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看了一些特性..4 d* ]. U& m, U4 P8 w- u1 L1 G7 d: E
關鍵應該是在VIA的VT1618(任憑Envy24有些功能是做不到..)...
2 n9 c% J$ V6 H" J2 U$ @; L8 X( ^看看一些特性
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! l5 s# o+ q# F4 C" z! d[VT1616]
" q" N7 c/ d+ }3 [" J: tSound Quality
3 w2 s, Y _; ?2 t% A» 18-bit, 6 channel DAC outputs
0 |1 G9 K6 p( Z' ?! O6 V- J! m/ p» 18-bit independent rate stereo ADC" U& o6 n3 k3 \$ P" z6 q
» 1 Hz resolution VSR (Variable Sampling Rate) on all channels
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2 `4 l0 V9 I& S8 g) CInput/Output! W1 r( t9 `0 v, ]5 b3 W
» 4 stereo, 2 mono analog line-level inputs k$ j( L: u0 f8 ?
» Integrated IEC958 line driver for S/PDIF- E+ D) ]/ I1 q4 |
» S/PDIF compressed digital or LPCM audio out
& D6 x3 ]# I/ N5 W2 M/ i% _» Hardware downmix option to 2 channels* T1 l0 D9 Z4 k9 B' x# S
» Second line-level output with volume control7 _# b, R, {) P
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Architecture
) {2 {3 R$ n2 i, p% V& v7 ~# `» AC'97 2.2 S/PDIF extension compliant Codec
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Other Features" ]6 S; L7 o- X7 F6 s! n1 R
» 3D stereo expansion for simulated surround
1 ?5 W; \' U8 m H+ X/ B/ [» Exceeds Microsoft® WHQL logo requirements+ ]8 {( X9 T9 D/ |/ o" `, r
» External Audio Amplifier Control+ b; k$ G: N8 d; o$ f9 z# d
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[VT1618]3 R$ O3 G. {! P: q
Key Features
5 H$ G7 ^1 m% ?: V2 V- gLeading Audio Quality
% `# J1 e" E4 e% x, [. d7 i» Supports sampling rates up to 96KHz1 j/ M2 l6 d% w5 ^
» Independent 20-bit ADC and 20-bit DAC9 v! m; e7 Y2 F. z9 q9 T g) ^
» SNR (Signal to Noise Ratio) exceeds 95dB
8 E% k! } y6 c/ ~» Built-in 1HZ resolution VSR converter - V" f4 ^+ m9 s
: E/ i/ R" u7 @: O" j! I) g: OInput/Output
! w2 O+ y8 m1 ?/ w `» Supports 7.1ch outputs
- x2 K; ?5 ~$ ]) A5 S& n» Hardware down-mixes 6-channel to 2-channel or 4-channel' K p, x9 S! f6 C- ~
» Center and LFE channel swapping- W2 X. }$ A# v5 \1 O
» Alternative Line-Level outputs at surround outputs6 W a9 R: t4 k4 q9 Q6 _# `
» 96KHz S/PDIF output
. m* R/ n0 o, D8 \) l8 O» Direct CD input to S/PDIF output
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4 C) \. W. G6 ?2 kArchitecture
# p7 b! i3 ]4 x5 F$ l/ {» Flexible Jack-detect design
& {4 Y/ k5 |1 E6 b1 z» Built-in accurate PLL for saving an external crystal, g) l* }0 Y' ~- G& R6 Q! U0 k5 \
» Fully compliant with AC’97 Revision 2.3
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$ B7 \7 c3 I8 UEasy System Integration
! k3 |" B0 z6 j; |1 I» 4-bit 3D depth control
3 C! R5 G0 v5 ?* I5 H! o» Supports EAPD control$ y8 H# V( p" G# x, b* ~
» Supports GPIO pins control$ x/ L. U4 m, C& \; U- N2 n4 D5 g
» Selectable clock sources' r- u7 e% P1 p! g
& O# ?+ g$ x4 k- g/ P* XOther Features
9 o! J N) `. y1 ~" I' n5 H» Integrates headphone amplifier with mute
& T' H2 L2 E/ R» Stereo recording8 A B# B6 S! @: \9 B) |" A0 E B# b
» Dual microphones supporting Karaoke with mixing " U6 K5 D% v, n! }; \5 ^
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" B3 Z, a) R pVT1618多了一些功能..
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[ 本帖最后由 per1-q1222 于 2008-8-13 19:16 编辑 ] |
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