MMDSP-AES Interface Card.
This is a version of the MM-DSP DSP card that supports the AES3 format. This card has 16 2-channel inputs (with sample-rate converters) and 16 2-channel outputs. You can think of the MMDSP-AES' inputs/outputs as having 32 by 32, since an AES stream by it's nature is a stereo pair. Peavey makes a 1 rack-unit product called the 16XT that provides the passive AES/EBU transformer balancing that the additional EBU (European Broadcast Union) specification calls for.
The MMDSP-AES can also accept encoded digital surround from film optical sources for routing to external decoders. Once the encoded audio channels are extracted, you can route the analog or AES audio back through the MediaMatrix for additional processing and distribution to amplifiers. One thing to note about handling AES with encoded audio: You must not route this audio through any other devices other than Standard Routers and input/output blocks, nor must you ever attenuate the signal (0dB through the system). Also you have to keep the two channels paralleled at all times. To properly route the signals, you can use two standard routers and control-mode group their controls to switch both AES channels simultaneously (In essence, creating a "stereo" router). This would be useful in theater applications where there are only a few digital decoders and you want to have a simple way to assign different surround decoders to different screens without moving any equipment or wiring.
Although MediaMatrix doesn't decode digitally-encoded surround, it can do lots of processing on the decoded audio including additional matrix decoding or sound enhancement with the kosmos device. We don't provide matrix decoding devices, but you could design your own or purchase existing surround devices (http://www.mkpe.com/products/index.htm)
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