|
本帖最后由 fox541 于 2009-5-10 00:20 编辑 - w/ ]- t4 A1 v2 _0 X' u+ G
1 h1 O y7 C/ z7 ]
看不出来有何高明之处,还请楼下的兄弟指点
/ d" G9 w8 z/ D5 d/ r
# o' q/ q' s7 r! ?2 Y( Z
; y+ Y) i' j0 S, ~$ |
2 w6 z8 g. D( H! [; aThe VX222v2 can be used with a wide choice of audio applications using Q: z/ i' {5 z) c. ?9 w2 `
5 R/ Z* A' c1 e5 W6 M
* Microsoft's Wave and DirectSound
( Q8 W7 h6 {- r5 s( K * Apple's CoreAudio
5 \. l+ z5 D! q7 Y* V * Steinberg's ASIO, L/ N0 _: n0 G( X9 O4 y
* Linux ALSA2 {' @; a+ G& D* J$ N
. B+ T, ]# f+ e& {% ]Features
0 A' V7 a" O( }: y% E$ h5 V% h2 i7 x) @; E5 ?; P
* Full-duplex0 @, i$ ^! y- I5 G! R5 \
* 2 balanced analog inputs/outputs, supporting +4dBu and -10dBV. S1 r% y- W& c1 a8 k2 a
* Balanced digital stereo input/output in AES/EBU or S/PDIF formats
" h3 v, D, p P* P+ z * Dedicated Wave mixer, as well as ASIO and Mac control panel: j- h# n* B! W6 _1 r
* Sample rate: 8 kHz to 48 kHz
" R2 s' S9 V, U" e4 }9 t * PCM resolution: 8,16 or 24 bit
' v: X E1 g/ L h7 @; N * Universal PCI compatibility (3.3V ready)2 g+ s3 E7 `8 z5 [ i; }6 N) z( _
* Short-length PCI format (only 175 mm/6.875 inches)- b' G4 X! W, c3 i# I% i1 ~+ n3 A
" k1 M/ R" @1 _) W. a1 J
Specifications3 n- R- P, Q2 \; H5 b
: b. A4 Q9 _8 l) N" x: YConfiguration
R! W5 J; e0 Q, ?1 z
6 N" J# `6 k" d* F: O, w3 A * Bus/Format: Universal PCI, slave mode, PCI-X compatible
) u0 M! _$ V3 q+ w) h8 Y, t, Z2 J8 { * Size: 175 mm x 99 mm (VX222-Mic: 226 mm x 99 mm)
8 I/ m6 y! B* e2 W- k1 T. q * Operating: temp / humidity (non-condensing): 0°C/+50°C ? 5%/90%
& E/ Q1 R1 P& v9 c& D" d * Storage: temp / humidity (non-condensing): -5°C/+70°C ? 0%/95%3 n$ h) t9 R4 F0 w2 a) U
* Power requirements (+3.3V / +5V / +12V / –12V): 0.5A / 0.1A / 0.2A / 0.1A Y) a i6 \% s& w/ ?
2 [2 D$ w5 Q% P7 K: f
Inputs / Outputs
3 v' ?) q7 {; ^7 C7 z* n- v- [) M1 |9 ?; }
* Analog line inputs (stereo): 1 balanced
1 E `% K/ ]* r# v * Maximum input/impedance: +22 dBu/ >10k?' k0 n, @; |. B# @, l
* Programmable input gain: digital. D1 E+ g. E3 q, L3 x! Y+ e* ]) i
* Digital inputs (stereo): 1 AES/EBU( u& f- T/ f* v0 Y0 n/ k$ p% K4 p5 l
* Other inputs: 2 GPI (dry contact)
! @# `& l4 _8 l. ? D * Analog outputs (stereo): 1 balanced
; W l& P, W E9 _) B * Maximum output/impedance: +22 dBu/low impedance2 D6 @' z" x5 ?* ]2 O" C. n
* Programmable output gain: digital and analog
5 e% q. A" S- D! v$ v! q * Digital outputs (stereo): 1 AES/EBU3 g% B5 Q. u! C H, H
* Other outputs: headphone (600?), two GPI (relay, 0.5A, 48VCC)
4 r9 p9 w$ F6 i7 d0 Y# O2 W J * Access to main status bits of digital frame: Yes
! ?5 w% w6 E1 E" V% K1 z * AES11 synchronization: Yes
5 ]& d) B; z; R# j* j% z * Connectors: 15-pin SUB-D for analog I/O; 15-pin HD SUB-D for digital I/O, sync. and GPI2 m$ a0 [. m2 M
$ s+ b) u/ s- \, i5 l; f# oAudio Specifications
+ Y3 u* a+ r" I
8 j: M" k# O. ?! \( ] * Sampling frequencies available: Programmable from 8 to 50 kHz
0 I( ?4 N* C; K5 ?4 m' v * A/D and D/A converter resolution: 24 bit" q. Z1 `# `7 r
* Frequency response: 20 Hz – 20 kHz: ±0.2 dB d8 V' S7 c: F# M$ }1 F. r
* Signal to noise ratio: >97 dB1 {9 g+ a$ Y6 R- L/ x" g F- {8 l
* Distortion + noise at 1 kHz: <-92 dB (0.0025 %). I$ v" O" x3 O) d; W1 A; I
* Channel phase difference: 20 Hz/20 kHz 0.5/2
( L: X/ f# L1 } m * Analog channel cross talk: <-115 dB |
|