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本帖最后由 fox541 于 2009-5-10 00:20 编辑 6 D0 z2 g0 ?, ~( b; D1 k
5 ?/ K) ?" A1 {2 N( L( T" O看不出来有何高明之处，还请楼下的兄弟指点
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The VX222v2 can be used with a wide choice of audio applications using
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6 J1 y8 H& A2 b: c# y * Microsoft's Wave and DirectSound0 w3 {8 P" m) H6 A; a! [3 b1 S
* Apple's CoreAudio
1 ~$ w2 B; K& ^, ?4 J: R1 e7 j * Steinberg's ASIO R* f! r: d e8 j1 I
* Linux ALSA9 w3 h i5 O. t% m% U- c
6 C; ~( C8 y, g- u( ]1 n- c- mFeatures
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* Full-duplex# c5 u3 R% z! ~4 z
* 2 balanced analog inputs/outputs, supporting +4dBu and -10dBV
( j1 q. b, ^: c j# j# A; z) z * Balanced digital stereo input/output in AES/EBU or S/PDIF formats
2 a) V/ e1 i( q * Dedicated Wave mixer, as well as ASIO and Mac control panel7 f$ g; N! m0 O# a( K0 }: r1 h
* Sample rate: 8 kHz to 48 kHz
& Y' ^# N4 I3 S _( s, k * PCM resolution: 8,16 or 24 bit, v" }/ j$ F/ m) v! Q9 [
* Universal PCI compatibility (3.3V ready)7 ]" n$ R" Q) s* y7 }& M
* Short-length PCI format (only 175 mm/6.875 inches): W0 b0 b- p/ a' ~' f
7 j: P3 @4 x# DSpecifications
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* Bus/Format: Universal PCI, slave mode, PCI-X compatible- R1 S( t8 \; O* o% G
* Size: 175 mm x 99 mm (VX222-Mic: 226 mm x 99 mm): j1 B$ O! M# y6 I( J* N
* Operating: temp / humidity (non-condensing): 0°C/+50°C ? 5%/90%# C; @; v% p- |) @
* Storage: temp / humidity (non-condensing): -5°C/+70°C ? 0%/95%: Y* K0 O9 Q. V4 `: L! m, J+ N% h% l
* Power requirements (+3.3V / +5V / +12V / –12V): 0.5A / 0.1A / 0.2A / 0.1A) ]. Y- Q, x8 k; a- |& V
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Inputs / Outputs
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5 C- {/ Q! o* |/ W8 f/ \! y5 W * Analog line inputs (stereo): 1 balanced
) ?5 ?, z h) p( u9 I * Maximum input/impedance: +22 dBu/ >10k?
& q' i1 j& t9 D * Programmable input gain: digital
8 S, V2 X5 ^4 p/ d * Digital inputs (stereo): 1 AES/EBU, ? l2 y& C* w! n2 V5 G4 H
* Other inputs: 2 GPI (dry contact)7 ?4 K/ R4 W* |9 g" ]) c4 t
* Analog outputs (stereo): 1 balanced0 R8 ~* z7 }! O+ F% E
* Maximum output/impedance: +22 dBu/low impedance
1 y9 v4 i1 g$ z( c5 |! l3 F * Programmable output gain: digital and analog
8 L* K' {8 n$ M; | * Digital outputs (stereo): 1 AES/EBU
" Z7 {& z2 F$ A8 x * Other outputs: headphone (600?), two GPI (relay, 0.5A, 48VCC)
* g) o# x/ c( ~3 E5 { * Access to main status bits of digital frame: Yes
/ n. e v7 b' M; @4 b: {& H * AES11 synchronization: Yes
# d% A1 V9 R' n' f2 |/ I1 Q * Connectors: 15-pin SUB-D for analog I/O; 15-pin HD SUB-D for digital I/O, sync. and GPI/ x$ D6 T6 P. H7 K
) x( E: R1 P% Y; W7 d! U P5 PAudio Specifications- q& f* ], M8 c" x) d; j) o; R+ T
" s7 @# f% z- h' ^" o7 e( D" k * Sampling frequencies available: Programmable from 8 to 50 kHz
( r; _8 B0 H$ D& z * A/D and D/A converter resolution: 24 bit
( L( N* K# H0 X) E: d * Frequency response: 20 Hz – 20 kHz: ±0.2 dB
+ M* z$ I4 H7 M# u * Signal to noise ratio: >97 dB
% M, t8 y$ q2 D. b! l' B * Distortion + noise at 1 kHz: <-92 dB (0.0025 %)
4 a* [8 w. K# ^( a4 ^0 S2 l * Channel phase difference: 20 Hz/20 kHz 0.5/26 K/ a) I3 I5 x+ z9 H
* Analog channel cross talk: <-115 dB |
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发表于 2009-5-10 00:00
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