Operating instructions

When one Dolby Digital encoder is enabled, it is only possible to enable one other encoder (either Dolby Digital or MPEG-

1 Layer II).

Only one of the Dolby Digital encoders may be configured to allow 5.1 encoding, ie, metadata controls coding mode can only be

enabled on one encoder.

Consequently it is only possible to transcode two programs in the Dolby E stream if one of the encoders is Dolby Digital. It is

possible to transcode from a 5.1+2 Dolby E stream to 5.1 Dolby Digital and 2.0 MPEG-

1 Layer II, or from a 5.1+2 Dolby E stream to

5.1 Dolby Digital and 2.0 Dolby Digital

EN8100 SD MPEG-2 VCM (VP/HWO/EN8100/ENC)

The following topics describe the setting up of the VP/HWO/EN8100/ENC Video and Audio components.

Video Component Configuration

Audio Component Configuration

NOTE: Changes to the configuration of the unit can cause the output to be interrupted while the new settings take effect. See

Technical Specifications > EN* VCM > Video > Operating Times for more information.

EN8130 SD H.264 VCM (VP/HWO/EN8130/ENC)

The following topics describe the setting up of the VP/HWO/EN8130/ENC Video and Audio components.

Video Component Configuration

When set to ‘Off’, the user-specified coding mode always applies. For example if the coding mode is set to 2/0

and the decoder output is 5.1, a downmix from 5.1 to 2/0 will be performed.

Override Metadata

Parameters

Determine which metadata parameters are overridden by preset metadata, even if live metadata is present.

‘Off’ will always use the decoder metadata (if present).

‘All’ will override all metadata parameters with the user-specified metadata preset.

‘Compression Profile’ will override the compression/ dynamic range profile with the values in the preset.

‘Dialogue Normalization’ will override the dialnorm parameter in the metadata with the value in the preset.

‘Comp Profile and Dialnorm’ will override both the compression/dynamic range profile and the dialnorm

parameter with the values in the preset.

Metadata Reversion

Mode

Determines which metadata is used upon loss of live metadata.

‘Last Used’ will revert to the last values in the decoded bitstream. If no valid values have ever been present in

the decoded bitstream then the preset is used.

‘Preset’ will revert to the user-specified preset.

Metadata Preset Dolby metadata preset number (1 to 8).

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