User’s Guide DMC-842
© RME
21
10.6 Follow Clock (FC)
Default: Off
Available settings: On, Off
The signal at the word clock or AES input can be Single, Double or Quad Speed, the DMC-842
can use it in any case, independent of its current clock range. When activating the option
Follow
Clock
the DMC-842 follows the input clock 1:1. At 96 kHz the DS LED will light up automatically,
at 192 kHz the QS LED. This function is automatically deactivated for the I64 MADI Card, as it
is not possible to detect the sample rate range of the MADI-embedded audio data.
10.7 Word Clock Out (Co)
Default: FS
Available settings: Si, FS
Si stands for Always Single Speed, FS for the current sample rate or Follow Sample rate. In
default state (FS) the word clock output follows the current sample rate up to 192 kHz. Selecting
Si causes the word clock output to always stay within the range of 32 kHz to 48 kHz. So at 96
kHz and 192 kHz sample rate, the output word clock is 48 kHz.
Note: A reliable sample-accurate synchronicity between multiple devices having digital inter-
faces in S/MUX technology (ADAT and MADI*) at sample rates in the Double Speed and Quad
Speed range is only possible when all units are synced by Single Speed word clock. Because of
the S/MUX method the device else can not know which of the incoming 2 (DS) or 4 (QS) word
clock edges is the right one.
* With the DMC-842 this limitation is also valid for the AES output, as the device internally handles all the data streams
in S/MUX mode.
10.8 Peak Hold (Ph)
Default: Off
Available settings: On, Off
The level meter can be configured to hold the peak value permanently. A reset is done by turn-
ing the Encoder, even when no other function had been selected before.
10.9 Digital Output (do)
Default: 42
Available settings: 42, oP
This option relates to the use of the I64 MADI Card. In default state (42 = Mic) the XLR input
signal is available at all three digital outputs. Selecting oP (Option) an eight-channel group of
the MADI input signal is sent to the ADAT/AES outputs. With this the MADI connection can also
be used as return path. Sending audio via MADI to the DMC-842, the audio becomes available
at the DMC-842’s digital outputs ADAT/AES. The MADI output continues to carry the XLR input
signals and the fed-through input data.
Note: The 8-channel group sent to ADAT/AES is defined by the currently chosen ID.
Summary of Contents for DMC-842
Page 5: ...User s Guide DMC 842 RME 5 User s Guide DMC 842 General...
Page 12: ...12 User s Guide DMC 842 RME...
Page 13: ...User s Guide DMC 842 RME 13 User s Guide DMC 842 Usage and Operation...
Page 29: ...User s Guide DMC 842 RME 29 User s Guide DMC 842 Inputs and Outputs...
Page 39: ...User s Guide DMC 842 RME 39 User s Guide DMC 842 Technical Reference...
