Data Compression (Wikipedia) & DVD-HQ: Data Compression basics: Lossless and Lossy gave a very clear explanation of data compression. I have used a sip drive before, but never understood how it worked. I really thought that the DVD-HQ article gave a great lesson on coding. I enjoyed trying to decipher their examples. I also came to the conclusion that the phone system my family had several years ago must have used Lossy data compression. The phone system worked, but I had to work to understand my Dad clearly, it didn't matter where he was calling from. It wasn't the volume, I could understand the individual words, but there was still a problem and I couldn't put my finger on it. Now I think that the Lossy data compression and decompression process lost certain frequencies, pitches, or sounds that it deemed not perceptible to the human ear, but were the parts that made my father's speech flow together. I thought that these two articles were perfect for the MLIS student who doesn't have a strong science background.
Imaging Pittsburgh pulled together a lot of the ideas that we have been talking about in class. It was good to see the jargon Metadata used in the real world. It really helped solidify it's meaning. It was also interesting to see the different groups working together, for both common and individual informational goals.
YouTube and libraries is an example of someone stating the obvious that no one else has noticed yet. Does that make sense? What a great idea. Speak to people where they're used to paying attention. My son's language arts class read Caldecott award books several years ago, made video presentations and then awarded the "Best of the Caldecott" trophies. This would be something fun that a teen group could produce on YouTube. Lots of ideas can branch off from here. I've emailed this article to my churches publicity person.
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3 comments:
Hi Joy,
I agree with you about Youtube being the place to reach people where they are comfortable going.
I also liked your phone example of lossy data. It does make sense that it would effect your audio. The Wikipedia article was great for me as well. I do not have a strong IT backgound and this was an article that I could understand.
I agreed with what you said about the Pittsburgh article solidifying the meaning of metadata. It was interesting to see the term used in a real life situation, and to also see an information professional assert the importance of metadata.
Hi Joy,
For the Pittsburgh article I thought it was interesting how all of the institutions came together to create the metadata for the images and how they still kept spaces for their own unique metadata. I agree that it was a good "real world" example.
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