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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.
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.)
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 card was and is often mistakenly called LAPC-1, but photos of the card's PCB and retail box show a capital letter I rather than a figure 1. Further evidence can be found in the owners manual which mentions the LAPC-I and also MCB-1, clearly showing specific use of I instead of 1. [2] The "I" presumably stands for "IBM PC", and the "N" for ...
Site for old PC without sound cards. Programming the PC Speaker, by Mark Feldman for PC-GPE. Programming the PC Speaker, by Phil Inch: part 1, part 2 (includes a very detailed explanation of how to play back PCM audio on the PC speaker, and why it works) Bleeper Music Maker A freeware to use the PC speaker to make music (superseded by BaWaMI)
The sound card with the external DAC consumes 75 W, and thus is the first sound card from Creative that requires auxiliary power, using a 6-pin PCI-E connector to supply power to the external DAC. The card was officially released on July 10, 2019, to celebrate 30 years since the introduction of the original Sound Blaster.
In addition to PCI and PCIe internal sound cards, Creative also released an external USB-based solution (named X-Mod) in November 2006. X-Mod is listed in the same category as the rest of the X-Fi lineup, but is only a stereo device, marketed to improve music playing from laptop computers, and with lower specifications than the internal offerings.
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 ).