Lexicon PCM92 Owner's Manual
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Lexicon PCM92 Owner's Manual

Reverb/effects processor
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  • Page 1 Professional Audio Equipment...

  • Page 2: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS Safety InStructIonS Notice For customers iF Your uNit is equipped With A poWer cord. WArNiNG: this AppLiANce shALL Be coNNected to A mAiNs socKet outLet With A protectiVe eArthiNG coNNectioN. the cores in the mains lead are coloured in accordance with the following code: GREEN and YELLOW - Earth BLUE - Neutral BROWN - Live...

  • Page 3: Declaration Of Conformity

    Vice president of engineering 8760 s. sandy parkway sandy, utah 84070, usA date: November 4, 2009 european contact: Your local Lexicon sales and service office or harman music Group 8760 south sandy parkway sandy, utah 84070, usA ph: (801) 566-8800...
  • Page 4 4. Lexicon Professional reserves the right to make changes in design or make additions to or improvements upon this product without incurring any obligation to install the same additions or improvements on products pre- viously manufactured.

  • Page 5: Table Of Contents

    Combined Stereo Mono In ... 14 NetWoRKING ... 15 Overview of TCP/IP Basics ... 15 Connecting the Computer Directly to the PCM92 ... 16 Setup of a Simple Isolated Ethernet Network Using DHCP ... 16 Virtual Private Networks (VPN) ... 16 Network Considerations and Limitations ...
  • Page 6 Resonant Chords (Stereo and Mono) ... 32 Chorus/Flange (Stereo only) ... 33 Concert Hall (Stereo only) ... 33 Room (Stereo and Mono) ... 33 Signal Generator ... 33 the PARAMeteRS ... 35 PcM92 MeNU NAvIGAtIoN MAPS ... 43 PcM92 SPecIFIcAtIoNS... 53 MIdI IMPLeMeNtAtIoN chARt ... 56...

  • Page 7: Introduction

    “liveness” to the space. With two channels XLR analog and two channels XLR AES/EBU digital I/O, as well as MIDI and Ethernet connectivity, the PCM92 easily fits into a variety of recording and live sound environments. In any application, the PCM92 delivers the versatility and sound that is unmistakably Lexicon.

  • Page 9: The Front Panel

    Each pair of Gain LEDs indicate input signal strength of each of the PCM92’s inputs. If the Audio Source is set to Analog (in the Audio Setup menu), they show analog levels. If Audio Source is set to Digital, they show digital levels.
  • Page 10 9. BACK Pressing this button moves you up one level in the menu tree. Note that when a System preset is loaded, this button takes you to the System Mode Category Selection menu. When a Machine preset is loaded, the Back but- ton takes you to the Machine Mode Category Selection menu.

  • Page 11: The Rear Panel

    Footswitch or Foot Pedal with the PCM92. 7. worD clock InPut This connection allows the PCM92 to lock to a master system clock. It is not terminated. For best results we recommend using “T” connectors when setting up a BNC Word Clock network and terminating the end of of this network with a 75 ohm BNC terminator.

  • Page 13: Using The Pcm92

    USING the PcM92 PoWeRING UP the PcM92 1. Plug in the power cord. 2. Press the Power button. 3. The Lexicon logo appears, and remains until the boot process is com- ® plete. Next, the Preset screen appears, showing the currently loaded pre- set.

  • Page 14: Selecting Your Audio Source And Clock Source

    Loading Preset, and the preset name appears. It is no longer blinking. chANGING cAteGoRIeS Presets are grouped into categories in the PCM92. Each category has its own set of presets. When you turn the Select knob while viewing a preset, you only see presets available in the current category.

  • Page 15: System Presets And Machine Presets

    4. Select a preset with the Select knob, and press the Select knob to load it. SySteM PReSetS ANd MAchINe PReSetS The PCM92 features a single powerful processor, which can be used as up to four virtual machines. For example, you could send the left input signal through a mono reverb in one virtual machine and send the right input sig- nal through a mono delay in another virtual machine.

  • Page 16: The Configuration Icon

    Press Select Press Select Note that pressing the Back button or the Select knob have different results depending on what kind of preset is loaded. The following diagram shows what happens when you press the Select knob, Back button, and Machine button in both System View and Machine View.

  • Page 17: Editing A Preset

    Configuration icon, and three of the loaded preset’s parameters appear at the bottom of the Display. 0:Med Hall 0:Med Hall 1:PreDelay :14ms 1:PreDelay :14ms 2:MidRT :1.59s 2:ReverbTime :1.59s 3:RvbOutFreq :4750.0Hz 3:RvbOutFreq :4750.0Hz Press the Machine button repeatedly to cycle through the virtual machines in a System Preset, and eventually back to the System Preset.

  • Page 18: Storing A Preset

    StoRING A PReSet Once you’ve edited a preset, you can store it on the PCM92. 1. From the Preset screen, press the Store button. The Save As screen appears. Select Knob -> Change Position ʻAʼ Knob -> Change Letter Save As: Single Stereo Config 2.
  • Page 19 knob to load it. 8. Press the Machine Button to choose the next Machine Preset (if there is one) and repeat steps 5 through 7. 9. Repeat step 8 for each virtual machine in your System Preset. 10. Press the Machine Button until your System Preset is selected. 11.

  • Page 20: Dsp Configurations

    This lets you route signals from each input through a variety of algorithm combinations. The PCM92 can use up to two physical inputs and two physical outputs at a time; configurations for the physical inputs and outputs are described below.

  • Page 21: Networking

    PCM92, or having a computer on the LAN that is not secured so that someone could use it to reconfigure the PCM92. It is highly recommended...

  • Page 22: Connecting The Computer Directly To The Pcm92

    IP addresses. AUto IP If DHCP fails, the PCM92 selects a number and looks for collisions. If no collisions are found, the PCM92 accepts that number. If collisions are found, the PCM92 randomly selects another number and tries again.

  • Page 23: Network Considerations And Limitations

    NetWoRK tRoUbLeShootING If you are having difficulty getting your PCM92 to show up in your System Architect software, here are some things that you can try to resolve the prob- lem.

  • Page 24: System Menu

    The following steps outline how to use this utility. 1. In the Applications folder, double click the Terminal icon. 2. At the prompt enter ping -c 4 <IP address of your PCM92> and press Enter. The data should appear something like this: PING <IP address of your PCM92>: 56 data bytes...
  • Page 25 (A/D) conversion process that combines the best attributes of digital conversion and analog recording processes to preserve the essence of the analog signal when it is converted to a digital format. Global Mute - Mutes all signals from the PCM92. Set to Muted or Unmuted. AES Setup...

  • Page 26: Machine Config

    Select each virtual machine’s channel here. Choose from 0-15. Bank Dump Lets you copy an entire bank of presets from the PCM92 to another device via MIDI. (For a map of banks and presets, see page 26; to see the current preset’s bank number, press Knob C while viewing the Preset screen.) When Bank Dump is highlighted, turn the corresponding B or C...

  • Page 27: Network Config

    Select INTERNAL to determine the tempo using parameters within the PCM92, or MIDI to set the tempo using MIDI beat clock. Refer to your DAW’s manual to learn how to transmit this value. NetWoRK coNFIG Here you can set the PCM92 Subnet Mask, IP Address, Gateway, and DHCP information.

  • Page 28: Various Parameters

    The foot pedal will change the value after it moves for the first time. FootSWItch ANd Foot PedAL FUNctIoNALIty Your PCM92 has added functionality that lets you change presets using a footswitch and also change various parameters with a foot pedal (also known as a foot controller).

  • Page 29: How To Control Parameters With A Foot Pedal

    5. Turn Knob A to change the selected letter. Press Knob A to toggle between uppercase, lowercase, special characters and numbers. Press Knob B to clear the selected character space. Press Knob C to insert a space. 6. Press the Select knob to save the preset chain with its new name. To add presets to a preset chain: 1.

  • Page 30: Using Midi

    USING MIdI The MIDI Control menu is where all MIDI related control is changed. See page 26 for information about the MIDI Control menu. MIDI in the PCM Device series can be se tup in two basic configurations. Setup #1 – More Devices This setup is designed for the user who will: •...

  • Page 31: Preset Loading

    Bank has indeed changed. hoW to ASSIGN A bASe chANNeL to the PcM92 The base channel identifies a PCM92 unit to a MIDI device. Add 1, 2, 3, or 4 to the unit’s base channel to identify virtual machines within the unit. You can connect up to three PCM92 units to a single MIDI device.

  • Page 32: Continuous Controllers

    Internal coNtINUoUS coNtRoLLeRS All PCM92 soft row parameters can be controlled with single, 7-bit control- lers. Each parameter is controlled with the full controller range, regardless of the parameter range. For example, if the controller is at the midpoint of its range (64), the parameter will also be at the midpoint of its range no matter what the actual number.

  • Page 33: Midi Sysex Implementation

    0: ReQUeSt PReSet dUMP When this command is received by the PCM92, it will respond with a preset dump of the requested preset. If the preset does not exist, the PCM92 will not respond. Only presets from User banks may be requested. Factory banks will not be transmitted.
  • Page 34 2: ReQUeSt PReSet bANK dUMP When this command is received by the PCM92, it will respond with a series of preset dumps for all presets in the bank. Blank presets will be transmitted in a special form. Only presets from User banks may be requested. Factory banks will not be transmitted.

  • Page 35: The Algorithms

    the ALGoRIthMS chAMbeR (SteReo ANd MoNo) Chamber is a complex miniature-space effect resembling an echo chamber at its smaller settings and, at its larger ones, a small performance space with a more rapid build-up of reflection density than a hall. Reverberant tails are randomized.

  • Page 36: Hall (Stereo And Mono)

    (hiss not included). Feedback diffusion allows emulation of azimuth misalignment – a hallmark of the sound. • Early Reflection Modeling Although different in scope from Lexicon Delays can be used to place early reflections in stereo or surround fields. • Modulated Delays Delay times may be modulated by signal level, LFO or random values.

  • Page 37: Random Hall (Stereo And Mono)

    RANdoM hALL (SteReo ANd MoNo) Random Hall is a hall effect with gradual build-up, well suited to complex sounds like orchestral music. Its reverberators change over time in controlled random ways to avoid the buildup of tinny, grainy, metallic, or other color- ations.

  • Page 38: Resonant Chords (Stereo And Mono)

    ReSoNANt choRdS (SteReo ANd MoNo) The Resonant Chord algorithm uses impulsive energy at the inputs to excite six resonant voices (notes). The level, pitch, duration, and high-frequency cutoff of the overtones for each voice are separately controllable. Each voice can be panned independently. The voices resonate to some degree with any input, but the most effective excitation contains all frequencies, like percus- sion.

  • Page 39: Chorus/Flange (Stereo Only)

    (SteReo oNLy) Chorus/Flange is quite similar to other delay algorithms in the PCM92. It has four delay voices per channel, each delay voice having over 9 seconds of delay. The delays may be independently panned and filtered. The difference is in the modulation aspect.

  • Page 41: The Parameters

    Below are all the algorithm parameters you can edit in the PCM92. Note that sometimes parameter names are abbreviated when they appear onscreen (for example, Delay Level Master may appear as DlyLvlMaster), and they may have prefixes indicating what channel they control (for example, Level may appear as RightInLvl, or OutLvl).
  • Page 42 Category (Room) This parameter lets you select a specific category from which a room response may be chosen. Changes here have a direct effect on the Pattern Selector parameter. Chorus Depth (Concert Hall) This parameter controls the amount of randomization of the chorus tap. Higher values are generally preferred in order to minimize reverb coloration.
  • Page 43 The actual feedback level is modified by the Master Echo Feedback param- eter, if present. The master value is a percentage (0-100%) that is applied to the Echo Feedback level. Feedback Diffusion Feedback Diffusion is similar to Input Diffusion, except that it is applied to a delayed signal that is being added back into the input.
  • Page 44 Master Reflection Delay (Reflection Time Master) Controls all reflection delays in the algorithm. Each reflection delay voice has its nominal delay time adjusted by this percentage. MidRT MidRT is the mid frequency reverb time. As such, it is one of the primary controls affecting the length of the reverb tail.
  • Page 45 Resonance Master Controls all voices in the algorithm. Each voice has its nominal resonance adjusted by this percentage. Resonance Tuning Master Affects all voices in the algorithm. Each voice has its nominal resonance adjusted by this value. In the musical world, the tuning reference is A=440. This means that the note A (above middle C) is equivalent to 440 Hz.
  • Page 46 The damping parameter is closely tied to the RTHC parameter. It controls the strength of the hi frequency absorption and has three values: Light, Normal, and Heavy. The normal value gives filter response identical to previ- ous Lexicon ® reverbs. The other values should be self-descriptive.
  • Page 47 Selects the type of signal to be created by the signal generator. The types of signal are: • Sine Wave — When this is selected the signal frequency parameter is used to control frequency. • Sweep Up — 20Hz to 20KHz sweep. When this is selected the signal rate parameter is used to control rate.
  • Page 48 Type This parameter lets you configure a filter as any of 4 basic types, in order: • Lowpass • Highpass • Bandpass • Notch (Band-reject) The filter provides a subset of filter types available to a Biquad filter. Wet Dry Mix Wet Dry Mix is the proportion of wet (processed) signal to dry (unpro- cessed) signal.

  • Page 49: Pcm92 Menu Navigation Maps

    PcM92 MeNU NAvIGAtIoN MAP - SySteM vIeW ANd MAchINe vIeW...
  • Page 50 PcM92 MeNU NAvIGAtIoN MAP - SteReo hALL ALGoRIthMS...
  • Page 51 PcM92 MeNU NAvIGAtIoN MAP - SteReo chAMbeR ANd RooM ALGoRIthMS...
  • Page 52 PcM92 MeNU NAvIGAtIoN MAP - SteReo deLAy ALGoRIthMS...
  • Page 53 PcM92 MeNU NAvIGAtIoN MAP - SteReo eFFectS ALGoRIthMS...
  • Page 54 PcM92 MeNU NAvIGAtIoN MAP - MoNo hALL ALGoRIthMS...
  • Page 55 PcM92 MeNU NAvIGAtIoN MAP - MoNo chAMbeR ANd RooM ALGoRIthMS...
  • Page 56 PcM92 MeNU NAvIGAtIoN MAP - MoNo deLAy ALGoRIthMS...
  • Page 57 PcM92 MeNU NAvIGAtIoN MAP - MoNo eFFectS ALGoRIthMS...

  • Page 59: Pcm92 Specifications

    PcM92 SPecIFIcAtIoNS ANALoG INPUtS Connectors Impedance Level (for 0 dbFS) Freq Response @96K A/D Conversion A/D Dyn Range Crosstalk @ 1Khz ANALoG oUtPUt Connectors Impedance Level (at 0 dBFS) Freq Response @96K D/A Conversion D/A Dyn Range Crosstalk @ 1kHz...
  • Page 60 cLocK JItteR Intrinsic Jitter Gain coNtRoL INteRFAceS MIDI ** **supports program change ALGoRIthMS Chamber Random Delay Random Hall Plate Dual Delay Resonant Chords Chorus/Flange Concert Hall Room Hall Signal Generator Storage Media MAchINe coNFIGURAtIoNS 44.1K/88.2K Two Mono (Super-mono capable) Single Stereo (Super-stereo capable) Two Cascaded Mono pairs Cascaded Stereo Two Mono cascaded into single Stereo...
  • Page 61 dIMeNSIoNS Rack Units Size Weight ReGULAtoRy APPRovALS eNvIRoNMeNt Operating Storage Humidity 19.0” W x 1.75” H x 12.5” D (483mm x 44.5mm x 317.5mm) 8.65 lbs Class A EN55103-1, EN55103-2 UL1419 C22.2 EN60065 15° to 35° C –30 to 70 °C 75% relative humidity max...

  • Page 62: Midi Implementation Chart

    Mode 1: OMNI ON, POLY Mode 3: OMNI OFF, POLY MIdI IMPLeMeNtAtIoN chARt Function Transmitted Basic Default Channel Changed Mode Default Messages Altered Note Number True Voice Velocity Note ON Note OFF After Keys Touch Channel Pitch Bend Control Change Program Change Bank...
  • Page 64 Harman Music Group 8760 South Sandy Parkway | Sandy, Utah 84070 U.S.A. Phone: (801)-568-7660 | Fax: (801)-568-7662 PCM92 Copyright 2010 Lexicon Professional Printed in the USA Questions or comments? Visit us online at www.lexiconpro.com ® 18-0688-B...

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