2008/11-06

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{{Cluedump
{{Cluedump
|title=Audio and video compression
|title=Audio and video compression
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|date=2008-11-04 20:30
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|date=2008-11-06 20:30
|presenters=Keith Winstein (keithw)
|presenters=Keith Winstein (keithw)
|location=4-231
|location=4-231
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|notes=[http://web.mit.edu/keithw/Public/compression-cluedump/slides.pdf Slides]
|abstract=
|abstract=
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Audio and video compression!
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Data compression, and audio/video coding. Some intro to information theory, codes, and compression. Then we'll talk about how MP3 and AC3 work, and how MPEG-2, DVDs, Blu-rays, and HDTV work -- including colorspaces, chroma subsampling, Huffman codes, the discrete cosing transform, and the amazing data-saving technique of blurring. I'll do some demos.
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Here is the [http://web.mit.edu/keithw/Public/compression-cluedump/ source code] to the audio-masking and MPlayer demos.
}}
}}

Latest revision as of 01:50, 8 November 2008

[edit] Audio and video compression

Date: November 6, 2008, at 3:30 PM
Presenters: Keith Winstein (keithw)
Location: 4-231
Notes: Slides
Abstract: Data compression, and audio/video coding. Some intro to information theory, codes, and compression. Then we'll talk about how MP3 and AC3 work, and how MPEG-2, DVDs, Blu-rays, and HDTV work -- including colorspaces, chroma subsampling, Huffman codes, the discrete cosing transform, and the amazing data-saving technique of blurring. I'll do some demos.

Here is the source code to the audio-masking and MPlayer demos.

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