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Intel High Definition Audio - OSDev Wiki
https://wiki.osdev.org/Intel_High_Definition_Audio
Intel High Definition Audio refers to the specification released by Intel for delivering high-definition audio that is capable of playing back more channels at higher quality than previous integrated audio codecs like AC97 . Contents [ hide ] 1 Identifying HDA on a machine 2 Overview 3 Device Registers 4 CODECs and Nodes 5 Node Commands
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