IDT High-Definition (HD) Audio Driver. This package contains the driver that enables the IDT High-Definition (HD) Audio in supported notebook models that are running a supported operating system. Date: 2013-10-11 | Size: 37.66M | Tag: Driver-Audio | Category: Sound Version:6.10.6492.0. OS: Windows 8 64 bit. Intel High-Definition (HD) Graphics Driver. This package provides the driver that enables the Intel High-Definition (HD) Graphics in supported notebook models that are running a supported operating system. If high-definition multimedia interface (HDMI) video output is supported, this package also installs the HDMI Audio Driver.