Intel High Definition Audio

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Intel High Definition Audio (IHD or "Azalia") refers to the specification released by Intel in 2004 for delivering high-definition audio that is capable of playing back more channels at higher quality than previous integrated audio codecs like AC97.

Hardware based on Intel HD Audio specifications is capable of delivering 192 kHz/32 bit quality for two and 96 kHz/32 bit for up to eight channels.

Microsoft's Windows Vista operating system includes a Universal Audio Architecture class driver which supports audio devices built to the IHD specification.

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