Manuale d’uso / di manutenzione del prodotto VisualHub del fabbricante Apple
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V isualHub Users Guide By T yler Loch, Fearless Leader , T echspansion LLC Release 1.22, 2/26/07.
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T able of Contents Chapter 1: Crash Course 4 Chapter 2: iT unes 6 Chapter 3: PSP 8 Chapter 4: DV 11 Chapter 5: DVD 14 Chapter 6: A VI 17 Chapter 7: MP4 19 Chapter 8: WMV .
Chapt er 1: Cr ash Course "This readout tells you wher e you're going, this one tells you wher e you are, this one tells you where you wer e.
Introduction VisualHub was created to allow people to convert video to many popular formats with ease. Most people will fi gur e it out right away with no help. If you’re someone who scof fs at the notion that an “easy to use” program needs a 44 page Users Guide, then don’t r ead past this page.
Chapt er 2: iT u n e s "Y ou know , our next big step is we want it to make toast. I want to brown my bagels when I’m listening to my music. And we’re toying with r efrigeration, too.
What Is It? A specialized set of MPEG-4 settings that play on modern iPods, and on the Apple TV . What Plays It? Fifth-Generation (5G) iPods. aka "iPod with Video", released in late 2005, and Apple TV , released in February 2007. More Information The 5G iPod was announced in late 2005 with video playback capabilities.
Chapt er 3: PSP "This is the design that we came up with. There may be people that complain about its usability , but that's something which users and game software developers will have to adapt to.
What Is It? A specialized set of MPEG-4 settings that will play on the PSP . What Plays It? PSP , or PlayStation Portable, released in spring 2005. More Information The PlayStation Portable is Sony's grand entrance into the portable gaming market.
A VC Encoding A VC, also known as H.264, is a newer , mor e advanced video compression type. Videos compressed with A VC will look better than its default MPEG-4 counterpart and takes up less stick space. Of course, there's a catch. It takes much longer to compress to A VC than MPEG-4.
Chapt er 4: DV "...and it's indestructible! [WHAM] [WHAM] [WHAM] ...aww ...I broke some of the shielding..." - Apple Spokesperson on FireWire at MUG meeting, 1997 11.
What Is It? A nearly-lossless format geared towar ds non-linear video editing. What Plays It? MiniDV camcorders, iMovie, Final Cut Pr o. More Information DV video became the standard for home and pr osumer video editing with the release of iMovie in 1999.
After Conversion If you want to add your completed videos to an iMovie project, 1. Make sure iMovie is closed. 2. Locate your iMovie project fi le. Contr ol-Click on it and choose "Show Package Contents. 3. A new window will open showing you the innards of your iMovie project.
Chapt er 5: DV D "I go on Kazaa every week [...] a lot of it was pornography , some of it was music, but a lot of it was fi lms." - Jack V alenti, May 2003 "I say to you that the VCR is to the American fi lm producer and the American public as the Boston Strangler is to the woman home alone.
What Is It? A specialized set of MPEG-2 settings and authoring utilities that are gear ed towards cr eating discs that will play back on standalone DVD video players as well as computers.
one DVD. The fi nal result of this conversion is a disc image fi le named “VisualHubDVD.iso” that can be tested befor e being burned at your leisure on any Mac with Disk Utility , or with any PC burning software. Burn When Done Does what it says.
Chapt er 6: AV I “Please spell DivX ;-) correctly ! Capital ‘D’ lower -case ‘iv’ capital ‘X’ and do not forget the eye-blinking smiley ‘;-)’ !” -Gej 17.
What Is It? A legacy Windows video container resurrected by the DivX pr oject. VisualHub creates DivX-compatible MPEG-4 A VI fi les. What Plays It? Windows, Mac and Linux with appropriate codecs, VLC, DivX-certi fi ed DVD and portable players.
Chapt er 7 : MP4 "In this world of 'my codec is better than yours' -- this codec is better ." - Frank Casanova, 2004 19.
What Is It? A modern container format, used with MPEG-4 and H.264 video. What Plays It? QuickTime, VLC, some portable players. More Information The MP4 container gets its heritage from the QuickTime .mov container . Its native video formats are MPEG-4 and H.
Chapt er 8: WMV "I've got my kids brainwashed: Y ou don't use Google, and you don't use an iPod." - Steve Ballmer , April 2006 21.
What Is It? A Microsoft-cr eated video container format. What Plays It? Windows Media Player on W indows, Flip4Mac and Popwire WMV decoders on Mac, VLC, Xbox360, some portable devices. More Information The WMV format is Microsoft's video format for both local use and internet streaming.
Chapt er 9: MPEG ” The basic scheme is to predict motion fr om frame to frame in the temporal direction, and then to use DCT's (discrete cosine transforms) to organize the r edundancy in the spatial directions. The DCT's ar e done on 8x8 blocks, and the motion prediction is done in the luminance (Y) channel on 16x16 blocks .
What Is It? A legacy format supported by virtually all computers. What Plays It? Some standalone devices, some DVD players, every computer after 1996. More Information MPEG video was created in the early 1990s as a worldwide standar d for digital video.
MPEG Pro fi les There ar e hundreds of devices that use MPEG video to some extent, all with their own speci fi c settings needs. VisualHub has presets for some of the mor e popular device formats. VCD Creates an MPEG fi le conforming to the strict VCD 1.
Chapt er 1 0: Flash "People are all the time asking me, "Mike, how do you do those stupid voices for your dumb animal characters?", and I say , "I'm Mike.
What Is It? A Macromedia and Sor enson-created video format commonly found in Macromedia Flash .swf fi les. Used by Google Video and Y ouT ube What Plays It? Macromedia/Adobe Flash web br owser plugin for all formats, VLC. More Information Flash 6 included a video codec to go along with MP3 audio to allow simple video to be embedded in .
Chapt er 1 1: Adv anced "We knock them into little pockets with sticks. ...and we got higher numbers too!" - The T ick, on The In fi nity Ball 28.
W ar ning : Certain settings used in the Advanced drawer may create video files incompatible with some devices. 29 Option Explanation Crop (Left,Right,T op,Bottom) Will remove n number of pixels from a side, depending on which fi eld a number is enter ed.
Chapt er 1 2: Xgr id “The Xgrid Console has an intuitive Aqua interface that makes it easy to execute UNIX commands.” - Xgrid T echnology Preview PR.
What is it and what does it do? Xgrid is Apple’ s clustering technology built into Mac OS X. Xgrid can speed up a batch conversion by dealing out a video to each available CPU on your network for conversion.
Panther Agents: Y ou will need to download the Xgrid Agent for Panther fr om Apple’ s website: http://www .apple.com/support/downloads/xgridagentformacosx103.html Once installed, there will be a new Xgrid option in System Pr eferences. It has a similar window as shown above and should be fi lled out in the same manner .
Chapt er 1 3: T idbits "But the most important rule, the rule you can never forget, no matter how much he cries or how much he begs...never , never feed him after midnight.
Video Stitching Video Stitching = Combining all the fi les in the video list into one massive fi le big enough to tell your grandkids about. Stiching is available for the iPod, DV , MP4, AVI, and MPEG formats, and is enabled by selecting the “Stitch Videos T ogether” checkbox in the main window .
Chapt er 1 4: T roubleshooting "Son, you tried your hardest and failed miserably . The lesson is: Never try ." - Homer J. Simpson 35.
Hey , my video’ s out of sync. What gives? Sometimes, a video fi le will get out of sync during conversion. It’ s usually more noticeable near the end of the video. T wo possible ways to solve this: 1. Switch decoding methods. In the Advanced panel, check the “Force” box and try converting with QuickTime or ffmpeg Decoding.
Chapt er 1 5: Appendix "...But what I'd really like to do is drive a fl aming bus thr ough a wall of TVs with a stick of dynamite strapped to my head.
(vermiform appendix) 38.
Appendix A: Cheat Codes "The arcade version of Gradius is r eally dif fi cult, right? I never played it that much, and there was no way I could fi nish the game, so I inserted the so-called Konami code (laughs).
What in the world is a “cheat code”? How do I rescue the princess? A “cheat code” in this sense is a very advanced setting for people who want to go above and beyond the GUI. A cheat code could also be a way to use VisualHub in strange, horrible ways.
Appendix B: Suppor t ed Codecs/F or mats “Note, the names of encoders and decoders dont always match, so there ar e several cases where the above table shows encoder only or decoder only entries eve.
Extra Information What follows are charts of supported video/audio codecs and container formats for import into VisualHub. Supported output formats are the selection tabs in the main interface. “Partial” means not all fi les in that format/container ar e supported - it’ s hit or miss depending on container/codec-speci fi c information.
Appendix C: Cr edits and Ot her Inf o 43.
Cr edits ffmpeg ©2006 ffmpeg Contributors. ffmpeg is a trademark of Fabrice Bellar d. http://ffmpeg.sour ceforge.net F AAC, F AAD ©2004 AudioCoding - http://www .audiocoding.com libvorbis, libogg © 1994-2006 Xiph.org - http://xiph.org liba52 http://liba52.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Apple VisualHub è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Apple VisualHub - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Apple VisualHub imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Apple VisualHub ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Apple VisualHub, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Apple VisualHub.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Apple VisualHub. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Apple VisualHub insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
