Archive for July, 2009

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  • Inside a Place (without a face)

    Monday, July 27th, 2009

     

    Adam Rokhsar
    2009
    materials: TV, MacBook
    software: ffmpegX, avidemux2, Max/MSP/Jitter

    A movie file incorrectly converted by ffmpegX and captured from avidmux2 is the basis for this experiment in video and audio feedback.

    “The story I am trying to tell you…”

    Thursday, July 23rd, 2009

    Adam Rokhsar, 2009

    materials: computer, Canon PowerShot A630

    software: Max/MSP/Jitter, ffmpegx, avidemux2

    I took pictures of myself using my Canon digital camera using a very slow shutter speed. The pictures were processed with OpenGL and converted in Max to a movie, which I then hacked with avidemux2 to add static and the compression error effects.

    I recorded myself speaking a short text and loaded the audio into Max. By extracting the amount of motion from the video using frame differencing, I could map that number inversely to the sampling rate of the audio, so that my voice could only be heard in fragments of visual motion.


    with regards to time

    Thursday, July 23rd, 2009

    Adam Rokhsar

    2009

    materials: computer, camera, microphone

    software: Max/MSP/Jitter

     

    I created the audio for this piece using computer vision techniques, and the video was made out of analysis of the audio signal. Rubbing my finger over the camera produced a pitch, and then the zero-crossing of the resulting waveform are displayed in the screen on the top half of the screen. The camera’s output is displayed on the bottom half along with the zero-crossings of the second audio channel.


    A Model Gait

    Wednesday, July 8th, 2009

    An animation I made using stop motion capture and after effects. Just a little something to get the creative juices flowing. It’s inspired by the 1878 motion capture photos of a horse galloping shown below.

    race_horse_gallop