Digital video at CES
Article Abstract:
Sony Corp showed several new digital products at the winter Consumer Electronics Show (CES) in Las Vegas, including the Digital Video Disc (DVD), which uses MPEG 2, and the Digital Video Cassette. Sony's first MPEG product will be its version of the Digital Satellite System, an 18-inch dish antenna and set-top decoder that receives signals from Hughes' DirecTV satellites. The system uses what is called MPEG 1.5 and will use MPEG 2 when the second DirecTV satellite is launched. The DVD standard proposed by Sony and Philips stores 3.7GB of MPEG 2 data on one side of a standard CD and can play back full-length features at 'D1' digital video quality; the technology uses a shorter-wavelength laser and tighter pitch between tracks, as well as smaller pits to fit 3.7GB on a 12cm disc. Alternative formats have been proposed by Toshiba/Time Warner, IBM, and other companies; lack of a standardized format may cause CDs to lose out to fiber-optic cable networks and direct broadcast satellites.
Publication Name: Newmedia
Subject: Computers and office automation industries
ISSN: 1060-7188
Year: 1995
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MPEG Encoding: The Next Generation
Article Abstract:
A new line of MPEG video processing equipment is being introduced to the market with more advanced bitstream and real-time features. The new Windows versions being introduced are FutureTel Inc's $11,995 PrimeView II, Optibase Inc's $14,495 MPEG Lab Suite 3.0 and Sony Corp's $34,000 RTE-3000. Optibase's MPEG Lab Suite 3.0 offers an analog input device, onboard filtering and MPEG 1 editing and encoding software. FutureTel's PrimeView II comes with standard filtering features plus software enhancements that function well with other encoders, an AV/sync and new controls which allow for brightness and contrast adjustment. Sony's RTE-3000 offers BNC video and XLR audio connections, an ISA Windows interface encoder card and a bit rate film compression capability. Macintosh versions have also been introduced and include OptImage's Compressionist 50 and 100.
Publication Name: Newmedia
Subject: Computers and office automation industries
ISSN: 1060-7188
Year: 1995
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Camcorders go digital
Article Abstract:
A buyer's guide compares eight digital video cameras ranging in price from $2,999 to $16,900. Digital video (DV) camcorders are vastly superior to S-video and Hi8 camcorders in several aspects. DV specifications include a 54dB signal-to-noise ratio, 500 lines of resolution and PCM digital audio and component recording. DV camcorders use smaller cassettes, can record 270 minutes of video and produce a 3 Mbps data stream. Users planning to purchase a DV camcorder should consider several factors, including image quality, lenses and focal lengths, electronic image stabilization, and photo/still modes. Other features to examine are editing interfaces, audio capabilities and video outputs and inputs. Many DV camcorders on the market offer extra features, such as data playback, flying erase heads and digital zoom.
Publication Name: Newmedia
Subject: Computers and office automation industries
ISSN: 1060-7188
Year: 1996
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