The board DG965PZ, DQ965GF and DG965MS etc use the Intel Audio Studio. I have checked on the download page, unfortunately, there is no Intel Audio Studio on the download page.
Intel® Desktop Board D925XCV
Intel® Desktop Board D925XBC
Intel® Desktop Board D915PBL are supposed to have Intel Audio Studio, again i could not find it on the download page.
So i think it is obsolete now. :-(
Make sure if you decide to go for the new driver and software IDT package, read the release notes before installing the software.
From the release notes:
NOTE: Intel Audio Studio Users
If your system supports Intel Audio Studio and you currently have it installed on you system; please not that this is an
IDT GUI driver package only and does not include or support Intel Audio Studio.
If you would like to proceed:
First you must remove IAS by un-installing the SigmaTel/IDT driver package
1. Go to Control Panel
2. Select Add/Remove programs – WinXP or Select Programs and Features – Vista
3. Double click on the SigmaTel/IDT Audio driver in the list and uninstall
4. Re-boot your system.
To install the updated IDT driver package, Run setup.exe in the IDT driver folder.
To restore to your previous driver; repeat the steps 1-5 above; then re-install the original driver.
Hope someone else can help you further on this one and give you some more light on this one.