|
Dear List,
http://www.youtube.com/watch?v=3UgpfSp2t6k Courtesy of Tamás Harczos, 3 low-pass filtered versions of this video are available at: http://mp4.newtom.info/Video%20%28processed%29/ These versions have been audio LP-filtered at 250, 750, and 8000 Hz. In addition, the 250 Hz and 750 Hz videos have been spatially blurred. Tamás said: >> For the 250 Hz version I used these video filters: >> - temporal smoother (strength: 10) >> - box blur (radius:3, power:3) >> - temporal smoother (strength: 10) >> - box blur (radius:3, power:3) >> - temporal smoother (strength: 10) >> - box blur (radius:3, power:3) >> >> For the 750 Hz version I removed one pair of filters. These remained: >> - temporal smoother (strength: 10) >> - box blur (radius:3, power:3) >> - temporal smoother (strength: 10) >> - box blur (radius:3, power:3) Courtesy of Dan Ellis, here is a version of the video in which the actress’ pitch track is emulated by an amplitude- and frequency-modulated sine wave: http://www.youtube.com/watch?v=1-uHJ6rQtfM And a version of the original video, showing the voice pitch track in the lower left corner: http://www.youtube.com/watch?v=cogUjzqe2zg And finally, a version where her facial movements have been blurred to emulate low-pass filtering of the video image. About this version, Dan said “I also had a go at "smoothing" the video with a simple one-pole filter (each output frame = 0.9*last output frame + 0.1*this input frame). It doesn't look all that good, because she moves her head around. But just for your interest.”
http://www.youtube.com/watch?v=P7VuBrhIkkI Regards,
Aniruddh D. Patel Associate Professor Dept. of Psychology 490 Boston Ave. Medford, MA 02115 http://ase.tufts.edu/psychology/peoplePatel.htm |