Yamaha owner manual Controlling the MD4S by MMC, Switching MMC reception on/off

98 Advanced recording techniques

Controlling the MD4S by MMC

MMC (MIDI Machine Control) is a type of MIDI message that allows the transport of an audio/video recorder etc. to be controlled by an external MIDI device. Since the MD4S is able to receive MMC, an MMC-compatible MIDI sequencer or other device can control the trans- port of the MD4S. In this case, the device that transmits MMC data will be the MMC Master, and the device that receives MMC data will be the MMC Slave.

The MD4S supports the following MMC messages.

Function	MMC#	MD4S operation
		If this command is received during recording,
Stop	Command 01	rehearsal, or playback etc., that operation will be
		halted.
		When this command is received, playback will
Playback	Command 02, 03	begin. If this command is received during record-
		ing or rehearsal, that operation will be halted.
		Skip to the next song. If this command is received
Fast-forward	Command 04	during recording or rehearsal, that operation will
		be halted.
		Skip to the previous song. If this command is
Rewind	Command 05	received during recording or rehearsal, that opera-
		tion will be halted.
		If this command is received when stopped, record-
Record Strobe	Command 06	ing will begin. If this command is received during
		playback, punch-in will be performed. If received
		while paused, this command will be ignored.
End Record	Command 07	Record mode will be turned off.
Paus	Command 09	Enter pause mode. If received during record or
		rehearsal, stop.
MMC Reset	Command 0D	Reset MMC data to the initial settings (the condi-
		tion at power-on).
Write	Command 40	Write data to the specified data field.
Locate	Command 44	Locate to the specified time code location.
Record Mode	Data field 4C	Switch between REHE and REC.
Track Record Ready	Data field 4F	Select the track to be recorded by “Record
		Strobe.”

■Switching MMC reception on/off

You can specify whether or not the MD4S will receive MMC.

1.Press the UTILITY button, rotate the DATA dial to make the display read “MMC Receive,” and press the ENTER button.

The display will indicate the current MMC reception setting. With the factory settings this is off, and the display will indicate “MMC Rx OFF.”

2.Rotate the DATA dial to switch the setting “ON” or “OFF.”

When this is “ON,” MMC can be received.

3.Press the ENTER button to confirm the setting.

—Owner’s Manual