User Manual

6
FEATURES
VX1222e and VX1221e are audio cards for PCI EXPRESS
TM
(PCIe
®
) bus. They
are in PCI EXPRESS
TM
x1 format and can thus be plugged into any PCIe
®
slot
(x1, x2, x4, x8, x16, x32).
VX1221e main hardware features
• 1 digital AES/EBU
∗
stereo input, with hardware sample rate converter
(up to 192 kHz) and programmable digital gain
• 6 digital AES/EBU
∗
stereo outputs (up to 192 kHz) with programmable
digital gain
• 1 digital AES/EBU
∗
stereo sync input (up to 192 kHz in play and record)
• 1 standard Word Clock input (up to 96 kHz)
• 1 standard Word Clock output (up to 96 kHz)
• 1 video sync input
• 1 SMPTE/LTC (Linear Time Code) sync input
VX1222e main hardware features
All features of the VX1221e, plus:
• 2 balanced
∗∗
analog mono line inputs, with software programmable
analog and digital gain
• 12 servo-balanced
∗∗∗
analog mono line outputs, with software
programmable analog and digital gain
• 192 kHz / 24-bit converters
• Maximum level on analog inputs and outputs: +24 dBu
Note: The digital outputs always play the digital version of the corresponding analog outputs.
The selection of the AES/EBU input excludes the selection of the corresponding analog
inputs.
Main software features
• Real-time, simultaneous PCM record and playback (8, 16 and 24 bits),
Float IEEE754 (with 24-bit fixed-point dynamic range)
• When using the np SDK, real-time on-board mixing of several PCM
audio streams, direct monitoring, level adjustment, panning, cross-fades,
punch-in/punch-out, scrubbing
• Low latency DirectSound, Wave
∗∗∗∗
, and ASIO drivers
∗
can be used as S/PDIF interface as well
∗∗
can be used with unbalanced signals
∗∗∗
Electronically servo-balanced outputs provide automatic level adjustment to accommodate
either balanced or unbalanced lines
∗∗∗∗
Windows XP and Server 2003 only