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Download and Play Aperture

Aperture was written by John Bischoff in 2002

Hear sounds through a moving window.

Download this executable JAR file: Aperture_20200615.jar


  1. Download the JAR file above.
  2. Locate the file on your computer then Right-click or Control-click the JAR file and select Open. The first time you run it you will get a warning that the app is not signed. That is normal.
  3. Click the Open button.
  4. If you cannot open the JAR file then you will need to install Java from Oracle. Learn more... Then try again to open it.
  5. (After you run it the first time, you can run it again just by double clicking the JAR file.)
  6. Enter your name or a nickname. Hit Login button...
  7. Create a new room, or enter an existing room if available...
  8. You are now running the piece and can interact with anyone else who logs into that room.

How to Play

  • Click down in the "Aperture" window and drag the mouse. Your
    sound in this piece is created by a rapid looping mechanism that
    reads forward and back through a very short slice (i.e. the
    'aperture') of a sound file.
  • Mouse down randomly picks a new sound file from nine
    available and starts your sound; mouse up stops your sound.
  • Horizontal motion sets the location of the aperture within
    the sound file.
  • Vertical motion changes your loudness.
  • In addition to rapid motions across the entire sound file,
    try the smallest possible motions at the edges of amplitude
    peaks for an interesting area to explore. Also note that some
    horizontal motions add or subtract small amounts of musical
    noise or alter the width of the aperture as you play.

For historical interest, visit the original non-working Applet

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