Shuttle HOT-245 User manual

16-Bit PnP Sound Pro 1
HOT-245
Spacewalker Sound System PnP
16-BitStereo
(OPTi 931)

NOTICE
Copyright 1996.
All right reserved
Manual Ver 245_1.0
All information, documentation, and specifications contained in this manual are subject to change
without prior notification by the manufacturer.
The author assumes no responsibility for any errors or omissions which may appear in this document nor
does it make a commitment to update the information contained herein.
TRADEMARKS
Ad-Lib is a registered trademark of Ad-Lib Inc.
IBM PC/AT, PS/2 are registered trademarks of International Business Machines Corp.
Media Rack is registered trademark of Willow Pond Corp.
MPU-401 is registered trademark of Roland Corp.
MS-DOS, Windows 3.1 and Windows Sound System are registered trademarks of Microsoft Corp.
OPTi is registered trademark of OPTi Inc.
Sound Blaster, Sound Blaster Pro are registered trademarks of Creative Labs, Inc.
Yamaha OPL3 and OPL4 are registered trademarks of Yamaha Corp.
All other product names are for identification only and are trademarks of their respective companies.
FCC Notice:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of FCC
Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used properly. In strict
accordance with the manufacturer’s instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference
to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to
try to correct the interference by one or more of the following measures :
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/television technician
for help and for additional suggestions.
The user may find the following booklet prepared by the Federal Communications Commission helpful “How to Identify
and Resolve Radio-TV Interference Problems.” This booklet is available from the U.S. Government Printing Office. Wash-
ington, DC 20402, Stock o. 004-000-00345-4
FCCWarning
The user is cautioned that changes or modifications not expressly approved by the manufacturer could void the user’s
authority to operate this equipment.
Note : In order for an installation of this product to maintain compliance with the limits for a Class B device, shielded
cables and power cord must be used.
CE Notice:
Following standards were applied to this product, in order to achieve compliance
with the electromagnetic compatibility:
- Immunity in accordance with EN 50082-1: 1992
- Emmitions in accordance with EN 55022: 1987 Class B.

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Table of Contents
Introduction ........................................................................... 4
Features.............................................................................................................................4
What is in your package?..............................................................................................4
System Requirements.....................................................................................................5
Hardware Installation ........................................................... 6
Default Configuration....................................................................................................6
Installing the OPTi931.................................................................................................6
Connecting External Devices.......................................................................................6
OPTi931 Card Layout & Devices connect...............................................................7
Windows 3.1/DOS Software Installation ............................. 8
Device Driver Installation............................................................................................8
Windows 3.1 Configuration.......................................................................................11
Windows 3.1 Application...........................................................................................14
DOS Configuration and Utilities...............................................................................15
Notes on Software Installation.................................................................................17
Windows 95 Software Installation ...................................... 18
Windows 95 Mode.......................................................................................................18
Real Mode DOS.............................................................................................................19
931 Audio Uninstall....................................................................................................21
Media Rack Installation ..................................................... 22
Media Rack Installation under Windows 3.1x.......................................................22
Media Rack Installation under Windows 95...........................................................23
Media Rack Overview.................................................................................................24
Media Rack Components...........................................................................................24
The Alarm Clock.........................................................................................................25
MIDI Player, Wave Player, and CD Player's Buttons.........................................26
System Mixer................................................................................................................26

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Introduction
The OPTi931 is a 16-bit stereo sound card based on the OPTi 82C931 Plug-and -Play
integrated Audio controller chip.The OPTi931 is compatible with the Sound Blaster
TM
and Sound Blaster Pro
TM, as well as Windows Sound System TM, MPU-401 and Ad Lib TM.
The OPTi931 sound card also has multiple input and output ports for recording and
playback of stereo sound.
Features
The OPTi931 is a full-featured sound card which include the following:
ISA Plug-and-Play (PnP)— Support the Plug and Play Specification 1.0a which allows the
system to automatically detect and configure devices that confirm to the standard. This
eliminates the user having to know and configure the correct IRQ, DMA, and I/O channel
settings.
Wave Audio — Maximum recording and playback sampling rate of up to 48 kHz
stereo.
16-bit digital-to-analog and analog-to-digital converter— 16-bit and 8-bit digitizing
in stereo and mono mode.
22-Voice FM Music Synthesizer— Built-in high quality 22 voice, 52 operator,
OPTiFM music synthesizer with enhanced bass.
Full duplex operation — Record and playback simultaneously using two 8- or 16-bit
DMA channels.
Digital/Analog Mixer — Mix analog stereo from CD-audio, Line-In, FM music &
Digitized voice sources. Digital stereo mixing from Microphone, Line-in, CD-audio
and Line-out.
Built-in Stereo Amplifier — About 2-watt per channel stereo amplifier.
MIDI Interface/Joystick Port— Built-in integrated MIDIMPU-401 interface with FIFO,
IBM PC joystick/game port.
Other Interfaces — Wave-table synthesizer interfaces, Speaker Out, Line In, and
Microphone In.

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What is in your package?
You should have the following items in your package:
OPTi931 Sound Card
OPTi931 DOS/Windows 3.X/Windows 95 Driver Installation Diskette
Media Rack Diskette
OPTi931 User Manual
System Requirements
The OPTi931 is manufactured for IBM PC compatible computers, software, and related
computer components :
IBM-compatible computers modules AT, 286, 386, 486, Pentium, PS/2 (model 25/30)
and compatibles (486 for Windows 95)
At least 2MB RAM (4MB RAM for Windows 3.1 applications, 8MB for Windows 95)
VGA or SVGA graphics adapter and monitor
2MB free on hard disk for installing all OPTi931 software
MS DOS or PC DOS 3.1 or later, MS Windows 3.1 and Windows 95
Windows 3.1 for games and applications in Windows
External speakers, microphone or headphones (optional)

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Hardware Installation
The hardware installation of the OPTi931 is easy and can be performed in just a few
steps. The OPTi931 has no switches. The OPTi931 installation program configures all of
the settings.
Default Configuration
The OPTi931 supports both Sound Blaster Pro and Windows Sound System applications.
The OPTi931 defaults to Sound Blaster Pro mode when the system is booted up in DOS.
It switches to Windows Sound System mode when Windows 3.1 is launched. The
default configuration of a system that supports the Plug and Play 1.0a specification will
depend on the available system resources.
If your system is not PnP compatible the default configuration is as follows :
Operation Mode Sound Blaster Pro Compatible
IRQ 5
DMA Channel 1
I/O Port Address 220h
Installing the OPTi931
To install the board :
1With your computer system's power off, remove the cover, find a empty 16-bit
expansion slot, and remove the metal bracket.
2Insert the OPTi931 into the expansion slot firmly and evenly. Take care not to force
it into the slot. Once you have properly positioned the OPTi931 into the slot,
secure the OPTi931 with the bracket screw.
3Replace the cover of the computer.
4Connect your speaker or headphones to the external output connections on the
OPTi931 bracket.
Connecting External Devices
The OPTi931 provides a number of ways for you to connect external devices to it, such
as headphones, microphones and speakers. The OPTi931 supports the following
external devices :
Speakers Headphones
Power amplifier Microphones
Joystick MIDI Adapter
Please have the user reference manuals of the external devices on hand for reference.

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OPTi931 Card Layout & Devices Connect
Speaker Out: to
amplified speakers
Line In: to
CD-ROM Audio or
other line-out devices
Microphone In: to
microphone
Joystick/MIDI: to
game paddle,
joystick, or MIDI
devices

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Windows 3.1/DOS Software Installation
The OPTi931 installation program (SETUP.EXE) will install all of the Windows 3.1 and
DOS software drivers and application needed to achieve both Sound Blaster Pro and
Windows Sound System compatible operation.
Device Driver Installation
The following steps will guide you through the full software installation and configuration
for the OPTi931. We recommend that you read through them now, and become familiar
with them before installing the software.
1Insert the OPTi931 drivers and utilities disk in your floppy drive.
2Entering Windows and selectFile and Run.
3Type a:\setup and click OK as shown.
4The OPTi931 menu driven installation program will copy the installation files to
your hard drive.
5After the install files are copied, the installation program will start.
It is strongly recommended that you exit all Windows programs before running this
Setup Program.

16-Bit PnP Sound Pro 9
Click Cancel to quit and then close any programs you have running. ClickNext to
continue with the Setup program.
6The next screen lets you select a directory to install the software. The default is
82C931.
7If you don't want to install the files in this directory, click onBrowse to change it.
You will see the following screen.
8From here, either select a directory that exists or type in the name of a new
directory. If you type in a new directory you will be asked: ChooseYes.
9Select Next to continue the installation. The install program will be begin copying
the files to the directory you selected.

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10 When it has finished you will be asked if you wish to view the README file. It is
recommended that you select yes because this file will have the latest information
available about this sound card.
11 This concludes the installation and the program will prompt you to REBOOT your
system, be sure to selectOK and then press Ctr-Alt-Del when prompted. This will
insure that the OPTi931 is properly configured.
The software installation will then be completed and a new product group will be
visible in Windows. The utilities in this group allow you to reconfigure the settings
of the card and configure the audio mixer and karaoke features. Refer to the next
section for more information.

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Windows 3.1 Configuration
The OPTi931 Driver Setup menu allows you to change the settings for the OPTi Audio
Driver in Windows 3.1. To access this menu, perform the following steps.
1Double click theMain program group.
2Double click theControl Panel icon.
3Double click theDrivers icon.
4Highlight the OPTi82C931 Audio Driver and chooseSetup.
This will display all of the configuration settings for the sound card.

16-Bit PnP Sound Pro 12
Audio Configuration
The Audio Configuration section allows you to set the I/O address (for both Sound Blaster
and Windows Sound System configurations), IRQ settings, DMA Channels, and Full
Duplex. To change any of these settings click on the arrow next to the selection and use
the scroll bars to choose another settings.
Possible settings are :
MPU-401 Configuration
This enables the MPU-401 interface and selects the I/O Address and IRQ settings.
Possible selection are :
Option
SB I/O
WSS I/O
IRQ
DMA Playback Channel
Recording DMA
Default
220h
534h
5
1
0
Other Settings
240h
608h, E84h, F44h
7, 9, 10, 11
0, 3, 5, 6
1, 3, 5, 6
I/O Address
300h
310h
320h
330h
340h
350h
360h
IRQ
Disabled
5
7
2/9
10
11

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Additional Options
This allows you to set up the joystick and modem options.
Advanced Settings
Another selection on configuration menu is advanced settings. If you wish to modify the
advance settings, click onAdvance Settings and the following will appear.
Make the necessary changes as described below and clickOK.
Boots for Microphone Recording
Enables you to enable a 20dB boost to the record level for the microphone input
(MIC IN). This allows you to compensate for less powerful microphones and
increase the record signal.
Use Single Mode DMA
Your computer system may support both Single Mode DMA as well as Demand
Mode DMA. Demand Mode DMA provides a more efficient means of transferring
chunks of data between memory and a device. However, If your system does not
support Demand Mode DMA, you must select Single Mode DMA instead.
DMA Buffer Size
Setting the DMA buffer size tells the CPU how much data to transfer between
memory and a device at one time. If you specify a large size, it allows the CPU to
complete the transfer of data faster but increases the memory consumption. The
default size should be 32 kilobytes(32K). If you decide to change the buffer size, be
sure to make it multiples of 4K.

16-Bit PnP Sound Pro 14
Windows 3.1 Application
After the installation is complete and you have to restart Windows 3.1, you will see a
new program group on your desktop.
Audio Mixer
The Audio Mixer applet lets you adjust the volume settings for each of the individual
audio sources.
KaraokeControl
The karaoke enables you to direct the microphone input directly to the speaker
output so that you can sing along with the CD audio or other audio sources.
Read Me Files
This will display an ASCII text file that contains all of the latest information on the
device drivers. If you did not read this file during the installation procedure, please
take a moment to do so now in case there is pertinent information.
931 Uninstall
Double clicking on this icon will remove the audio device drivers from Windows.

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DOS Configuration and Utilities
Once you have installed the sound drivers in Windows 3.1, there are three utilities that
are accessible from DOS if you wish to enable and use sound in any DOS based
application.
SNDINIT.EXE
The sound initialization program (SNDINIT.EXE) allows you to select many of the options
that are available in the Windows Configuration program.
You can run the SNDINIT.EXE program at anytime to make changes to your OPTi931
Sound card configuration. When re-configuring the OPTi931 Sound card, you can use
the following parameter lines:
SNDINIT /B Runs the program using the values specified in the SOUND16.CFG
configuration file.
SNDINIT /? Displays help on how to use SNDINIT.
SNDINIT Runs the program to let you change your OPTi931 configuration.
You will see the Configuration and Sound Test menu you used in the
installation program.

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Sound Device Settings Selection
Selection Settings
Current Mode Sound Blaster Pro, Windows Sound System
Sound Blaster Pro I/O Port 220, 240
Windows Sound System I/O Port 534, E84, F44, 608
IRQ 5, 7, 2/9, 10
Play DMA 0, 1, 3, 5, 6
Record DMA 0, 1, 3, 5, 6
MPU-401 Interface
Selection Settings
Select OFF, ON
I/O Port 300, 320, 330
IRQ OFF, 5, 7, 2/9
Additional Options
Selection Settings
Joystick Enabled, Disabled
Modem Disabled
At the bottom of the menu are three selections.
The Help option displays a help file that shows you how to navigates through the menus
and save information.
The Accept option loads the settings as the appear on the screen and exits the program.
The Mixer option displays the following screen:
This menu allows you to set the recording and playback levels for the audio mixer as well
as select the input sources for recording.
The volume level all range from 0 to 99 and can be changed by clicking on the up and
down arrows next to the level or by clicking on the gauge that shows the current level.
You can also turn on the mute to silence all audio level.
There is also a button that allows you to test the sound. Press this button and you will
here a sample wave sound. If it sound correct and the volume isOK, press Done to
return to the Configuration Menu.

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Notes on Software Installation
The notes below will provide a little more information concerning the OPTi931 Sound
Card installation software.
ReadtheREADME.TXTfile
We highly recommend that you read the README.TXT file at the beginning of the
installation program (this is also text file located in the 82C931 directory). It includes any
changes that might have taken place in the OPTi931 Sound Card installation process that
might not be included here.
ChangestoAUTOEXEC.BAT
The installation program will need add several lines to your AUTOEXEC.BAT file. You
can choose to have INSTALL make these changes for you immediately, or store the
changes in a separate file called AUTOEXEC.MAD so you can use your own text editor
and edit the system files and make the changes later.
Your path statement will have the C:\82C931 subdirectory added to it (with the PATH
%PATH%; C:\82C931 command). The following lines also will be added:
SET BLASTER=A220 I5 D1 T4
SET SOUND16=C:\OPTi931
C:\OPTi931\SNDINIT /B
C:\OPTi931\MIXER /B
These lines indicate default settings. Changes you made to the default path or OPTi931
Sound Card configuration will be reflected accordingly.

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Windows 95 Software Installation
Windows 95 Mode
The OPTi931 supports the Plug and Play Specification 1.0a which makes installation into
a Windows 95 system fast and easy.
Note: You must already have Windows 95 installed on your computer and running
properly before installing the hardware.
To install the OPTi931 into a systems that is running Windows 95 :
1Turn your computer on. The system will boot the Windows 95 operating system.
2The Windows 95 Plug-and-Play capabilities will detect the OPTi931 card and ask
you to install the driver. Select "Driver from disk provided by hardware manufac-
turer" and clickOK.
3Insert the driver diskette into the diskette drive (A or B) and clickOK.
4After Windows 95 restarts, it will detect the logical devices that are available and
you will see each device as it is found, first the Windows Sound System, then the
Game Port and Joystick, and finally the MPU-401.

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Real Mode DOS
After you have successfully installed the drivers for Windows 95 and the system has
booted correctly, you can install the drivers for audio applications that run in DOS mode.
To do this,
1Insert the device driver diskette into drive A (or B).
2From the Windows 95 desktop selectStart then Run.
3Type a:\setup and press Enter.
4The OPTi931 Sound Card menu driven installation program will copy the installa-
tion files to your hard drive.
5After the install files are copied, the installation program will start.
It is strongly recommended that you exit all Windows programs before running this
Setup Program.
Click Cancel to quit Setup and then close any programs you have running. Click
Next to continue with the Setup program.
6The next screen lets you select a directory to install the software. The default is
OPTi931.

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7If you don't want to install the files in this directory, click onBrowse to change it.
You will see the following screen.
8From here, either select a directory that exists or type in the name of a new
directory. If you type in a new directory you will be asked:
Choose Yes.
9Select Next to continue the installation. The install program will be begin copying
the files to the directory you selected.
10 When it has finished you will be asked if you wish to view the README file. It is
recommended that you select yes because this file will have the latest information
available about this sound card.
11 This concludes the installation and the program will prompt you to REBOOT your
system, be sure to selectOK and then press Ctr-Alt-Del when prompted. This will
insure that the OPTi931 Sound Card is properly configure.