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©
2003-2004, C-Media Inc. All Right Reserved.
23
http://www.cmedia.com.tw/
,
http://www.Xear3D.com/
CMI8768/8768+ Xear 3D Audio Driver
User Manual Rev. 1.0
6. Number of Output Channel
The following table summarizes the specification about the actual output channel
(the speakers that will have sounds) for different audio applications/sources.
Analog Speaker Type
Sound Source
AP
Digital
S/PDIF-Out
2CH
4CH
6CH
8CH
WinDVD /
PowerDVD
(Select
5.1/6.1/7.1
speakers in the
AP audio
setting)
Down-mix
6ch to 2ch
Down-mix
6ch to 2ch
(Xear 3D
Virtual
5.1ch with
SHIFTER
ON)
Down-mix
6ch to 4ch
(Xear 3D
Virtual
5.1ch with
SHIFTER
ON)
5.1 ch
(L, F, Ls, Rs,
Center,
Subwoofer)
7.1ch but
DirectX 9.0
above is
required
(L, F, Ls, Rs,
Lb, Rb,
Center,
Subwoofer)
5.1-channel
PCM Audio
(DVD)
WinDVD /
PowerDVD
(Select
S/PDIF-Out in
the AP audio
setting)
AC-3/DTS
Format Data
N.A. N.A. N.A.
N.A.
MS Media
Player /
C-Media Media
Rack (Use
DirectSound
Interface)
2ch
L, R
L, R, Ls,
Rs
L, F, Ls, Rs,
Center,
Subwoofer (if
“Bass
Enhancement”
is enabled.)
L, F, Ls, Rs,
Lb, Rb,
Center,
Subwoofer (if
“Bass
Enhancement”
is enabled.)
2-channel
Stereo PCM
Wave Audio
(MP3, CD,
VCD, …)
Winamp old
version ( Use
MCI Interface
by default
before V.3.0)
2ch
L, R
L, R
L, R,
Subwoofer (if
“Bass
Enhancement”
is enabled.)
1
L, R,
Subwoofer (if
“Bass
Enhancement”
is enabled.)
2-channel
MIDI
All Players
2ch
L, R
L, R
L, R,
Subwoofer (if
“Bass
Enhancement”
is enabled.)
L, R,
Subwoofer (if
“Bass
Enhancement”
is enabled.)
1
3D Sound
Games
2ch
L, R
L, F, Ls, Rs L, F, Ls, Rs,
Center
L, F, Ls, Rs,
Lb, Rb,
Center
2
Analog Input May not need
players
2ch
L, R
L, R
3
L, R
L, R
Note: 1. For MCI application program like Winamp old version, it just can deliver
2-channel stereo sound when playing general stereo music even you set 8CH.