Chip Function List
3D positional audio(C3DX™) for 4 / 6 CH output.
digital interface, supporting 24-bit SPDIF IN/OUT
32ohm earphone buffer,
ZV port, and PCtel® HSP56
PCI bus master.
driver support: Microsoft® DirectSound™3D,
Linux™, BeOS™, etc.
echo and Karaoke ascending/descending key
chip design, digital power +3.3V, analog power +5V,
is the registered trademark of C-Media.
3D Extension Positional Audio Chip
high speed PCI V2.1 bus controller and legacy audio SBPro®
DSPemulator,CMI8738 is designed for PC add-in cards and all-in-one
motherboards. No external CODEC is needed in CMI8738: CMI-8738
supports the legacy audio – SBPRO™, FM
wavetable music synthesis, and HRTF 3D positional audio functions.
Above all CMI8738 supports PCtel® HSP56 (1789)
compatible with A3D™ and DirectSound™ 3D, CMI8738
meets PC99® requirements, and supports professional digital
audio interface such as 24-bit
SPDIF IN (0.5V ~ 5V)and OUT(44.1K and 48K format).
uses HRTF 3D extension technology to enhance traditional HRTF 3D
positional audio by substituting
two-speaker system by four or six - speaker one (it
supports additional 2 ch 16-bit DAC to provide rear side audio and
another 2 ch for subwoofer/Center).
greatly improves HRTF 3D positional audio quality and successfully
removes the sweet spot limitations: users can enjoy genuine 3D
audio gaming effects, and don't have to worry about the
environmental confinement any more.