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Ensoniq AudioPCI
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Ensoniq AudioPCI : ウィキペディア英語版
Ensoniq AudioPCI

The Ensoniq AudioPCI is a PCI-based sound card released in 1997. It was Ensoniq's last sound card product before they were acquired by Creative Technology. The card represented a shift in Ensoniq's market positioning. Whereas the Soundscape line had been made up primarily of low-volume high-end products full of features, the AudioPCI was designed to be a very simple, low-cost product to appeal to system OEMs and thus hopefully sell in mass quantities.
== Low cost ==

Towards the end of the 1990s, Ensoniq was struggling financially. Their cards were very popular with PC OEMs, but their costs were too high and their musical instrument division was fading in revenue. Pressure from intense competition, especially with the dominant Creative Labs, was forcing audio card makers to try to keep their prices low.
The AudioPCI, released in July 1997, was designed primarily to be cheap. In comparison to the wide variety of chips on and sheer size of the older Soundscape boards, the highly integrated two chip design of the AudioPCI is an obvious shift in design philosophy. The board consists only of a very small software-driven audio chip (one of the following: S5016, ES1370, ES 1371) and a companion digital-to-analog converter (DAC). In another cost-cutting move, the previously typical ROM chip used for storage of samples for sample-based synthesis was replaced with the facility to use system RAM as storage for this audio data. This was made possible by the move to the PCI bus, with its far greater bandwidth and more efficient bus mastering interface when compared to the older ISA bus standard.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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