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D.1 Introduction
The audio functionalities of the ROCKY-4786EVG CPU come with an onboard Realtek
ALC202A 18-bit, full duplex AC’97 2.2 compatible audio CODEC with independent and
variable sampling rate. The ALC202A supports host/soft audio from Intel ICHx chipsets as
well as audio controller based VIA/SIS/Ali/ATI chipset with bundled Windows series drivers
(XP/ME/2000/98/NT), EAX/Direct Sound 3D/I3DL2/A3D compatible sound effect utilities
supporting Karaoke, 26 kinds of environment sound emulations and 10-band equalizer.
The audio kit provides an excellent entertainment package sufficient for today’s multimedia
systems.
D.2 Driver Installation
The driver installation has been described in Chapter 6, Section 6.6.
After reboot, you should be able to find the sound effect configuration utility in Windows
Control Panel (Figure D-1); and if peripheral speakers have been properly connected, hear
the sound effects.
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