SEL-1FS1/SEL-2FS1 and SEL-1XD1/SEL-2XD1
Installation and Operation Manual
Installation, Operation, and Specifications
© 2015 Imagine Communications Corp.
Proprietary and Confidential.
Version 2.8 | Page 70
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 marks some audio data packets for deletion (DID
word is set to 180h).
Note:
To avoid sample distribution issues, activate the
ADS Clean
feature in the
Control
section of the
Audio Embedder
.
When you attempt
Overwrite
embedding and there is no previous audio (as below), it returns an error
because there is nothing to overwrite.
Figure 47:
Overwrite Embedding Mode When There is No Pre-existing Audio
The figure below shows how overwrite embedding appears in the ancillary data space when there is
ancillary data but no pre-existing group 1 audio.
Figure 48:
Overwrite Embedding Mode Failure
