Detailed instructions for use are in the User's Guide.
[. . . ] MPX 100 Dual Channel Processor
Stereo 44. 1kHz S/PDIF Digital Output
User Guide
Unpacking and Inspection
After unpacking the unit, save all packing materials in case you ever need to re-ship. Thoroughly inspect the unit and packing materials for signs of damage. Report any shipment damage to the carrier at once; report equipment malfunction to your dealer.
Notice
This equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer's instructions, may cause interference to radio and television reception. It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Subpart J of Part 15 of FCC Rules, which are designated to provide reasonable protection against such interference in a residential installation. [. . . ] 3 Program Load Mute/Bypass This parameter determines whether the MPX 100 will engage wet mute or simply bypass processed audio during program load. 4 Digital Output Dry/Wet For certain recording and monitoring applications, this parameter allows you to choose to pass only dry audio, or to resume output of the full, processed signal. 5 MIDI OUT/THRU Out/Thru Sets the rear panel MIDI OUT/THRU jack for either MIDI OUT or MIDI THRU functionality. 6 MIDI Pgm Change Disable/Enable The setting of this parameter determines whether or not the MPX 100 will recognize MIDI Program Change messages for loading programs. 7 MIDI Clock Receive Disable/Enable The setting of this parameter determines whether or not the MPX 100 will recognize MIDI Clock messages. 8 Tempo Program/Global Determines whether the current tempo of the MPX 100 will be applied to all programs (Global), or whether program-specific tempos are restored on each program load. See MIDI Operation.
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Program Descriptions
The 240 programs in the MPX 100 are designed to provide a full palette of high caliber ambience, reverb, delay, pitch shift and other effects. The Adjust knob has been carefully customized for each individual program. In many cases it controls several effect parameters simultaneously to provide simple control of a complicated editing process. In many Chamber and Room programs, for example, Adjust controls the "liveness" of the space by changing decay, EQ and early reflections all at the same time. The behavior of the Adjust knob is also customized for different functions. Sometimes it acts as a linear control (at its minimum value when turned fully counterclockwise -- like a volume control) and sometimes it acts as a bi-polar control (at its minimum value when centered -- like a cut/boost EQ control).
Adjust can increase values linearly. . . or it may increase values as it is turned to either side of its center position.
The following section provides a general description of each MPX 100 program along with tables that detail all of the program versions available with the VARIATIONS knob. These details include the function of the Adjust knob and the Tap button (for variations that use tempo-controlled rate or delay times).
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Plate VARIATIONs
1 2 3 4 5 6 7 8 Small Plate Medium Plate Large Plate Larger Plate Tape Slap Plate Rich Plate Large Bright Plate Vocal Plate
Adjust
Liveness Liveness Liveness Decay Time ± Decay/15ips or 7. 5ips Decay Time Decay Time Low Cut, Decay Time
Tap
Predelay (1/32 Note) Predelay (1/32 Note) Predelay (1/32 Note) Predelay (1/32 Note) Echo
Plate
The Plate program in the MPX 100 synthesizes the sound of metal plates with high initial diffusion and a relatively bright, colored sound. This program is designed to be heard as part of the music, mellowing and thickening the initial sound. It is a popular choice for enhancing popular music, particularly percussion.
Plate reverb was originally generated by a large, thin sheet of metal suspended upright under tension on springs. Transducers attached to the plate transmitted a signal that made the plate vibrate -- making sounds broadcast through the plate seem to be occurring in a large open space.
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Gate VARIATIONs
9 10 11 12 13 14 15 16 Straight Gate Drum Gate Slope Down 140 ms Gate 240 ms Gate 340 ms Gate 440 ms Gate 540 ms Gate
Adjust
Duration* Duration* Duration* High Cut High Cut High Cut High Cut High Cut
Tap
Predelay (1/32 Note) Predelay (1/32 Note) Predelay (1/32 Note) Predelay (1/32 Note) Predelay (1/32 Note)
Gate
In the MPX 100, the Gate program provides a fairly constant sound with no decay until the reverb is cut off abruptly. This program works well on percussion -- particularly on snare and toms, but be sure to experiment with other sound sources as well.
* Note that audio is muted briefly when Duration is altered with Adjust.
Gated reverbs were originally created by feeding a reverb, such as a metal plate, through an analog gate device. The decay time was set to instant, and the hold time varied the duration of the sound.
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Hall VARIATIONs
1 2 3 4 5 6 7 8 Recital Hall Small Church Jazz Hall Dance Hall Synth Hall Medium Hall Large Hall Large Church
Adjust
Decay Decay Decay Decay Decay Decay Decay Decay
Tap
Hall
The clean reverberation of the Hall program is designed to add spaciousness, while leaving the source material unchanged. In addition to general instrumental and vocal applications, the Hall program is a good choice for giving separately recorded tracks the sense of belonging to the same performance.
Lexicon's Hall programs recreate the acoustics of actual places, from grand reverberant enclosures to small concert halls.
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Chamber VARIATIONs
9 10 11 12 13 14 15 16 Brick Wall Basement Live Concert Percussion 1 Percussion 2 Live Chamber Vocal 1 Vocal 2
Adjust
Liveness Liveness Liveness Liveness Liveness Liveness Liveness Liveness
Tap
Eko Delay Eko Delay Eko Delay
Chamber
In the MPX 100, the stereo Chamber program produces an even, relatively dimensionless reverberation, with little change in color as the sound decays. The initial diffusion is similar to the Hall program, but the sense of space and size is much less obvious. This characteristic, along with the low color of the decay tail makes Chamber useful on a wide range of material. [. . . ] Once a bank is selected, all subsequent Program Change messages will select programs within that bank until a new value for controller 32 is received, or until the PROGRAM or VARIATION knob is moved. This function can be disabled with the MIDI Pgm Change parameter in System Mode.
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MPX 100 Program Banks 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 User Flange-Delay Pitch-Delay Chorus-Delay Delay Reverb Flange-Reverb Pitch-Reverb Chorus-Reverb Plate, Gate Hall, Chamber Ambience, Room Tremolo, Rotary Chorus, Flange Pitch, Detune Delay, Echo Special FX
Learning Continuous Controllers
The MPX 100 recognizes Pitch Bend, AfterTouch and MIDI Continuous Controllers 1-31 and 33-119. (The Store LED flashes slowly and the Tap LED lights steadily to indicate Learn Mode is active. )
2. Move one of the MPX 100 front panel controls (Mix, Effects Lvl/Bal, Adjust, Bypass or Tap) to assign it to the controller.
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