Dvd/Cd Receiver Owner's Manual

Total Page:16

File Type:pdf, Size:1020Kb

Dvd/Cd Receiver Owner's Manual LH-T6745X JA3RMLS_ENG DVD/CD RECEIVER OWNER'S MANUAL MODEL: LH-T6745 (Main Unit: LH-T6745X, Speakers: LHS-T6745T, LHS-T6745C, LHS-T6745W) Before connecting up, operating or repairing this product, please read this instruction booklet carefully and completely. The working life of this product is 7 years since the date of purchase. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. This lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation mark within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the instructions accompanying the product. WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK HAZARD, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE. WARNING: Do not install this equipment in a confined space such as a book case or similar unit. ON CAUTION: COPYRIGHTS: It is forbidden by law to copy, broadcast, show, broadcast This DVD/CD receiver employs a Laser System. via cable, play in public, or rent copyrighted material without To ensure proper use of this product, please read this permission. owner's manual carefully and retain it for future reference. This product features the copy protection function developed Should the unit require maintenance, contact an authorized by Macrovision. Copy protection signals are recorded on service location (see service procedure). some discs. When recording and playing the pictures of these discs on a noise will Performing controls, adjustments, or carrying out procedures VCR, picture appear. This other than those specified herein may result in hazardous product incorporates copyright protection technology that is method claims of certain U.S. radiation exposure. protected by patents and other intellectual property rights owned by Macrovision To prevent direct exposure to laser beam, do not try to open Corporation and other rights owners. Use of this copyright the enclosure. Visible laser radiation when open. DO NOT must be authorized Macrovision STARE INTO BEAM. protection technology by Corporation, and is intended for home and other limited CAUTION: The apparatus should not be exposed to water viewing uses only unless otherwise authorized by (dripping or splashing) and no objects filled with liquids, such Macrovision Corporation. Reverse engineering or as vases, should be placed on the apparatus. disassembly is prohibited. SERIAL NUMBER: The serial number is located on the back of this unit. This number is unique to this unit and not available to others. You should record requested information here and retain this guide as a permanent record of your purchase. Model No. ___________________________________ Serial No. ___________________________________ 2 Contents Introduction.....................4-9 SLOWSCAN...........................22 SymbolusedinthisManual...............4 REPEATA-B...........................22 AbouttheSymbolDisplay.............4 REPEAT...............................22 NotesonDiscs.........................4 3DSURROUND........................22 HANDLINGDISCS.......................4 TIMESEARCH..........................22 STORINGDISCS.........................4 ZOOM..............................23 CLEANINGDISCS........................4 MARKERSEARCH....................23 TypesofPlayableDiscs..................5 PAUSE................................23 Regionalcode.........................5 SpecialDVDFeatures..................23 Disc-relatedterms......................6 CHECKING THE CONTENTS OF DVD FrontPanel............................7 DISCS:MENUS.........................23 DisplayWindow.........................7 TITLEMENU..........................23 RemoteControl.........................8 DISCMENU...........................23 CAMERAANGLE......................23 REMOTE CONTROL OPERATION RANGE . .8 CHANGINGTHEAUDIOLANGUAGE. .23 REMOTE CONTROL BATTERY INSTALLATION . .8 RearPanel............................9 SUBTITLES...........................23 DVDAudioDiscs.......................24 MOVINGTOANOTHERGROUP. .24 InstallationandSetup. .10-20 TVConnections.......................10 VIEWINGANOTHERPAGE................24 an Audio CD or MP3/WMA Disc . .25 Audio Connection to Optional Equipment . .11 Playing AerialConnections.....................12 Audio CD and MP3 / WMA Disc Features . .26 SpeakerSystemConnection..............13 PAUSE................................26 SpeakerPositioning....................14 MOVINGTOANOTHERTRACK.............26 Mini Glossary for Audio Stream & REPEATTRACK/ALL/OFF.................26 SurroundMode........................15 SEARCH.............................26 SoundMode..........................15 REPEATA-B...........................26 On-ScreenDisplay.....................16 3DSURROUND.........................26 PLAYBACK STATUS/RESTRICTIONS . .16 ProgrammedPlayback..................27 InitialSettings......................17-20 REPEATPROGRAMMEDTRACKS . .27 GENERALOPERATION...................17 ERASING A TRACK FROM PROGRAM LIST . .27 LANGUAGE............................17 ERASING THE COMPLETE PROGRAM LIST . .27 ?MenuLanguage......................17 ViewingaJPEGDisc...................28 ?DiscAudio/Subtitle/Menu.............17 SLIDESHOW..........................28 DISPLAY...............................17 STILLPICTURE.........................28 MOVINGTOANOTHERFILE...............28 ?TVAspect..........................17 ZOOM.................................28 ?DisplayMode........................17 TOROTATEPICTURE....................28 ?ProgressiveScan......................17 TO LISTEN TO MP3/WMA MUSIC AUDIO................................18 WATCHINGPICTURE.....................28 ?5.1SpeakerSetup.....................18 . .29 ?DynamicRangeControl(DRC) . .18 PlayingaDVDVRformatDisc ?Vocal...............................18 MaintenanceandService................29 HANDLINGTHEUNIT....................29 LOCK(ParentalControl)..................19 ?Rating.............................19 PlayingaDivXMovieDisc...............30 AdditionalFeatures.....................31 ?Password(SecurityCode)...............19 LASTSCENEMEMORY...................31 ?CountryCode........................19 OTHERS..............................20 VIDEOMODESETTING...................31 ?PBC...............................20 SYSTEMSELECT.......................31 ?AutoPlay...........................20 5.1SpeakerSetup.....................32 SPEAKERSETUP.......................32 ?B.L.E.(BlackLevelExpansion). .20 . .33 ?DivX(R)VOD.........................20 PresettingtheRadioStations ListeningtotheRadio...................33 SleepTimerSetting.....................34 Operation.....................21-34 Dimmer..............................34 PlayingaDVDorVideoCD . .21-23 Mute................................34 PLAYBACKSETUP.....................21 UsingHeadphoneJack..................34 GeneralFeatures......................21 SelectingInputSource...................34 MOVING TO ANOTHER TITLE/GROUP . .21 MOVING TO ANOTHER CHAPTER/TRACK . .21 Reference....................35-38 SEARCH...............................21 CHANGINGTHEAUDIOCHANNEL . .21 LanguageCodes.......................35 STILL PICTURE AND FRAME-BY-FRAME CountryCodes........................35 PLAYBACK.............................22 Troubleshooting.....................36-37 Specifications.........................38 3 Introduction About the Symbol Display To ensure proper use of this product, please read this owner's manual and retain for future " " carefully may appear on your TV display during operation reference. and indicates that the function explained in this owner's manual is not available on that specific DVD This manual provides information on the operation video disc. and maintenance of your DVD/CD receiver. Should the unit require service, contact an authorized service location. Notes on Discs Used in this Manual Symbol HANDLING DISCS Do not touch the side of the disc. Hold the The lightning flash symbol alerts you to the playback disc the so that do not on presence of dangerous voltage within the by edges fingerprints get the surface. Never stick or on the disc. product enclosure that may constitute a risk of paper tape electric shock. The exclamation point alerts you to the presence of important operating and maintenance / servicing instructions. Indicates hazards likely to cause harm to the unit itself or other material damage. STORING DISCS After playing, store the disc in its case. Do not expose Note: the disc to direct sunlight or sources of heat and never Indicates special notes and operating features. leave it in a parked car exposed to direct sunlight. CLEANING DISCS Tip: Fingerprints and dust on the disc can cause poor Indicates and hints for the task easier. tips making picture quality and sound distortion. Before playing, clean the disc with a clean cloth. Wipe the disc from A section whose title has one of the following symbols the center out. is applicable only to the disc represented by the symbol. DVD-V DVD and finalized DVD±R/RW DVD-A DVD Audio discs VCD Video CDs CD Audio CDs MP3 MP3 Discs Do not use strong solvents such as alcohol, benzine, thinner, commercially available cleaners, or anti-static WMA WMA Discs spray intended for older vinyl records. JPEG JPEG Discs DivX DivX Discs
Recommended publications
  • Virtualization of Audio-Visual Services
    Software Defined Media: Virtualization of Audio-Visual Services Manabu Tsukada∗, Keiko, Ogaway, Masahiro Ikedaz, Takuro Sonez, Kenta Niwax, Shoichiro Saitox, Takashi Kasuya{, Hideki Sunaharay, and Hiroshi Esaki∗ ∗ Graduate School of Information Science and Technology, The University of Tokyo Email: [email protected], [email protected] yGraduate School of Media Design, Keio University / Email: [email protected], [email protected] zYamaha Corporation / Email: fmasahiro.ikeda, [email protected] xNTT Media Intelligence Laboratories / Email: fniwa.kenta, [email protected] {Takenaka Corporation / Email: [email protected] Abstract—Internet-native audio-visual services are witnessing We believe that innovative applications will emerge from rapid development. Among these services, object-based audio- the fusion of object-based audio and video systems, including visual services are gaining importance. In 2014, we established new interactive education systems and public viewing systems. the Software Defined Media (SDM) consortium to target new research areas and markets involving object-based digital media In 2014, we established the Software Defined Media (SDM) 1 and Internet-by-design audio-visual environments. In this paper, consortium to target new research areas and markets involving we introduce the SDM architecture that virtualizes networked object-based digital media and Internet-by-design audio-visual audio-visual services along with the development of smart build- environments. We design SDM along with the development ings and smart cities using Internet of Things (IoT) devices of smart buildings and smart cities using Internet of Things and smart building facilities. Moreover, we design the SDM architecture as a layered architecture to promote the development (IoT) devices and smart building facilities.
    [Show full text]
  • DVD850 DVD Video Player with Jog/Shuttle Remote
    DVD Video Player DVD850 DVD Video Player with Jog/Shuttle Remote • DVD-Video,Video CD, and Audio CD Compatible • Advanced DVD-Video technology, including 10-bit video DAC and 24-bit audio DAC • Dual-lens optical pickup for optimum signal readout from both CD and DVD • Built-in Dolby Digital™ audio decoder with delay and balance controls • Digital output for Dolby Digital™ (AC-3), DTS, and PCM • 6-channel analog output for Dolby Digital™, Dolby Pro Logic™, and stereo • Choice of up to 8 audio languages • Choice of up to 32 subtitle languages • 3-dimensional virtual surround sound • Multiangle • Digital zoom (play & still) DVD850RC Remote Control • Graphic bit rate display • Remote Locator™ DVD Video Player Feature Highlights: DVD850 Component Video Out In addition to supporting traditional TV formats, Philips Magnavox DVD Technical Specifications: supports the latest high resolution TVs. Component video output offers superb color purity, crisp color detail, and reduced color noise– Playback System surpassing even that of S-Video! Today’s DVD is already prepared to DVD Video work with tomorrow’s technology. Video CD CD Gold-Plated Digital Coaxial Cables DVD-R These gold-plated cables provide the clearest connection possible with TV Standard high data capacity delivering maximum transmission efficiency. Number of Lines : 525 Playback : NTSC/60Hz Digital Optical Video Format For optimum flexibility, DVD offers digital optical connection which deliv- Signal : Digital er better, more dynamic sound reproduction. Signal Handling : Components Digital Compression : MPEG2 for DVD Analog 6-Channel Built-in AC3 Decoder : MPEG1 for VCD Dolby® Digital Sound (AC3) gives you dynamic theater-quality sound DVD while sharply filtering coding noise and reducing data consumption.
    [Show full text]
  • An Introduction to MPEG Transport Streams
    An introduction to MPEG-TS all you should know before using TSDuck Version 8 Topics 2 • MPEG transport streams • packets, sections, tables, PES, demux • DVB SimulCrypt • architecture, synchronization, ECM, EMM, scrambling • Standards • MPEG, DVB, others Transport streams packets and packetization Standard key terms 4 • Service / Program • DVB term : service • MPEG term : program • TV channel (video and / or audio) • data service (software download, application data) • Transport stream • aka. « TS », « multiplex », « transponder » • continuous bitstream • modulated and transmitted using one given frequency • aggregate several services • Signalization • set of data structures in a transport stream • describes the structure of transport streams and services MPEG-2 transport stream 5 • Structure of MPEG-2 TS defined in ISO/IEC 13818-1 • One operator uses several TS • TS = synchronous stream of 188-byte TS packets • 4-byte header • optional « adaptation field », a kind of extended header • payload, up to 184 bytes • Multiplex of up to 8192 independent elementary streams (ES) • each ES is identified by a Packet Identifier (PID) • each TS packet belongs to a PID, 13-bit PID in packet header • smooth muxing is complex, demuxing is trivial • Two types of ES content • PES, Packetized Elementary Stream : audio, video, subtitles, teletext • sections : data structures Multiplex of elementary streams 6 • A transport stream is a multiplex of elementary streams • elementary stream = sequence of TS packets with same PID value in header • one set of elementary
    [Show full text]
  • Implementing Object-Based Audio in Radio Broadcasting
    Object-based Audio in Radio Broadcast Implementing Object-based audio in radio broadcasting Diplomarbeit Ausgeführt zum Zweck der Erlangung des akademischen Grades Dipl.-Ing. für technisch-wissenschaftliche Berufe am Masterstudiengang Digitale Medientechnologien and der Fachhochschule St. Pölten, Masterkalsse Audio Design von: Baran Vlad DM161567 Betreuer/in und Erstbegutachter/in: FH-Prof. Dipl.-Ing Franz Zotlöterer Zweitbegutacher/in:FH Lektor. Dipl.-Ing Stefan Lainer [Wien, 09.09.2019] I Ehrenwörtliche Erklärung Ich versichere, dass - ich diese Arbeit selbständig verfasst, andere als die angegebenen Quellen und Hilfsmittel nicht benutzt und mich auch sonst keiner unerlaubten Hilfe bedient habe. - ich dieses Thema bisher weder im Inland noch im Ausland einem Begutachter/einer Begutachterin zur Beurteilung oder in irgendeiner Form als Prüfungsarbeit vorgelegt habe. Diese Arbeit stimmt mit der vom Begutachter bzw. der Begutachterin beurteilten Arbeit überein. .................................................. ................................................ Ort, Datum Unterschrift II Kurzfassung Die Wissenschaft der objektbasierten Tonherstellung befasst sich mit einer neuen Art der Übermittlung von räumlichen Informationen, die sich von kanalbasierten Systemen wegbewegen, hin zu einem Ansatz, der Ton unabhängig von dem Gerät verarbeitet, auf dem es gerendert wird. Diese objektbasierten Systeme behandeln Tonelemente als Objekte, die mit Metadaten verknüpft sind, welche ihr Verhalten beschreiben. Bisher wurde diese Forschungen vorwiegend
    [Show full text]
  • BDP9100/05 Philips Blu-Ray Disc Player
    Philips Blu-ray Disc player BDP9100 True cinema experience in 21:9 ultra-widescreen The perfect companion for the Cinema 21:9 TV. Unlike normal Blu-ray players, the BDP9100 is the only Blu-ray player allowing you to shift subtitles in the 21:9 screen aspect ratio, to retain the subtitles without the black bars. See more • 21:9 movie aspect ratio, no black bars bottom and top • Blu-ray Disc playback for sharp images in full HD 1080p • 1080p at 24 fps for cinema-like images • DVD video upscaling to 1080p via HDMI for near-HD images • DivX® Ultra for enhanced playback of DivX® media files • x.v.Colour brings more natural colours to HD camcorder videos Hear more • Dolby TrueHD and DTS-HD MA for HD 7.1 surround sound Engage more • BD-Live (Profile 2.0) to enjoy online Blu-ray bonus content • AVC HD to enjoy high definition camcorder recordings on DVD • Hi-Speed USB 2.0 Link plays video/music from USB flash drives • Enjoy all your movies and music from CDs and DVDs • EasyLink controls all EasyLink products with a single remote Blu-ray Disc player BDP9100/05 Highlights 21:9 movie aspect ratio BD-Live (Profile 2.0) resolution - ensuring more details and more true-to-life pictures. Progressive Scan (represented by "p" in "1080p') eliminates the line structure prevalent on TV screens, again ensuring relentlessly sharp images. To top it off, HDMI makes a direct digital connection that can carry uncompressed digital HD video as well as digital multi-channel audio, without conversions to analogue - delivering perfect picture and sound quality, completely free Be blown away by movies the way they are BD-Live opens up your world of high definition from noise.
    [Show full text]
  • Comprehensive Video/Audio Analysis to Reduce Debug Cycle
    VEGA H264 Content Readiness - From Creation to Distribution Comprehensive Video/Audio Analysis to Reduce Debug Cycle New Addressing the needs of media professionals to debug and optimize digital video products, Interra’s Vega H264 provides detailed analysis of video and audio streams. • Multicore support for video Reducing development time and costs, and increasing productivity, Vega H264 enables media professionals to quickly bring to market high quality, standard-compliant digital video products. stream analysis Vega H264 is an ideal tool for media professionals who need to: • Hierarchial view of SVC Layers • Verify a stream’s compliance with the defined standard • Audio Video synchronization • Debug an encoded stream, or optimize a stream's buffer requirements check • Evaluate and compare the performance and quality of video compression/decompression • Additional standard support: tools - H.264 SVC, AVS, ISDB-T, Teletext, • Optimize and refine video compression CODEC Subtitles, Close Captions, PCAP, HDV, • Check interoperability issues MJPEG 2000, and more... Standards Supported Video H.264, H.264 SVC, H.263, H.263+, MPEG-4, MPEG-2, MPEG-1, AVS Key Product Benefits Audio AAC, Dolby AC-3, Dolby Digital Plus, AMR, MP3, PCM, LPCM, • Extensible architecture to support MPEG-1/MPEG-2 Audio other audio, video, and system System Streams MPEG-2 Transport, MPEG-2 Program/DVD VOB, QuickTime, formats MPEG-1 Systems, MP4, 3GPP/3GPP2, AVC, AVI, HDV • Powerful debug capabilities to Broadcast Standards ATSC, DVB, DVB-T/DVB-H, TR 101 290 Priority 1,2
    [Show full text]
  • HTS3450/77 Philips DVD Home Theater System with Video
    Philips DVD home theater system with Video Upscaling up to 1080i DivX Ultra HTS3450 Turn up your experience with HDMI and video upscaling This stylish High Definition digital home entertainment system plays practically any disc in high quality Dolby and DTS multi-channel surround sound. So just relax and fully immerse yourself in movies and music at home. Great audio and video performance • HDMI digital output for easy connection with only one cable • Video Upscaling for improved resolution of up to 1080i • High definition JPEG playback for images in true resolution • DTS, Dolby Digital and Pro Logic II surround sound • Progressive Scan component video for optimized image quality Play it all • Movies: DVD, DVD+R/RW, DVD-R/RW, (S)VCD, DivX • Music: CD, MP3-CD, CD-R/RW & Windows Media™ Audio • DivX Ultra Certified for enhanced playback of DivX videos • Picture CD (JPEG) with music (MP3) playback Quick and easy set-up • Easy-fit™ connectors with color-coding for a simple set-up DVD home theater system with Video Upscaling up to 1080i HTS3450/77 DivX Ultra Highlights HDMI for simple AV connection High definition JPEG playback Progressive Scan HDMI stands for High Definition Multimedia High definition JPEG playback lets you view Progressive Scan doubles the vertical Interface. It is a direct digital connection that your pictures on your television in resolutions resolution of the image resulting in a noticeably can carry digital HD video as well as digital as high as two megapixels. Now you can view sharper picture. Instead of sending a field multichannel audio. By eliminating the your digital pictures in absolute clarity, without comprising the odd lines to the screen first, conversion to analog signals it delivers perfect loss of quality or detail - and share them with followed by the field with the even lines, both picture and sound quality, completely free friends and family in the comfort of your living fields are written at one time.
    [Show full text]
  • Lossless Compression of Audio Data
    CHAPTER 12 Lossless Compression of Audio Data ROBERT C. MAHER OVERVIEW Lossless data compression of digital audio signals is useful when it is necessary to minimize the storage space or transmission bandwidth of audio data while still maintaining archival quality. Available techniques for lossless audio compression, or lossless audio packing, generally employ an adaptive waveform predictor with a variable-rate entropy coding of the residual, such as Huffman or Golomb-Rice coding. The amount of data compression can vary considerably from one audio waveform to another, but ratios of less than 3 are typical. Several freeware, shareware, and proprietary commercial lossless audio packing programs are available. 12.1 INTRODUCTION The Internet is increasingly being used as a means to deliver audio content to end-users for en­ tertainment, education, and commerce. It is clearly advantageous to minimize the time required to download an audio data file and the storage capacity required to hold it. Moreover, the expec­ tations of end-users with regard to signal quality, number of audio channels, meta-data such as song lyrics, and similar additional features provide incentives to compress the audio data. 12.1.1 Background In the past decade there have been significant breakthroughs in audio data compression using lossy perceptual coding [1]. These techniques lower the bit rate required to represent the signal by establishing perceptual error criteria, meaning that a model of human hearing perception is Copyright 2003. Elsevier Science (USA). 255 AU rights reserved. 256 PART III / APPLICATIONS used to guide the elimination of excess bits that can be either reconstructed (redundancy in the signal) orignored (inaudible components in the signal).
    [Show full text]
  • 4. MPEG Layer-3 Audio Encoding
    MPEG Layer-3 An introduction to MPEG Layer-3 K. Brandenburg and H. Popp Fraunhofer Institut für Integrierte Schaltungen (IIS) MPEG Layer-3, otherwise known as MP3, has generated a phenomenal interest among Internet users, or at least among those who want to download highly-compressed digital audio files at near-CD quality. This article provides an introduction to the work of the MPEG group which was, and still is, responsible for bringing this open (i.e. non-proprietary) compression standard to the forefront of Internet audio downloads. 1. Introduction The audio coding scheme MPEG Layer-3 will soon celebrate its 10th birthday, having been standardized in 1991. In its first years, the scheme was mainly used within DSP- based codecs for studio applications, allowing professionals to use ISDN phone lines as cost-effective music links with high sound quality. In 1995, MPEG Layer-3 was selected as the audio format for the digital satellite broadcasting system developed by World- Space. This was its first step into the mass market. Its second step soon followed, due to the use of the Internet for the electronic distribution of music. Here, the proliferation of audio material – coded with MPEG Layer-3 (aka MP3) – has shown an exponential growth since 1995. By early 1999, “.mp3” had become the most popular search term on the Web (according to http://www.searchterms.com). In 1998, the “MPMAN” (by Saehan Information Systems, South Korea) was the first portable MP3 player, pioneering the road for numerous other manufacturers of consumer electronics. “MP3” has been featured in many articles, mostly on the business pages of newspapers and periodicals, due to its enormous impact on the recording industry.
    [Show full text]
  • The H.264 Advanced Video Coding (AVC) Standard
    Whitepaper: The H.264 Advanced Video Coding (AVC) Standard What It Means to Web Camera Performance Introduction A new generation of webcams is hitting the market that makes video conferencing a more lifelike experience for users, thanks to adoption of the breakthrough H.264 standard. This white paper explains some of the key benefits of H.264 encoding and why cameras with this technology should be on the shopping list of every business. The Need for Compression Today, Internet connection rates average in the range of a few megabits per second. While VGA video requires 147 megabits per second (Mbps) of data, full high definition (HD) 1080p video requires almost one gigabit per second of data, as illustrated in Table 1. Table 1. Display Resolution Format Comparison Format Horizontal Pixels Vertical Lines Pixels Megabits per second (Mbps) QVGA 320 240 76,800 37 VGA 640 480 307,200 147 720p 1280 720 921,600 442 1080p 1920 1080 2,073,600 995 Video Compression Techniques Digital video streams, especially at high definition (HD) resolution, represent huge amounts of data. In order to achieve real-time HD resolution over typical Internet connection bandwidths, video compression is required. The amount of compression required to transmit 1080p video over a three megabits per second link is 332:1! Video compression techniques use mathematical algorithms to reduce the amount of data needed to transmit or store video. Lossless Compression Lossless compression changes how data is stored without resulting in any loss of information. Zip files are losslessly compressed so that when they are unzipped, the original files are recovered.
    [Show full text]
  • Frequently Asked Questions Dolby Digital Plus
    Frequently Asked Questions Dolby® Digital Plus redefines the home theater surround experience for new formats like high-definition video discs. What is Dolby Digital Plus? Dolby® Digital Plus is Dolby’s new-generation multichannel audio technology developed to enhance the premium experience of high-definition media. Built on industry-standard Dolby Digital technology, Dolby Digital Plus as implemented in Blu-ray Disc™ features more channels, less compression, and higher data rates for a warmer, richer, more compelling audio experience than you get from standard-definition DVDs. What other applications are there for Dolby Digital Plus? The advanced spectral coding efficiencies of Dolby Digital Plus enable content producers to deliver high-resolution multichannel soundtracks at lower bit rates than with Dolby Digital. This makes it ideal for emerging bandwidth-critical applications including cable, IPTV, IP streaming, and satellite (DBS) and terrestrial broadcast. Dolby Digital Plus is also a preferred medium for delivering BonusView (Profile 1.1) and BD-Live™ (Profile 2.0) interactive audio content on Blu-ray Disc. Delivering higher quality and more channels at higher bit rates, plus greater efficiency at lower bit rates, Dolby Digital Plus has the flexibility to fulfill the needs of new content delivery formats for years to come. Is Dolby Digital Plus content backward-compatible? Because Dolby Digital Plus is built on core Dolby Digital technologies, content that is encoded with Dolby Digital Plus is fully compatible with the millions of existing home theaters and playback systems worldwide equipped for Dolby Digital playback. Dolby Digital Plus soundtracks are easily converted to a 640 kbps Dolby Digital signal without decoding and reencoding, for output via S/PDIF.
    [Show full text]
  • Lossy Audio Compression Identification
    2018 26th European Signal Processing Conference (EUSIPCO) Lossy Audio Compression Identification Bongjun Kim Zafar Rafii Northwestern University Gracenote Evanston, USA Emeryville, USA [email protected] zafar.rafi[email protected] Abstract—We propose a system which can estimate from an compression parameters from an audio signal, based on AAC, audio recording that has previously undergone lossy compression was presented in [3]. The first implementation of that work, the parameters used for the encoding, and therefore identify the based on MP3, was then proposed in [4]. The idea was to corresponding lossy coding format. The system analyzes the audio signal and searches for the compression parameters and framing search for the compression parameters and framing conditions conditions which match those used for the encoding. In particular, which match those used for the encoding, by measuring traces we propose a new metric for measuring traces of compression of compression in the audio signal, which typically correspond which is robust to variations in the audio content and a new to time-frequency coefficients quantized to zero. method for combining the estimates from multiple audio blocks The first work to investigate alterations, such as deletion, in- which can refine the results. We evaluated this system with audio excerpts from songs and movies, compressed into various coding sertion, or substitution, in audio signals which have undergone formats, using different bit rates, and captured digitally as well lossy compression, namely MP3, was presented in [5]. The as through analog transfer. Results showed that our system can idea was to measure traces of compression in the signal along identify the correct format in almost all cases, even at high bit time and detect discontinuities in the estimated framing.
    [Show full text]