Steinberg Nuendo Time Base Operation Manual

Time Base – Operation Manual
Operation Manual by D. Popow
The information in this document is subject to change without notice and does not rep­resent a commitment on the part of Steinberg Media Technologies GmbH. No part of this publication may be copied, reproduced or otherwise transmitted or recorded, for any purpose, without prior written permission by Steinberg Media Technologies GmbH.
All product and company names are ™ or ® trademarks of their respective owners.
© Steinberg Media Technologies GmbH, 2004. All rights reserved.
Table of Contents
7 Preface
9 Package Contents and
Installation
10 Package Contents 10 Installation – Connections –
Getting Started 11 Important Safety Instructions 12 Driver Software Installation 12 Windows PC Drivers 12 Mac OS X Drivers
13 Features and Basic
Settings
14 Time Base – Brief Overview 15 Basic Settings
17 Typical Setup
Examples
18 Basics 19 Computer Connection 20 Settings in Nuendo 20 Time Base 22 Setting up the Time Base
9-Pin Device Control Panel 24 Time Base Slave 25 Setup Examples 25 LTC as the Master 25 MTC as the Master 27 Internal Clock as the Master 28 House Sync (Blackburst) as
the Master 30 Machine Control 34 Video functions 36 Digital Varispeed
37 Reference
38 Basics 40 Selecting Pages in the
Display
40 The Main Page – Display
page P.1
48 VITC and Time Code
Inserter – Display page P.2
50 Varispeed, Word Clock 2,
3, 4 and AES/EBU Output – Display page P.3
52 Time Code Test and Offset
– Display page P.4
54 LTC output, Preroll, USB
port and System Video settings – Display page P.5
57 Selecting tracks and
switching Track Selection pages – 9-Pin-Machine A – Display page P.A
59 Track Selection Virtual
Machine – Display page P.V
61 Service and Machine
Pages
62 Calling up the Service and
Machine Pages
62 Virtual Machine and MMC
settings – Display page SP1
65 Presets, Time Code level,
Red light and SYSEX handling, Initialization after a Software Update – Display
page SP2 68 Test and Setup Machine A 72 Preset Tables
TIME BASE
4 Table of Contents
77 Connections
78 Connections on the rear panel 78 VITC-Reader/Generator/
Inserter 78 Video Sync In/Out 78 LTC – Longitudinal Time
Code 79 VST System Link 79 Word Clock OUT 1-4 79 USB 79 9-Pin 80 GPI/O | MIDI 80 Wiring Examples – GPI/O 81 Power and Protection
Circuit 82 Technical Data
83 VST System Link
84 What is VST System Link? 85 How does VST System Link
work?
86 VST System Link –
Troubleshooting
87 Glossary
TIME BASE
Table of Contents 5
TIME BASE
6 Table of Contents
1
Preface
Congratulations on your purchase of Nuendo Time Base!
The Time Base offers perfect solutions for sample-accurate synchronization of digital audio production systems like Nuendo via House Sync (Black­burst), AES/EBU – VST System Link, LTC or VITC with analog or digital audio and video tape recorders, mixing desks, sequencers etc.
Time Base combines the functional domains Word Clock (AES/EBU – VST System Link), Time Code, Machine Control and Virtual Machine.
It reads and generates the standard Time Code formats LTC, VITC, MTC and 9-pin. Generated Time Code is in sync with the video sync signal.
A built-in Video Inserter lets you visually insert Time Code into the video picture or add VITC to the video signal.
An integrated 9-pin interface lets you control external 9-pin compatible devices, e.g. a Betacam video recorder, Tascam DA88, DA98, MMR8 or Doremi V1.
Time Base can also be used as a Virtual Machine. This lets you, for in­stance, remote control Nuendo from 9-pin Edit Controllers, and mixing desks that provide 9-pin machine control (SSL, NEVE…). The GPI/O socket on the Time Base provides the possibility to realize Red light (“on air”) control.
Time Base provides a two-line display and four ergonomically positioned buttons. These can be used to call up various display pages and set indi­vidual parameters. Settings can also be made from within Nuendo, pro­vided that the corresponding application is connected to the Time Base via USB. When you load a Project, all relevant Project settings are auto­matically transferred to the Time Base.
We are sure that using Time Base will simplify your studio work and will help you to become even more productive. We hope that you have fun using Time Base!
For their continuous support during the development of Time Base, we would particularly like to thank:
Achim Kruse, Burkhard Bürgerhoff – C-Lab
The Steinberg team
TIME BASE
1 – 8 Preface
2
Package Contents and
Installation
Package Contents
Time Base
Power Cable
User Manual
Driver CD
Warranty Card
Installation – Connections – Getting Started
Time Base is designed to be mounted in a 19“ rack. It should either be in­stalled in a 19” rack or placed on a stable surface, as it can fall down and be damaged. Proximity to heating or cooling equipment should be avoided (operational temperature range 15-35 degrees Celsius).
The power connector should only be connected to an earthed power socket using an earthed power cable delivering 110-240V.
All signal connections should be made with shielded cables! All connec­tions, except LTC in/out (analog audio), should be made with cables of the correct impedance, suitable plugs and termination, if necessary (see page 82).
For some System setup examples see page 17.
TIME BASE
2 – 10 Package Contents and Installation
Important Safety Instructions
Do not leave the power cable where people walk, in order to avoid any accidental interruption of power. If an extension block is used, then care should also be taken that all the connected devices do not together ex­ceed the maximum safe current draw.
Disconnect the power before cleaning.
Take care that no foreign objects get inside the machine. They could come into contact with current-conducting components or cause a short circuit, which in turn could cause a fire or an electric shock. Under no circum­stances should liquids be allowed to get inside Time Base.
When the cover of Time Base is removed, it is possible that dangerous current-carrying parts will be exposed to human contact. Therefore, all ser­vice operations should be carried out only by authorized service personnel.
Time Base should under no circumstances ever be used in proximity to water.
TIME BASE
Package Contents and Installation 2 – 11
Driver Software Installation
Windows PC Drivers
When you connect Time Base to your computer for the first time, Windows will recognize the new hardware component and start its “Add New Hard­ware Wizard”.
Insert the Driver CD into your CD-ROM drive and follow the instructions displayed on your computer screen.
The necessary driver software – a Firmware Loader and the actual Time Base driver – will now be installed during two separate installation processes.
You can safely ignore alert messages like “Digital signature not found”, “Do not install driver”, “Driver not certified”. Simply continue with the installation.
Restart your computer when the installation procedure has been com­pleted.
Mac OS X Drivers
When you have connected the hardware for the first time and started the computer, you can install the driver software from the Driver CD-ROM.
1. Start driver installation by double clicking on the Time Base Driver icon.
2. Follow the instructions on the screen and restart your computer when the procedure has been completed.
TIME BASE
2 – 12 Package Contents and Installation
3
Features and Basic Settings
Time Base – Brief Overview
Time Base is a universal synchronization and control device for digital audio and video in all fields of studio production.
Time Base combines the following four functional domains in one compact device:
Time code
Word-Clock (AES/EBU digital zero or AES/EBU for VST System Link)
Machine Control (MMC and P2 protocol/9-pin-control)
Virtual Machine (emulated 9-pin/P2 machine)
Time Base offers the following functions:
Reads and writes all standard Time Code formats: LTC, VITC, MTC and 9-pin (serial Time Code). The Time Code generator is in sync with the video sync signal.
Synchronizes digital audio systems to House Sync (Blackburst, video), AES/EBU (digital audio), LTC (“Longitudinal Time Code”, e.g. coming from an analog 24 track tape recorder).
Supports all sample rates between 16 and 192 kHz including pull-up/pull-down (NTSC).
Includes a synchronous digital Varispeed engine.
Converts MMC to 9-pin machine control. The built-in 9-pin bus can e.g. control Betacam VCR, Tascam DA88, DA98, MMR8, Doremi V1 etc.
Can be used as a Virtual Machine. This lets you remote control several hard disk re­cording systems from various points without having to switch the “remote control”. The Virtual 9-pin machine functions make it possible to control Nuendo from 9-pin edit controllers and from mixing desks that are equipped with a 9-pin machine con­troller (e.g. SSL, NEVE).
Can display (insert) Time Code in(to) video frames in two sizes and four display modes. The Time Code can be freely positioned within the frame.
TIME BASE
3 – 14 Features and Basic Settings
Basic Settings
Before each session, the following basic settings should be made or checked. Both of the following settings would normally be set according to the standard settings used in the respective country:
Time Base Display Page
P.5 SYS-VIDEO
P.1 FRM
Parameter Explanation Options
Video frame rate
Time code frame rate
E.g. 25 frames in Europe (PAL) or 29 frames in USA/Canada (NTSC).
25 frame (PAL), 29, or 29D (drop) frames (NTSC).
If the Time Base is being driven by video sync, the Time Code frame rate will be automatically set to the video frame rate.
The frame rate of the connected devices must be set to the same value!
Time Base Display Page
P.1 SR
Parameter Explanation Options
Sample rate The Sample Rate should be set to the
desired value for the project, and should be maintained unchanged throughout the whole project (e.g. 44.1 for CD, 48 for Video/Film, 192 for DVD Audio).
The Sample of synchronized devices must be set to the same value! When you make the settings for a new Project in Time Base, Nuendo will automat­ically recognize them. When you load a Project in Nuendo, Time Base will automatically be set to the same settings.
TIME BASE
Features and Basic Settings 3 – 15
In the case of incoming pre-produced material, all three parameters should be set to match, or the delivered material should be converted to the “house” standard (if the latter, please do so while synchronized!).
Time Base Display Page
P.3 VARSP=OFF
Parameter Explanation Options
Varispeed In this case, this parameter should be
set to OFF.
When you install and check out Time Base for the first time, it is a good idea to start out with one of the Time Base presets (see page 65). The individual Time Base parameters are described in detail on page 37.
TIME BASE
3 – 16 Features and Basic Settings
4
Typical Setup Examples
Basics
A few words of introduction to the technical problems which can occur in synchronization in an all-digital or hybrid analog/digital studio setup:
Basically, there are two different synchronization procedures.
One of the available audio or video machines becomes the master.
But the type of Time Code often used, LTC, contains two information streams:
The visible time information (hh:mm:ss:ff).
The invisible tempo information (Clock).
The LTC is thus used as position and Word Clock reference! It is this which may cause the problem, that errors in the Master Clock, i.e. in the Time Code (jitter, dropouts, wow & flutter in the master device) are passed on to all connected slave devices. Time Base is conceived in such a way that such problems are contained as much as is technically possible.
The signal used for synchronization in this case is referred to as “self-clock­ing”, because the principal aim is to transmit a clock signal (speed, Word Clock) in which the other data (Time Code numbers in LTC, digital audio in AES/EBU) happens to be included. Precisely because of this unavoidable passing on to slave machines of errors caused in part by the system itself, special care should be taken that the Time Code is error-free.
The more reliable procedure is this:
One Master Clock is used to synchronize all devices (data streams) in the studio. The Master Clock is the only device that generates a sync signal (e.g. Blackburst or Word Clock). When using Blackburst, Time Base uses this to generate the Digital Audio Clock. All connected audio and video devices there run from the same pace and use this as a speed ref­erence. This avoids the error described above.
This procedure only works with devices that can be synchronized externally. This includes not just audio and video devices, but also Time Code gener­ators as in Time Base). This means that when the Time Code generator has clocked another second, a digital audio signal with a 48 kHz sampling fre­quency for example should have played back exactly 48,000 samples). This procedure also means that tempo information is derived from a precise and stable source, which drives everything!
Time Base contains just such a clock.
TIME BASE
4 – 18 Typical Setup Examples
Computer Connection
Time Base must be connected to the computer via its USB port which is located on the rear panel. USB is used to transfer control and configura­tion data.
VST System Link is used for synchronization. All time-related data is therefore transferred via VST System Link.
Synchronization via USB-Serial-TC is also possible, if necessary.
TIME BASE
Typical Setup Examples 4 – 19
Settings in Nuendo
A detailed description of the Time Base Setup windows in Nuendo can be found in the documentation and Online Help systems of the corresponding – Time Base supporting – program versions.
1. Switch on Time Base, then start Nuendo.
Various setup parameter sets are available in Nuendo’s Devices Setup dialog for the differ­ent Time Base setup options.
2. You can open this dialog by selecting “Device Setup…” on the Devices menu.
3. First, use the “ADD/Remove” tab in the dialog to add the respective De­vice Class, if necessary or select one in the Devices list on the left side of the dialog.
Several Device Classes are available for Time Base. Click on the “Setup” tab, to make the corresponding settings.
Time Base
Here you can make basic settings.
TIME BASE
4 – 20 Typical Setup Examples
Parameter Options Effect
Time Base Device ID
0 - 126 ID 2 is preset
Device identification number. Must be set correctly to make sure the data arrives in the device.
Activate USB Timecode Sync
Ticked = On No tick= Off
If this option is activated, the Time Code synchronization with the computer takes place via the USB port. If the option is set to Off, synchro­nization with the computer takes place via the VST System Link connections between Time Base and computer.
The parameters Sample Rate and Frame Rate are read only.
Timecode Source LTC, VITC, MTC, M.V (MIDI), M.A
(9-Pin)
Depending on which Time Code source you select, different options are available in the Clock Source pop-up menu.
Clock Source Internal, V-SYNC, LTC-Norm,
LTC-Hold
Timecode Inserter Ticked = On
No tick= Off
The available Clock source options.
When this option is activated, Time Base will insert the Time Code into the video frames (“Burn-in window).
Display Type White on Black,
Black on White,
Display options for the inserted
Time Code. White Contour, Black Contour
Type +In, +TC9 Lets you select the Time Code
type displayed by the inserter
(see page 35).
Size Small, Large Display options for the inserted
Time Code.
Vertical Position, Horizontal Position
Timecode Positioning field
0 - 127 Lets you numerically position the
inserted Time Code.
Manually by dragging Here you can define the position of
the inserted Time Code within the
video frame by manually dragging
it with the mouse. Note: The real
size of the displayed Time Code is
not shown in this positioning field!
TIME BASE
Typical Setup Examples 4 – 21
Setting up the Time Base 9-Pin Device Control Panel
Here you make the settings for 9-pin device control (see below). Make sure, that the corresponding function is available in the 9-pin device that you use.
Parameter Options Effect
Timebase 9-Pin­Device ID
The following parameters are used to set up track remote control for the connected machine.
Number of Audio Tracks
Aux 1, Aux 2 Activate (tick) /
Timecode Activate (tick) /
Video Activate (tick) /
0 - 126 Lets you set the 9-pin device ID. The Nuendo/Time
Base standard value is 4
2 - 64 Lets you define the number of digital audio tracks
available in the connected 9-pin device, which thereby become visible and can be controlled from the 9-pin device control panel.
When you activate these parameters, the (analog)
Deactivate (no tick)
Deactivate (no tick)
Deactivate (no tick)
audio tracks appears in the 9-pin device control panel.
Most 9-pin devices provide special time code tracks. If you activate this parameter, the time code track of your 9-pin device appears in the 9-pin device control panel.
If the connected 9-pin device processes video, you can use this parameter to make the corresponding Arm Track control visible in the 9-pin device control panel.
All tracks available in your 9-pin device should be included in the 9-pin device control panel. This will give you a better overview and you are always informed about the current track status.
TIME BASE
4 – 22 Typical Setup Examples
Time Base 9-Pin Device Control Panel
Open this control panel by selecting “Time Base 9-Pin” on the Devices menu. It can be used to remote control a 9-pin device that you have con­nected to the Time Base from Nuendo and to arm its tracks.
Which functions are available on this control panel depends on which func­tions are available in the connected 9-pin device and also on the settings that you have made in the Time Base 9-pin view of the Device Setup dialog, see previous page.
Depending on your settings, the following elements (from left to right) may be visible in the control panel:
The set up number of audio tracks. These can be armed with a mouse click.
The Aux 1 and 2 tracks, which some devices make available separately or which may also be “hidden”, as well as the time code and video tracks. These can be armed here, too.
The transport controls control playback and recording functions of the 9-pin device.
The Online switch must be activated. If it isn’t, remote control is disabled.
In the upper section of the control panel, the current time code position, the Time Base status as well as the connected 9-Pin device are displayed.
To the left of the 9-pin device indicator, the following error messages may become visible:
<Local> Remote control is deactivated in the external 9-pin device.
<NoTape>
This error message is shown when theres no tape on the con­nected 9-pin tape recorder.
TIME BASE
Typical Setup Examples 4 – 23
Time Base Slave
Here you can activate remote control of Nuendo by using the combination of Nuendo and Time Base as a virtual machine. Which functions are actu­ally available for the virtual 9-pin machine depends mainly on the options available in the external controller unit.
Time Base Slave dialog view in the Device Setup dialog.
The only parameter that you can set here is the Time Base Device ID. It is preset to its (Nuendo) standard value 2.
TIME BASE
4 – 24 Typical Setup Examples
Setup Examples
LTC as the Master
This procedure is particularly favoured in music productions. The hard disk recorder (i.e. Nuendo) is “slaved” to the analog machine (e.g. a 24 track recorder).
Time Base settings: Connections:
MTC as the Master
Normally in professional situations, this should only be seen as a last re­sort emergency procedure, i.e. to save a production which otherwise would be lost. The reason for this lies in the often technically inadequate implementation of MIDI Time Code, causing MTC to be saddled with high jitter from external sources. It is impossible to pass on a stable, jitter-free Word Clock from such an MTC-signal.
TCIN=LTC, CL: LTC-HOLD
USB port
VST System Link
LTC
However, as it is sometimes necessary to perform this conversion (to continue with a production begun in semi-professional circumstances), Time Base generates the clean Word Clock necessary for sonic quality by taking an average value from the incoming MTC. If the jitter in the in­coming MTC were allowed to affect the Word Clock, the connected dig­ital devices would all have their audio quality compromised by locking to such a reference clock, provided that would be possible at all.
Time Base expects MTC input via its 15-pin MIDI|GPI/O socket on its rear panel. The socket wiring is described on page 80. Examples for 15-pin connector wiring can be found on page 80.
TIME BASE
Typical Setup Examples 4 – 25
Time Base settings:
TCIN=MTC, CL: MTC-HOLD
Connections:
USB port
VST System Link
ext. MTC-In
If you should find yourself in such a situation, you can sometimes chose the following:
If your MTC source is a stand-alone Hard Disk Recorder with a digital in­put which can be externally synchronized, you should switch the Word Clock source of the recorder to “digital in”, having connected it to a Word Clock output on the Time Base. If you now use the MTC produced by the recorder as a positional reference, your entire system will follow the exter­nal device.
Time Base setting:
CL:INTERNAL
(V-SYNC)/
TCIN=MTC
Connections: stand-alone« HD-Recorder and Nuendo
Audiosignale
USB port
Stand-alone HD Recorder
Word Clock
VST System Link
MTC
As an alternative, the MTC produced by Time Base can be used as a po­sition reference by the external device. In this case the external device fol­lows the system.
TIME BASE
4 – 26 Typical Setup Examples
Internal Clock as the Master
A technically perfect procedure: Time Base generates the Word Clock and VST System Link signals for all the digital devices running in the en­tire studio. As all devices run in sync, data transfer without interruptions is also possible. Increased jitter (and associated loss of quality in synchro­nized audio signals) is thereby prevented.
To prevent misunderstandings, Time Base is always the Timing Master, but not necessarily the Positional Master. A hard disk recorder, that is synchro­nized to Word Clock and has a MIDI Time Code output (which must of course be synchronized to Word Clock) can e.g. control a digital mixer that is also locked to Word Clock. The user has the impression that the hard disk re­corder is the Master while it is in fact only the Positional Master, but not the Word Clock Master.
Settings:
CL:INTERNAL
If required, the Time Code functions of Time Base can be used to convert the Time Code format. The technically best solution is to use the Virtual MIDI Machine the generate a clock synchronized Time Code.
Connections:
USB port
VST System Link
LTC (e.g. to control a Mix Automation)
TIME BASE
Typical Setup Examples 4 – 27
House Sync (Blackburst) as the Master
A second technically perfect procedure: Time Base is connected to a house sync generator (Blackburst) via the Video Sync In. All the advan­tages listed in the section "Internal Clock as the Master" on page 27 are retained. In addition, the Time Code generator is synchronized to video. This procedure should be used, whenever audio is being edited in sync with video picture.
If several studios are housed in the same building, they can be linked to­gether via the house clock, and can work in sync, without having to live with the restrictions of Word Clock connection.
With Word Clock connection, the entire studio would have to work at the same sample rate.
Settings:
CL:VIDEO/TCIN=LTC, VITC
or
9-Pin
Connections: Blackburst as the Master in a system with a VTR.
USB port
VST System Link
Video Sync
Blackburst Generator
LTCSync In
9-Pin
Video
In­serter
00:00:00:00
Video with inserted Time Code
TIME BASE
4 – 28 Typical Setup Examples
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