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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.
AudioPCI itself was re-branded as several Creative Labs sound cards, including the Sound Blaster PCI 64, PCI 128, Vibra PCI, and others. The Ensoniq ES1370 audio chip was renamed Creative 5507 and revised into AC'97 -compliant variants, the ES1371 and ES1373, and used for several more years on card and as integrated motherboard audio.
To provide true compatibility with the Sound Blaster's 8-bit playback on its 8-bit Pro AudioSpectrum Plus and 16-bit Pro AudioSpectrum 16, Media Vision included the same sound processor chip it used on its Thunder Board card. Thus, there were actually two digital audio playback devices on these cards that could also be used at the same time.
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.)
Media Vision Technology, Inc., was an American electronics manufacturer of primarily computer sound cards and CD-ROM kits, operating from 1990 to approximately 1995 in Fremont, California. Media Vision was widely known for its Pro AudioSpectrum PC sound cards—which it often bundled with CD-ROM drives—it is also known for its spectacular ...
The SRC engine was far more capable than previous Creative sound card offerings, a limitation that had been a major thorn in Creative's side. Most digital audio is sampled at 44.1 kHz, a standard no doubt related to CD-DA , while sound cards were often designed to process audio at 48 kHz.
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 ...
On supported sound cards, DirectSound would try to use "hardware accelerated" buffers, i.e. the ones which either can be placed in local sound card memory, or can be accessed by the sound card from the system memory. If hardware acceleration is not available, DirectSound would create audio buffers in the system memory and use purely software ...