Chapter 4 Electra 9200 Specifications
VITC Support
© 2015 Harmonic Inc. All rights reserved.
30
Electra 9200, Rev O
VITC Support
The Electra™ 9200 supports extraction of Vertical Interval Time Code (VITC) data placed into
VANC or HANC per SMPTE RP188. The VITC data is used to synchronize DPI events on both
HD and SD encoders. HD encoders receive VITC input carried in the Vertical Ancillary data
space (VANC) or Horizontal Ancillary data space (HANC) of a 292MB stream.
Audio Features
This section describes audio specific features supported by the encoder. Note that this does
not include audio features that may be supported by the optional audio modules. Please refer
to the Audio chapter for that information.
Table 4–4: VITC Support
Feature
Support
Closed Captioning
n
CEA 608 from Line 21
n
CEA 708 VANC extraction per SMPTE 334M
n
CEA 708 external caption server per SMPTE 333M
n
608 to 708 conversion
Ancillary data and VBI
Digitized waveform or VANC extraction per SMPTE 2031
AFD and Bar, VITC, AMOL, TV Guide, WST (Teletext),
Inverted WST, WSS, VPS, PSIP Spooling
Table 4–5: Audio Features
Feature
Support
Input Type
n
Embedded in SDI
n
MPEG-2 Transport Stream
Number of Channels
(native encoding)
Up to 3 stereo pairs or one 5.1 (native encoding) multichannel per
video service
Audio Formats
n
Audio Compression types:
- MPEG-1L2 3x 2.0 encodes
- AC-3; 3x 2.0 encodes, 1x 5.1 encode
a
- AAC/HE AAC (v1 and v2); 3x 2.0 encodes or 1x 5.1 encode
(V1 only)
a
n
Audio Pass-through types:
- AC-3; 2.0 or 5.1
- E-AC-3; 2.0 or 5.1
- Dolby E
# of Groups/Pairs
Select from up to eight pairs from any four groups (1-4)
Operating Modes
Mono, stereo, joint, dual mono
Encoding Bit Rate
n
MPEG-1L2 56 to 384 kbps
n
AC-3: 56 to 640 kbps
n
AAC: 32 to 640 kbps / HE AAC: 32 to 128 kbps
Audio sampling
frequency
n
32 kHz
n
44.1 kHz
n
48kHz
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