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- OPTi 82c93x Windows NT Audio Driver LATEST INFORMATION
- (Version 1.04)
- 12/05/96
-
-
- This is the OPTi 82c930, 82c931 audio driver release for Windows NT
- version 3.51/4.00. Throughout this readme file, 82c93x refers to
- 82c930, and 82c931 (LC, AD, and MB versions).
-
- This Windows NT driver provides the following support for OPTi 82c93x-
- based sound card:
- Wave playback/capture
- Midi playback
- MPU-401 Playback/Record
- Mic recording
- Volume control
- Driver installation/configuration
- IDE CD-ROM support (Not for 931 AD versions)
- Gameport control
-
- 0. What is new in this release
-
- This release has the following changes from v1.03:
- - Default WSS Audio to IRQ 5 instead of 11.
- - Default WSS DMA out to 1 and DMA in to 0 (full Duplex enable)
- - Default MPU 401 port address to 330 instead of 300.
- - Dialog box will not show Single Mode DMA option
- - Microphone volume out value default to 0 to prevent feedback to Speaker.
-
- The following are features and supports in v1.03 that are changed from
- the previous release v1.01,
- - 931 LC support
- - MPU-401 support
- - Full Duplex DMA support
- - 16 bit DMA Channels Support (931 MB/LC only)
- - Gameport ON/OFF control
- - New Configuration dialog
- - New MIDIMAP.CFG
-
-
- 1. SOFTWARE PACKAGE CONTENTS
-
- The OPTi 82c93x Windows NT Audio Driver installation package contains
- the following files:
-
- OEMSETUP.INF - Windows NT driver installation text file
- SND93x.DLL - Windows NT user mode driver for OPTi 82c93x.
- SND93x.SYS - Windows NT kernel mode driver for OPTi 82c93x.
- SND3INIT.SYS - Windows NT kernel mode driver for setting OPTi
- 82c93x on-board IDE CD-ROM interface.
- MIDIMAP.CFG - Midi Mapper for OPTi93x.
- README.NT - This help file.
-
-
- 2. INSTALLATION PROCESS
-
- The installation process assumes that Windows NT has been installed.
- Refer to documents for Windows NT installation.
-
- Step 1:
- Insert OPTi 82c93x sound card in the system. Refer to your menu for
- proper sound card hardware installation.
-
- Step 2:
- Logged on Windows NT in Administrator mode. Windows NT audio
- driver can't be installed or modified unless Windows NT is started
- in Adminstrator mode.
-
- Step 3:
- For Windows NT v3.51:
- Choose Drivers icon from Control Panel.
- Remove all of the following previously installed audio drivers:
- Windows Sound System
- OPTi 82c930
- OPTi 82c93x
- Restart system.
-
- For Windows NT v4.00:
- Choose Multimedia from Control Panel.
- Click on Devices tab.
- Click on Audio Devices.
- Remove all of the following previously installed audio drivers:
- Audio for Windows Sound System
- Audio for OPTi 82c930
- Audio for OPTi 82c930, 82c93x
- Restart system.
-
- Step 4:
- For Windows NT v3.51:
- Start Windows NT in Administrator mode.
- Choose Drivers icon from Control Panel.
- Click the Add button in Drivers dialog box.
- Select "Unlisted or Updated Driver" and click the OK button.
- Insert the OPTi 82c93x Windows NT installation diskette in
- floppy drive and click the OK button.
- Click the OK button in the "Add Unlisted or Updated Driver" box.
-
- For Windows NT v4.00:
- Start Windows NT in Administrator mode.
- Choose Multimedia from Control Panel.
- Click on Devices tab.
- Click the Add Button.
- Select "Unlisted or Updated Driver" and click the OK button.
- Insert the OPTi 82c93x Windows NT installation diskette in
- floppy drive and click the OK button.
- Click the OK button in the "Add Unlisted or Updated Driver" box.
-
- Step 5:
- A setup dialog box will appear.
-
- Configure the Audio, MPU-401, Gameport, CD-ROM, and advanced options.
- Choose the CD-ROM Interface Settings for selecting whether to enable
- or disable the on-board IDE CD-ROM interface. Please note OPTi 931
- MB/LC version has no IDE CD-ROM support.
-
- Choose the OK button to accept the settings.
-
- Step 6:
- Choose the Restart Now button to have the new driver and any changed
- driver settings to take effect when Windows NT restart.
-
-
- 3. CHANGING DRIVER SETTINGS AFTER INSTALLATION
-
- Driver settings can be changed after installation.
-
- Step 1:
- Logged on Windows NT in Administrator mode.
-
- Step 2:
- For Windows NT v3.51:
- Choose Drivers icon from Control Panel.
- Select OPTi 82c93x in Installed Drivers Dialog box.
- Click the Setup button.
-
- For Windows NT v4.00:
- Choose Multimedia from Control Panel.
- Click on Devices tab.
- Click on Audio Devices.
- Click on Audio for OPTi 82c930, 82c93x.
- Click the Settings button.
-
- Follows Step 5 and 6 of INSTALLATION PROCESS above.
-
-
- 4. INSTALLATION DETAILS
-
- The Windows NT driver installation does the following:
-
- - Copy files to your hard disk.
- SND93x.SYS, SND93x.DLL, SND3INIT.SYS, MIDIMAP.CFG and
- README.NT are copied to the NT system directories.
- - Create/Update configuration information in the registry
- The following two Keys are created in the registry under
- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services path:
- snd93x
- snd3init
- - Reboot system.
-
- 5. CD-ROM INSTALLATION NOTES
-
- Please note that OPTi 82c931 MB/LC versions have no IDE CD-ROM support.
- OPTi 82c931 AD version has IDE CD-ROM support.
-
- The CD-ROM Interface Settings in driver setup provides the choice of
- enable or disable the 82c93x on board IDE CD-ROM interface (Default to
- disabled). It DOESN'T install the NT IDE CD-ROM driver.
- It's your responsibility to install the NT IDE-CD ROM driver.
-
- To install an IDE CD-ROM drive that is connected to 82c93x:
-
- - Make sure there is no secondary IDE port that is enabled on
- your system motherboard or another add-on card.
- - Choose "Enable IDE CD-ROM Interface" check box. This instructs the
- kernel mode driver sndinit.sys to enable the 82c93x on board
- secondary IDE port 170h and IRQ15 upon NT boot time.
- - To install the Windows NT IDE CD-ROM driver (ATAPI.SYS), please refer
- to the Windows NT System Guide.
-
- 6. FULL DUPLEX DMA SUPPORT
- Click on "Enable Full Duplex" check box and select the DMA Playback
- and record channels to enable simultaneous Playback and Capture on
- different DMA channels.
-
- Full Duplex DMA on 82c930 and 82c931 only supports playback and capture
- of the wave audio with same audio format. For example, a PCM 22.050 kHz,
- 8 bit, Mono wave audio stream is allowed to record to a a PCM 22.050 kHz,
- 8 bit, Mono wave audio stream not any other audio format.
-
- 7. 16-bit DMA SUPPORT
- 16-bit DMA is supported only in 931 LC or MB versions.
-
- DMA channels 5 and 6 are both 16-bit DMA channels.
- Both Playback and Capture DMA channels can be configured using
- these 16-bit DMA channels.
-
- 8. MPU-401 SUPPORT
- Click on "Enable MPU-401" check box and configure MPU-401 I/O and IRQ.
-
- To select between "OPTi FM" and "OPTi MPU-401" for MIDI files.
- For Windows NT v3.51:
- Use Midimapper from Control Panel
- For Windows NT v4.00:
- Use MIDI tab in Multimedia from Control Panel
-
- 9. MIXER CONTROL
- - Before changing driver settings from Control Panel, be sure to close
- the audio Mixer Volume Control.
- - For 82c930: Midi mixer line controls both FM Synthesizer and MPU-401 volume.
- For 82c931: Midi mixer line controls FM Synthesizer
- Wavetable/MPU-401 line controls MPU-401 volume.
-