The "Image Assistant 2.1" is an interactive JAVA Applet that calculates the localization curves of arbitrary 2- and 3-channel stereo microphone configurations. 

Take a look at the theoretic basis (German) of the Image Assistant (background information about the psychoacoustical and mathematical fundamentals of the localization curves). Note that now the APP "Image Assistant 3" Beta exists that exceeds the capabilities of this JAVA Applet.

Instructions for the use of the applet

For the applet, a Java runtime needs to be installed. I'm sorry that the JAVA security guidelines block the execution of the applet for some systems. 

 

Input parameters:
Microphone configuration: yellow box at the top left
Base B	spacing between microphones L and R
height h	spacing between the Base B and microphone C
epsilon	angle between microphone L or R and the central symmetry axis
distance	distance of the sound sources
Mic L	polar pattern of microphone L
Mic C	polar pattern of microphone C
Mic R	polar pattern of microphone R
Configuration	Presets, both for 2ch and 3ch setups
Button "animate"	shows graphical simulation of the microphone setup geometry
Button "set"	shows popup window to change the time offsets of the microphone channels
Navigation area: green box on the right
Radio buttons "2 Mics/3 Mics"	Choice between L/R setup (2 Mics) and L/C/R setup (3 Mics)
Show Localization	shows localization curves on the main axis, checkboxes for choosing the curves
Signal Relationships	shows signal relationships (Delta t and Delta L) on the main axis
Signal differences	shows signal differences (Delta t and Delta L) on the main axis, radio buttons for chosing the analyzed loudspeaker pair
Loudspeaker configuration: blue box at the top right
base width	spacing between loudspeaker L and R
Setup	location of the loudspeaker C
Listen	Presets for the listening position
vertical offset	distance between the sweet spot and the listening position (front/back)
horizontal offset	distance between the sweet spot and the listening position (left/right)
Legend: yellow box on the bottom right: depicts the graphs shown in the main window
Main window: shows the graphs