HED130 - HD, SD embedded domain Dolby E to Dolby Digital (plus) transcoder with audio shuffler and audio description processor (3Gb/s upgradeable)

Description

The HED130 is a embedded domain Dolby E to Dolby Digital or Dolby Digital Plus transcoders with fully routable Audio Description processor. This processor uses a stereo track as main program (input 1-2 of the AD processor) and mixes the AD track triggered by the mix enable track (input 3-4 of the AD processor). The output of the AD processor can be routed to any of the Dolby digital encoder inputs or any of the normal PCM channels of the 16 channel embedder. Simultaneous encoding of 5.1+2.0 or 4 individual stereo channels (languages) to 4 Dolby Digital (Plus) 2.0 streams is possible.B

The new Quad Speed audio bus allows for implementation of ‘in between’ audio processing. This means that we can stream the decoded Dolby E audio to a Quad Speed Audio ADD-ON card like the DLA44 or DLA42, process this audio and send it back to the G/HED130 for encoding into Dolby Digital or Dolby Digital plus.

The ADD-ON card does not need a connector panel and all audio routing is performed inside the Synapse frame by just placing these cards in adjacent slots.

The HED130 can be future upgraded to GED130. This allows for staged implementation of HD infrastructures and spread the cost over multiple budget years.

Features

• Dolby E decoding (no Dolby Digital Decoding)
• Encoding of up to 4 times 2.0 Dolby Digital (Plus) outputs, or 5.1 Dolby Digital (Plus) + 2.0 Dolby Digital (Plus)
• Audio Description processor with free routable I/O
• Dolby Pro Logic II encoding on the 2.0 channel
• Downmix of 5.1 to 2.0
• S2020 metadata handling
• 2 SDI inputs (with auto switch on carrier loss, and switch back function)
• Compatible with the following input formats (auto selecting):

• Offset audio delay adjustable between 0 and 500ms
• Quad Speed Audio ADD-ON bus for bidirectional audio processing
• 2 SDI + embedded audio outputs 
• 8 presets that configure all 16 input channels at once. controlled by GPI or ACP (Cortex)
• Append and overwrite modes
• Audio level and phase control 
• Audio offset delay up to 5000 ms
• Peak detection 0dBFS
• Silence detection with threshold (-100 to -20dBFS) and time control (1 to 255 sec)
• Transparent for ATC time code RP188, RP196, RP215
• Locks to Tri-level, Bi-level syncs or input 
• Full control and status monitoring through the front panel of the SFR04/SFR08/SFR18 frame and the Ethernet port (ACP)
• Optional 1 or 2 fiber inputs, 1 or 2 fiber outputs or a fiber in and output (replacing 1 SDI in and output) on the I/O panel
• Optional relay bypass (BHX18D)

Caution: The E decoding latency is 4 frames