GEB900 - 3Gb/s, HD, SD 8 channel enhanced digital audio embedder with ‘TWINS’ dual channel function

Description

The GEB900 is a 3GB/s SDI, HD SDI and SD SDI digital audio embedder. It is capable of inserting or appending up to 4 free-running AES/EBU digital audio channels (8 mono channels). The core of these modules consists of four embedder-blocks Emb_A, Emb_B, Emb_C and Emb_D and 2 delay blocks. These blocks can be used in series for a single SDI 4 group embedder with up to 1 sec of video offset delay, or in parallel for 2 individual channels with each 2 group embedders and individual 500ms offset delay in a fully separate (clock lock*) channel TWINS function. Each block is capable of embedding 4 audio channels into one group, which gives a total of 16 audio channels into four (or 2x2) groups. The TWINS mode is a single command operation and controls 4 individual selection switches as can be seen in the block diagram.

In addition, four ADD-ON cards can be connected to create a routing matrix. The architecture of Emb_A to Emb_D blocks is identical. The local AES inputs can be controlled to adjust Phase, Gain and delay (on the fly).

The GEB900 can be future upgraded to GEB990.

Specifications

•  2 SDI inputs (with auto switch on carrier loss, and switch back function

• Compatible with the following input formats (auto selecting)

• • 1080p/59.94
  • 1080p/50
  • 1080i/59.94
  • 1080i/50
  • 1080p/30
  • 1080p25
  • 1080p24
  • 1035i/59.94 

  720p/59.94  720p50 720p30 720p25 720p24 SD525 SD625

• Dual offset audio delay adjustable between 0 and 500ms
• Dual (TWINS) or single channel SDI mode when sources are clock locked (not phase locked*)
• 4 AES/EBU inputs with sample rate converter (available with 110 Ohm and 75 Ohm inputs)
• AES/EBU inputs accept synchronous streams like Dolby E and asynchronous up to 96kHz sampling via the built in Sample Rate Converters.
• Auto SRC-off for bitstream sources like Dolby E
• 8 extra AES/EBU inputs through the Synapse bus
• 2 (2x1) 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 5000ms
• 16 extra audio channels (4 groups) with ADD-ON card for input multiplexing
• 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 SDI 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 (BHX18 or BHX18D)