how to use the .exe

The window which opens when you launch sound2d.exe is a plan view of
a room.  Click the left mouse button to move the position of the 
sound source.  Click the right mouse button to move the position of 
the listener.  Drag the window to change the size and shape of the 
room.

There is a file menu which allows the user to open and play a sound 
file.  The sound file must be monaural, 16 bit samples, and recorded 
at 11025 samples/second.  The sound card must be able to support 
stereo output at this sampling rate.

The text space at the bottom gives the azimuth and range of the sound 
source relative to the listener, as well as the number of taps and 
last tap position for the right and left ear filters.

Five sound rays are shown.  The blue ray is the direct ray from sound 
source to listener.  The four green rays are first order reflections 
of the sound off the walls of the room.

