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AC'97 (Audio Codec '97; also MC'97 for Modem Codec '97) is an audio codec standard developed by Intel Architecture Labs and various codec manufacturers in 1997. The standard was used in motherboards , modems , and sound cards .
C-Media Electronics, Inc. (Chinese: 驊訊電子; pinyin: Huáxùn Diànzǐ) is a Taiwan computer hardware company that manufactures processors for PC audio and USB storage, and wireless audio devices. Many of their PCI audio solutions can be found in the Xonar sound cards developed by ASUS.
All of these features are available using Yamaha's VxD driver under Windows 9x/Me. WDM drivers for these operating systems and later Windows 2000/XP may lack important mixer controls, like separate Line-Out and 3D Wide. [citation needed] Legacy mode is not supported under NT-based OSes. The original version of the DS-XG chipset series is the ...
To avoid this, some motherboards allow choosing between HDA and AC'97 front panels in the BIOS. Even though the actual audio hardware is HD Audio, the BIOS can be manipulated to allow the use of an AC'97 front panel. Likewise, some modern enclosures have both an "AC'97" and an "HDA" plug at the end of the front-panel audio cable. [citation needed]
SigmaTel's AC'97 audio codec chip. SigmaTel, Inc., was an American system-on-a-chip (SoC), electronics and software company headquartered in Austin, Texas, that designed AV media player/recorder SoCs, reference circuit boards, SoC software development kit reference designs used to make media players for Apple iPod Shuffle, Samsung, Sony Walkman and 150 others built around a custom cooperative ...
The AudioPCI supported DOS games and applications using a software driver that would install during DOS, or the DOS portion of Windows 9x. This driver virtualized a Sound Blaster-compatible ISA sound card through the use of the PC's NMI and a terminate-and-stay-resident program. This allowed the AudioPCI to have more compatible out-of-the-box ...
It provided four PCI Express ×1 slots. The ×16 slot was provided by the MCH. The bottleneck Hub interface was replaced by a new Direct Media Interface (in reality a PCI Express ×4 link) with 1 GB/s of bandwidth per direction. Support for Intel High Definition Audio was included. In addition, AC'97 and the classical PCI 2.3 were still supported.
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)