AMS Neve Libra Live II Series User manual

© 2003 AMS Neve plc own the copyright of all
information and drawings contained in this manual which
are not to be copied or reproduced by any means or
disclosed in part or whole to any third party without
written permission.
As part of our policy of continual product improvement,
we reserve the right to alter specifications without notice
but with due regard to all current legislation.
Disclaimer: The information in this manual has been
carefully checked and is believed to be accurate at the
time of publication. However, no responsibilty is taken by
us for inaccuracies, errors or omissions nor any liability
assumed for any loss or damage resulting either directly or
indirectly from use of the information contained within it.
AMS NEVE INC., NEW YORK
TEL: [phone] • FAX: [phone]
AMS NEVE INC., HOLLYWOOD
TEL: [phone] • FAX: [phone]
AMS NEVE PLC • BILLINGTON ROAD • BURNLEY
LANCS BB11 5UB • ENGLAND
TELEPHONE: [phone] • FAX: [phone]
HEAD OFFICE
TELEPHONE: [phone] • FAX: [phone]
LONDON OFFICE
NORTH AMERICAN OFFICES
e-mail: [email protected]
http://www.ams-neve.com
User Manual
527-238
Issue 4
Libra Live

Issue 4 Libra Live Series II User Manual
1
Contents
Contents ..........................................................................................................................................1
Glossary of Terms ..........................................................................................................................6
Introduction...................................................................................................................................14
Information in this Manual .......................................................................................................14
Structure of this Manual ..........................................................................................................14
Using Data From Earlier Software Versions ...........................................................................14
Libra Live Console Surface .........................................................................................................15
Control Types ..........................................................................................................................16
Fader Strips.................................................................................................................................17
Fader Strip Logicators .............................................................................................................18
Fader Strip Keys......................................................................................................................19
Assignable Switches................................................................................................................20
Access Key..............................................................................................................................21
The Fader ................................................................................................................................21
AFU (Assignable Facilities Unit) .................................................................................................23
Main AFU Section....................................................................................................................23
I/O Panel..................................................................................................................................25
PAN/BAL Panel .......................................................................................................................29
FILTER Panel ..........................................................................................................................30
EQUALISER Panel..................................................................................................................30
DYNAMICS Panel ...................................................................................................................32
SIDECHAIN Panel...................................................................................................................33
AFU Parameter Display...........................................................................................................34
AFU Fader Strip.......................................................................................................................34
Master Control Section................................................................................................................37
UTILITY KEYS Panel ..............................................................................................................38
TONE Panel ............................................................................................................................42
MONITORING Panel...............................................................................................................44
SELECT Panel ........................................................................................................................45
TALKBACK Panel....................................................................................................................47
CONTROL ROOM Panel ........................................................................................................48
HEADPHONES and STUDIO LS Panel..................................................................................49
FADERS GLOBAL CONTROL Panel......................................................................................50
MASTER AUTOMATION Panel ..............................................................................................51

Issue 4 Libra Live Series II User Manual
2
Keypad and Transport Controls ..............................................................................................52
Machine Control ......................................................................................................................53
ROUTING and METERING Section ...........................................................................................54
Routing Screen Displays .........................................................................................................55
Routing Panel Switches ..........................................................................................................56
Routing ....................................................................................................................................56
Routing Panel Analogue Meters..............................................................................................58
Routing Panel Bargraph Meters ..............................................................................................59
MASTER FADER Section...........................................................................................................60
Output Meters..........................................................................................................................60
Strip Keys ................................................................................................................................60
Fader .......................................................................................................................................60
Master Fader Assignment Keys ..............................................................................................61
ENCORE SCREEN and KEYBOARD.........................................................................................62
Dockable Keyboard .................................................................................................................62
Encore TFT Screen .................................................................................................................62
Upstand Metering........................................................................................................................63
Meter Bridge ............................................................................................................................63
Routing Screen Bargraph Meters............................................................................................67
Using Libra Live............................................................................................................................68
Starting Up Libra Live..................................................................................................................68
System Startup ........................................................................................................................68
Turning Off and Re-Starting Libra Live....................................................................................68
Restarting Libra Live................................................................................................................70
Using Libra Live for the first time ................................................................................................71
Broadcast Home Page ............................................................................................................71
Routing a Signal through the Console.....................................................................................73
Using Signal Processing .........................................................................................................74
Using Layers............................................................................................................................75
Mix Minus ................................................................................................................................75
Using Encore.................................................................................................................................79
Operational Suite.....................................................................................................................79
EQ/DYN ......................................................................................................................................79
Path Editor ..................................................................................................................................80
On-Line and Off-Line Operation ..............................................................................................81
Preferences.................................................................................................................................85
Automation Preferences..........................................................................................................85
Collect Touch Preferences ......................................................................................................86
Brightness Control Preferences ..............................................................................................87

Issue 4 Libra Live Series II User Manual
3
Pan & Operating Level Preferences........................................................................................88
Solo Settings & Relay Control Preferences ............................................................................90
Sync Select Preferences .........................................................................................................91
Monitoring Preferences ...........................................................................................................93
Tone & Talkback Preferences .................................................................................................94
MCS Preferences ....................................................................................................................95
Control Sensitivity Preferences ...............................................................................................95
Extended Preferences.............................................................................................................96
Assignable Buttons Preferences .............................................................................................99
Path Names ..............................................................................................................................102
More and Exit ............................................................................................................................102
Desk Editor................................................................................................................................103
Creating a New Desk Setup ..................................................................................................104
Configuration Page................................................................................................................105
Channels Page ......................................................................................................................108
Monitor Page .........................................................................................................................109
Groups Page .........................................................................................................................112
Desk Designer .......................................................................................................................114
Stems, Solo Inhibit, Inhibit Automation..................................................................................116
Inhibit Allocation, Allocation Priority ......................................................................................117
Saving the Desk Setup..........................................................................................................118
I/O Patch ...................................................................................................................................119
I/O Config ..................................................................................................................................122
Creating an I/O Configuration................................................................................................123
Names Configuration.............................................................................................................128
Port Grouping (V2.8 software)...............................................................................................128
Sample Rate Configuration ...................................................................................................130
GPI (General Purpose Interface) Configuration ....................................................................132
Configuring GPI Relays.........................................................................................................133
Configuring GPI Opto-Isolators .............................................................................................136
Audio Follow Tally (Version 2.8 software).............................................................................141
Quick Prefs ............................................................................................................................143
Housekeeping ...........................................................................................................................144
Filing..........................................................................................................................................144
Desk Filing.............................................................................................................................145
System Page .........................................................................................................................147
Backup \ Restore.......................................................................................................................150
Backing up Data to Archives .................................................................................................153
Restoring from Archives ........................................................................................................153
Automotion ................................................................................................................................155

Issue 4 Libra Live Series II User Manual
4
Converting from Version 2 to Version 2.5 .............................................................................155
Convert Desk Setups and Mixes from Version 2 to 2.5 ........................................................159
Import and Export of Flying Faders Automation data............................................................161
Import and Export of the Studio Configuration ......................................................................162
Converting from Logic to Encore...........................................................................................163
Routing Assistant ......................................................................................................................164
Defaults Manager......................................................................................................................167
Setting Values in Defaults Manager ......................................................................................167
Resetting Console controls with Reset Wizard .....................................................................168
Defaults Manager File Saving ...............................................................................................169
Encore (Dynamic Automation) ..............................................................................................169
Machine Control ....................................................................................................................169
Transport Control .......................................................................................................................170
Transport Menus .......................................................................................................................171
Group Setup ..........................................................................................................................171
MCS Preferences ..................................................................................................................178
MCS Ports .............................................................................................................................180
Standard Transport Functions...............................................................................................181
Snapshot System........................................................................................................................187
Enabling Snapshots...............................................................................................................187
Snapshot Scope ....................................................................................................................187
Creating a Snapshot..............................................................................................................189
Recalling a Snapshot.............................................................................................................189
Managing the Snapshot List..................................................................................................190
Dynamic Automation..................................................................................................................191
Overview ...................................................................................................................................192
Mix/Pass ................................................................................................................................192
Automation Scope and Automation Modes ..............................................................................194
Automation Controls..............................................................................................................194
Automation Scope .................................................................................................................195
Automation Modes.................................................................................................................196
Selecting Automation Modes.................................................................................................196
Automation Filing ......................................................................................................................198
Recording Automation...............................................................................................................201
Making further Mix/Passes ....................................................................................................201
Using TO END.......................................................................................................................201
Offline Editing............................................................................................................................202
The Events Lists ....................................................................................................................202

Issue 4 Libra Live Series II User Manual
5
Automation Menu Items ........................................................................................................203
Set Offset...............................................................................................................................210
Show Mix Statistics................................................................................................................210
Show Mix/Pass Tree..............................................................................................................211
Surround Sound .........................................................................................................................216
Signal Flow and Surround Paths ..............................................................................................217
Stems ....................................................................................................................................217
Films ......................................................................................................................................217
Film Listens ...........................................................................................................................217
Panning .................................................................................................................................217
Configuring Stems .................................................................................................................218
Stem Porting and Metering....................................................................................................219
Surround Monitoring and Routing Panel ...............................................................................219
Monitoring Stems...................................................................................................................221
Surround Routing ..................................................................................................................222
Cut and Solo..........................................................................................................................223
Monitor Inserts.......................................................................................................................223
Calibrated monitoring levels ..................................................................................................223
External surround sound inputs.............................................................................................224
Joystick Module.........................................................................................................................225
PanPos Display .....................................................................................................................225
Using the Joystick Module.....................................................................................................226
Joystick Automation...............................................................................................................226
Maintenance ................................................................................................................................228
Flash RAM System ...................................................................................................................228
Re-Boot Options for Flash RAM............................................................................................229
User Administration...................................................................................................................232
Ghost.........................................................................................................................................237
Recovery Procedure..............................................................................................................237
Maintenance Procedure ........................................................................................................238
Desk Explorer............................................................................................................................239

Issue 4 Libra Live Series II User Manual
6Glossary
Glossary of Terms
Access key
The Access key is the located below the ON/CUT and AFL key on the fader strips, engraved with
a triangle or the fader number. It is used to identify signal paths for various actions such as
routing.
AFU
AFU is an abbreviation of Assignable Facilities Unit. This is the “channel strip” panel that is called
to a path by pressing the fader’s access key. It has the normal channel strip controls such as EQ
and dynamics.
Allocation
Libra Live uses a pool of processing that can be allocated to input and output path processing
according to a session’s needs. The processing is “allocated” to the different functions (signal
paths, EQ etc) using an Encore program called Desk Editor. The allocation is stored as a “desk
configuration” also known as a “mix setup” which can be recalled, edited or copied as necessary.
Allocation mutes the console while the signal processing for signal paths and processing is built.
In the early days of digital consoles digital processing was expensive and it was necessary to be
careful how the processing resource was used. These days consoles are usually supplied with
sufficient processing for the full complement of EQ and dynamics to be available in every
channel.
Alpha Display
The term alpha or alpha display refers to the digital alphanumeric displays used on the console
surface.
For instance, the Assignable and Pan Logicators on the fader strips each have an associated
eight character alpha display.
Assignment
After signal paths have been created, they can then be “assigned” to physical faders using the
Desk Designer page in Desk Editor. Paths can also be assigned and re-assigned using the setup
mode on the control surface. Signal paths can exist and pass audio without being assigned to a
physical fader. Changing assignments does not affect the audio and can be done live.
Automation
Libra Live has two automation systems: Snapshot automation stores and recalls control positions
under manual control; Dynamic automation records and replays control movements against
timecode. The default automation for Libra Live is Snapshots, which is switched off when
Dynamic automation is switched on.
Automation Mode (Dynamic Automation)
This refers to the states of controls in dynamic automation when recording and re-playing control
moves against timecode. The basic Automation Modes are Record, Play, Touch record (when
REC and PLAY are on together - sometimes known as update) and Isolate (when the automation
for individual controls is switched off).
Automation modes are only relevant when Dynamic Automation is switched on.

Issue 4 Libra Live Series II User Manual
7Glossary
Banks
See Layers
Boot
The term boot or bootup refers to the startup process of digital systems. Hence, reboot means to
completely restart the system.
Channels
A channel path is an input path that takes an input from a user defined port and routes it on to
other paths such as groups, auxs and main outputs via the usual channel processing (EQ fader
etc). A channel path isn’t permanently tied to any one fader strip and fader strips are not
exclusively for input channels.
Desk Setup
The Desk Setup (also called the Mix Setup or configuration) is a file containing the basic
configuration of the desk. Libra Live uses assignable DSP (digital signal processing) to provide
signal paths and signal processing. The amount of DSP available varies from one Libra Live to
another and the way in which it is used will change according to individual session requirements.
A Desk Setup keeps a picture of how the DSP is used. Libra Live stores different desk set-ups in
a structured filing system.
•The main information that a Desk Setup defines is:
•The number of each type of signal path
(e.g. the number of Channels)
•The signal processing allocated to each signal path
(e.g. the number EQ bands in Channel 6)
•The initial control settings for each signal processor
(e.g. the Q on EQ band 2 for Channel 6)
•The placement of paths on the console surface
(e.g. the fader strip that can be used to control Channel 6)
•The patching and routing configuration
(e.g. the mic/line source for Channel 6, the other paths that Channel 6 is routed to, the input
and output used for the Insert on Channel 6, etc.)
•The path names as displayed in the alpha displays
Other configuration files (e.g. a list of snapshots) are linked to the Desk Setup configuration and
are normally loaded onto the console at the same time as the Desk setup, but can be loaded
independently. Desk setups can easily be transferred between consoles via removable media or
networking. There are built in mechanisms for handling different I/O configurations and DSP
capacity between consoles.
DRC
DRC is an abbreviation of Dynamic Range Controller. A DRC is a combined expander and
compressor that uses less processing (DSP) than a separate expander and compressor would.
The reduced DSP requirement is achieved by having a common attack time and an inversely
linked ratio (e.g. if the compression ratio is 2:1, the expansion will be 1:2). The thresholds and
release times are set separately.
The DRC is an ideal tool for broadcasting environments as it is designed to quickly control the
dynamic range.

Issue 4 Libra Live Series II User Manual
8Glossary
DSP
DSP is an abbreviation of Digital Signal Processing. SSP, ESP or XSP cards in the Libra Live
racks provide DSP, and the quantity fitted is independent of the number of faders on the control
surface. Each signal path (Channel, track Monitor, etc.) and each signal processor (EQ,
compressor, filter, etc.) requires a certain amount of DSP. DSP is allocated in advance to paths
and processors so that there is no conflict over DSP resources.
Events (Dynamic Automation)
Events are changes to control settings that are recorded against timecode by the automation
system. They are recorded in timecode order to make up the Event List. When a Mix/Pass is
played back, it is the events that are used to automate the controls
Electronic Scribble Strip
The electronic scribble strips are the alpha displays just above the Access keys on the fader
strips that show the name of the path currently assigned to the fader. They also show the fader
level when the fader is touched.
Encore
Encore is the name of the dynamic automation system used by all new AMS Neve consoles. The
term is also used for the complete configuration and automation software suite for the digital
consoles and for the PC hardware that the software runs on.
The Encore suite may also be run “offline” that is on a PC disconnected from the console. Offline
Encore can be used to create or edit desk setups, set-up the console routing, name channel
strips etc before the engineer has access to the console.
ESP, TSP, SSP and XSP
These acronyms refer to the DSP cards used by Libra Live and other AMS Neve digital consoles.
EXTs
EXTs are external inputs that go directly to the monitor selector. The input ports can be selected
using Encore’s I/O configuration utility, or by calling the EXT path to the AFU.
Fader Strip
This term is used instead of channel strip to emphasise the difference between the hardware and
the channel path, which is an input path that can be moved to different fader strips on the control
surface. Any type of signal path may be on a fader strip, not just input channels.
Films
For historical reasons, the surround sound monitoring path is called a film. The film path can be
anything from mono to 8 speakers wide and is usually defined by the number of speakers in the
control room. The film path is defined independently of the stems (surround outputs) and each
stem is mapped individually to the film when selected for monitoring, allowing stems of different
widths to the films. For example an LCRS output can be monitored on a 5.1 film monitoring
system and vice versa.
Function Key
The Function Keys are the row of keys at the top of the Encore keyboard that are marked F1 to
F12. Some of them can be used as shortcuts to Encore Dynamic Automation functions and F1 is
used to access the on-line help.

Issue 4 Libra Live Series II User Manual
9Glossary
Glide (Dynamic Automation)
This is when a continuously variable control (fader, Logicator controlling frequency, etc.) moves or
is moved smoothly to match back to the Play Pass.
GPI
GPI is the acronym for General Purpose Interface. The GPI is the relay and opto-isolator system,
which can be configured for a variety of functions, including advanced features such as lazy
talkback, remote Snapshot control and Mix Minus Talkback switching.
I/O System
Libra Live’s I/O system is partially independent of the console and processing system. It consists
of different types of racks for different format types (analogue and digital) that are connected to
the DSP core via MADI links. The quantity of I/O that is available on a Libra Live is independent of
the amount of processing or the number of channels that are available.
ISS (Dynamic Automation)
ISS is an acronym for Initial SnapShot. An ISS is the starting point snapshot of the dynamic
automation system’s Mix/Pass Tree. It is not connected with Libra Live’s Snapshot Automation
system
Key
A key input is an external input into the dynamics processor. Libra Live can use other console
paths to provide key inputs into any dynamics processor.
Label List (Dynamic Automation)
A Label is a captured (or grabbed) Timecode value that can be named and relates to a point in
the mix that the engineer wants to refer to frequently. The Label List shows the Labels in
Timecode order.
Layers and banks
Layers and Banks have two purposes: They allow a console to control more inputs than there are
physical faders and they allow the engineer to arrange the inputs on the control surface in an
ergonomic way for the session or part of the session he or she is working on.
Libra Live has four layers referred to as A, B, SUB (or MON) A and SUB (or MON) B. These
layers can be visualised as 4 different signal paths stacked up under each fader strip. The signal
path from any one of the four layers can be under control of the fader strip at any one time, and
the active layer and signal path are said to be "on the surface". Originally each layer had a
dedicated purpose, e.g. for channel inputs or for monitor returns (hence the MON name) but Libra
Live now allows the flexibility of any path type, input or output, on any layer. Switching the fader
strip between layers is instant and inaudible.
Banks will be introduced in Version 2.8 software or later. Using banks can be visualised as sliding
the control surface sideways along a much larger virtual console. For example, a 24 fader
console surface could have faders 1-24 on Bank A and faders 25-48 on Bank B. Each fader (1-
48) has 4 layers. Selecting Bank B is the equivalent of sliding the console 24 faders to the right.
Banks and Layers are part of the advanced operation of the Libra Live and give the console
enormous flexibility. Care must be taken in their use not to “lose” an input fader and it is quite
common in critical applications to restrict the console to just one bank and one or two layers.
The Desk Designer function in Desk Edit is used to assign signal paths to the layers and banks.
Banks are referred to in Encore V2.7 but do not become available in Libra Live software until V2.8
software.

Issue 4 Libra Live Series II User Manual
10 Glossary
Listen Busses LS1 and LS2
Listen busses are provided for AFL and PFL monitoring purposes. These busses are technically
“paths” within the console and can be called to the AFU like any other signal path. They can be
routed to output ports (this is essential if they are to be metered and monitored correctly), but they
cannot have other processing such as EQ and dynamics assigned to them.
Login
This term describes the action of providing user identification so that a computer will allow access
to some or all of its functionality. This is for both convenience and security, so that users will have
access to appropriate functions and data without being able to access data or systems that do not
belong to them. For instance, when you login to Encore as a normal user, you will only see
Encore automation data that is saved under your name and you will not have access to any
administration functions.
MADI
MADI is the acronym for Multichannel Audio Digital Interface. MADI is an industry standard which
provides 56 channels of digital audio data on one cable. Interfacing with a digital 48-track
recorder, for instance, requires just two cables - one for the inputs and one for the outputs. MADI
also allows for long cable runs without degrading audio quality, with cable runs up to 2km long
when using fibre optic cable.
MCS
MCS is an acronym for Machine Control System. Libra Live is provided with an MCS that can be
used for direct 9-pin serial control of up to eight machines.
MIOS
Modular I/O System. This compact I/O system was introduced in early 2002 to replace an IOS
system that used Master and Slave IOS racks.
Mix-Minus
Mix-minus is the term used for a mix output that is the same as the main mix output with the
exception of one or more inputs that have been removed. A typical application is to provide a
programme feed to a remote contributor. If a remote contributor’s voice is returned to their
earpiece with delay it can prevent the contributor from being able to talk, so in this instance, the
contributor’s microphone and ambience mic are removed from the mix used for the earpiece feed.
Related terms are “n-1”, which is a mix, minus 1 input; n-x, which is a mix minus multiple inputs
and IFB, or Interruptible FoldBack, which is a mix-minus system with added features such as
injection of talkback and confidence signals.
Mix/Pass (Dynamic Automation)
A dynamic automation mix is referred to by its Mix/Pass number. Each time a modification to a
mix is made the number of the pass is increased. If the engineer returns to an earlier Mix/pass
and starts again, the number of the mix is increased.
Mix/Pass Tree (Dynamic Automation)
A graphical representation of the mix/passes that have been created. Any Mix/Pass can be
selected from the Mix/Pass Tree for re-loading on the console.

Issue 4 Libra Live Series II User Manual
11 Glossary
Pan Designators (Surround Sound)
Pan designators are used to set pan law(s) according to the format(s) of the destinations a source
is being panned across. Pan designations are created with the Desk Editor software and are part
of the Desk Setup. Mono groups and Tracks can have pan designations.
For example: Channel 1 is routed to Track 1 through Track 6. In the Desk Setup, Tracks 1-3 have
been “pan designated” as Front Left, Front centre and Front Right respectively. Tracks 4 & 5 are
designated left and right and track 6 is pan designated as mono.
When channel 1 is panned L-R, tracks 1-3 will receive a correct LCR pan - i.e. there will be no
signal on the left speaker when the pan has passed to the right of the centre speaker. At the
same time, tracks 4&5 will get a correct L-R pan with a phantom centre. Track 6 will not be
affected by the pan control at all. When channel 1 is panned front to back, tracks 1-3 will fade out
because they are designated front destinations, but channels 4-6 will not be affected (they are not
designated as either front or rear).
Path
Path (or signal path) is the term used to describe a discrete section of signal flow through the
console that has a distinct input and output, either to the outside world or to another path. For
instance, the input to a Channel is connected to an input port and the output from a channel is
connected (routed) to other signal paths (Track Monitors, Groups, etc.).
In an analogue console, there is a fixed number of signal paths and they are hard-wired into
different parts (or modules) in the console.
Libra Live can be configured with the numbers and types of paths required for a session using the
software utility “Desk Editor” that is part of the Encore suite. The paths are then assigned to
faders on the console surface using “Desk Designer”. Channel, monitor, group, auxiliary and main
output paths can all be given full processing (EQ dynamics etc) if required.
The main path types are:
Channel Path: Mono or stereo - these are the main input paths for the console.
Monitor Paths: Mono only - these paths consist of a track input (which is similar to channel path
but can be switched between an input and the bus of the same number) and a track output, which
is the output of the bus with the same number. Monitor path processing can be put in either the
track input or the track output. Monitor paths are used for multitrack outputs, mix-minus and
surround sound outputs
Groups: Mono or stereo - can be used as outputs or as sub-groups feeding the main outputs
Mains: Mono or stereo main outputs.
Listens: Stereo AFL and PFL busses
Sels: Stereo monitoring selectors, e.g. Main speaker selector, Headphone selector, meter
selector etc.
Films: Surround monitoring paths
EXTs: Stereo external inputs into the monitoring selectors
TB: A mono internal path used to route talkback and oscillator.
Ports
A port is a physical I/O connection to the console. This may be a MADI connection directly to the
DSP rack, or an analogue or digital connection to one of the I/O racks. Libra Live incorporates a
router that allows any input port to be connected to any input path and any output path to be
routed to any output port.
Libra Live uses a standard naming system for ports, but users may also assign their own names
for commonly used ports. The standard format uses lower case letters for inputs and capital
letters for outputs and looks like #nnn$$$ where # is the number of the MADI port the I/O is
connected to, nnn is the type of input, e.g. aes, lin (linear=analogue), mic or mad (MADI) and $$

Issue 4 Libra Live Series II User Manual
12 Glossary
is the port number within the rack. For example 3lin7A signifies analogue input 7A on the rack
connected to MADI port 3.
Note that ports are counted as though they were stereo: 1lin1A, 1lin1B, 1lin2A, 1lin2B etc. It is
possible to connect 1lin1A to one mono fader and 1lin1B to another mono fader, maybe on the
other side of the console. Stereo inputs use ports in pairs, e.g. 1lin 1AB.
An input port can be connected to more than one input path, but only one output path can be
routed to an output port. If an input port is connected to more than one path, then changes to the
input port (e.g. gain) from one path will affect all the paths.
Preferences
Not all users want the console to work the same way. Libra Live allows each user who logs onto
Encore with a unique user ID to create a set of “user preferences” that will be restored whenever
that user logs on to Encore.
Processing Element
Libra is a digital console that, depending on the specification, has a certain amount of processing
power available. The SSP or ESP cards provide the processing power in the System or SPS
Rack.
The processing power is assigned in portions according to how the console is configured for the
current session. Each signal path requires a certain amount of processing power. A signal path
can also contain audio processing, such as EQ or dynamics, and this also uses processing
power.
A processing element is one of the individual items of audio processing (a gate, three band
equaliser, etc.). The processing elements (and the processing power required) are assigned (or
allocated) to the signal paths in advance of being used. The system works out how much
processing power would be required for the configuration requested and if there is too much then
the excess is rejected. Anything that applies changes to a signal in a path uses processing - this
even includes the fader.
Record Pass (Dynamic Automation)
A Record Pass is made when the transport is in play and changes to control values are recorded
against timecode.
A new Mix/Pass number is created and displayed in red on the Encore screen.
Scope
Some commands on the console, such as control copying, or taking and restoring snapshots of
control settings can affect a variable number of controls with one action. For example a single
gain trim control position may be copied from one channel to another, or the whole channel’s
settings may be copied. The extent of the controls that are to be affected is known as the “scope”.
The scope of the action is defined before the action is carried out.
SELs
Sels are monitoring signal paths that incorporate a source selector.
Stem
This term is derived from the film industry. In the context of Libra Live a stem is a surround sound
output of any format (LCRS, 5.1 etc.).

Issue 4 Libra Live Series II User Manual
13 Glossary
Sync Source
This is the source for the word clock synchronisation signal that is used to ensure that samples of
digital audio are sent and received simultaneously by digital audio devices that are connected
together.
Timecode (Dynamic Automation)
Timecode is a coded signal that is used to set the absolute timeline position.
The source for timecode can be a tape machine (digital or analogue) or a pulse generator (video
source).
Tracks
Tracks are another word for “monitor outputs” which are output busses used for multitrack sends,
surround outputs and mix-minus outputs. Libra Live can have up to 96 monitor paths. Each
monitor path has a track send (the send to the multitrack, surround output or mix-minus output)
and a track return (not normally used when the output is used for surround and mix-minus
outputs). The track return can be switched between the track’s corresponding output (bus) or a
separate input (tape). Signal processing can be allocated to the track send part of the path (i.e.
after the summing bus and before the physical output) or to the track return part of the path (after
the bus/tape switching and before the signal is re-routed to other mix busses).
Turbo Allocation
Turbo Allocation is used to allocate and remove small quantities of processing without having to
load a whole console. For instance, if a path requires EQ (such as a Main Output that would not
usually have EQ) it can be added as a one off operation with Turbo Allocation. Turbo allocation is
normally done with Encore’s Path Editor.
Note: On SSP and ESP equipped consoles turbo allocation mutes the console for a few seconds
while processing is re-allocated, so is automatically barred when the console is on-air.
Virgin Territory (Dynamic Automation)
This is an expression used to describe parts of a Mix/Pass (or a series of Mix/Passes) for which
there is no automation data and no settings in the Initial Snapshot.
Word Clock
This is a form of synchronisation signal used by digital audio equipment. It should not be
confused with timecode (or timeline) which is used to keep devices lined up at the same time
position.
Fade (Dynamic Automation)
This is an abbreviation of crossfade used in dialogue boxes in Encore to indicate where crossfade
times can be entered (e.g. for Mix Conforming).

Issue 4 Libra Live Series II User Manual
14 Introduction
Introduction
Information in this Manual
The information in this manual is intended for users familiar with the operation of
mixing/broadcast consoles. It is assumed that operators and engineers who will be using the
Libra Live are familiar with concepts such as EQ, mix minus, delay, etc.
However, Libra Live is an assignable digital system and this will be new territory for many users,
so this manual covers new ways of working in greater detail.
Structure of this Manual
The first four sections of the manual cover basic operation of the console. Subsequent chapters
give more detail on advanced topics.
Glossary Of Terms
This has definitions of terms as they are used in this manual and in the context of using Libra
Live. Many entries include explanations of fundamental concepts.
Libra Live Console Surface
This is a section-by-section description of Libra Live's console surface. It gives detailed
instructions on the use of each section.
Using the console
This section is task oriented and gives instructions on how to turn the console on, how to route
signals and operate the console using procedures detailed in the preceding chapter.
Encore
The Encore suite is used to configure the console and for automation. This section gives an
explanation of the configuration aspects of Encore. The automation is dealt with separately in the
Automation sections of the manual.
This manual is primarily a reference tool and is as complete as possible covering configuration,
operation and maintenance.
Using Data From Earlier Software Versions
This manual was written with the release of Version 2.8 software. It is updated whenever software
changes the operation of the console significantly. Please check the release notes supplied with
new software releases for interim operational updates and for compatibility issues between old
and new software.

Issue 4 Libra Live Series II User Manual
15 Console Surface
Libra Live Console Surface
Fader sections
A
FU Fade
r
Monitor select
Utilities
Global layer control
Machine control
Number entry
Automation control
Shortcut keys
Monitor control
Aux/Group meters
Input meters
Encore keyboard
Encore Screen
Options section
Monitor & phase meter
Main AFU section
Main meters
Assignable meters
Mix minus meters
Routing screen
Master fader section

Issue 4 Libra Live Series II User Manual
16 Console Surface
Control Types
Faders
The faders fitted are motorised, are touch sensitive and may optionally be fitted with a PFL-on-
overpress facility.
Whenever a fader is touched, its value is displayed in the alphanumeric display above.
The faders have two scales. The white scale shows the gain setting. The blue scale is used for
fader trim in dynamic automation.
Logicators
The rotary controls, or Logicators, are unique to AMS Neve products. They
incorporate a ring of illuminated segments in the top of the control to indicate
the position of the control. This makes the position indicator highly visible at
all times; it is not hidden by other controls or by the knob itself.
The second unique feature is that the control is touch sensitive. Whenever a
Logicator is touched, a numerical value is displayed either in the alpha next
to the control, or on the AFU’s central alpha. The touch sensitivity is also
used to simplify the selection of controls on the AFU when assigning them to
the fader Logicators, or when setting the scope of the copy, snapshots and
other automation functions.
Switches
A variety of switch types are used on the control surface. Many of the switches have tri-colour
LEDs. Where possible we have avoided the use of orange (red and green mixed) and have
provided a user preference for the relative brightness of red and green to assist colour blind
operators. In general, a green light will signify that a switch is available to use and a red light will
indicate that it is active (on).
Some switches have two levels of operation that are dependent on how hard the switch is
pushed. Examples are the fader strip ON and AFL switches. These two switches have to be
pressed fully in order to operate (a safety feature). The use for the dual layers is in dynamic
automation: pressing the switch to the first level tells the automation system to start writing
automation data for the switch. Pressing the switch to the second level actuates the function.

Issue 4 Libra Live Series II User Manual
17 Console Surface
Fader Strips

Issue 4 Libra Live Series II User Manual
18 Console Surface
Fader Strip Logicators
The upper row of Logicators can be assigned to different functions
on a channel by channel basis. This is done by assigning the
function globally with the UPPER KNOB ASSIGN switches in the
AFU fader strip and then locking the function on individual channels
with the LOCK KNOB switch on the fader strip. The electronic
scribble (alpha display) shows the current assignment of the upper
Logicator.
To assign the top Logicator to any AFU function
³Press and hold the central ASSIGN switch in the AFU fader strip while
touching the required control on the AFU. This will assign the function of the
touched control to the top logicator on all fader strips that do not have the LOCK
KNOB switch engaged.
To assign a second layer of faders to the upper logicators
³Press and hold the 2ND CHAN button switch in the AFU fader strip and select
the required layer using the FADERS GLOBAL CONTROL panel layer selector
switches.
To assign the MIX MINUS or TRACK output level trim controls to the upper
logicators
³Press the MIX_/TRACK switch in the AFU fader strip. This will assign the
function to the top logicator on all fader strips that do not have the LOCK KNOB
switch engaged.
The LOCK KNOB switch on the fader strip will lock the upper Logicator to the
function that it is currently assigned to, allowing individual channel Logicators to be
assigned to different functions. For example:
To assign the top Logicator on one fader strip to Aux 7 send and to gain
control on all other faders
³Turn off the LOCK KNOB switch on all fader strips.
³Press and hold ASSIGN on the AFU fader strip.
³Touch the Aux 7 Logicator on the AFU to assign Aux 7 across the console.
Release the ASSIGN control.
³Turn on the LOCK KNOB switch on the selected fader strip.
³Use the ASSIGN key to assign the gain control from the AFU to all Logicators.
The Locked Logicator will remain assigned to Aux 7.
The lower Logicators may be assigned console-wide to pan, input gain or an aux.
This is done with the ALL/SCOPE switch in the centre section of the console.
To assign pan, input gain or an aux to the lower logicators
³Press and hold ALL/SCOPE in the MASTER AUTOMATION panel of the master section and
touch the required function (LCR pan, TRIM or an AUX control) on the AFU.
The lower Logicator function is indicated by hidden till lit legends next to the Logicator. (I/P, AUX
or PAN, but older consoles do not have the PAN indicator.) The LOCK KNOB switch does not
affect the lower Logicator.
If the gain control is assigned to the lower Logicator by touching TRIM, all fader strips with a
mic/line amplifier input will have the analogue gain control assigned, while input channels with
other input port types will have the digital trim control assigned.

Issue 4 Libra Live Series II User Manual
19 Console Surface
Fader Strip Keys
BUS and TAPE
These keys are used to select the input for Monitor paths. It is possible to
select both together to hear a mix of bus output and tape return.
FLIP
The FLIP key is used to swap over the paths that are on the Fader and the
Upper Assignable Logicator. The A and B indicators, together with the SUB or
MON indicator below the fader, indicate which layer the path on the fader is
from.
LOCK KNOB
This key locks the function of the Assignable Logicator on its current function.
LOCK
The LOCK switch isolates the strip from the effects of the path switching keys
in the FADERS GLOBAL CONTROL panel. Lock will affect both the fader and
the top logicator, or just the fader, according to the preference set in Encore’s
User Preferences.
Electronic Scribble
The electronic scribble (also called an alpha display) shows which path is
currently assigned to the fader. If a path has been given a user name then this
will be displayed. The fader level is indicated on the right hand four characters
of the scribble, unless this feature is disabled in User Preferences.
PLAY and REC
These two switches are for setting the scope of the snapshot automation
(recall and store) and for setting the mode of the fader automation when
Dynamic Automation is in use.
MIC/LINE
This switch selects the input for paths that have a mic/line amp input attached.
This is a 3-state switch, which before the introduction of V2.7 software toggled
between Red - mic, Orange - mic + 48V, Green - Line. In V2.7 software and
later software, the switch toggles between Red - mic 1, Orange - mic 2 and
Green -line for Libra Lives that use the MIOS I/O system.
This switch works in parallel with the switching in the AFU.