This page keeps the code used for the experiments in the paper:
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&nbsp;&nbsp;  Rob Voigt, Robert J. Podesva and Dan Jurafsky. 2014. Body Movement Correlates with Prosodic Indicators of Engagement. Proceedings of Speech Prosody 7.
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It is available here: <a href="pipeline.zip">pipeline.zip</a>
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The readme file contained therein has a list of the YouTube videos used, and the pipeline.sh script can be used to download and process them. 
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Pipeline.sh is a bash script that assumes a Unix build (Linux or OSX should be okay); it has dependencies on python, ffmpeg, sox, pafy, and praat. Python, ffmpeg, and sox should be callable from the command line; you should edit the variables in pipeline.sh to point to the locations of pafy and praat.
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The code will not be maintained, but please feel free to contact us at robvoigt(at)stanford.edu with any questions!