Philips demonstrates high quality MPEG2 audio with DVD.SAN JOSE, Calif.--(BUSINESS WIRE)--March 6, 1996--Philips Electronics demonstrates for the first time at intermediaWORLD the very high-quality superior sound quality of MPEG (Moving Pictures Experts Group) An ISO/ITU standard for compressing digital video. Pronounced "em-peg," it is the universal standard for digital terrestrial, cable and satellite TV, DVDs and digital video recorders (DVRs). 2 5.1 and 7.1 channel surround sound audio in combination with its DVD DVD: see digital versatile disc. DVD in full digital video disc or digital versatile disc Type of optical disc. The DVD represents the second generation of compact-disc (CD) technology. prototype player. The nine companies which jointly announced the basic agreement on DVD specifications last December have agreed to use MPEG2 audio with PAL video (50 Hz countries). For NTSC (National TV Standards Committee) The committee that developed the television standards for the U.S, which are also used in Canada, Japan, South Korea and several Central and South American countries. Both the committee and the standard are called "NTSC. video (60 Hz countries) MPEG2 audio is optional. The companies based their decision on various grounds. One of the main reasons is the backwards compatibility with existing systems. In other words Adv. 1. in other words - otherwise stated; "in other words, we are broke" put differently , systems with MPEG2 audio can play MPEG1 audio as well. For video, the same holds true. MPEG2 video systems do play existing MPEG1 videos. The present computer systems are already supporting MPEG1 audio and video and MPEG encoded files are available from a growing number of platforms, including CD-ROM CD-ROM: see compact disc. CD-ROM in full compact disc read-only memory Type of computer storage medium that is read optically (e.g., by a laser). and Internet. An increasing number of broadcast and distribution applications of digital video and audio is based on MPEG technology: DSS (1) (Digital Signature Standard) A National Security Administration standard for authenticating an electronic message. See RSA and digital signature. (2) (Digital Satellite S (Digital Satellite System), DAB (Digital Audio Broadcast), DVB (Digital Video Broadcast), ADR ADR - Astra Digital Radio (Astra Digital Radio (audio) Astra Digital Radio - Digital Radio over satellite, compatible with analog television transmissions. Alternatively the normal TV subcarriers can be modulated by a MPEG-1 Layer-2 48 kHz 192 kbps signal. ) and satellite feeds to cable networks. And MPEG is increasingly used with ISDN ISDN in full Integrated Services Digital Network Digital telecommunications network that operates over standard copper telephone wires or other media. to provide high quality audio and video. The number of disc-based products including MPEG1, Video CDs and CD-ROMs with MPEG video, is expanding fast. Philips is of the opinion that consumers should be able to play these existing discs on future systems, thus protecting consumers' investments in their software titles. The expected delivery schedule is: an MPEG2 Fixed Bit Rate Audio Encoder (stereo) is available now. The first prototypes of MPEG2 variable bit rate encoders for video and audio are also available today, with commercial availability in the third quarter of this year. Technical Characteristics of MPEG2 MPEG2 variable bit rate encoding is a very efficient way of encoding compressed multichannel audio. Thanks to the advanced algorithms and the use of variable bit rate, it is possible to get high audio quality at very low bit rate consumption. For movie material with its large variety of audio complexity, silence, speech, music, gunfights and thundering trains, MPEG is especially effective. MPEG2 multichannel (5.1 or 7.1) audio can accommodate all 8 sound channels of today's feature films. It is an open standard which offers content providers freedom to choose between encoding ways: 2 channel, 5.1 channel or 7.1 channel, with different bit rates, fixed and variable. And, the know-how on encoders is widely available. CONTACT: Philips Media, Los Angeles Marty Gordon, 310/444-6501 310/445-5777 (fax) or Philips Key Modules, San Jose Lisa Young, 408/467-3616 408/453-0680 (fax) 415/978-3665 (at intermediaWORLD) or Philips Electronics, Eindhoven Marijke van Hooren, 011 31 40 27 34 866 011 31 40 27 33 512 (fax) |
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