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看了一些特性..' K2 N r; }! e2 |
關鍵應該是在VIA的VT1618(任憑Envy24有些功能是做不到..)..., d$ j' }9 X/ }$ E. Z
看看一些特性
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[VT1616], {0 _6 K8 @5 B- `
Sound Quality
! p6 X) R N* u5 y/ g" r& E» 18-bit, 6 channel DAC outputs7 {! e; A5 S- ?4 l
» 18-bit independent rate stereo ADC5 L/ k* y; ], @* m9 M& F/ ~
» 1 Hz resolution VSR (Variable Sampling Rate) on all channels3 A" ?2 A, A1 ]2 d! p
; C+ F9 X+ M0 [4 f& o- g" b gInput/Output
5 e+ W3 ?! P# ]» 4 stereo, 2 mono analog line-level inputs8 k& y" o; G: N
» Integrated IEC958 line driver for S/PDIF
: r* x3 G$ Y; G! b" R m! a» S/PDIF compressed digital or LPCM audio out' u" a% J; \7 a7 v
» Hardware downmix option to 2 channels
% U% T( V" T3 ~% k4 q* z# t» Second line-level output with volume control: b2 \2 g" Y! C$ a9 h5 W3 f A
9 U) J. j/ q, F1 W5 _5 ~2 m* V& j8 sArchitecture3 z/ c' X |/ p& N- c# J% K
» AC'97 2.2 S/PDIF extension compliant Codec
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5 R. {; C4 u O! gOther Features+ O' Q9 v9 l6 X% y" O4 |
» 3D stereo expansion for simulated surround
; _* Y! W0 L# u- S9 R. Z- b) |. O» Exceeds Microsoft® WHQL logo requirements
; I. c- y+ c' R3 @! O. R/ ?$ `» External Audio Amplifier Control
0 {! D# g9 \) V===================================================
+ b% p- J; {6 T& k$ Z$ O1 g[VT1618]/ ?, ]- S2 l# Q% O( k- ~2 j
Key Features1 N2 ?; L8 |. ~$ y/ l9 L
Leading Audio Quality
C" D9 R. m: R. c/ g0 [$ K: Z» Supports sampling rates up to 96KHz# v g9 }) ~+ m3 F. t7 ~
» Independent 20-bit ADC and 20-bit DAC" p2 X8 Y& m# s; A- B# ~
» SNR (Signal to Noise Ratio) exceeds 95dB: S, S* Z; s& d9 I/ s- r1 L
» Built-in 1HZ resolution VSR converter , x6 L% H& s, b5 @- Z, c( z- o
* |; s5 R! I3 PInput/Output
1 z/ c4 F5 Z* ?. X# U" F» Supports 7.1ch outputs
: C8 k% ^6 f# N# G» Hardware down-mixes 6-channel to 2-channel or 4-channel
4 `/ x5 H( N4 Q+ \8 F, K6 P7 z» Center and LFE channel swapping. N0 j! Z7 h+ M) `% s8 a5 A; B
» Alternative Line-Level outputs at surround outputs1 @; j+ R# v9 i$ U4 l0 T- o) o
» 96KHz S/PDIF output3 q4 W) l3 I2 T( c3 q
» Direct CD input to S/PDIF output$ n5 f0 @! q, o9 g4 @1 w. ?
) ^7 L, l7 P8 [% ^% RArchitecture$ U* i; c1 }) P8 T; t$ B& Z
» Flexible Jack-detect design1 q4 V5 F- d6 ?7 Y. i% p" b
» Built-in accurate PLL for saving an external crystal
, x5 N4 W+ Y8 S; ?8 r$ G) ^» Fully compliant with AC’97 Revision 2.3
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+ M5 i4 b4 P3 p# w7 mEasy System Integration
) {3 g/ z! k2 U; b% s* u- ^3 |" {» 4-bit 3D depth control& ]: _1 {4 ~/ b
» Supports EAPD control* a) \9 p: Y/ N" @1 `2 ^& F
» Supports GPIO pins control
3 \% r) p+ v1 M( A; O! ~» Selectable clock sources/ V1 O' ]2 k, o* G1 o
; V/ D' g2 e0 P: WOther Features8 d+ }6 ?6 v) |' D1 |; u% s4 b
» Integrates headphone amplifier with mute
7 T9 N# N( `/ ^2 J& g# |/ w» Stereo recording
" X7 ?4 V. J8 e( a- N/ P3 ~$ s» Dual microphones supporting Karaoke with mixing
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VT1618多了一些功能../ ?0 B1 y! r+ A: o
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[ 本帖最后由 per1-q1222 于 2008-8-13 19:16 编辑 ] |
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