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Chapter 9 use with midi devices 117 – Roland VS-880EX User Manual

Page 117

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Frame

(Appendices p. 123)

NTSC Format

(Appendices p. 124)

SECAM Format/PAL Format

(Appendices p. 124)

Synchronization with the VS-880EX
as the Reference (Master)

When you are having the VS-880EX act to control the
MIDI sequencer, use the following procedure.

1. Connect the VS-880EX and the MIDI sequencer as

shown below.

2. Press [SYSTEM] several times until “SYS MIDI

PRM ?” appears in the display.

3. Press [YES].

4. Press PARAMETER [

] several times until

“SYS MID: MIDIThr=” appears in the display.

5. Rotate the TIME/VALUE dial.

MIDI Thru (MIDI Thru Switch)
This selects the function of the MIDI OUT/THRU con-
nector. For now, select “Out.”

Out:

The connector transmits MIDI messages from
the VS-880EX. Select this when you want to
transmit metronome Note messages or mixer
parameter settings (control change messages or
exclusive messages).

Thru:

MIDI messages received at the MIDI IN con-
nector will be retransmitted from the connector
without change.

MIDI Sequencer

(implements MTC)

MIDI IN

Chapter 9 Use with MIDI Devices

117

Chapter 9

Drop Frame and Non-Drop Frame
There are two types of time code used by NTSC
format video cassette recorders,

drop

, in which

the time code is not continuous, and

non-drop

,

which features continuous time code. In drop,
which is used for NTSC color video format, the
first two frames of every minute are dropped,
except for those at ten-minute intervals.

In most video and audio production, since for-
mats with continuous frames are easier to deal
with, non-drop is generally used. In contrast, in
situations such as in broadcast, where the time
code must match actual clock time, drop is used.

00

01

02

03

04 05f

29

28

27

26

25

...

...

01m00s

00m59s

02 03 04 05 06 07f

29

28

27

26

25

...

...

01m00s

00m59s

Drop Frame (29D)