------------------------------------------------------------------- Creative Audio Card Readme File January 2001 ------------------------------------------------------------------- This document provides late-breaking or other information that supplements the Creative Audio Card documentation. -------- CONTENTS -------- 1. AUDIO CARD CONFIGURATION 1.1 Changing the Interrupt Request (IRQ) Setting 2. NOTES FOR WINDOWS 2000 / WINDOWS MILLENNIUM EDITION USERS 2.1 AC3 Passthrough Support in Windows Millennium Edition 2.2 No Support for CDDA in Windows Millennium Edition 3. LIMITATIONS 3.1 Limitation of Recording Operation for Digital Audio Output =================================================================== 1. AUDIO CARD CONFIGURATION ------------------------ 1.1 Changing the Interrupt Request (IRQ) Setting If you want to change an IRQ setting for your PCI card, it is best to do so from the BIOS setup screen. Reason: PCI cards are configured differently from ISA cards; unlike ISA cards, it is usually not possible to change the IRQ for a PCI card from the operating system. ----------------------------------------------------------- CAUTION: Do not change the BIOS settings unnecessarily unless you know what you are doing, because meddling with the BIOS settings may hang the system or slow down the system performance. Record all BIOS settings before making any changes to ensure that you can return to your original settings. ----------------------------------------------------------- To access the BIOS setup screen: At system startup, press the key or key combination (usually the DELETE or ESC key) as required by your motherboard. NOTE: For detailed information about accessing your BIOS and explanations about your BIOS settings, refer to your motherboard manual. The IRQ resource is typically found in the PNP/PCI Configuration Setup section in the BIOS settings. Under this section, there is an option to assign PCI slots to "Auto" or "Manual" to set an IRQ. This option is usually named "Resources Controlled By" or "PNP/PCI BIOS Auto-Config". To change an IRQ, you need to set this option to "Manual" or "Disabled". Some BIOS only allow you to define which IRQs to disable and will in turn assign another available IRQ automatically, while some BIOS allow you to select the IRQs to be used for a particular PCI slot. For example, with a certain type of BIOS: To change the IRQ setting for your PCI card from the current IRQ 11: 1) At the "Resource Controlled By" option, switch to "Manual". 2) Change the setting in the "IRQ 11" option to "Legacy ISA". This means that the BIOS will assign an available IRQ other than IRQ 11 to the PCI audio card. 3) Save these new settings and exit the BIOS. Another example on a different type of BIOS: a) Your PCI audio card is plugged into PCI slot 1 b) Your PCI video card is plugged into PCI slot 3 c) Both cards are using IRQ 11 To change the IRQ setting for your PCI audio card from the current IRQ 11: 1) At the "BIOS Auto-Config" option, switch to "Disabled". 2) Change the IRQ setting for PCI slot 1 to another available interrupt. 3) Save these new settings and exit the BIOS. NOTE: For more information on BIOS settings or PCI slot 1 location, refer to your motherboard manual. 2. NOTES FOR WINDOWS 2000 / WINDOWS MILLENNIUM EDITION USERS --------------------------------------------------------- 2.1 AC3 Passthrough Support in Windows Millennium Edition There is AC3 passthrough support in Windows Millennium Edition but not in Windows 2000. AC3 passthrough support is only available for cards with digital audio output. 2.2 No support for CDDA in Windows Millennium Edition If you encounter audio distortion while performing playback and recording simultaneously, disable CDDA to fix this problem. Perform the following steps to disable CDDA in Windows Millennium Edition from Device Manager tabbed page and Windows Media Player: Device Manager tabbed page -------------------------- 1) Click Start -> Settings -> Control Panel. 2) In Control Panel, double-click the System icon. 3) On the Device Manager tabbed page, double-click the CDROM icon and select the CDROM device from the list. 4) Click the Properties button. 5) On the Properties tabbed page, under Digital CD Playback, clear the Enable digital CD audio for this CD-ROM device check box. Windows Media Player -------------------- 1) Start Windows Media Player. 2) On the menu, click Tools -> Options. 3) On the CD Audio tabbed page, under Playback Settings, clear the Digital Playback check box. 4) Click the OK or Apply button. 3. LIMITATIONS ----------- 3.1 Limitation of Recording Operation for Digital Audio Output For digital audio output, there will be an increase in the playback volume to maximum when "Mixed Output" is not selected as the recording source. This problem is due to a hardware limitation. Copyright (c) 2001 Creative Technology Ltd. All rights reserved. ------------------------------------------------------------------- End of Readme File -------------------------------------------------------------------Download Driver Pack
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