3D Sound
This strange little figure shows impulse responses for the right ear of the Kemar acoustic head model, at zero degrees elevation, plotted radially. The white circle in the center can be thought of as the position of the head, and the waves surrounding it can be thought of as incident waves moving inward toward the head. The first arrival of sound is earliest when the source is directly to the right of the right ear; when the source is on the left side of the head, the sound arrives after a long delay, and is attenuated (the "head-shadow" effect). Click on the figure to see an expanded view of it, animated to show the data at multiple elevations. Click here for more information on the KEMAR acoustic head model, or to download the Head-Related Transfer Function (HRTF) data set from MIT. |