Platinum™ IP3
Installation and Operation Manual
PX-HSRMX-OBG Frame Sync and Mux Output Module
© 2016 Imagine Communications Corp.
Proprietary and Confidential.
September 2016 | Page 188
An audio group cannot be divided. In Append embedding, the audio group is always added following the
last block in the ADS. If there is not enough room to append the audio group following the last block of
auxiliary data or audio in the ADS, no audio will be embedded.
Figure 80:
Append Embedding Mode Fails to Append When Auxiliary Data Exists in all Audio Groups
OverWrite Embedding
When you select Overwrite embedding, the module attempts to overwrite any existing audio data and
control packets of the same group number with the new audio data. This setting is valid only if the audio
group to be embedded already exists. If the new sample distribution does not exactly match the existing
audio data packet sample distribution, the embedder will mark some audio data packets for deletion
(DID word will be set to 180h).When you attempt Overwrite embedding and there is no previous audio,
no audio is embedded because there is nothing to overwrite.
Figure 81:
Overwrite Embedding Mode When There is No Pre-existing Audio
The following figure shows how overwrite embedding will appear in the ancillary data space when there
is auxiliary data where Group 1 should be inserted.
Figure 82:
Overwrite Embedding Mode When There is Auxiliary Data on Group 1
