Category Archives: Uncategorized

The story behind the Windows XP background photo #photography

Energy Blue desktop, featuring the new Royale ...
Image via Wikipedia

I always thought it looked like rolling hills in northern California. But I had heard otherwise – from people supposedly “in the know”. But they were wrong – the photographer who took the photo says he took it in Napa County area.

Windows XP desktop screen is a Napa image.

 

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University of British Columbia students redefine the “lipdub” video phenomena

Green College and its surroundings on UBC campus
Image via Wikipedia

University of British Columbia students created a “LipDub” promotional video for UBC and have raised the ante in the genre of lipdub videos. How many lip dub videos have you seen that feature a unicorn, underwater and aerial scenes and had separate production units for the underwater and aerial scenes?

Watch the video here http://www.youtube.com/watch?v=Dpp3quce1Vo&feature=player_embedded

Web site, news stories about the video … UBC LipDub – News.

Update: Not as well known, the UBC – Okanagan campus also released their own school spirit lip dub video. By coincidence it was video taped the same day as students at the larger UBC-Vancouver campus were shooting their video!

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Interested in attending the NAB Show?

NABshow Las Vegas, NV; NAB 2008

The 2011 National Association of Broadcasters convention (or just “NAB Show”) will be held April 9-14 in Las Vegas. The entire world of broadcasting, radio, television, film production, media, related software, transmitters, lighting, sound, cameras, DSLRs, video, online media production – you name – will be in Las Vegas.

NAB is huge. Mind blowingly huge.

You can receive a free, complimentary registration as follows:

We have a special registration code you can pass along to your readers, giving them FREE ACCESS to the exhibit floor, the Opening Keynote and State of the Industry Address, Info Sessions, Content Theater, Exhibits and PITS – a $150 value. Please pass this along and visit http://bit.ly/NABRegSM06 to redeem or register at http://nabshow.com/register with the code SM06.

More information on the NAB Show at http://blog.nabshow.com

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The “Lip Dub” video phenomena about to sweep YouTube

Back in July of 2008, students at Hochschule Furtwangen University created a video they called “University LipDub #1“. Go watch it – its fun! Created as a single long moving camera shot, the video features numerous students collectively lip synching to a piece of music.

They created a web site, universitylipdub.com to encourage other campuses to create similar videos – they even included some tips on how to make your own. And they encouraged other universities to create their own. (They were not the first with this idea – for example, a group of Microsoft employees made their own lip dub back in December 2007. The founder of Vimeo first suggested the idea and coined the term “lip dub”.)

The idea for these may have originated, in part, from the incredible Russian Ark – the only feature film produced with a single take. Over 2,000 actors and 3 live orchestras – 300 years of Russian history come to life in this spectacular motion pictured filmed in a single day in the Hermitage Museum in St Petersburg, Russia. (I was mesmerized by the spectacle of this amazing movie. This is a six star movie.)

It took until the 2nd half of 2009 for the lip dub phenomena to begin to take off. We are in only the earliest stage of this – these videos are likely to sweep the online world within the next few months.

Why would I want to use 24p mode on my camera?

Today, many video cameras provide a “24p” mode for recording video at 24 frames per second.

The default or normal mode of most video cameras is “60i” which is 60 half frames per second. Many cameras also now feature a “30p” mode or 30 frames per second.

Why all these choices?

See below – 60i is an old technology that we still use for historical reasons.

If you are making your video for online distribution, you definitely want to choose 30p or 24p mode. These record in “progressive” (like a digital still camera rather than the funky interlaced 60i mode) which is also compatible with computer displays.

Consequently, if you want to output to the web or to a computer, you will want to use 30p or 24p “progressive” modes to avoid the “interlace jagged edges” of 60i. (It is possible to de-interlace video too – but that is for another day.)

So why 24p?

Some people like that it looks like 24 fps film. I like it for a much different reason: better low light performance and better compressibility for the online world.

When you shoot at 60i, you’ll typically use a shutter speed of 1/60th of a second. When you shoot at 30p, you’ll likely use either 1/60th or 1/30th of a second.

At 24p, you’ll likely use either 1/48th or 1/24th of a second.

1/24th of a second lets in 20% more light than 1/30th of a second and more than twice as much light as 1/60th of a second.

Consequently, 24p has some what better low light performance – that is, the camera will add less video amplification, which adds a bit of noise or graininess to the images. Shooting in 24p means cleaner, less grainy images – compared to higher shutter speeds.

Another advantage is editing and compressing for the web.  A video clip recorded at 24p has 20% fewer frames than one recorded at 30p – so it takes less time. And there are situations where I’ve recorded a live event that I turn around and post online as fast as possible.

Another issue is compression. For a given video streaming data rate, say 1 Mbps, 24 fps will will compress a bit better than 30 fps. But do realize it is not a straight forward “definitely better” as MPEG4 compression depends heavily on the nature of the content of the frame.

Editing 24p

Unfortunately, this may require an advanced or professional editing package. I can’t help you there very much, but I did write some info about doing this on a Mac. (I also do some editing on Windows but have not tried this there.) Some additional information is also here.

About Coldstreams Online Video Blog

This web site is in development and will feature:

  • How-to information on creating the best quality online video
  • Including production and editing tricks
  • Encoding methods
  • Best quality video upload sites
  • A lot of “how to” information for getting the best quality video from various types of cameras ranging from consumer video to professional video (including HD), and ultra low cost methods too
  • Online video tutorials will show how to get it done

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This web site start up has been momentarily delayed due to 5 feet of snow falling in less than 2 weeks time and the need to spend 3 to 4 hours every day in “snow management”. Real Soon this site will get underway!