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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.
DSP, [134] combined sound and graphics processor, ADPCM, MP3 support [135] [136] [137] Sharp Corporation: Sharp SM8521 1997 1 8 32,768 Game.com handheld Sony: Sony SPC700 (Nintendo S-SMP) 1990 8 16 32,000 Super Nintendo Entertainment System console Bit Rate Reduction (BRR) ADPCM [138] [139] Sony SPU (Sound Processing Unit) 1994 24 16 44,100 ...
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.
A digital signal processor (DSP) is a specialized microprocessor chip, with its architecture optimized for the operational needs of digital signal processing. [ 1 ] : 104–107 [ 2 ] DSPs are fabricated on metal–oxide–semiconductor (MOS) integrated circuit chips.
MIPS Digital Signal Processing (DSP) The DSP ASE is an optional extension to the MIPS32/MIPS64 Release 2 and newer instruction sets which can be used to accelerate a large range of "media" computations—particularly audio and video.
In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore. It typically occurs to signal attention for non-recoverable hardware errors.
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 ]
Linear pulse-code modulation (LPCM, generally only described as PCM) is the format for uncompressed audio in media files and it is also the standard for CD-DA; note that in computers, LPCM is usually stored in container formats such as WAV, AIFF, or AU, or as raw audio format, although not technically necessary.