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Lexicon PCM96 SURROUND Owner's Manual

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Summary of Contents for Lexicon PCM96 SURROUND

  • Page 1 Surround Professional Audio Equipment...
  • Page 2 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 previously manufactured.

  • Page 3: Table Of Contents

    Single Six In Six Out ................16 NETWORKING ����������������������������������������������������������������������������������������������17 Overview of TCP/IP Basics ..............17 Connecting the Computer Directly to the PCM96 Surround ....18 Setup of a Simple Isolated Ethernet Network Using DHCP ....18 Virtual Private Networks (VPN) ............19 Network Considerations and Limitations ..........19 Network Troubleshooting ...............19...
  • Page 4 Various Parameters .................24 USING MIDI �������������������������������������������������������������������������������������������������24 Setup Definitions ...................25 Preset Loading ..................25 How to Assign a Base Channel to the PCM96 Surround .......25 Channel Map (how channels map to machines) ........26 Bank Dump ...................26 Reverse Bank Dump (Bank “Load”) ............26 Continuous Controllers ................26...

  • Page 5: Introduction

    Reverb/Multi Effects Processor! Building on the success of the PCM96, the new PCM96 Surround offers more presets, more configuration options, and more inputs and outputs. The PCM96 Surround gives you industry standard reverbs and effects, with tremendous flexibility. The PCM96 Surround is available with either 6 channels of XLR/AES inputs and outputs, or 2 DB25 6-channel analog I/O and 1 DB25 6-chan- nel digital I/O.

  • Page 6: The Front Panel

    1. Gain LEDs Each row of Gain LEDs indicates input signal strength of each of the PCM96 Surround’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 7 9. Power Button Press to turn the PCM96 Surround on or off. 10. Display This high resolution, high contrast, and high viewing angle OLED (Organic LED) display shows menu and box configuration and status information. 11. 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.

  • Page 8: The Rear Panel - Digital Model

    AES/EBU format digital connectors conform to AES professional standards. 5. WORD CLOCK INPUT This connection allows the PCM96 Surround to lock to a master system clock. It is not terminated. For best results we recommend using “T” con- nectors when setting up a BNC Word Clock network and terminating the...

  • Page 9: The Rear Panel - Digital And Analog Model

    These D25 connectors each carry six analog inputs and outputs. 6. WORD CLOCK INPUT This connection allows the PCM96 Surround to lock to a master system clock. It is not terminated. For best results we recommend using “T” con- nectors when setting up a BNC Word Clock network and terminating the...

  • Page 10: Using The Pcm96 Surround

    USING THE PCM96 SURROUND POWERING UP THE PCM96 SURROUND 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 11: 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 PCM96 Surround. 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 12: System Presets And Machine Presets

    System Presets and Machine Presets also have User and Card categories, where you can access user-edited presets. Presets in the User category are stored on the PCM96 Surround, and presets in the Card category are stored on a Compact Flash card.

  • Page 13: The Configuration Icon

    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. Preset Category Preset Category Selection View Selection View (System) (Machine) Press...

  • Page 14: Editing A Preset

    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 Configuration Icon (Machine Preset) Press the Machine button repeatedly to cycle through the virtual machines in a System Preset, and eventually back to the System Preset. EDITING A PRESET To edit a System Preset, you must edit the virtual machines within it.

  • Page 15: Storing A Preset

    STORING A PRESET Once you’ve edited a preset, you can store it on the PCM96 Surround (in the User category) or on a Compact Flash card (in the Card category). Note: When you first insert a Compact Flash card, you may receive the message “Card Needs Initializing.”...

  • Page 16: Initializing/Formatting A Compact Flash Card

    INITIALIZING/FORMATTING A COMPACT FLASH CARD To initialize or format a Compact Flash card: 1. Press the Back button until the Preset screen appears. 2. Press the Machine button until System View is displayed. 3. Press the Select knob to enter the System Menu. 4.

  • Page 17: Dsp Configurations

    When using the PCM96 Surround in one of its surround modes, it is critical to know how audio is routed to the algorithm. This applies both to the way IO connects with the outside world and the way the signals are distributed within the algorithm.

  • Page 18: Single Stereo (Mono In)

    When dealing with true surround source material, the choice of configu- ration is simple--choose the 4-in or 5-in version. The algorithms are all designed to treat the inputs uniquely. If the algorithm is a reverberator or room, then each input will propagate into the space from the direction of its virtual source.

  • Page 19: Cascade Stereo

    CASCADE STEREO The left and right signals are processed together in one virtual machine, and the resulting signal is sent to a second virtual machine, where they are again processed together. DUAL MONO The left signal travels through one virtual machine, and the right signal travels through a separate second virtual machine.

  • Page 20: Single Four In Four Out

    SINGLE FOUR IN FOUR OUT Four signals are processed by one virtual machine, and out- put as four signals. SINGLE TWO IN FIVE OUT Two signals are processed by one virtual machine, and out- put as five signals. SINGLE FIVE IN FIVE OUT Five signals are processed by one virtual machine, and out- put as five signals.

  • Page 21: Networking

    Ethernet switch with static IP addresses or with DHCP. This section concludes with some further networking considerations and troubleshooting tips that will help with connecting to your PCM96 Surround via Ethernet. If your application is more than these simple examples we recommend that you involve a trained Ethernet network administrator in the design and commis- sioning of your system.

  • Page 22: Connecting The Computer Directly To The Pcm96 Surround

    IP addresses. AUTO IP If DHCP fails, the PCM96 Surround selects a number and looks for colli- sions. If no collisions are found, the PCM96 Surround accepts that number. If collisions are found, the PCM96 Surround randomly selects another num- ber and tries again.

  • Page 23: Virtual Private Networks (Vpn)

    NETWORK TROUBLESHOOTING If you are having difficulty getting your PCM96 Surround to show up in the control software, here are some things that you can try to resolve the prob- lem.
  • Page 24 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 PCM96 Surround> and press Enter. The data should appear something like this: PING <IP address of your PCM96 Surround>: 56 data bytes...

  • Page 25: System Menu

    SYSTEM MENU The System Menu lets you adjust several settings in the PCM96 Surround. To access the System Menu, press the Select knob while a System Preset is loaded. The System Menu contains sub-menus and options. Sub-menus contain options and/or more sub-menus. To enter a sub-menu, highlight it with the Select knob and press the Select knob.

  • Page 26: Machine Config

    (and therefore at least one audio sample) was corrupted. MACHINE CONFIG The Machine Config menu lets you configure the PCM96 Surround proces- sor as one, two, three, or four virtual machines in a new preset. Note that once you’ve selected a configuration, you must then populate each virtual machine with a Machine Preset (see “System Presets and Machine Presets”...

  • Page 27: Tempo Control

    Select the connected MIDI device’s base channel here. Choose from 0-15. Bank Dump Lets you copy an entire bank of presets from the PCM96 Surround to another device via MIDI. (For a map of banks and presets, see “Bank/ Preset Map” on page 27; to see the current preset’s bank number, press Knob C while viewing the Preset screen.) When Bank Dump is highlight-...

  • Page 28: Machine Menu

    MACHINE MENU The Machine menu lets you adjust settings for a single virtual machine. To access the Machine menu, press the Select knob while a Machine Preset is loaded. The sub-menus vary depending on what algorithm is active. SOFT ROW SETUP This sub-menu lets you assign parameters to a Machine Preset’s soft row.

  • Page 29: Setup Definitions

    Preset Change unless the Bank has indeed changed. HOW TO ASSIGN A BASE CHANNEL TO THE PCM96 SURROUND The base channel identifies a PCM96 Surround unit to a MIDI device. Add 1, 2, 3, or 4 to the unit’s base channel to identify virtual machines within...

  • Page 30: Channel Map (How Channels Map To Machines)

    You can connect up to three PCM96 Surround units to a single MIDI device. To assign a base channel to the PCM96 Surround: Press the Back button until the Preset screen appears. Press the Machine button until System View is displayed.

  • Page 31: Soft Row Parameter/Midi Cc Map

    MIDI control might be somewhat coarse. This is most noticeable with large delays. When MIDI is enabled, the PCM96 Surround automatically sends MIDI messages through the MIDI Out port for soft row parameters and preset loads whenever those actions are performed via the front panel controls.

  • Page 32: Midi Sysex Implementation

    0xF7 COMMAND 1: PRESET DUMP This sysex is transmitted by a MIDI sequencer or by PCM96 Surround. The PCM96 Surround may transmit this dump in response to a request or by means of a front-panel action. The PCM96 Surround receiving this dump will store the encapsulated preset data in the designated location.
  • Page 33 COMMAND 2: REQUEST PRESET BANK DUMP When this command is received by the PCM96 Surround, 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 request- ed.

  • Page 34: The Algorithms

    THE ALGORITHMS CHAMBER (SURROUND, 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 35: Hall (Surround, 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 ® Ambience algorithms, Random Delays can be used to place early reflections in stereo or surround fields.

  • Page 36: Random Hall (Surround, Stereo And Mono)

    RANDOM HALL (SURROUND, 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 37: Resonant Chords (Surround, Stereo And Mono)

    RESONANT CHORDS (SURROUND, 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.

  • Page 38: Chorus/Flange (Surround, Stereo And Mono)

    In many cases this is sufficient. A reverb tail can be added to the room by means of an included small reverb algorithm. Lexicon reverbs are renowned for smooth tails and controlled frequency response. However, in many cases the earlier components are more impor- tant.

  • Page 39: Pitch Shift - Standard Vso

    work very differently, based on machine type. PITCH SHIFT - STANDARD VSO This simple pitch shifter provides high-quality shifting by semitones and cents. In stereo or surround, this is the best choice for full music mixes or for any multichannel submixes. Shifting on all channels is linked, so that the resultant soundstage remains stable.

  • Page 40: The Parameters

    THE PARAMETERS The PCM96 contains hundreds of presets, covering just about every possible need. But you can refine and customize any preset by adjusting its param- eters. Parameters are the building blocks within each preset that determine how it sounds and behaves. Each algorithm contains a set of parameters, and a variety of those param- eters (sometimes from more than one algorithm) are combined to create a preset.
  • Page 41 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. Pitch effects may result and are closely tied to the Reverb Chorus Rate parameter. Chorus Rate (Concert Hall) This parameter controls the rate at which the reverb chorus is run.
  • Page 42 Feedback This controls the amount of echo output that is fed back to the input of the echo buffer. 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.
  • Page 43 Lowest Shift Freq This tells the shifter the lowest frequency that it may be required to shift. As a general rule of thumb, this should be set in the higher part of the range in order to preserve detail in the shifted material. It should be lowered if arti- facts appear in the low frequencies.
  • Page 44 Reflection Delay (Delay Time) A reflection delay is a delay tap taken from one of the inputs and sent to one of the outputs. It is often called a delay voice. Depending on the algorithm, there may be one or more reflection delays for each input channel. Some of the delays may mix their outputs to the same channel (left to left) and some may go cross-channel (left to right).
  • Page 45 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 46 Tip: Shape will not have this effect if spread is at its minimum value. But even then, it can make a difference. In this case, it affects reverb tim- bre and density. Higher values of shape will be both darker and denser, although the effect is subtle.
  • Page 47 Tail Width This parameter is present in all stereo reverbs and rooms. The reverb tail (all components of the reverb except for early reflections, etc.) is passed through a simple 2x2 matrix. This provides an encoding of the tail that dramatically changes its spatial characteristics.

  • Page 48: Analog Db25 Cable Diagrams

    ANALOG DB25 CABLE DIAGRAMS (INPUT/OUTPUT) DB25 Pin Number Cable/Channel Number Cold Ground...

  • Page 49: Digital Db25 Cable Diagram

    DIGITAL DB25 CABLE DIAGRAM DB25 Pin PCM96 Surround Channel Not Used Not Used Digital Out 5/6- Digital Out 3/4+ Digital Out 3/4 Ground Digital Out 1/2- Not Used Not Used Digital In 5/6- Digital In 3/4+ Digital In 3/4 Ground...

  • Page 50: Specifications

    SPECIFICATIONS ANALOG INPUTS Connectors One 25-pin Dsub female connector Impedance 20K Ohm, balanced Level (for 0dBFS) +4dBu mode: +20dBu –10dBV mode: 8.2dBu Freq Response @96K 20Hz - 22kHz, ±.15dB 20Hz - 46kHz ±.5dB A/D Conversion 24 bits A/D Dyn Range 112dB unweighted, 115dB A-weighted <0.002% 20 →...
  • Page 51 CLOCK JITTER Intrinsic Exceeds AES3 Amendment 1 Jitter Gain Exceeds AES3 Amendment 1 CONTROL INTERFACES MIDI ** In/Out/Thru **supports program change ALGORITHMS Chamber Surround, Stereo and Mono Random Delay Surround, Stereo and Mono Random Hall Surround, Stereo and Mono Plate Surround, Stereo and Mono Dual Delay Surround, Stereo and Mono...
  • Page 52 DIMENSIONS/WEIGHT Rack Units Size 19.0” W x 1.75” H x 16” D (483mm x 44.5mm x 317.5mm) Weight 14.25 lbs REGULATORY APPROVALS Class A EN55103-1, EN55103-2 UL1419 C22.2 EN60065 ENVIRONMENT Operating 15° to 35° C Storage –30 to 70 °C Humidity 75% relative humidity max RECOMMENDED CABLES...

  • Page 53: Midi Implementation Chart

    MIDI IMPLEMENTATION CHART Function Transmitted Recognized Remarks Basic Default 1-16 Channel Changed Mode Default Messages Altered Note Number True Voice Velocity Note ON Note OFF After Keys Touch Channel Pitch Bend Control OX 32 OX 32 Bank Change Change OX 48-55 OX 48-55 Program OX 1-127...
  • Page 54 10653 South River Front Parkway, Suite 300 Questions or comments? South Jordan, UT 84095, USA Email us at: customer@lexiconpro.com Phone: (801) 566-8800 or visit us online at www.lexiconpro.com PCM96 Surround Part# 5047786-B Copyright 2016 Lexicon Professional ®...

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