predominant low fre-
quency in the music, the compressor will react to the
music's waveform, rather than its volume envelope, result-
ing in various forms of distortion. If you hear this with low
frequency material, increase the Attack.
Basic Operation
2-5