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Archive News and Press Releases 2001

NEXUS XER for AES42 digital microphones

The German manufacturer Stage Tec shows a new AES input card which supports the newly standardized AES 42 protocol for digital microphone receivers.

The NEXUS AES/EBU Receiver XER card allows a digital microphone to be connected directly to the NEXUS digital audio routing system. Implemented in a large NEXUS audio network, the XER card can be used by all connected base devices.

The new XER card offers digital phantom powering for digital microphones as well as remote control of microphone functions such as pattern control, pre-attenuation, synchronisation modes, low cut filter, phase change, and light control. The card reads and monitors the factory ID, serial ID, and model ID of the connected digital microphone. It is also prepared for future developments such as digital wireless microphones where it shows parameters like link loss, battery low, and squelch.

For Stage Tec, it was an easy step to implement the new AES 42 protocol as the company already has a five-year-old experience with digital microphones. Stage Tec even can refer to some large-scale installations with digital microphones, such as the German Reichstagsgebäude where nearly 220 digital beyerdynamic microphones are in daily use on the digital audio router NEXUS and the digital mixing console CANTUS. The new XER card now supports the new Neuman Solution D which is also compatible to the AES 42 standard.

Used as a normal AES/EBU input card for digital line sources, the new XER card accepts input signals with sample rates up to 192 kHz. The built-in sample rate converter converts them down to sample rates from 44.1 kHz to 96 kHz with a resolution of 24 bits. The internal DSP power can calculate digital gain settings as well as a digital limiter, providing a safe overload protection.

The complete range of Stage Tec products, including the CANTUS digital audio mixing console, the NEXUS digital routing system and the TrueMatch RMC 28-bit A/D converter will be on show on booth 9.1 D01.