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Intel High Definition Audio (IHDA) (also called HD Audio or development codename Azalia) is a specification for the audio sub-system of personal computers. It was released by Intel in 2004 as the successor to their AC'97 PC audio standard.
Three classes of audio devices are supported by default: USB, IEEE 1394 , and Intel High Definition Audio, which supports PCI and PCI Express. Starting with Windows Vista, Microsoft requires all computer and audio device manufacturers to support Universal Audio Architecture in order to pass Windows Logo certification.
The company worked on optimizing their free Linux drivers for performance approaching their Windows counterparts, especially on Sandy Bridge and newer hardware where performance optimizations have allowed the Intel driver to outperform their proprietary Windows drivers in certain tasks, in 2011.
During the 1990s, the partnership between Microsoft Windows and Intel, known as "Wintel", became instrumental in shaping the PC landscape [10] [11] and solidified Intel's position on the market. As a result, Intel invested heavily in new microprocessor designs in the mid to late 1990s, fostering the rapid growth of the computer industry .
Microsoft Windows uses drivers generally written by the sound card manufacturers. Many device manufacturers supply the drivers on their own discs or to Microsoft for inclusion on Windows installation disc. USB audio device class support is present from Windows 98 onwards. [31]
10.1 11.1 Windows 8+ FL10_1 3.1 Windows 3.3 macOS [25] 3.3 Linux ES 3.0 Linux: No 21.3 1720 No Desktop Celeron G4x0 Celeron G5x0 Celeron G530T Pentium G6xx Pentium G6x0T Pentium G8x0 650–1100 HD Graphics 2000: Desktop: Core i3-2102 Core i3-21x0 Core i3-21x0T Core i5-2xx0 Core i5-2x00S Core i5-2xx0T Core i7-2600 Core i7-2600S: 0102: 650–1350 ...
DirectSound is a deprecated software component of the Microsoft DirectX library for the Windows operating system, superseded by XAudio2.It provides a low-latency interface to sound card drivers written for Windows 95 through Windows XP and can handle the mixing and recording of multiple audio streams.
Selection is based on testing by Intel and preselected in the driver .inf file. Intel has released production version drivers for 32-bit and 64-bit Windows Vista that enable the Aero graphics. Intel introduced DirectX 10 for the X3100 and X3500 GPUs in the Vista 15.9 drivers in 2008, though any release of DX10 drivers for the X3000 is uncertain.