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本帖最后由 fox541 于 2009-5-10 00:20 编辑
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看不出来有何高明之处,还请楼下的兄弟指点 7 j" p0 O: ?# }+ c9 v0 W* h8 c d! U
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The VX222v2 can be used with a wide choice of audio applications using
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* Microsoft's Wave and DirectSound9 r( y" P' p1 z7 W, ^ x
* Apple's CoreAudio
! ^6 B' ^( v# I * Steinberg's ASIO
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Features
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% F4 p2 q6 B% z6 y7 u* d * Full-duplex/ T! p# K8 @( ?7 ~& \# s
* 2 balanced analog inputs/outputs, supporting +4dBu and -10dBV% b# H9 M: ~" o9 |+ C
* Balanced digital stereo input/output in AES/EBU or S/PDIF formats
6 h7 }$ `# E4 J- w7 G * Dedicated Wave mixer, as well as ASIO and Mac control panel
) F6 I+ r5 k J0 y/ f. x6 j- h6 j+ G) \ * Sample rate: 8 kHz to 48 kHz
8 r) b7 [; S4 n! ^( G& G5 }; T6 M1 u: K * PCM resolution: 8,16 or 24 bit# c3 V# A% n" D& C4 A2 [# Q5 {% ^$ O
* Universal PCI compatibility (3.3V ready) z( |3 {6 C$ x. N
* Short-length PCI format (only 175 mm/6.875 inches)6 n& B2 G+ ?5 i" Z
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Specifications( r, m) v9 I' b4 z7 ]$ }9 T
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* Bus/Format: Universal PCI, slave mode, PCI-X compatible
5 r( I3 ?2 s' C# K9 e * Size: 175 mm x 99 mm (VX222-Mic: 226 mm x 99 mm)
5 t9 W& W5 }% \( S * Operating: temp / humidity (non-condensing): 0°C/+50°C ? 5%/90%% L, `, O, L# g" {3 j+ A0 A6 p
* Storage: temp / humidity (non-condensing): -5°C/+70°C ? 0%/95%
D' U9 h3 r. r9 |5 d; A * Power requirements (+3.3V / +5V / +12V / –12V): 0.5A / 0.1A / 0.2A / 0.1A
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5 W% ?' @4 q5 @" k+ ^' RInputs / Outputs* E; b" U- t4 ]- A8 G/ N
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* Analog line inputs (stereo): 1 balanced
h$ j. k+ C* J V- `1 q * Maximum input/impedance: +22 dBu/ >10k?0 _. q2 E8 q* B4 c9 p4 }$ f
* Programmable input gain: digital% ~6 @: D6 X/ ~ P- t: L1 Q
* Digital inputs (stereo): 1 AES/EBU
: _/ q# ?! S' s * Other inputs: 2 GPI (dry contact)
7 c7 m$ ~) j) a/ V3 E) ? * Analog outputs (stereo): 1 balanced: [' X8 q' T8 X
* Maximum output/impedance: +22 dBu/low impedance
, L( l& P, A. V, T1 q2 F * Programmable output gain: digital and analog
5 j" G& H) D8 A * Digital outputs (stereo): 1 AES/EBU. } j8 p$ s3 F4 c( d7 M5 q
* Other outputs: headphone (600?), two GPI (relay, 0.5A, 48VCC)1 t# B1 j1 N7 J S6 ~
* Access to main status bits of digital frame: Yes+ p+ S$ @4 t& f: c( x2 w2 y. S2 F
* AES11 synchronization: Yes7 B! J% Q4 Z: d! h& E& R2 P4 Z2 W
* Connectors: 15-pin SUB-D for analog I/O; 15-pin HD SUB-D for digital I/O, sync. and GPI" y+ H- R8 h& R3 g
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Audio Specifications
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; D1 M% w0 g' z0 A0 Z+ X/ i8 t * Sampling frequencies available: Programmable from 8 to 50 kHz* K L9 Q* t; ]( |- C/ Y
* A/D and D/A converter resolution: 24 bit7 T) m# E" n! x- L
* Frequency response: 20 Hz – 20 kHz: ±0.2 dB
6 L2 o- N8 u+ j3 k# X+ \" Q * Signal to noise ratio: >97 dB
, U4 r/ z+ n4 \' v% M( @ * Distortion + noise at 1 kHz: <-92 dB (0.0025 %)
% r6 I+ j' D+ \1 v1 `0 k- d * Channel phase difference: 20 Hz/20 kHz 0.5/2& L& `/ L: F3 o: G+ X9 A
* Analog channel cross talk: <-115 dB |
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