User manual

Table Of Contents
428
Synchronization
Hardware and software requirements for APP
Your computer audio hardware (in the example above this
would be an ADAT card in your computer) must support all
the functionality required for the ASIO Positioning Protocol.
That is, it must be able to read the digital audio and the corre-
sponding position information from the external device.
There must be an ASIO 2.0 driver for the audio hardware.
For resolving to external timecode, the audio hardware must
have an integrated timecode reader/generator.
For information about which audio hardware models currently
support APP, see the Steinberg web site (www.steinberg.net).
Setting up the audio card for external synchronization
1. Open the Device Setup dialog from the Devices menu
and, on the VST Audio System page, select the name of
your audio interface.
2. Click the Control Panel button to open the card’s pro-
prietary setup dialog.
If this card is accessed via a special ASIO driver (as opposed to MME or
DirectX), this dialog is provided by the card, not by Cubase. Hence the
settings vary with the card brand and model.
3. Adjust the settings as recommended by the card man-
ufacturer, then close the dialog.
The dialog may also contain various diagnostic tools that allow you to
verify for example whether word clock is arriving correctly.
4. From the Clock Source pop-up, select the input to
which you routed the word clock signal.
This pop-up may not be used if you selected an input in the Control
Panel dialog instead.
You can now set up the synchronization:
1. Open the Project Synchronization Setup dialog and
set the Timecode Source to “ASIO Audio Device”.
2. Make the desired settings in the dialog.
For information on the different sections, click the Help button in the dia-
log.
3. Close the Project Synchronization Setup dialog.
4. Open the Project Setup dialog from the Project menu
and use the Start value to set which frame on the external
device (e.g. a video tape) should correspond to the begin-
ning of the project.
!
The ASIO Positioning Protocol exploits the specific
advantage of having an audio card that has an inte-
grated timecode reader. With such a card and the
ASIO Positioning Protocol, you can achieve constant
sample-accurate synchronization between the audio
source and Cubase.
The ASIO Audio Device is selected as Timecode Source
Outputs for
MIDI Clock
Input and Output for
MIDI Machine Control
messages
Set this to the time-
code position
where you want the
project to start.