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看了一些特性..
! f7 x J1 v6 k6 |$ o; C關鍵應該是在VIA的VT1618(任憑Envy24有些功能是做不到..)...
$ c" k5 l7 T4 k& @7 ~看看一些特性
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[VT1616]
" H$ e/ l/ u3 H6 DSound Quality
: H: E; H8 s5 i( l! L4 q* l» 18-bit, 6 channel DAC outputs
8 M6 J# L4 E+ S1 c% e7 P2 k» 18-bit independent rate stereo ADC0 @1 P% M) M/ c, Z
» 1 Hz resolution VSR (Variable Sampling Rate) on all channels* |3 q8 k) w+ v6 |8 N
4 u {* m- w& k- DInput/Output6 D& M6 R1 Y3 z d4 |. S4 {
» 4 stereo, 2 mono analog line-level inputs" Y' ^9 G# Z! g+ N$ h
» Integrated IEC958 line driver for S/PDIF
+ d8 e" J& y7 c' j: H4 Q5 G9 Q» S/PDIF compressed digital or LPCM audio out
# |8 V# a3 Z" H* r. d6 K» Hardware downmix option to 2 channels, M; R3 r6 z- u; x y
» Second line-level output with volume control& ^( Q: e7 d) ^+ k6 J" D
0 U7 y1 J( Z7 Y: u7 NArchitecture
" H0 q2 _3 |2 X8 ?* S» AC'97 2.2 S/PDIF extension compliant Codec
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Other Features
" T8 T& G+ y& u; P0 n9 D1 R2 ?» 3D stereo expansion for simulated surround! m5 R3 Y7 K) T- s% Z& M" f
» Exceeds Microsoft® WHQL logo requirements/ b/ Q1 s1 p n, w
» External Audio Amplifier Control: m% _# {. b1 p" \/ Q3 q" F4 @
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) B/ U4 [0 C( T$ f& H8 Q[VT1618]
% t" H J1 M0 ~ vKey Features
+ L% C, P! [( P2 ]$ N1 mLeading Audio Quality8 X$ M8 L6 I8 v! u
» Supports sampling rates up to 96KHz
* f9 J) Y6 Y: h" ]» Independent 20-bit ADC and 20-bit DAC
1 i$ F* G, }- [% s0 d3 A6 t» SNR (Signal to Noise Ratio) exceeds 95dB
% U/ n( x% @2 i6 o5 s* z. K8 T7 w» Built-in 1HZ resolution VSR converter & f8 ?- D& b- _" q
( v0 |: L; W1 n& M9 U/ QInput/Output
: O( p1 \$ \) z" R* @0 Q* q» Supports 7.1ch outputs+ ~# h: h- W$ m2 A* S
» Hardware down-mixes 6-channel to 2-channel or 4-channel
+ P* s8 W' ]$ q! @0 ?: ~! ?$ m' o1 g» Center and LFE channel swapping
4 S2 x3 d u- a( C' v4 ^& {» Alternative Line-Level outputs at surround outputs
' }' m& B: K2 n. t2 _» 96KHz S/PDIF output
3 Y% S; c4 s' }( h, a» Direct CD input to S/PDIF output7 _8 L$ D8 M1 H8 c
4 B# `! O. U V% Z wArchitecture
$ A8 \0 M5 [7 e» Flexible Jack-detect design
4 n* Y; _- B; J- ?/ i0 o. i/ E» Built-in accurate PLL for saving an external crystal
: {& n6 w5 z8 ~/ T; y» Fully compliant with AC’97 Revision 2.3
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Easy System Integration
( y( a2 A* q( N6 U% J# n5 a3 O» 4-bit 3D depth control
8 W2 z3 h$ e, ?! {» Supports EAPD control
8 F- s, s' Q$ F+ u* q# p% p5 b% s» Supports GPIO pins control
% r: _8 y4 V1 ^, f9 t» Selectable clock sources) z6 s# R" B( E- m
/ {* e/ t3 F, Z; P8 p- pOther Features! u; {( k3 o: ]. j
» Integrates headphone amplifier with mute6 s! f6 x. L& D' ^8 @
» Stereo recording
5 `1 C' a( @' F$ B7 M» Dual microphones supporting Karaoke with mixing
$ y3 Z) p; O! I5 W---------------------------------------------------------------------------------------
4 ?6 t' N' x% a. h2 t; gVT1618多了一些功能..
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" `! r# V# R3 G+ U9 I) v% o# t b[ 本帖最后由 per1-q1222 于 2008-8-13 19:16 编辑 ] |
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