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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.)
Three drawbacks of AMR are that it eliminates one PCI slot, it is not plug and play, and it does not allow for hardware accelerated cards (only software-based). [1] Technologically, it has been superseded by the Advanced Communications Riser (ACR) and Intel's own communications and networking riser (CNR). However, riser technologies in general ...
Sega Mega Drive/Genesis console (later models), FM Towns computer, Sega arcade systems: Improved Yamaha YM2612, PCM supported on one of the channels, silicon-gate CMOS LSI chip Yamaha YMF262 (a.k.a. OPL3) 1990 [76] 36 18 4 Sound Blaster Pro 2.0 and later cards for PC (including Sound Blaster 16, AdLib Gold 1000 and AWE32) Silicon-gate CMOS chip ...
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Also, it was difficult for programs to do much else, even update the display, during the playing of such sounds. Thus, when sound cards (which can output complex sounds independent from the CPU once initiated) became mainstream in the PC market after 1990, they quickly replaced the PC speaker as the preferred output device for sound effects.
As sound cards were primarily used with computer games, Creative Labs took the opportunity to include a game port on the card, producing an all-in-one gaming solution. At the same time, they re-purposed two otherwise redundant pins on the port, 12 and 15, to produce a serial bus with enough performance to drive an external MIDI port adapter.
AMD TrueAudio is a kind of audio co-processor. Block diagram of HiFi Audio Engine DSP, which TrueAudio is based on. Shows the 56-bit wide MAC unit.. TrueAudio is AMD ' s application-specific integrated circuit (ASIC) intended to serve as dedicated co-processor for the calculations of computationally expensive advanced audio signal processing, such as convolution reverberation effects and 3D ...
The GF1 chip. The Gravis UltraSound or GUS is a sound card for the IBM PC compatible system platform, made by Canada-based Advanced Gravis Computer Technology Ltd. It was very popular in the demoscene during the 1990s.