DISCONTINUED Innes Auricon 4.1 PCI Analogue Sound Card






1 stereo balanced input and 4 stereo balanced outputs configurable as 2 mono inputs and 8 mono 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, Server 2008, Windows 7, Server 2008 R2, Windows 8, Server 2012 (certified for 2000, XP and Server 2003)


The Auricon 4.1 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 98, Windows ME, Windows 2000, Windows XP and Windows Server 2003. A driver providing basic wave functionality under Windows NT version 4 is also provided.

The Auricon 4.1 has four stereo outputs and one stereo input. The inputs and outputs can be reconfigured as separate mono channels, giving eight outputs and two inputs.

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 4.1 (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 :
4 balanced stereo or 8 balanced mono

Analog line inputs :
1 balanced stereo or 2 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

Windows 2000, XP, Server 2003, Vista, Server 2008, Windows 7, Server 2008 R2, Windows 8, Server 2012 (32-bit and 64-bit versions)

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

Microsoft driver certification:
Windows 2000, XP, Server 2003

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