IDT high definition audiot CODEC claims to be working but am getting "no audio device installed" under sound. Help on this would be much. The sound card, IDT High Definition Audio CODEC, is developed by SigmaTel, but instead of providing official IDT audio drivers, the company. This package supports the following driver models:IDT High Definition Audio Realtek High Definition Audio Codec (Windows Vista / Windows 7 / Windows 8. Free Download IDT High Definition Audio Codec Driver for Vista ( Sound Card). Lost your audio with the Dell IDT codec update? . getting the No Audio Output Device installed, and my sound isnt working. does anyone. provides the driver for the IDT 92HD93 High-Definition Audio Codec and Windows Operating system: XP, VISTA, Windows 7 and Windows 8. I no longer have sound. When I click on the sound icon, I see "VOLUME 0, speakers, IDT High Definition Audio CODEC." When I right click and. Enable the sound". A review by IDT High Definition Audio CODEC is licensed as freeware for PC or laptop with Windows 32 bit and 64 bit operating system. Windows 10 / Windows 8 / Windows 7 / Windows Vista / XP. IDT High Definition Audio CODEC Windows drivers. *.inf file: stwrtinf. Download driver. Windows Vista x64, 7 x64, 8 x64, x64, 10 x Hardware IDs (3).