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A sound card (also known as an audio card) is an internal expansion card that provides input and output of audio signals to and from a computer under the control of computer programs. The term sound card is also applied to external audio interfaces used for professional audio applications.
Early systems such as Digidesign's Sound Tools (1989) and Session 8 (1993) [3] and the Ensoniq PARIS (1998) consisted of an external unit that connected to the host computer with a ISA or SCSI card, but from the late 1990s onwards it became practical to use standard computer interfaces such as FireWire, USB, and eventually Thunderbolt instead.
Older sound cards had no common standard color codes until after PC 99. The PC System Design Guide (also known as the PC 97, PC 98, PC 99, or PC 2001 specification) is a series of hardware design requirements and recommendations for IBM PC compatible personal computers, compiled by Microsoft and Intel Corporation during 1997–2001. PC 99 ...
Sound Blaster Pro 2.0 and later cards for PC (including Sound Blaster 16, AdLib Gold 1000 and AWE32) Silicon-gate CMOS chip [54] [33] [63] Yamaha YMF271 (a.k.a. OPX) 1993 36 18 4 12 additional PCM channels Yamaha YMF278 (a.k.a. OPL4) 1993 36 18 4 Moonsound cartridge for MSX computer [77] Yamaha YMF292 (a.k.a. SCSP) 1994 32 32 32
The two sound cards are the same; the Phoebus comes bundled with an external desktop controller that is not included with the Phoebus Solo. [19] [20] Xonar Phoebus Solo 22 April 2013 [19] Xonar SE PCIe July 2019 [21] Xonar STX PCIe Xonar U1 External (USB) Xonar U3 23 December 2014 [22] [23] Xonar U5 14 July 2014 [24] [25] Xonar U7 [26] April ...
S/PDIF can carry two channels of uncompressed PCM audio or compressed 5.1 surround sound; it cannot support lossless surround formats that require greater bandwidth. [4] S/PDIF is a data link layer protocol as well as a set of physical layer specifications for carrying digital audio signals over either optical or electrical cable. The name ...
A sound chip is an integrated circuit (chip) designed to produce audio signals through digital, analog or mixed-mode electronics.Sound chips are typically fabricated on metal–oxide–semiconductor (MOS) mixed-signal chips that process audio signals (analog and digital signals, for both analog and digital data).
Control channels Controlled source Wave / PCM stereo: Audio signal generated by the CPU via the sound card's digital-to-analog converter. (This includes audio produced by games, MP3 or WAV players, but also some software playing a CD-DA through the CPU, such as, Windows Media Player or Media Player Classic, as well as TV tuner cards that use the CPU for decoding audio.)