User manual

505
Synchronization
Scrubbing via VST System Link
You can scrub on one computer and have the video and
audio on another computer scrub along. However, the
playback on the linked systems may not be perfectly in
sync while scrubbing and there are some further restric
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tions you should bear in mind when scrubbing via VST
System Link:
• Use the jog/shuttle control on the Transport panel or a
remote controller for scrubbing.
Scrubbing with the Scrub tool does not work over a VST System Link
connection.
• Always use the system where you started scrubbing to
control the scrubbing, e.
g. change the scrub speed or
stop scrubbing.
Changing the scrub speed on a remote system will only change the
speed on the local system.
• You can start playback on all systems.
This stops scrubbing and enters playback on all systems in sync.
Using MIDI
As well as supplying transport and sync control, VST Sys-
tem Link also supplies up to 16 MIDI ports, with 16 chan-
nels each. To set this up, proceed as follows:
1. Use the MIDI Inputs and MIDI Outputs value fields to
specify the number of MIDI ports you need.
The default value is 0 MIDI In and 0 MIDI Out ports.
2. In the Project window, create a MIDI track and open
the Inspector (top section).
3. If you now pull down the Input or Output Routing pop-
up menu, you will find the specified System Link ports
added to the list of MIDI inputs or outputs.
This allows you to route MIDI tracks to VST instruments
running on another computer, as described in the applica-
tion examples (see “Using one computer for VST instru-
ments” on page 507).
The “Use Selected ASIO Ports for Data only” setting
If you are sending huge amounts of MIDI data at once,
there is a small possibility that you might run out of band
-
width on your VST System Link network. This will manifest
itself by notes “choking” or timing becoming erratic.
If this happens, you can devote more bandwidth to MIDI
by activating the “Use Selected ASIO Ports for Data only”
option on the VST System Link page of the Device Setup
dialog. When this is activated, the VST System Link infor
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mation will be sent on the entire channel instead of just
one bit, more than enough for all the MIDI you could ever
hope to use. The downside is that you can no longer use
this ASIO channel for audio transfer (do not connect it to a
speaker!), thus leaving you with only 7 audio channels in
our ADAT cable example. Depending on how you work,
this might be a reasonable compromise.