The Auricon 4.4 from Sonifex is a PCIe (Express) card that provides 4 independent transformer-coupled stereo channels of analog audio input or output via 44-pin D connector to a Windows platform. Especially useful for audio workstations, automation systems, audio logging, and multichannel playout, the card is fully compatible with the Wave, DirectSound, DirectShow, MCI, and Core Audio APIs. Multiple cards may be installed in a single PC.
The playback topology consists of a master output level, mute control and peak meter, and input monitor level and mute controls for each of the line inputs. The record topology consists of a master input level, mute control and peak meter, and level controls and mutes for the physical input and digital loopback. The digital loopback allows the output of the card to be digitally mixed back into the input. The range on the input and output master controls and individual line controls is -96 to 0 dB.