Thursday, 15 December 2011

Future of HDV

JVC appear its most recent HDV camcorder — the GY-HD250 — in 2006, and appear the "B" modification of the earlier GY-HD200 in 2008. The most recent HDV camcorder fabricated by Canon — the HV40 — was appear in 2009, but it traces aback to the HV20 developed in 2007. The most recent Sony customer HDV archetypal is the HDR-HC9, originally appear in 2008 and discontinued on the North American bazaar in 2011. 2008 was additionally the year back Sony presented the most recent "advanced amateur" and able HDV camcorders, namely the HDR-FX1000 and the HVR-Z5.

All the three above manufacturers of HDV accessories — JVC, Canon and Sony — accept heavily invested in development of MPEG-2 video compression arrangement and abide to await on it in their able tapeless camcorder lineups: XDCAM HD (Sony), XDCAM EX (Sony and JVC), XDCAM HD422 (Sony), XF Codec (Canon). At the aforementioned time Sony and Canon accept abutting Panasonic in business of AVCHD recording format, which is claimed to bear beheld affection commensurable to HDV at bisected the datarate.6162 Customer aerial analogue camcorders appear by these companies back 2009 apply AVCHD format.

Industry analysts do not apprehend fresh HDV products, but accept that manufacturers will abide to abutment HDV for their absolute users, while at the aforementioned time transitioning to file-based workflow.63

edit Specifications

Format name HDV 720p HDV 1080i

Media "Small" or "Large" DV cassette

Video

Frame aspect arrangement 16x9

Frame admeasurement in pixels 1280 × 720 1440 × 1080

Pixel aspect arrangement 1.0 1.33

Scanning blazon progressive interlaced progressive (optional)

Video arresting 720p/60, 720p/30, 720p/24, 720p/50, 720p/25, 1080i/30 (29.97), 1080i/25 1080p/30 (29.97), 1080p/24 (23.98), 1080p/25

Video Compression MPEG2 Video (profile & level: MP@H-14/HL) MPEG2 Video (profile & level: MP@H-14)

Sampling abundance for luminance 74.25 MHz 55.6875 MHz

Chroma sampling architecture 4:2:0

Quantization 8 $.25 (both luminance and chrominance)

Compressed video bitstream amount ~18.3 Mbit/s ~25 Mbit/s

Audio

Compression MPEG-1 Audio Layer II, PCM MPEG-1 Audio Layer II

Sampling abundance 48 kHz

Quantization 16 bits

Audio modes and abstracts amount MPEG-1 Part 3 AL 2 Stereo (2-channel) at 384 kbit/s (192 kbit/s per channel);

optional MPEG-2 Part 3 AL 2 4-channel at 96 kbit/s per channel.

System

Stream blazon MPEG carriage beck (MPEG-TS)

Stream interface IEEE 1394 in alpha approach (also accepted as FireWire 400 or i. LINK)

File addendum .m2t (generally)

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