Up/Downconversion with Background Keying

Transcription

1 -XC Densité Crossconversion Up/Downconversion with Background Keying Up/downconversion with background keying using and HMP-1801: The XVP family of interfaces features a background keying capability which allows side panels or letterbox black bars, introduced by upconversion or downconversion, to be filled with video or graphics using the HMP-1801 media player module. Upconversion with background keying using and HMP-1801 PGM HMP-1801 Solid state media player background -I Up converter Side panel keyer PGM / media player Up/down/cross converter Downconversion with background keying using and HMP-1801 HMP-1801 PGM PGM Solid state media player background Down converter Side panel keyer -I -I / media player Up/down/cross converter 1

2 -XC Densité Crossconversion Frame Accurate Aspect Ratio Conversion with AFD Frame accurate Aspect Ratio Conversion (ARC) can be performed automatically using signaling based on the Active Format Description (AFD) standard. AFD data can be easily in a signal by the Densité XVP or family, and by the EAP-3901 embedder. With AFD, original image information is maintained throughout the entire conversion for optimal viewing following 4:3 and 16:9 aspect ratio conversion. For example, ing three input source formats (16:9, 16:9 and 4:3 ) in a typical / hybrid plant results in six different output possibilities. However, using automatic aspect ratio control based on AFD will prevent the ARC errors that may occur with manual control. 16:9 EAP-3901 AFD inserter Routing master control 16:9 sources 16:9 Upconverted 16:9 upconvert downconvert Upconverted 4:3 Auto ARC AFD re-insert Auto ARC AFD re-insert 16:9 sources EAP-3901 AFD inserter 4:3 Downconverted 16:9 -I routing Master control EAP-3101 AFD inserter 4:3 16:9 or 16:9 4:3 sources 4:3 4:3 aspect ratio conversion with AFD 16:9 aspect ratio conversion with AFD 4:3 16:9 4:3 16:9 With AFD (desirable) 4:3 With AFD (Desirable) Full frame UP Pillarbox DOWN Full frame X Postage stamp Without AFD (undesirable) 16:9 Letterbox UP Full frame X Postage stamp Without AFD (Undesirable) 2

3 -XC Densité Crossconversion Incoming Feed Processing Using the significantly reduces the amount of equipment required for incoming feed ing. A single replaces multiple single function devices to provide decoding, ing and or Plus encoding. ROUTER Video + converter modules Demux module Video modules Mux module FIBER OR MPEG TX or (AC-3) Traditional approach to decoding and or Plus encoding using multiple devices. 3G/ 3G or or Embedded or AES AES Using a single 3G// up, down and cross converter with or for incoming feed ing. Incoming Feed Problems Remote feeds need to be adapted to station infrastructure Multiple formats and synchronization: Mixed up tracks Lip sync and encoded inputs 5.1 Loudness level Receiving or signals at different times of the day Receiving 1080i into 720p plant (or vice versa) Providing 16:9 and 4:3 aspect ratio conversion Features Frame synchronization, full proc controls, color correction and legalizer Extraction, ing and re-insertion for up to 4 groups Video to match and fixed track mixing and shuffling Discrete inputs/outputs handled using complimentary modules Dolby Metadata insertion, and will without compromising encoded signal Decode or to discreet PCM channels downmix from 5.1 to a Lt Rt or Lo Ro 2 channel signal Stereo to 5.1 upmixing using Linear Acoustic technology Automatic loudness control Built-in up and downconversion automatically converts current input to house format Built in 720p to/from 1080i crossconversion eliminates need for costly external converters Automatic, frame accurate aspect ratio conversion using signaling, based on the Active Format Description (AFD) standard Background keying capability to fill side or top/bottom panels with graphics 3

4 -XC Densité Crossconversion Flexible 5.1 Processing The can provide very versatile ing sequences, due to the flexibility of the optional s. The s include decoding, decoding, encoding, and Plus encoding, Linear Acoustic upmax 2.0 to 5.1 upmixing and automatic loudness control (ALC). Two s can be fitted to an or. All channels created by the modules are preserved, and can be selected in the output shufflers and mixers for embedding or discrete AES outputs. Dolby, ALC or upmixing Dolby, ALC or upmixing / (AC-3) decoding, automatic loudness control (ALC) or upmixing (or a different combination of these s) used in parallel ahead of ing. Dolby or ALC Upmixing / (AC-3) decoding, ALC or upmixing (or a different combination of these s) followed by upmixing ahead of ing. Dolby, ALC or upmixing or / (AC-3) decoding, ALC or upmixing followed by ing, and subsequently or (AC-3) encoding. and (AC-3) encoding (or a different combination of these s) used in parallel after ing. On-board ALC or Digital decoding, ALC followed by or encoding. 4

5 -XC Densité Crossconversion Decoding, Automatic Loudness Control, Upmixing and (AC-3) Encoding The can be combined with the DAP-1781 for the most advanced multichannel ing. As indicated in the upper diagram, this combination can provide decoding, automatic loudness control (using Linear Acoustic ing), upmixing and (AC-3) encoding, while keeping /video tracking on the output. If upmixing is not required, this can be accomplished with a single signal or card using Grass Valley ALC (lower diagram). ROUTING + Demux Frame sync & Video Up/down/ cross ARC with AFD Mux + ALC + upmix Video match Compress/limit/ expand (AC-3) encode DAP-1781 ROUTING + Demux Frame sync & Video Up/down/ cross ARC with AFD Mux + Grass Valley ALC Video match Compress/limit/ expand 5

6 -XC Densité Crossconversion Plus Transcoding The addition of Plus to the means that Grass Valley s ing module will provide the same high-quality compression they always have, but at a data rate as much as 50 percent lower than currently required, enabling 5.1 multichannel at rates as low as 192 kb/s. When combining decoding and Plus encoding, broadcasters can can deliver an efficient multichannel surround sound across multiple platforms and content types. Dolby Transcoding IRD + (384 kb) Router Frame sync and Up/down/cross conversion Plus Encoder video + Plus (192 kb) Dolby Metadata GVB D-EN-PH Join the Conversation at GrassValleyLive on Facebook, Twitter, YouTube and Grass Valley - A Belden Brand on LinkedIn. Belden, Belden Sending All The Right Signals and the Belden logo are trademarks or registered trademarks of Belden Inc. or its affiliated companies in the United States and other jurisdictions. Grass Valley, Densité and icontrol are trademarks or registered trademarks of Grass Valley. Belden Inc., Grass Valley and other parties may also have trademark rights in other terms used herein. Copyright Grass Valley Canada. All rights reserved. Specifications subject to change without notice. 6