MIDI Synchronization Message Setup

EDEVICE NO. box

Specifies the MMC device number (1–127) that the AW2400 will receive.

NOTE

The MMC device number is an identifying number used to distin- guish devices that transmit and receive MMC commands. When using MMC, the AW2400 and the external MIDI device must be set to the same MMC device number.

When transmitting MMC data from the AW2400, the MMC device number is always set to “128” (allowing control of all MMC-com- patible devices).

FMTC field

Specifies how the AW2400 operates when synchronized with an external MIDI device using MTC (MIDI Time Code).

GMTC MASTER button

When this button is on the AW2400 functions as MTC master. Turn this button on when you want external equip- ment to synchronize to the AW2400.

HMTC SLAVE button

When this button is turned on the AW2400 functions as MTC slave, and will follow MTC received via the MIDI IN connector (or USB connector or digital I/O card input port). Turn this button on when you want to synchronize two AW2400 units, or synchronize the AW2400 to an external device that can only function in MTC master mode.

ISYNC AVERAGE box

Select one of the following to specify how closely the AW2400 will follow the incoming MTC data when func- tioning as an MTC slave.

0 ............. The AW2400 will synchronize to the incoming MTC data with the highest precision. If the incoming MTC has significant instability, syn- chronization may be interrupted or become unreliable with this setting.

1 ............. This setting provides more tolerance to MTC instability than the OFF setting.

2 ............. This setting allows the maximum tolerance. Use this setting if the MTC master is an exter- nal MIDI device that has significant instability.

HINT

If the accuracy of the incoming MTC becomes unstable when the AW2400 is functioning as an MTC slave and is synchronized to an external MIDI device, the AW2400 will make slight adjustments in playback pitch in an attempt to maintain synchronization. The SYNC AVERAGE parameter specifies the range of MTC variance that will be tolerated.

JOFFSET

When using the AW2400 as an MTC slave, this parameter shifts the absolute time of the AW2400 forward or back- ward relative to the incoming MTC. The range is -24:00:00:00.00 to +24:00:00:00.00.

OFFSET = 00:00:00:00.00

Incoming time

00:00:10:00.00

00:00:15:00.00

00:00:20:00.00

code

 

 

 

Time code

00:00:10:00.00

00:00:15:00.00

00:00:20:00.00

 

display (ABS)

Song

OFFSET = +00:00:05:00.00

Incoming time

00:00:10:00.00

00:00:15:00.00

00:00:20:00.00

code

 

 

 

Time code

00:00:15:00.00

00:00:20:00.00

00:00:25:00.00

 

display (ABS)

Song

OFFSET = 00:00:05:00.00

Incoming time

00:00:10:00.00

00:00:15:00.00

00:00:20:00.00

code

 

 

 

Time code

00:00:05:00.00

00:00:10:00.00

00:00:15:00.00

display (ABS)

 

 

 

Song

HINT

The OFFSET setting has no effect on MTC output via the MIDI OUT/THRU connector (or USB connector or digital I/O card output port).

KSYNC OUT field

Selects the type of MIDI message to be used for synchro- nization.

OFF button ........Engage this button (it will appear inverted) to disable transmission of MIDI synchronization messages.

MTC button ....... When this button is ON MTC will be transmitted while the recorder is run- ning.

MIDI CLOCK Button

...............When this button is ON the MIDI clock

will be transmitted while the recorder is running. Also, appropriate START, STOP, CONTINUE and SONG POSI- TION messages will be transmitted when the transport is operated.

HINT

MIDI clock operation is based on the tempo specified in the Tempo Map (refer to page 175 for Tempo Map setup details).

20

MIDI

AW2400 Owner’s Manual

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Yamaha AW2400 owner manual Offset, 199