Showing posts with label Video training. Show all posts
Showing posts with label Video training. Show all posts
Tuesday, August 4, 2009
Burza i deszcz - Efekt specjalny w Ulead VideoStudio 11.
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Tuesday, August 4, 2009
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Monday, June 22, 2009
Capturing video in MovieMaker 2 ... which format to choose?
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Monday, June 22, 2009
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Transferring video from a digital camcorder and capturing it onto your hard-drive can be difficult. That’s because digital video creates enormous file sizes that can be difficult to save onto your computer’s hard drive. Until recently, video capture was the hardest step for the home video maker as it was fraught with hardware conflicts, system crashes, and dropped frames … and tended to progress toward splitting headaches.
Fortunately, Microsoft’s latest video editing software, Movie Maker 2, makes the capture process relatively painless. This is due in part from the Windows XP operating system and its built-in native support for capturing digital video and digital pictures. On top of that, Moviemaker’s capture wizard is simple, straightforward, and a huge boon for the amateur video maker who wants to jump into computer video and not worry about the idiosyncrosies of capturing. .
However, before you capture video in Movie Maker 2, you have to answer an important question:
What format do you want to capture into?
You see, MovieMaker lets you capture in both the traditional DV-AVI format, and also in its own WMV format. Each has its own merits, so I’d like to tell you more about each of these formats so you can make an informed decision.
The DV-AVI format
Fortunately, Microsoft’s latest video editing software, Movie Maker 2, makes the capture process relatively painless. This is due in part from the Windows XP operating system and its built-in native support for capturing digital video and digital pictures. On top of that, Moviemaker’s capture wizard is simple, straightforward, and a huge boon for the amateur video maker who wants to jump into computer video and not worry about the idiosyncrosies of capturing. .
However, before you capture video in Movie Maker 2, you have to answer an important question:
What format do you want to capture into?
You see, MovieMaker lets you capture in both the traditional DV-AVI format, and also in its own WMV format. Each has its own merits, so I’d like to tell you more about each of these formats so you can make an informed decision.
The DV-AVI format
The first format you capture into is DV-AVI. This format, also known as DV or “digital video” is the video compression format that your camcorder captures onto tape. Thus, when you film a video, your camcorder saves the video information onto magnetic tape as a series of “0s and 1s” in the DV-AVI format. This digital format is great, as the video is saved at an outstanding resolution of 720x480 pixels running at 30 frames per second. In other words, you are getting video that is potentially higher quality than a commercial DVD. DV-AVI is the capture and editing format of choice for all other video software programs and any video-related software will recognize and work with this format.
However, the digital video format is not without its problems … the major inconvenience being the huge file sizes. You see, DV-AVI video takes up a lot of space. Each minute of video takes up a whooping 200 megs of space on your computer's hard-drive. That means an hour tape will occupy about 13 gigabytes of hard-drive space … that’s a lot of space!
Because the format is so big, many older home computers have problem capturing and saving the video fast enough, resulting in “dropped frames” whenever the computer’s hard-drive slows down below a critical level. Fortunately, almost all computers running Windows XP are fast enough to capture DV-AVI video, so this isn’t really an issue. Still, if you don’t have much hard drive space available you’re going to run into problems. Most intermediate and advanced video users have extra hard-drives to save and backup their video projects, though this isn't necessary for the beginner.
However, the digital video format is not without its problems … the major inconvenience being the huge file sizes. You see, DV-AVI video takes up a lot of space. Each minute of video takes up a whooping 200 megs of space on your computer's hard-drive. That means an hour tape will occupy about 13 gigabytes of hard-drive space … that’s a lot of space!
Because the format is so big, many older home computers have problem capturing and saving the video fast enough, resulting in “dropped frames” whenever the computer’s hard-drive slows down below a critical level. Fortunately, almost all computers running Windows XP are fast enough to capture DV-AVI video, so this isn’t really an issue. Still, if you don’t have much hard drive space available you’re going to run into problems. Most intermediate and advanced video users have extra hard-drives to save and backup their video projects, though this isn't necessary for the beginner.
Windows Media Video 9
Movie Maker 2 offers you the ability to capture your video into its own “wmv9” format. The windows media format is set as the “recommended” default setting when you first attempt a capture … partly from Microsoft’s desire to dominate the video market with its own proprietary video format.
That’s not to say that WMV is bad … quite the contrary, this video format is great, and saves your video into incredibly high-quality video that takes up 1/10th the space as DV. In fact, the quality of WMV9 is so good that some movie theatre companies are switching to digital projectors, dumping their old fashioned film projectors, and projecting their movies from WMV9 files. The compression level of WMV9 is incredible and allows you to backup and create collections of videos on your computer, just like you might already do with your MP3 audio collections.
However, the WMV9 format has its own problems which may turn you away from the format for capturing video. When first capturing your camcorder movie through a firewire cable, to save the movie into WMV your computer has to “re-encode” the video into the WMV9 format “on the fly”. Even if you set the compression level to highest quality, you are going to loose some of your video image quality through the encoding process. You ALWAYS loose image quality when you re-encode a video, no matter how high your settings are set … that’s the nature of video compression.
The other problem with the format, is that it’s Microsoft’s proprietary format, and no other program uses or recognizes WMV9. That means you’re stuck using Movie Maker for editing. On the other hand, you were probable going to use MovieMaker 2 anyway.
So which one do you choose?
That’s not to say that WMV is bad … quite the contrary, this video format is great, and saves your video into incredibly high-quality video that takes up 1/10th the space as DV. In fact, the quality of WMV9 is so good that some movie theatre companies are switching to digital projectors, dumping their old fashioned film projectors, and projecting their movies from WMV9 files. The compression level of WMV9 is incredible and allows you to backup and create collections of videos on your computer, just like you might already do with your MP3 audio collections.
However, the WMV9 format has its own problems which may turn you away from the format for capturing video. When first capturing your camcorder movie through a firewire cable, to save the movie into WMV your computer has to “re-encode” the video into the WMV9 format “on the fly”. Even if you set the compression level to highest quality, you are going to loose some of your video image quality through the encoding process. You ALWAYS loose image quality when you re-encode a video, no matter how high your settings are set … that’s the nature of video compression.
The other problem with the format, is that it’s Microsoft’s proprietary format, and no other program uses or recognizes WMV9. That means you’re stuck using Movie Maker for editing. On the other hand, you were probable going to use MovieMaker 2 anyway.
So which one do you choose?
If you are going to capture a short section of video from your camcorder, say … less than 10 minutes (or if the video quality must be the highest quality), I recommend sticking with the original DV-AVI format. If you are hard-pressed for hard-drive space, or must capture a long amount of tape, the WMV9 format is just fine. However, if you do go with WMV9, I recommend not using the “recommended” setting for capture. Go ahead and set the capture quality level to the absolute maximum (called “high quality” at 720 x 480) as you should always start with the highest quality source video before you begin editing.
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An alternative to burning DVDs ...the VCD!
Label: Video trainingWhen people talk about burning movies on disk, you probably think of DVDs. After all, the DVD format is very popular in the US and many over-hyped computer commercials taut how easy it is to burn your movies onto a blank DVD disk.
However, burning a DVD is not necessarily an easy or inexpensive endeavor. While the price of computer DVD writers and blank disks are coming down rapidly (and will soon be as ubiquitous as CD-writers), burning your own DVD can be pricey. DVD writers cost about $300 and good DVD media still costs over $4 (8 dollars in the store).
To further confuse the picture, DVD (as a recording format) has not yet matured. There are several different disk formats (DVD-R, DVD+R, and DVD-RAM) and each has variable compatibility with set-top DVD players. In addition, every brand of blank DVD has different compatibility … a homemade movie burned onto a Verbatim DVD-R may play on different DVD players than the same movie burned on a Pioneer DVD-R.
Enter the VCD
However, burning a DVD is not necessarily an easy or inexpensive endeavor. While the price of computer DVD writers and blank disks are coming down rapidly (and will soon be as ubiquitous as CD-writers), burning your own DVD can be pricey. DVD writers cost about $300 and good DVD media still costs over $4 (8 dollars in the store).
To further confuse the picture, DVD (as a recording format) has not yet matured. There are several different disk formats (DVD-R, DVD+R, and DVD-RAM) and each has variable compatibility with set-top DVD players. In addition, every brand of blank DVD has different compatibility … a homemade movie burned onto a Verbatim DVD-R may play on different DVD players than the same movie burned on a Pioneer DVD-R.
Enter the VCD
If you don’t want to spring for a DVD writer, there is a cheaper alternative. Using your computer’s CD-writer you can burn your movie onto a normal CD-R blank, and create a VCD, or “video cd.” This format is very popular in Asia, and has been around longer than DVD. Part of VCD’s popularity is that these movies are burned onto normal CD blanks … cheap CD-R’s that you can buy for 15 cents each! The affordability of VCDs allows you to experiment and distribute your video to friends at very low costs. These VCDs will play in most tabletop DVD players, though some older DVD players have problems recognizing them.
What’s the catch?
What’s the catch?
The video quality of a VCD is much lower than a DVD. That’s because a CD-ROM can only hold 650 Megs of data, compared to DVD’s 8 gigs (for a dual-layer DVD). To fit video into that tiny space, VCD video is highly compressed and runs at 352x240 resolution (compared to DVD’s resolution of 720 by 480). The picture quality for a VCD is roughly comparable to VHS tape. However, with VCD’s you may see some compression artifacts (edge blockyness) during dark, fast-motion scenes. VCD sound quality, however, is excellent and full stereo.
A VCD can only hold 76 minutes of video, so VCD movies are typically split over two CD’s. You can think of a VCD as the video equivalent to an audio CD … as they both hold only 76 minutes of data.
How do you make a VCD?
A VCD can only hold 76 minutes of video, so VCD movies are typically split over two CD’s. You can think of a VCD as the video equivalent to an audio CD … as they both hold only 76 minutes of data.
How do you make a VCD?
To make a VCD, you need to encode your video into VCD-compliant MPEG1 video file. Many video editing software packages will let you export your final movie directly into this video format, and some will even burn the VCD for you. The major burning software (Roxio and Nero) will both burn VCDs, though you may need an encoder to create the MPEG1 file first.
What is MPEG1 video?
What is MPEG1 video?
MPEG1 video is a compression algorithm that yields very good video at low bit rates. Better yet, it’s non-proprietary (neither Microsoft, Apple, nor Real own it) so you can think of MPEG compression as the video equivalent of MP3 music compression. DVDs themselves are encoded with second generation MPEG2 compression format -- this encoding format yields fantastic quality, but generates large files sizes and takes more processing power to encode/decode.
To convert my digital video files into VCD, I either export the video out of Adobe Premiere as a VCD file, or I use the TMPGE Tsunami encoder. This encoder is a great piece of software that I use almost daily to convert my digital video DV-AVI files into MPEG1 files for VCD and MPEG2 for DVD. I can also compress my videos into smaller MPEG1 files for watching on my PocketPC.
Burning the VCDAfter encoding your video(s) into the appropriate MPEG1 format, you can then burn it onto a CD-R. To burn a VCD, you have to tell your burning program to specifically burn a VCD. You can’t just copy the files onto a CD-ROM and expect it to play ... the way that VCD’s are burned is much different than a normal CD-ROM. You have to tell your burning software to specifically burn a VCD. Fortunately, most burning software have helpful wizards to walk your through this.
Watching on your DVD player!
To convert my digital video files into VCD, I either export the video out of Adobe Premiere as a VCD file, or I use the TMPGE Tsunami encoder. This encoder is a great piece of software that I use almost daily to convert my digital video DV-AVI files into MPEG1 files for VCD and MPEG2 for DVD. I can also compress my videos into smaller MPEG1 files for watching on my PocketPC.
Burning the VCDAfter encoding your video(s) into the appropriate MPEG1 format, you can then burn it onto a CD-R. To burn a VCD, you have to tell your burning program to specifically burn a VCD. You can’t just copy the files onto a CD-ROM and expect it to play ... the way that VCD’s are burned is much different than a normal CD-ROM. You have to tell your burning software to specifically burn a VCD. Fortunately, most burning software have helpful wizards to walk your through this.
Watching on your DVD player!
Once you’ve created your VCD you can pop the disk into your DVD player and watch it. Keep in mind that DVD players can be finicky when it comes to home-made VCDs (this is also true of home-made DVDs) and you may have to experiment with different brands of CD-R media until you find one that your player likes. To find out which media is compatible with your DVD player, you may want to read the user-comments left at VCDhelp.com. From my experience, the cheapest CD-Rs seem to work the best. Also, among the DVD players that I’ve tested, the Sony’s had the most problems recognizing disks, while my Pioneer player will read anything you throw at it.
What about SVCD?
What about SVCD?
SVCD, or “Super video CD,” works just like a VCD and is also written onto blank CD-Rs. However, SVCDs are created with the higher quality MPEG2 compression (similar to DVD encoding) with higher 480x480 resolution. The resulting video looks much better than VCDs, but still worse than DVD. Using this format, you can fit about 35 minutes of video onto a CD. Fewer DVD players can actually play SVCDs, but if yours can, then this is a great format for showing off your home movies to friends as the video quality is pretty great.
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