RME Introduces ADI-192 DD Format/Sample Rate Converter
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Front Panel (Rendering)
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Rear Panel (Rendering)
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April 21, 2005
The ADI-192 DD is the successor to RME's ADI-8 DD, not only offering considerable improvements over the original, but also adding a number of new and unique features:
- Supports 192 kHz with ADAT, TDIF and AES
- 8-channel sample rate conversion up to 192kHz
- Sample Rate Conversion can be selected for AES, TDIF, or ADAT
- Sample Rate Conversion supports levels of up to +6 dBFS
- 8-channel Sample Rate Conversion without phase deviation (sub-sample synchronous)
- SteadyClock for maximum jitter suppression and clock regeneration
- Complete triple format converter AES/TDIF/ADAT with added SPDIF TOSLINK I/O
- Direct support for Double and Quad Wire, S/MUX and Double/Quad Line
- Special TDIF word clock output
The unit consists of three 8-channel format converters with 24 bit audio resolution. The three output formats - ADAT, TDIF and AES - independently access the same three input formats. Thanks to free selection of inputs, signals can be copied and distributed between all connected devices - without the need to change any cables. Four XLR AES/EBU inputs and outputs each, and two ADAT and TDIF inputs and outputs allow full 8-channel operation even at 96 kHz / 24 bit. At 192 kHz, there are eight AES channels and four ADAT and TDIF channels.
Due to the unlimited input selection, the unit not only transfers data to the same output format, but can i.e. also be operated as quad AES/EBU sample rate converter.
The ADI-192 DD supports S/MUX, Double/Quad Wire and Double/Quad Line, making it compatible with all methods of increasing sample rates by splitting/distributing samples on all platforms. The unit can also convert between these formats, even along with SRC. If more than 8 channels are required, several units can be cascaded and synchronized sample-accurately by word clock.
If only one of the four AES inputs is used, the device will copy these two channels to the other three AES outputs. If only one ADAT or TDIF input is used, the second ADAT or TDIF output will carry an identical signal, which can be fed to another ADAT or TDIF device. This also works from ADAT to TDIF or vice versa.
48 LEDs display the current status of the incoming and outgoing signals and the processing performed within the unit. The AES output signal can be given a consumer or professional status. The first AES output (channels 1/2) is also available as optical TOSLINK.
RME's SteadyClock offeres efficient jitter reduction, so any clock signal can be improved and refreshed, and subsequently be used as reference clock at the word clock output. Additionally the last valid sample frequency will be retained in case of a loss of the input signal.
For more information, visit their web site at www.rme-audio.com. | 
