Using The Tempo Map - Roland VS-1824 Owner's Manual

Chapter 15 Using External MIDI Devices
7. Use [
], [ ], [
cursor to "Sync Gen.," and use the TIME/VALUE dial to
change the setting.
Sync Gen. (Sync Generator)
This setting determines what type of MIDI signal is
generated at the MIDI OUT connector on the VS-1824.
For this application, choose "SyncTr."
Off:
No MIDI signals are transmitted.
MTC:
MIDI Time Code is transmitted.
MIDIclk:
The tempo map MIDI Clock is transmitted.
SyncTr:
The sync track MIDI Clock is transmitted.
8. Press [PLAY (DISPLAY)] to return to the Playlist display.
9. Set your MIDI sequencer to follow the MIDI Clock
messages received from external devices, and to play
back MIDI song data. When playback begins on the VS-
1824, the MIDI sequencer will begin playback as well.
202
], and [ ] to move the

Using the Tempo Map

If your MIDI sequencer supports Song Position Pointer
messages, you can use the MIDI Clock to synchronize
operations. There are two methods of synchronization using
the MIDI Clock: one is to use the sync track, and the other is
to use the tempo map. This section provides an explanation
of how to control the MIDI sequencer from the VS-1824 using
a tempo map.
What is a Tempo Map?
A tempo map is a song's measure, beat, and tempo
information. By transmitting this information to MIDI
sequencers and other devices, it can be used to synchronize
operation with external MIDI devices. The tempo map sets
tempo changes for each measure, so you can record
information that specifies changes in rhythm and tempo to
be played from any designated measure. With the VS-1824,
tempo map s are numbered sequentially from the beginning
of the song, with Tempo Map 1 first, followed by Tempo
Map 2, Tempo Map 3, and so on. Tempo Map 1 is already
specified at the beginning of the song, and determines the
initial tempo of the song. To change the tempo at a
subsequent measure, create a new tempo map at each
location where you want the tempo to change. You can create
up to 50 tempo maps per song.
fig.08-09
Example 1: Song with no tempo changes
Tempo Map 1 (120 BPM)
Example 2: Song with tempo changes occurring during the song
Tempo Map 1 Tempo Map 2
(120 BPM) (117 BPM)
Tempo Map 3
(108 PBM)
Time