User`s guide

User’s Guide MADI Router © RME 31
7.5.3 Bit Transparency
The Bit Transparency menu gives access to two settings that are related to the MADI
streams and to the matrices. The [OUT] encoder is used to access the two settings,
the [IN] encoder is used to change their value. A short text informs about the current
setting.
Stream Routing
Options:
Activate MADI receiver
Before routed to the selected output port, bit stream is recovered and decoded.
Content of MADI is left untouched.
This feature enables a complete signal regeneration and should be switched on
when using standard MADI signals. Incoming signals are decoded, re-clocked
and checked for errors. When an error is detected, the incoming signal is muted
for a duration of at least one second.
Bypass MADI receiver
Input port is connected to selected output port directly, as if setting a wire. No
decoding of bits, no interpretation.
If this setting is active, an incoming signal is amplified to a standard level and
then directly passed on to the output driver stage without any further processing.
This is required when the incoming MADI signal contains special invisible control
commands, out-of-spec data rates or violations of the MADI protocol.
The disadvantage is that the quality of the output signal depends on the quality
of the input signal, since the signal is passed on without any change. For the
maximum cable length, note that the cables to and from the router have to be
counted as one cable when this mode is active.
Channel Routing
Each individual mono channel of a MADI signal contains – aside from the audio data –
additional information, such as embedded control protocols or MIDI, channel grouping
information, status information and a check digit.
The following settings allow to pass on or by-pass this additional data: