Cobalt Co9992-4ENC-4K-HEVC Software-Defined Broadcast Encoder - Manual (Page 72)

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
CRC: Enables/Disables CRC insertion in the audio elementary stream. This is normally
left disabled (CRC off).

Original/Copy: Controls the state of the Original/Copy flag in the audio elementary
stream. This setting does not affect the actual audio encoding.
Audio Configuration Advanced Tab – Dolby
The Dolby advanced parameters for Mono (1/0) and Stereo (2/0) operation are shown below.

Dolby PMT Type: this parameter controls how Dolby AC-3/EAC-3 audio is signaled in
the PMT. The two choices are:
o DVB: Dolby Audio is signaled as per ETSI TS 101 154 Appendix C (stream_type
0x06 with the AC-3 or EAC-3 Descriptor from EN 300 468 annex D).
o ATSC: Dolby Audio is signaled as per ATSC A/53 Part 3 (stream_type 0x81 for
AC-3 and 0x87 for EAC-3). However, the 9992-ENC is currently unable to
generate the ATSC AC-3 Descriptor; please contact Cobalt Digital if this is an
issue in your network.

Dialog Normalization (dB): Enter the value to align the average loudness to provide a
consistent level. The default value for disc authoring or Internet is –31 dB and for
broadcasting –24 dB (ATSC), –23 dB (EBU).

Line DRC: Select the DRC (Dynamic range control) from drop-down menu; options are
None, Film Standard, Film Light, Music Standard, Music Light, or Speech .

RF DRC: Select from drop-down menu; options are None, Film Standard, Film Light,
Music Standard, Music Light, or Speech .

Dolby Surround Mode: Select from drop-down menu; options are Not Indicated ,
Dolby Surround Disabled , or Dolby Surround Enabled .

Original/Copy: Controls the state of the Original/Copy flag in the audio elementary
stream. This setting does not affect the actual audio encoding.

Copyright: Controls the state of the Copyright flag in the audio elementary stream. This
setting does not affect the actual audio encoding.