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Windows Vista builds on the Universal Audio Architecture, a new class driver definition that aims to reduce the need for third-party drivers, and to increase the overall stability and reliability of audio in Windows. Support for Intel High Definition Audio devices (which replaces Intel's previous AC'97 audio hardware standard)
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.
Starting from Vista, new Real-Time Audio (RT Audio, not to be confused with the RTAudio codec) protocol is introduced, based on a single circular buffer. RT Audio protocol is implemented by WaveRT port driver in portcls.sys. In Vista and later versions, Audio Subsystem supports both protocols so it can interact with both legacy and new audio ...
Sound Recorder in Windows Vista can no longer open audio files. Moreover, it cannot save in lossless (uncompressed) WAV format when run without using any switches; instead, it saves in lossy 96 kbit/s WMA format. Only the version of Sound Recorder from the N editions of Windows Vista saves audio in WAV format by default. [133]
Intel started shipping the initial I/O Controller Hub support in 1999, and it wasn't until public shaming [1] in 2000, that most PC OEMs started shipping AC'97 audio as the default. In 2004, Intel released Intel High Definition Audio (HD Audio) which is a successor that is not backward compatible with AC'97. [ 2 ]
Windows Vista Starter is licensed to run only on PCs with AMD's Athlon XP, Duron, Sempron and Geode processors, Intel's Celeron, Pentium III processors, and certain models of Pentium 4. Windows Vista Starter can be installed from optical media including those belonging to other editions of the operating system. [16]
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.