• Overview
  • Specifications


Key Workflow: PCI play-only stereo sound card with on-board processing for on-air automation, and other mission-critical applications.

PCX22HR is the reference play-only stereo sound card with on-board processing designed for operating in continuous 24/7/365 use-environments, such as radio automation. Its on-board processing guarantees that audio is always processed whatever the PC CPU load is, which gives the system absolute reliability and responsiveness .

At a glance

PCX22HR is the play-only stereo model of the PCX series of sound cards. Thanks to its broadcast grade specifications, its on-board processing and unrivaled reliability, PCX22HR is the references stereo sound card used in radio automation applications designed by Development Partners, who use our appropriate software development kit (SDK) to benefit from all the on-board functionalities of the card. Available as part of the systems delivered by Digigram Development Partners, PCX22HR can also be used as a linear PCM sound card with software applications based on standard driver interfaces.

  • PCI play-only stereo sound card designed for broadcast radio
  • On-board processing available through Proprietary Digigram SDK: MPEG audio, mixing of PCM and MPEG, cross-fades, real time time-scaling
  • Proprietary Software Development Kit for controlling the on-board features
  • Interoperable with most third party software applications for audio production under Windows, through DirectSound, Wasapi, and ASIO
  • PCX cards are sold to Development partners: they design and sell the applications that include these cards

Key features

  • Stereo sound card with on-board processing: MPEG audio, mixing of PCM and MPEG, cross-fades, real time time-scaling, 3-band parametric EQ, Maximizer
  • Dedicated to playback
  • Two balanced analog outputs, +24 dBu max level
  • One  AES/EBU output
  • Adjustable output analog and digital gains
  • One AES11 sync input
  • Two GPI (dry contact) and two GPO (relays)
  • Support for Windows 32-bit and 64-bit (Digigram proprietary SDK, WDM kernel streaming, DirectSound, Wasapi, ASIO)
  • Breakout cables with XLR connectors for audio connectivity


  • Bus/Format: PCI 2.2, “Universal PCI 32-bit/66 MHz” master mode, “short-length” PCI format compatible, PCI-X compatible
  • Size: 175 mm x 99 mm x 20 mm
  • Power requirements (+3.3V/+5V / +12V / –12V): 0.30 A / 0.18 A / 0.18 A / 0.08 A
  • Operating: temp / humidity (non-condensing): 0°C / +50°C • 5% / 90%
  • Storage: temp / humidity (non-condensing): -5°C / +70°C • 0% / 95%


  • Programmable input gain:AES/EBU Sync (up to 200 kHz), 2 GPI (dry contact), LTC
  • AES11 synchronization


  • Analog line outputs (mono): 2 servo-balanced
  • Maximum output level / impedance: +24 dBu / < 100 kOhms
  • Digital outputs (stereo): 1 AES/EBU, up to 200 kHz
  • Programmable output gain:
    analog: from –24 dB to +24 dB
    – digital: from –110 dB to +18 dB
  • Other outputs:1 stereo headphone output (600 W) 2 GPO (relay, 0.5 A, 48 VCC)


  • Internal connector: inter-board synchronization
  • External connectors:
    – 15-pin Sub-D for analog I/Os
    15-pin HD Sub-D for digital I/Os, Sync., and GPIO
    –  1 mini jack headphone stereo output (3.5 mm TRS female jack)

Audio specifications

  • Sampling frequencies available: Programmable from 8 to 192 kHz
  • A/D and D/A converter resolution: 24 bits
  • Supported audio formats: PCM (8, 16, 24 bits), Float IEEE754, MPEG (Layer I, II, and III up to 48 kHz)

Analog audio performance

  • Frequency response (record + play):
    at 48 kHz: 20 Hz – 20 kHz: +0 /-0.3 dB
    – at 96 kHz: 20 Hz – 40 kHz: +0 /-0.4 dB
    – at 192 kHz: 20 Hz – 80 kHz: +0 /-1.1 dB
  • Channel phase difference: 20/20kHz: <0.2°/2°
  • Dynamic range (A-weighted):
    – analog In: >104 dB
    – analog out: > 106 dB
  • THD + noise 1 kHz at -2 dBfs:
    – analog In: >-97 dB
    – analog out: <-95 dB
  • Crosstalk (Analog in or out):
    1 kHz at 24 dBu: <–115 dB
    – 15 kHz at 24 dBu: <-100 dB

Development environments

  • Digigram management under Windows: np SDK
  • Other management under Windows:  Wave (PCM & MPEG Laye II), WASAPI, ASIO, and DirectSound (all PCM)
  • OS supported: from Windows 7 and Windows server 2003 (32-bit and 64-bit versions)
  • Main on-board processing features (with np SDK): PCM play & rec, MPEG Layers I & II play & rec, Layer III play, Float IEEE754,direct monitoring, real-time mixing, level adjustment, panning, cross-fade, punch-in/punch-out, scrubbing, time-stretching, pitch-shifting, 3-band parametric equalizer, maximizer, format and frequency conversions


  • Low CAPEX: features and price adapted to playback-only systems
  • Low OPEX: due to low failure rate and driver reliability
  • Increased system efficiency: guarantee of low latency operations and of processing power availability
  • Ongoing product support: from Digigram and its Development Partners
  • Low TCO and future-proofed