9.0

Table Of Contents
Synchronization
The Project Synchronization Setup dialog
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Word clock
Word clock is a dedicated signal running at the current sample rate that is fed
over BNC coaxial cables between devices. It is the most reliable form of audio
clock and is relatively easy to connect and use.
AES/SPDIF Digital Audio
An audio clock source is embedded within AES and SPDIF digital audio signals.
This clock source can be used as a speed reference. Preferably, the signal itself
does not contain any actual audio (digital black), but any digital audio source can
be used if necessary.
ADAT Lightpipe
ADAT Lightpipe, the 8-channel digital audio protocol developed by Alesis, also
contains audio clock and can be used as a speed reference. It is transmitted via
optical cables between devices.
NOTE
Do not confuse the audio clock embedded in the Lightpipe protocol with ADAT Sync, which
has timecode and machine control running over a proprietary DIN plug connection.
MIDI clock
MIDI clock is a signal that uses position and timing data based on musical bars and beats
to determine location and speed (tempo). It can perform the same function as a positional
reference and a speed reference for other MIDI devices. Cubase supports sending MIDI clock
to external devices but cannot slave to incoming MIDI clock.
IMPORTANT
MIDI clock cannot be used to synchronize digital audio. It is only used for MIDI devices to play
in musical sync with one another. Cubase does not support being a MIDI clock slave.
The Project Synchronization Setup dialog
Cubase’s Project Synchronization Setup dialog provides a central place to configure a
complex synchronized system. In addition to settings for timecode sources, project setup
parameters are available along with basic transport controls for testing the system.
To open the Project Synchronization Setup dialog, select Transport> Project
Synchronization Setup.
The dialog is organized into sections separating related groups of settings. The arrows
shown between the various sections of the dialog indicate how settings in one section
influence settings in another section. In the following, the available sections are described in
detail.
The Cubase Section
At the center of the Project Synchronization Setup dialog is the Cubase section. It is provided
to help you visualize the role that Cubase takes in your setup. It shows which external signals
enter or leave the application.