Lexicon PCM91 Cut Sheet English Pcm8191sheet Original

Lexicon PCM91 Cut Sheet English pcm8191sheet_original Lexicon - PCM91 - Cut Sheet English

Lexicon PCM81 Cut Sheet English pcm8191sheet_original Lexicon - PCM81 - Cut Sheet English

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PCM 81 Highlights

•World-class Lexicon reverb

•2 DSP engines including Lexicon’s proprietary LexiChip®

•

24-bit A/D, D/A, and internal processing

•300 presets; 50 user programs

•Studio-standard reverbs and effects including: Reverb

and six voices of Delay or Reverb, four voices of Pitch

Shift, and Vocal Fix for replacing out-of-tune melody

lines

•A single Adjust knob that automatically attaches to all

applicable parameters in factory tailored presets

•

PCMCIA card slot for program storage

•Optional cards for algorithms, programs and user

presets

•Pro and Go Modes: Go mode allows access to as many

as 10 handpicked parameters for any particular preset;

Pro Mode allows full access to an Edit matrix of as

many as 100 parameters

•Dynamic Spatialization: 3D effects processing

(compatible with surround sound systems)

•Up to 20 seconds of delay

•Balanced analog inputs and outputs (XLR and 1/4")

•S/PDIF and AES/EBU digital inputs and outputs

•Tap Tempo for instant setting of delay and modulation

times

•Full MIDI control

PCM 91 Highlights

•World-class Lexicon reverb

•Dual proprietary LexiChip®DSP engines

•

24-bit A/D, D/A, and internal processing

•450 presets; 100 user programs

•Lexicon's "Greatest Hits" reverb algorithms, including

Chamber, Concert Hall, Random Ambience, Random

Hall, Rich Plate, and Split Chamber

•Keyword search for quick, intelligent sorting of presets

by alphabetical order or application

•Front panel Adjust knob automatically attaches to one

or more parameters in each factory tailored preset

•

PCMCIA card slot for program storage

•

Pro and Go Modes: Go mode allows access to as many as

10 handpicked parameters for any particular preset; Pro

Mode allows full access to an Edit matrix of as many as

100 parameters

•Balanced analog inputs and outputs (XLR and 1/4")

•S/PDIF and AES/EBU digital inputs and outputs

•Tap Tempo for instant setting of delay and modulation

times

•Full MIDI control

For over 30 years, Lexicon has been considered a pioneer in digital audio.With

more experience than any other manufacturer, it’s no surprise that the PCM

81 Digital Effects Processor and the PCM 91 Digital Reverberator represent

the most advanced systems in their class. Lexicon’s unique dual DSP platform

enables the PCM 91 to offer the highest quality reverb, and allows the PCM

81 to combine reverb with powerful, flexible effects. Professional digital inputs

and outputs (AES/EBU and S/PDIF) on both units, coupled with the legendary

“Lexicon Sound”, makes the PCM 81 and PCM 91 an essential combination.

Easy Operation

The PCM 81 and PCM 91 are as simple to operate as they are pleasurable to

listen to. Just load a preset and a useful parameter will become instantly

available on the Adjust knob. The next level was designed for professionals

who want to further customize programs, but lack the time to wade through

the myriad of available controls. In this mode, as many as 10 of the most

logical parameters in a given effect are easily accessible for customization. For

the sound designer, another mode allows access to the full Editing matrix

available in both units, as well as a user-assignable Soft Row in which to store

favorite parameters. It also provides access to the extensive modulation

capabilities of the PCM 81 and the dynamic reverb aspects of the PCM 91.

Digital Inputs and Outputs

The PCM 81 and PCM 91 feature professional AES/EBU and S/PDIF digital

audio input and output formats. S/PDIF coaxial and AES/EBU XLR digital

output connectors can be used simultaneously, doubling digital audio outputs.

Dynamic Patching

The PCM 81 and PCM 91 raise Dynamic Patching to a new level, providing

unprecedented control over the effects. Dynamic Patching gives these

processors a truly unique set of capabilities, from modulating sounds, to

producing unusual and ethereal spaces, to altering the attack and decay

characteristics of the sounds. With Dynamic Patching it is possible to exceed

simple modulation effects. The Dynamic Patching matrix maps data from 143

possible control sources to any effect parameter. These sources include 126

different MIDI controllers, as well as external sources such as footswitches

and footpedals. Internal controllers include Tempo (both internal Tap and

external MIDI clock), LFOs (Sine, Cosine, Square, Triangle, Pulse, and

Sawtooth), Time Switches, Latch, AR Generator, and Left and Right Envelope

Followers. Up to 10 patches can be created per effect. In a conventional patch

scaling configuration, modulation occurs between maximum and minimum

values. In the Dynamic Patching matrix, eight pivot points can be established

to create complex and interesting modulation paths.

Tempo Control

The PCM 81 and PCM 91 offer Tap Tempo control of delay lines as well as

several rhythmic variations on the tap. Tempo can be “dialed-in” in beats-per-

minute, MIDI clock can be generated from tap, or received via MIDI from an

external sequencer or drum machine. Tempo can also control LFO speeds and

time switches, allowing modulations to be synchronized with music.

Independent rhythmic values can be set for each parameter within the same

program. Tempos can be read as both rhythmic values and absolute time

values. The PCM 81 also offers more than 20 seconds of stereo delay.

Card Slot

The PCM 81 and PCM 91 are both equipped with an industry-standard

PCMCIA card slot, allowing users to store personal programs and setups on

cards. For the PCM 81, adding Lexicon’s Dual FX algorithm and specially

designed preset cards for the PCM 80 (compatible with the PCM 81)

increases its number of algorithms to more than 40 and presets to nearly 800.

PCM 81 Effects

The PCM 81 has everything that made the PCM 80 the top choice among

studio effects processors. In addition, it offers more effects, more algorithms,

and full AES/EBU input and output. Two digital signal processors; Lexicon’s

proprietary LexiChip®for reverb, and a second DSP engine to handle other

effects, create versatile effect combinations without compromising sonic

clarity. The PCM 81 offers more than all other processors in its class with;

24-bit internal processing, a true stereo signal path, balanced analog inputs and

outputs,AES/EBU and S/PDIF digital inputs and outputs, the power to combine

analog and digital outputs, extensive modulation capabilities, and 300 presets.

PCM 81 Sounds

The PCM 81 boasts an enormous selection of sounds. Each combines

uncompromised stereo reverb with several voices of additional effects. A full

complement of Pitch Shifters provides unique special FX as well as doubling,

quadruple tracking, Chorus, and Pitch Correction within a range of three

octaves up or down. With 300 presets, the PCM 81 allows instant access to

Pitch, Reverb,Ambience, sophisticated Modulators, up to 20-second

stereo Delays, and Dynamic Spatialization effects for 2-channel or

surround applications. Its presets were designed to accommodate a wide

www.lexicon.com/pcm81

www.lexicon.com/pcm91

group of programs designed for a given application. There are 50 keywords in

total, including four user-definable groups of effects.

PCM 91 Reverb

Lexicon’s research into the physics of acoustics is embodied in the Random

Hall algorithm. Echograms of real halls have dispelled the myth of pre-delay

and early reflections. In actual spaces, there is no empty interval between the

arrival of direct sound and the maximum reverb density filled by early

reflections. Instead, ambience builds gradually, with diffuse and complex

reflections that do not color the timbre of sound like fixed-delay taps.

Random Hall’s unique Shape, Size, and Spread parameters control the build-up

and decay of the ambient envelope. Size determines how large the space will

be. Shape controls the contour of the ambient build. At its highest settings, it

provides an inverse envelope for effects and gating. Spread controls the

duration of Shape, setting the build-up and sustain. Precision filters provide

spectral control of reverberation time, and unique Spin and Wander

parameters add random movement ensuring smooth reverberant decay. In

the PCM 91, Lexicon’s classic Concert Hall algorithm has been enhanced

with Spatial EQ and a Compressor to increase its versatility. The Rich Plate

algorithm provides simulated plate reverberation, as well as new variations on

this classic effect. The Ambience algorithm provides effects tailored

specifically to the post-production environment, permitting accurate matching

of previously recorded ambience. This allows new elements to blend

seamlessly, and sound effects, dialog, or music to be placed realistically at

different positions in the "space." Each of the PCM 91 algorithms include

selected tools for ambience, post-processing, and compression/expansion, as

well as modulation and patching parameters common to each. Ten Dual

Reverb algorithms are built-in to the PCM 91. These algorithms contain two

independent reverb blocks to create superb Dual and Cascade-configured

stereo reverbs, each with all the control features of the single effects.

PCM 91 Custom Controllers

Control in the PCM 91 has been increased with the addition of four Custom

Controllers placed on the Soft Row. These controllers consist of one or more

parameters patched together, each with individual scaling values. Custom

controllers effectively add four more Adjust knobs to each program.

range of applications, from effects designed for musical uses and recordings to

effects designed specifically for pitch correction, sound effects, and video post-

production. The PCM 81 also features updated versions of classic Lexicon

effects such as Concert Hall and Tiled Room.

PCM 81 Algorithms

The PCM 81 utilizes 4-voice, 6-voice, and Pitch algorithms to create effects.

The 4-voice algorithms; Chamber, Concert Hall, Infinite, Inverse, and

Plate. Each combine a specific reverb type with a 4-voice stereo “effect

toolbox” called the Reverb Shell, which provides post-processing for the

reverb. For example, it is possible to produce a Ghost Flange by assigning a

Modulated Delay to an Inverse Reverb (to Detune it). The 6-voice algorithms;

Chorus + Reverb, Glide, Hall, Multiband + Reverb, Res 1 > Plate, and

Res 2 > Plate, combine a specific reverb type with a specialized

6-voice stereo effect. In these algorithms, it is possible to combine the

shimmer of a multi-voice chorus with a lush reverb tail (as in Wet Chorus).

The on-board Pitch algorithms encompass all Pitch and Vocal Correction

algorithms and effects available in the PCM 80 via plug-in cards. Seven

algorithms include Pitch Correct for correction of monophonic sources, and

Stereo Chamber for full stereo pitch-shifting with Chamber reverb. A

powerful submixer is built into the Dual Chamber, Dual Inverse, and Dual

Plate algorithms for flexible ordering and routing of two independent voices

of pitch-shifting with reverb.A 4-voice Quad > Hall algorithm provides four

independent pitch-shift voices with full stereo reverb, and a VSO-Chamber

algorithm provides stereo time and pitch correction with Chamber reverb and

variable speed pitch control (in percent).

PCM 81 Dynamic Spatialization

Two independent spatial processors accommodate the placement of effects

virtually anywhere between or beyond the loudspeakers. Effects can also be

located dynamically, creating different spaces that change with the music.

PCM 91 Presets

The PCM 91 includes 450 presets which provide sounds for real-world

applications. The most useful parameters of each sound are located in a user-

definable Soft Row, allowing users to make quick and simple adjustments.

Navigation is further simplified with labeled banks and rows.

PCM 91 KeyWord Search

A unique KeyWord Search function in the PCM 91 enables users to locate a

Analog Audio Input: XLR and 1/4” balanced (T/R/S)

Input Level: -2dBu to +20dBu, balanced;

-22dBu to 0dBu, unbalanced

Input Impedance: 100kΩ, balanced;

50kΩ, unbalanced

Analog Audio Output: XLR and 1/4” T/R/S balanced

Output Level: +18dBm, balanced;

+4dBm, unbalanced

Output Impedance: 125Ω, balanced

Digital Audio Input: XLR, balanced;

Coaxial RCA, unbalanced

Format: AES/EBU, balanced;

S/PDIF, unbalanced

Sample Rate: 44.1kHz and 48kHz

Digital Audio Output: XLR, balanced;

Coaxial RCA, unbalanced

Format: AES/EBU, balanced;

S/PDIF, unbalanced

Sample Rate: 44.1kHz and 48kHz

Conversion: 24-bit A/D; 24-bit D/A

Internal Audio DSP: 24-bit (PCM 81); 20-bit (PCM 91)

Frequency Response: 10Hz - 20kHz ±.5dB

Crosstalk: -55dB 10Hz to 20kHz

THD: <0.006%, 10Hz - 20kHz

Dynamic Range: D/A: >98dB typical, 10Hz - 20kHz

A/D: >105dB typical, 10Hz- 20kHz

A/A: >96dB typical, 10Hz - 20kHz

MIDI Interface: 5-pin DIN connectors for

MIDI IN, THRU and OUT

Footswitch: 1/4" T/R/S connector for two independent

momentary footswitches (system detects

normal-open, or normal-closed on

power up)

Foot Controller: 1/4" T/R/S connector for foot pedal

(100Ω- 10kΩimpedance)

Memory Card

Connector: PCMCIA type l cards, 68 pins

Standards: PCMCIA 2.0 and JEIDA 4.0

Card Format: Up to 1MB of SRAM

(attribute memory not required)

Power Requirements: 100 - 240 volts AC; 50 - 60Hz; 35 watts

(3-pin IEC connector)

Remote Power In: 2.5 mm 9 volts AC (not included)

Dimensions: 19" W x 1.75" H (1U) x 12" D

(483 x 45 x 305 mm), rack mount standard

Weight: 6.4 lbs. (2.9 kg)

Operating Temperature: 32° to 104°F (0° to 40°C)

Maximum Humidity: 95% without condensation

PCM 81

PCM 91

The PCM 81 and PCM 91 are each equipped with an industry-

standard PCMCIA card slot, allowing users to store personal

programs and setups on RAM cards. For the PCM 81, adding

Lexicon’s Dual FX algorithm and specially designed preset cards for

the PCM 80 (all of which are compatible with the PCM 81) increases

its number of algorithms to more than 40 and its number of presets to

nearly 800.

Lexicon PCM91 Cut Sheet English Pcm8191sheet Original