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Digigram VX-442HR
PCI Sound Card


 The VX442HR multichannel sound card offers the benefits of Digigram's HR (High resolution) series of VX sound cards.
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 The VX442HR multichannel sound card offers the benefits of Digigram's HR (High resolution) series of VX sound cards.

The HR series is the new industry standard for the most demanding applications in broadcast such as production, on-air, permanent playback, and logging. State of the art sound quality, more features, and greater flexibility for custom developments make the new generation the Number 1 choice for pro audio manufacturers and independent software vendors.


  • VX sound card with 4/4 analog I/Os and 4/4 digital I/Os
  • 24-bit/192 kHz converters
  • Hardware sample rate converters on all inputs for simultaneous recording of digital signals with different sample frequencies
  • 66 MHz/64-bit PCI interface
  • Maximum input and output level: +24 dBu
  • Comprehensive set of drivers: Digigram np, WDM DirectSound, Wave, ASIO
  • Short-length PCI format (only 175 mm/6.875 inches long)
  • Companion board connector for Digigram or custom add-on cards
  • Universal PCI compatibility (3.3V ready)



  • Bus/Format: 4-bit/66 Mhz Universal PCI, PCI and PCI-X compatible, master mode
  • Size: 175 mm X 99 mm X 20mm, requires a single PCI slot, short-length PCI slots compatible
  • Digital Signal Processor: Motorola 56311 at 150 MHz


  • Balanced analog line inputs (mono): 4
  • Maximum input level / impedance: +24 dBu / > 10 kO
  • Sampling frequencies available: Programmable from 8 to 192 kHz
  • A/D and D/A converter resolution: 24 bits
  • Digital inputs (stereo): 2 AES/EBU with hw Sample Rate Converters 1:3 to 3:1, up to 96 kHz Converters
  • Programmable input gain: analog and digital
  • PCM recording (encoding): 8, 16 or 24 bits
  • Other inputs:
      -  AES/EBU Sync (up to 192 kHz)
      -  Word clock (up to 96 kHz)
      -  LTC
      -  Video
  • AES11 synchronization Yes


  • Analog line outputs (mono): 4 servo-balanced
  • Maximum output level / impedance: +24 dBu / < 100 O
  • Digital outputs (stereo): 2 AES/EBU, up to 192 kHz
  • Programmable output gain: analog and digital
  • Other outputs:
      -  Wordclock
      -  Interboard sync
      -  Companion board connector


  • External connector: 62-pin SUB-D
  • Digigram accessories available: Breakout cable
  • Internal connectors: Inter-board Sync and Companion Board Link

Audio performance measured at Fs=48 kHz

  • Frequency response (record + play): 20 Hz -20 kHz: ±0.2 dB
  • Dynamic range (A-weighted):
      -  Analog In: >104 dB
      -  Analog Out: >104 dB
  • THD + noise 1 kHz at –1 dBfs (A-weighted):
      -  Analog In: <–97 dB
      -  Analog Out: <–94 dB
  • Channel phase difference: 20/20kHz: 0.2° / 2° -
  • Crosstalk (Analog in or out)
      -  1 kHz at 22 dBu: <–100 dB
      -  15 kHz at 22 dBu: <–85 dB

Development environments and on-board processing

  • Supported OS Management: Windows XP, 2003 Server, Vista, 2008 Server, Seven (32 bits and 64 bits)
    np SDK, ASIO, DirectSound (all: PCM only)
  • Main on-board processing features (with np SDK): PCM play, rec, direct monitoring, real-time mixing,level adjustment,
    panning, cross-fade,punch-in/punch-out, crubbing, frequency conversions

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