2008/11-06

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[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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