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• Dolby PMT Type: this parameter controls how Dolby AC-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 Descriptor from EN 300 468 annex D).
o ATSC: Dolby Audio is signaled as per ATSC A/53 Part 3 (stream_type 0x81).
However, the 9223 is currently unable to generate the ATSC AC-3 Descriptor.
If the Output Protocol in the Encoder Connections Tab is set to RTMP, the PMT
Information fields will not be displayed as RTMP does not use the Transport
Stream container.
Audio Encoder Specific Configuration
The appearance of this control depends on the Audio Encoding setting in the Basic Tab – Audio
Configuration.
MPEG-1 Layer II Configuration
The parameters are:
• 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.
• Copyright: Controls the state of the Copyright flag in the audio elementary stream. This
setting does not affect the actual audio encoding.
• Emphasis: Controls the state of the Emphasis flags in the audio elementary stream. This
setting does not affect the actual audio encoding. The available values are None,
50/15 us, and ITU-T J.17.
Advanced Tab – Additional Audio Channels
When Secondary Audio is set to Enabled, or Additional Audio Channels are enabled, the
following changes take place:
• Additional sets of controls are displayed in the Encoder Advanced Tab, corresponding to
each of the enabled audio channels. Each set operates independently as described in the
previous section.
• If Secondary Audio is set to Enabled, no Advanced Audio controls are displayed in the
Advanced Tab for Encoder 2.
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AAC-LC Configuration
9223-OM (V2.5.0)
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