Home Sound Cards VX820e Multichannel PCM Sound Card
  • Overview
  • Specifications

VX820e Multichannel PCM Sound Card

Key Workflow: Linear PCM multichannel stereo sound card for professional playout audio workstations

VX820e is a professional linear (PCM) multichannel sound card based on the PCI Express bus interface. It is designed for use in demanding applications such as broadcast radio live-assist, permanent playback, multichannel playback, running under Windows and requiring balanced analog connectivity.

At a glance

VX820e features eight balanced analog output channels and two balanced analog input channels. It can be used under Windows with software applications based on standard driver interfaces such as WDM Kernel streaming, DirectSound, Wasapi, and ASIO for Windows:

  • Developed for the broadcast industry
  • Balanced analog audio connectivity
  • Interoperable with most third party software applications for audio production, under Windows and Linux

Key features

  • Multichannel linear PCM sound card
  • PCI Express bus interface
  • Eight balanced analog outputs and two balanced analog inputs, +24 dBu max level
  • Adjustable input and output analog and digital gains
  • On­board 3­band parametric EQ and Maximizer effects
  • Support for Windows 32­bit and 64­bit (WDM kernel streaming, DirectSound,Wasapi, ASIO)
  • Breakout cables or 2U breakout box BOB8. XLR connectors

CONFIGURATION

  • Bus/Format: PCI Express™ (PCIe®) x1 (x2, x4, x8, x16, x32 compatible)
  • Size: 168 mm  ́ 111 mm x 20 mm
  • Power requirements (+3.3V/+5V / +12V / –12V): 3 A / 0 A / 0.4 A / 0 A
  • Operating: temp / humidity (non­condensing) : 0°C/+50°C • 5%/90%
  • Storage: temp / humidity (non­condensing): ­5°C/+70°C • 0%/95%

INPUTS

  • Analog line inputs (mono): 2 balanced
  • Maximum input level/ impedance: +24 dBu/ >10 kW
  • Programmable input gain: analog:
    – from –94.5dB à +15.5 dBÄ
    – digital: from –110 dB à +18 dB
  • AES11 synchronization

OUTPUTS

  • Analog line outputs (mono): 8 servo­balanced
  • Maximum output level / impedance: +24 dBu / <100 W
  • Programmable output gain:
    – analog: from –86 dB to +24 dB
    – digital: from –110 dB to +18 dB

CONNECTORS

  • Internal connectors: Inter­board Synchronization
  • External connector: 68­pin SCSI MDR
  • Digigram accessories available:
    – Breakout cable or 2U
    – Breakout Box

AUDIO SPECIFICATIONS

  • Sampling frequencies available: Programmable from 32 to 192 kHz
  • A/D and D/A converter resolution: 24 bits
  • Supported audio formats: PCM (8, 16, 24 bits), Float, IEEE754

Typical Audio Performance Measurements done at Fs=48 kHz unless stated otherwise, with filter on the 22 Hz ­ 22 kHz range

  • Frequency response (record + play): 20 Hz–20 kHz: ±0.3 dB
  • Channel phase difference: 20/20kHz: <0.2°/2°
  • Dynamic range (A­weighted):
    – Analog In: >104 dB
    – Analog Out: >110 dB
  • THD + noise 1 kHz at –2 dBfs:
    – Analog In: <–96 dB
    – Analog Out: <–96 dB
  • THD + N 1 kHz AES/EBU In w/ SRC: <–130 dB
  • Crosstalk (Analog in or out):
    – 1 kHz at 24 dBu: <–100 dB
    – 15 kHz at 24 dBu: <–90 dB

decelopment environments

  • Digigram management: np SDK (HR Runtime, PCM only)
  • Other management: Wave MME, ASIO, WASAPI, DirectSound, Alsa (all PCM only)
  • OS supported: Windows XP, 7, 8, 10, Server 2003, Windows Server 2008, Server 2012 (32 and 64 bits), Linux
  • Main on­board processing features (with np SDK): PCM and Float IEEE754, play, rec, real­time mixing, direct monitoring, level adjustment, 3­band parametric equalizer, maximizer, panning, cross­fade, punch-in/punch­out, scrubbing

Benefits

  • Low OPEX: low failure rate and high reliability
  • Low TCO & future­proofed
  • Ongoing product support: from Digigram and its Development Partners