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The
Digital Microphone Interfaces in general
Equipment that supports the AES 42 standard can process the output
signals of Solution-D microphones directly. In all other cases, the
DMI-2 or DMI-8 digital microphone interface is used. The DMIs
convert the AES 42 data format supplied by the microphone into an
AES/EBU signal.
The Interface is operated via the Neumann RCS remote control
software, which is installed on a desktop or laptop computer. The
computer is connected to the DMI via a USB port and a USB to RS 485
interface converter. If a large number of microphones is used,
several DMIs can be cascaded. In this case, each digital microphone
interface can be addressed individually.
In addition to a word clock input and output, the DMIs also have an
internal word clock generator. If no master word clock signal (e.g.
from a mixing console) is present at the input, the DMI internal
word clock is used automatically to synchronize the microphone
channels, and the signal is switched to the word clock output.
External commands such as "On Air" (red light) can be controlled
via a 9-pin user port.
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