Roland VS-1824 owner manual Using the Tempo Map, What is a Tempo Map?, 202

Chapter 15 Using External MIDI Devices

7.Use [ ], [ ], [ ], and [ ] to move the 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.

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.

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.

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.

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	Tempo Map 3
(120 BPM)	(117 BPM)	(108 PBM)

Time

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