Yamaha Sound Edge Owner's Manual download pdf (Page 20)

Sound Edge Setup

About the MIDI Interface for DOS

The Sound Edge MIDI Interface lets you use the internal AWM synthesizer to play the

sounds of GM compatible DOS games and sequencers.

When the Sound Edge software installation is done properly, the following lines will automatically be

added to CONFIG.SYS and AUTOEXEC.BAT:

To CONFIG.SYS: DEVICE=C:\YAMAHA\OPL4TSR.SYS (Device Driver on the DOS system)

To AUTOEXEC.BAT: SET_OPL4DRV=-I9 (Command option which assigns the IRQ number 9

to the Environment Variables)

* The symbol “_” indicates a space in a command.

£If the DOS games cannot run because of a memory shortage of the conventional memory in your computer,

relocate the Device Driver to the UMB/HMA(Upper Memory Block/High Memory Area) area. Change the line in the

CONFIG.SYS to the following and restart your computer.

DEVICEHIGH=C:\YAMAHA\OPL4TSR.SYS

Executing OPL4DRV.COM

1. Set the MIDI Port address of the DOS game to match the MIDI Port address of the sound card

DOS MIDI interface. The default is 330.

Also select [General MIDI] from the sound setup window of the DOS game.

£See page 67 for more information on the MIDI Port and IRQ.

£Depending on the external devices you use, the games may not run because of a conflict caused by

the MIDI Port and IRQ settings. If this happens, you must change the MIDI Port address and IRQ number to

the currently available address and number. See pages 5 and 6 for how to change the address and number.

Do not use the same IRQ number as the default for the sound card SB mode, IRQ number 5.

2. Start up the execute program by typing the following command on the DOS command line.

[KEY OPERATION]

CD_\YAMAHA + <ENTER>

OPL4DRV + <ENTER>

The following display appears.

The above procedure enables you to use the internal AWM synthesizer to play the sounds of GM

compatible DOS games and sequencers. The execute program remains effective until you turn

the power off.

£If you want to cancel the program, type the following line: OPL4DRV2 -R.

Turning the power off also cancels the program.

£If you intend to load the execute program in the UMB/HMA area and start up the execute program,

type the following command:

[KEY OPERATION]

CD_\YAMAHA + <ENTER>

LH_OPL4DRV + <ENTER>

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Yamaha Sound Edge Owner's Manual Page 20