DISCONTINUED Innes Auricon 2.2 PCI Analogue Sound Card


Auricon 2.2




  • 2 stereo balanced inputs and outputs configurable as 4 mono inputs and outputs
  • 24 bit A/D and D/A converters
  • Simultaneous Record / Play on each channel
  • Full Windows Wave and DirectX functionality
  • Supports Windows – 2000, XP, Server 2003, Vista, Server2008, 7, Server2008R2, 8, Server2012


The Auricon 2.2 is a professional-quality audio input-output card designed and manufactured in Australia by Innes Corporation Pty Ltd. It is supplied with DSP software and a Windows WDM driver to provide full sound card functionality under Windows 2000 and later systems.

The Auricon 2.2 has two stereo outputs and two stereo inputs. The inputs and outputs can be reconfigured as separate mono channels, giving four inputs and outputs.

The cards use 24 bit sigma-delta converters which pass data to and from the PC via a 32 bit bus mastering PCI interface. An onboard 32 bit digital signal processor provides audio buffering, sampling rate conversion, level adjustment and mixing functions. Sampling rates of 48kHz, 44.1kHz, 32kHz, 24kHz, 22.05kHz, 16kHz, 12kHz, 11.025kHz and 8kHz are supported with 32, 24,16 or 8 bit PCM data and may be set independently for each input and output channel. The Windows Wave, DirectSound and DirectShow API’s are supported, as are a variety of audio compression modes via the Windows Audio Compression Manager or other software compression systems.

XLR Breakout lead

As the card comes standard with 25-pin SUB-D connector, Innes Corporation offers a XLR Breakout lead for the Auricon 2.2 (pictured on the right). This lead is not automatically supplied with the card but can be purchased in addition. Should you require a breakout lead please specify when ordering.


Technical Specification

Technical Specification


Analog line outputs :
2 balanced stereo or 4 balanced mono

Analog line inputs :
2 balanced stereo or 4 balanced mono

Input impedance:
20k (balanced)

Output impedance:
40 ohms (balanced)

Maximum signal level (input and output):

Nominal signal level (configurable):
+8dBu, +4dBu, 0dBu

25-pin SUB-D

175mm length, 100mm hight

All Auricon and Digitorc cards will work on 3.3V and 5V systems

Audio Specifications

Sampling frequencies
48, 44.1, 32, 24, 22.05, 16, 12, 11.025, 8 kHz (other rates supported via Windows automatic sampling rate converter)

Sampling rate accuracy:
+/- 5ppm

A/D and D/A resolution:
24 bit

Software resolution:
32, 24, 16 or 8 bit

Frequency response at 48kHz sampling (input):
1Hz to 20kHz (+/- 0.2dB)

Frequency response at 48kHz sampling (output):
DC to 20kHz (+/- 0.2dB)

Signal to noise ratio (unweighted):
102dB (output to input analog loopback)

Distortion (1kHz, +16dBu):
< -100dB (output to input analog loopback)

Channel phase difference (1Hz – 20kHz):
< 0.5 degrees

Analog channel crosstalk:
< -110dB (1kHz), -80dB (20kHz)

Mixer Topology

Output master gain control:
+6dB to -90dB

Output sources:
Wave (kernel mixer), Midi, CD, Line Inputs

Output peak meter support:
Windows NT, ME, XP and Server 2003

Input master gain control:
+6dB to -90dB

Input sources:
Line Inputs, Digital Loopback (configurable as mixer or selector)

Input peak meter support:
Windows NT, ME, XP and Server 2003

Operating System Support Platforms:
2000, XP, Server 2003, Vista, Server 2008, 7, Server 2008R2, 8, Server 2012

Supported APIs:
MCI, Wave, DirectSound, DirectShow, MIDI (playback only)

Product Resources

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