![]() This revision provides means for the audio codec to supply parametric data about its analog interface much like Intel High Definition Audio. AC'97 2.3 compliant indicates extended configuration information and optional jack sensing supportĪC'97 revision 2.3 enables Plug and Play for the end user.AC'97 2.2 compliant indicates extended audio, enhanced riser audio support, and optional Sony/Philips Digital Interface Format.AC'97 2.1 compliant indicates extended audio feature set (optional variable rate, multichannel, etc.).AC'97 1.x compliant indicates fixed 48 kHz sampling rate operation (non-extended feature set).Further details may exist on the talk page. Please expand the section to include this information. This section is missing information about revision dates (which year). HD Audio has the capability to define up to 15 output channels, but in practice most motherboards provide no more than 8 channels ( 7.1 surround sound). In 2004, Intel released Intel High Definition Audio (HD Audio) which is a successor that is not backward compatible with AC'97. Intel started shipping the initial I/O Controller Hub support in 1999, and it wasn't until public shaming in 2000, that most PC OEMs started shipping AC'97 audio as the default. The first shipping system was in the Cyrix MediaGX, in 1997. Integrated audio is implemented with the AC'97 Codec on the motherboard, a communications and networking riser card, or an audio/modem riser card. AC'97 supports a 96 kHz sampling rate at 24-bit stereo resolution and a 48 kHz sampling rate at 24-bit stereo resolution for multichannel recording and playback. an AC'97 audio and/or modem codec, available from several vendors, which contains the analog components of the architecture.ĪC'97 defines a high-quality, 16- or 24- bit audio architecture with 5.1 surround sound support for the PC.an AC'97 digital controller (DC97), which is typically built into the southbridge of the chipset, and. ![]() The specification covers two types of components, and the AC-Link digital interface between them: The standard was used in motherboards, modems, and sound cards.
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