Calculating possible Reflection Surface Positions


In evaluation of ETC plots, we often have reflections of a given delay time, and want to guess which surfaces could have caused them. This calculator can help a bit to imagine this.

Please enter the following parameters, and press "Calculate" to get plots where possible reflection points would be around the axis between speaker and measurement microphone (in graph 1 below this is the X axis). The images are generated using PHP, and can be saved as PNG images.

Constants:

Speed of Sound: m/s(343 m/s for normal environments)
Distance Speaker to Mic: m

Evaluation Parameters:

Reflection Delay: ms
Offset from Center: m(Optional, the Offset of the reflective Surface from the center between Speaker and Microphone)




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