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24—MIDI and Synchronization
310 www.rolandus.com Roland VS-2480 Owner’s Manual
data can then be sent back to the sequencer, slaving it to the VS-2480. You can also
construct a sync track for a new or already recorded project using markers. In
addition, the VS-2480 can use information you provide about an already recorded
project to create a new sync track. See Page 311 for details on using a sync track.
•
tempo map
—an editable stream of MIDI clock/SPP synchronization data. Each
VS-2480 project has its own a tempo map in which you can view and edit a project’s
tempo and time signature changes. You can build a tempo map for a new or already
recorded project on the VS-2480 manually or by using markers, or convert an
existing sync track into a tempo map. For details, see Page 312.
The primary difference between a sync track and a tempo map in synchronization
operations is that a tempo map lets you see and edit tempo and time signature changes.
The SYNC PARAMETER Screen
The VS-2480’s synchronization parameters can be found on its UTILITY menu SYNC
screen. To get there:
1. Hold down SHIFT and press the EXT SYNC button—the SYNC
screen appears.
2. Select the desired sync parameter and adjust its value.
A project’s tempo map also provides the basis for the Home screen’s track editing grid.
The phrase sequencer uses it for quantization, step entry and editing.
To synchronize an external MIDI device to the VS-2480 using a sync track or tempo
map, the device must recognize MIDI clock and Song Position Pointer messages.
The VS-2480 has an area of memory set aside for a sync track—it isn’t recorded on a
project track and doesn’t take up any recording or phrase sequencer tracks.
It’s important to understand that a sync track or a tempo map has no effect on the
speed at which a project plays back—this speed is determined by the project’s
sampling rate and its VARI PITCH setting, or by received MTC/SMPTE time code. A
sync track and tempo map merely transmit tempo and time signature information that
describes what’s going on in a project to a MIDI device synchronized to the VS-2480.
Some synchronization operations also involve parameters on the MIDI PARAMETER
screen (Page 299).
SHIFT
EXT SYNC
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