Mpact-2 is a 125 MHz vector-processing graphics, audio and video media processor, a second generation in the Mpact family of Chromatic Research media processors, which can be used only as a co-processor to the main Central Processing Unit (CPU) of a microcomputer.
See also: http://vintage3d.org/chromatic.php
UAD-1 DSP cards
The UAD-1 was a digital signal processor (DSP) card using the Mpact-2 sold by Universal Audio (acquired by ATI Technologies in November 1998), which uses the DSP, rather than the host computer's CPU, to process audio plug-ins. This allows accurate, but processor-intensive, reverbs, EQs, compressors and limiters to be handled in real time and without burdening the CPU. 3D functionality is hard-wired. The UAD-1 was superseded by the UAD-2, based on the Analog Devices 21369 and 21469 DSPs, in 2007.
UAD-1 hardware was produced with three interfaces: PCI (UAD-1), PCI Express (UAD-1e), and ExpressCard (UAD-Xpander). The cards were offered by Chromatic Research (formerly named Xenon Microsystems), and were part of the Chromatic Mpact 2 Video Adapter.
Yao, Yang (18 November 1996). "Chromatic's Mpact 2 Boosts 3D". Microprocessor Report, pp. 1, 6–10.
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