Operation Manual

 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 B264 is currently unable to generate the ATSC AC-3 Descriptor;

please contact Niagara Video if this is an issue in your network.

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

AAC-LC 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.