Platinum™ IP3
Installation and Operation Manual
Multichannel Audio Digital Interface (MADI) Modules
© 2016 Imagine Communications Corp.
Proprietary and Confidential.
September 2016 | Page 206
By default, audio encapsulated into the MADI transport stream is locked to the same reference as the
TDM receiver.
Using the TDM reference for MADI (default option)
If you select the same reference for MADI as for TDM ("Same as TDM Ref" option), non-PCM data such
as Dolby-E or Dolby-D can also be encapsulated into the MADI transport stream.
Using a separate (non-TDM) reference for MADI
If the reference signal for MADI is different than the one used for TDM locking, channels conveying non-
PCM data (such as Dolby-E/D) are destroyed. Non-PCM data becomes unusable because of a sample-
rate conversion process that transfers received TDM data into a new clock domain (MADI). As a
workaround - for example, when you need to lock the TDM data to a video reference - lock the MADI
audio data to an unrelated 48kHz DARS reference.
TDM Input
The
TDM Input
section reports on audio presence and format for each of the 128 mono audio channels
that can be received by the TDM receiver. Possible Audio formats are PCM, non-PCM, Dolby-E, and
Dolby-D.
