Line Following

Following an irregularly shaped line in an audio display is difficult. One way to make line following easier is to encode details (for example position or direction) of the line in various dimensions of sound.

The distance between the cursor and a line feature (independent variable) determines the value of the sound parameter (dependent variable).

Each dimension of sound can be the dependent variable in the sound shape. The dependent variable may increase as the cursor approaches the line (left side of the image) or decrease (right side of the image). Changes may have a set step size (top row of the image) or change at a constant rate (bottom row of the image).

Additional discussion about line following is available as part of the CHI 2011 Works In Progress.